Journal articles: 'Prosthetic esophageal'

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Hilgers, Frans J. M., and R. Theo Gregor. "Prosthetic Voice and Pulmonary Rehabilitation." Otolaryngology–Head and Neck Surgery 112, no. 5 (May 1995): P185. http://dx.doi.org/10.1016/s0194-5998(05)80501-7.

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Educational objectives: To understand the prospects of postlaryngectomy prosthetic voice and pulmonary rehabilitation with an indwelling voice prosthesis system, related appliances and HME and to comprehend the possibilities of prosthetic voice rehabilitation after various pharyngeal and/or esophageal reconstructions.

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Mukherjee, Monoj, and Siddhartha Das. "Efficacy and Safety of Duckbill Valve Voice Prosthesis in Comparison to Provox." Bengal Journal of Otolaryngology and Head Neck Surgery 27, no. 2 (August 31, 2019): 149–53. http://dx.doi.org/10.47210/bjohns.2019.v27i2.242.

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Introduction Voice rehabilitation is the most important issue after total laryngectomy as source of vibration is removed. Three options are there like esophageal voice, electrolarynx and surgical prosthetic voice. Best is the prosthetic speech as voice is generated by lung powered air column. Provox prosthesis is the standard on and most commonly used. But it is costly for the class of patients presenting to our government hospitals. Duckbill prosthesis is very economical and may be helpful for them. There is very limited number of studies with duckbill prosthesis. Materials and Methods Twenty two post-laryngectomy patients was selected for this study. Proper counselling was done regarding cost, pros and cons of Provox and Duckbill prosthesis. Fifteen patient selected Duckbill where as seven patient have chosen Provox prosthasis. Voice analysis was done after one month of speech therapy by perceptual voice analysis protocol. Safety and complications arising from prosthesis were also noted. Results There was no significant difference in quality of voice.Both prosthesis are safe if prolong use is avoided. Conclusion There is no significant difference in the quality and safety of both the prosthesis, but huge difference in cost is present. More over it is recurrent cost as it should be changed every year or earlier. One Provox costs around rupees fifty thousand whereas a duckbill prosthesis costs rupees one thousand approximately in Indian market.

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Barakzai, Safia Z., Paddy M. Dixon, Claire S. Hawkes, Alistair Cox, and Timothy P. Barnett. "Upper Esophageal Incompetence in Five Horses After Prosthetic Laryngoplasty." Veterinary Surgery 44, no. 2 (January 31, 2014): 150–55. http://dx.doi.org/10.1111/j.1532-950x.2014.12101.x.

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Rao, Vishal Uchila Shishir, and Sataksi Chatterjee. "AUM voice prosthesis: A $1 novel modified tracheo-esophageal voice prosthesis for total laryngectomy patients (TEP)." Journal of Clinical Oncology 35, no. 15_suppl (May 20, 2017): e17549-e17549. http://dx.doi.org/10.1200/jco.2017.35.15_suppl.e17549.

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e17549 Background: Patients undergoing total laryngectomy require subsequent voice rehabilitation, which can be done by different modalities. The tracheo-esophageal voice prosthesis provides the clarity of speech and has a high rate of success in terms of acquisition of post laryngectomy speech.In this pilot study we evaluate the functionality of a modified trachea- oesophageal prosthesis to be used in primary and secondary trachea- esophageal puncture in 30 patients of total laryngectomy. Methods: This study was conducted at Health care Global Cancer Centre to evaluate the role of a novel trachea-oesophageal prosthesis for total laryngectomy +/- partial pharyngectomy patients from 2015-2016. 30 patients will be enrolled as an inpatient or outpatient. Post TEP insertion evaluation: Patients, who are undergoing primary TEP insertion, will be evaluated for speech/ voice interval of 6weeks, 12 weeks and 6 months. Objective assessment of speech Assessment of the incidence of TEP leak clinically after a test fluid feed. Through the prosthesis (intra TEP leak) Around the TEP leak (peri TEP leak) Assessment of the extrusion rate of the TEP device Assessment of the complication rate associated with the procedure/TEP Results: On objective assemsmsent of speech, all patients (100%) used prosthesis were able able to phonate and communicate using intelligible speech. 10% patients developed intra TEP leak immediately after insertion of prosthesis, 6% within 3 months of insertion, & 3% developed peri tep leak. All patients were immedaitely given a repalcement prosthesis and leaks corrected. Extrusion was seen in 3% of the patients. None reported any complications. Conclusions: Aum voice prosthesis is a excellent and affrodable tracheo oesophageal prosthetic device to enable and empower patients speeech rehabilitation. Clinical trial information: NCT03039465.

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Naik, Sudhir, Rajshekar Halkud, KT Siddappa, Akshay Shivappa, Siddharth Biswas, Ashok M. Shenoy, KC Sunil, M. Samskruthi, Jagdish Sarvadyna, and Purshottam Chavan. "Blocked Voice Prosthesis: A Common Complication Reducing the Prosthesis Longevity." International Journal of Head and Neck Surgery 5, no. 2 (2014): 66–71. http://dx.doi.org/10.5005/jp-journals-10001-1184.

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ABSTRACT Background/Objectives Mechanical prosthetic valve rehabili tation after total laryngectomy have a success rates of 90% in restoring voice. The effective speech is achieved better with mechanical voice prosthesis when compared to esophageal speech and electrolarynx. Candidal growth and tubal blockage are the commonest cause of peri and endotubal leakage causing prosthesis failure. Case report A 50-year-old male who had undergone wide field laryngectomy with primary tracheoesophageal puncture (TEP) with voice prosthesis 18 months back complained of blocked voice prosthesis and peritubal leakage. The tip of the cleaning brush which had blocked the opening was removed in the outpa tients under topical anesthesia and the peritubal block reduced. Conclusion Mechanical valve prosthesis rehabilitation after primary tracheoesophageal puncture is the standard voice rehabilitation of laryngectomized patients. Patient education regarding maintenance of the prosthesis and the care for the tracheostoma is important in reducing the complications. How to cite this article Halkud R, Shenoy AM, Sunil KC, Samskruthi M, Sarvadyna J, Biswas S, Chavan P, Siddappa KT, Shivappa A, Naik SM. Blocked voice Prosthesis: A Common Complication Reducing the Prosthesis Longevity. Int J Head Neck Surg 2014;5(2):66-71.

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Freud, E., I. Efrati, D. Kidron, R. Finally, and A. J. Mares. "Comparative experimental study of esophageal wall regeneration after prosthetic replacement." Journal of Biomedical Materials Research 45, no. 2 (May 1999): 84–91. http://dx.doi.org/10.1002/(sici)1097-4636(199905)45:2<84::aid-jbm2>3.0.co;2-o.

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Wetmore, Stephen J., Stephenie P. Ryan, James C. Montague, Kathleen Krueger, Kathleen Wesson, Robert Tirman, and Wilma Diner. "Location of the Vibratory Segment in Tracheoesophageal Speakers." Otolaryngology–Head and Neck Surgery 93, no. 3 (June 1985): 355–61. http://dx.doi.org/10.1177/019459988509300313.

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The Singer-Blom tracheoesophageal puncture procedure for surgical-prosthetic voice restoration has proved to be a viable option for alaryngeal speech rehabilitation. Following tracheoesophageal puncture, occlusion of the tracheostoma shunts pulmonary air through the Blom-Singer prosthesis into the cervical esophagus. The pulmonary air passing through the cervical esophagus and into the hypopharynx causes a portion of the upper alimentary tract to vibrate in a manner similar to that of the pharyngoesophageal segment during the production of esophageal speech. To study the location and shape of the vibratory segment in tracheoesophageal speakers, videofluoroscopy and simultaneous voice recording were performed with 16 patients. To analyze the vibratory segment(s), photographs were made of the videotaped image white it was stopped during the patients' production of the /a/ sound. The most frequent location of the vibratory segment was in the lower third of the neck, which corresponds to cervical vertebrae C5 through C7. Five of the subjects had two separate vibratory segments and two other subjects had long vibratory segments. The vibratory segment(s) in tracheoesophageal speakers was found to be similar to the vibratory segment(s) in esophageal speakers.

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Naik, Sudhir M. "Aspirated Voice Prosthesis: A Unique Complication of Post Total Laryngectomy Voice Rehabilitation." International Journal of Phonosurgery & Laryngology 2, no. 1 (2012): 41–45. http://dx.doi.org/10.5005/jp-journals-10023-1034.

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ABSTRACT Background/objectives Prosthetic voice rehabilitation after total laryngectomy has proven to be successful in restoring proper speech function in over 90% of patients. The possibility of achieving effective speech using the voice prosthesis is superior to esophageal speech and electrolarynx. Setting Department of Head and Neck Oncosurgery, Kidwai Memorial Institute of Oncology, Bengaluru. Case report A 75-year-old female who had undergone wide field laryngectomy 14 months back came with history of lost voice prosthesis which was later found aspirated. It was removed by the bronchoscopic forceps under topical anesthesia by visualizing it by a nasal 0° wide angle endoscope. The puncture site was cleaned and allowed to cicatrize and narrow down. The fistula was closed by topical application of silver nitrate. Conclusion Tracheoesophageal puncture and prosthesis rehabilitation has emerged as the standard voice rehabilitation of laryngectomized patients. Patient education regarding maintenance of the prosthesis and the care for the tracheostoma is important in reducing the complications. How to cite this article Naik SM. Aspirated Voice Prosthesis: A Unique Complication of Post Total Laryngectomy Voice Rehabilitation. Int J Phonosurg Laryngol 2012;2(1):41-45.

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Picos, Andrei, Andreea L. Rachisan, and Alexandra Dadarlat. "Minimally Invasive Dental Treatment Using Composites and Ceramics in GERD Diagnoses Patients." Materiale Plastice 55, no. 2 (June 30, 2018): 252–54. http://dx.doi.org/10.37358/mp.18.2.5004.

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Specialty literature demonstrates the direct link between gastro-esophageal reflux diseases (GERD) and dental errosion (DE). Patients diagnosed with GERD often shown dental tissue loss in the enamel and dentine, somentimes going as far as opening the pulp chamber. Modern minimal invasive treatments make use of the current performance of cements and prosthetic materials (composites and ceramics) to conserve healthy enamel and dentine, in comparison to classic reconstruction methods.

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Ichino, Martina, Lorenza Pugni, Andrea Zanini, Anna Morandi, Fabio Mosca, and Francesco Macchini. "Possible Approach to Esophageal Lung with Long Tracheobronchial Gap." European Journal of Pediatric Surgery Reports 07, no. 01 (January 2019): e28-e31. http://dx.doi.org/10.1055/s-0039-1692407.

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AbstractEsophageal lung is a rare bronchopulmonary foregut malformation characterized by an anomalous origin of one of the main bronchi which arises from the esophagus. Less than 30 cases are reported in the literature. Therefore, there are no standardized guidelines for the treatment of this condition. We report a case of right esophageal lung diagnosed in a neonate. The patient was treated with thoracoscopic closure of the ectopic main bronchus in the neonatal period, followed by delayed pneumonectomy at 5 months of age. No prosthetic substitute was implanted in the ipsilateral hemithorax after pneumonectomy. The patient is now 4 years old and doing well, postpneumonectomy syndrome was never observed. Our strategy and the possible alternatives are discussed here.

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Baroni, G., P. Deola, C. Alderighi, D. Peluso, U. Cucchini, and F. Chirillo. "P98 A CASE OF “RECURRENT” AORTIC VALVE STENOSIS." European Heart Journal Supplements 25, Supplement_D (May 2023): D78. http://dx.doi.org/10.1093/eurheartjsupp/suad111.183.

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Abstract Clinical Case A 80–year–old man underwent coronary angiography in 2006 because of stable angina. There was chronic total occlusion of middle left anterior descending artery requiring percutaneous intervention. In 2009 he underwent coronary angiography for recurrent angina: a severe stent restenosis was treated with stenting in stent (DES in BMS). The patient was subsequently asymptomatic till 2018 when he complained of exertional dyspnea and angina. Stent patency and severe aortic valve stenosis (AVA 0.85 cm2) were documented. The patient underwent successful transcatheter aortic valve implantation and discharged with dual antiplatelet therapy (DAPT) (Asa 100 mg and Clopidogrel 75 mg). Clinical and echocardiographic follow–up was unremarkable (mean prosthetic gradient 17 mmHg, DVI=0.45). In July 2021 during a cardiological check the patient complained of bruising: ASA was discontinued. In February 2022 the patient suffered from an exertional angina. A dipyridamole stress–echocardiography failed to demonstrate inducible ischemia, although the patient experienced angina at the peak load step. Transthoracic echocardiogram (TTE) revealed high mean trans–prosthetic aortic gradient (52 mmHg, DVI=0.18). A trans–esophageal echocardiogram (TEE) showed reduced mobility of the thickened left coronary and non–coronary aortic prosthetic leaflets. In the hypothesis of prosthetic valve thrombosis, warfarin (INR range 2–3) was started after stopping clopidogrel. After three months a TTE showed normalized mean trans–prosthetic gradients (17 mmHg, DVI=0.5). When a 6 month–period of anticoagulant therapy was accomplished, warfarin was stopped and DAPT administered again. In September 2022 the patient complained of worsening dyspnea and chest pain on exertion. At TTE mean trans–prosthetic gradients (46 mmHg) was increased. A new TEE showed thickening of non–coronary and right coronary leaflets, suggestive of recurrent valve thrombosis. After stopping DAPT, warfarin was started again with good result (mean prosthetic gradient 12 mmHg, DVI=0.5). Conclusion Thrombosis of aortic valve prothesis is an infrequent event usually occurring in early post–implantation period. In our case it occurred four years after implantation following DAPT interruption. The likely initial prosthetic valve degeneration together with a simplification of DAPT may have had a causative role. Since the proved efficacy of warfarin and the limited experience of DOAC in this field, the patient was given warfarin sine die.

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Fernández-Esparrach, G., A. Gimeno-García, J. Ayuso, À. Ginès, and J. Bordas. "Vertebral prosthetic arthrodesis migration to the esophageal lumen: a rare cause of dysphagia." Endoscopy 39, S 1 (December 2007): E188. http://dx.doi.org/10.1055/s-2007-966102.

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van Vendeloo, Stefan, Kees Olthof, Jan Timmerman, and Adriaan Mostert. "Esophageal Rupture in a Child After Vertical Expandable Prosthetic Titanium Rib Expansion Thoracoplasty." Spine 36, no. 10 (May 2011): E669—E672. http://dx.doi.org/10.1097/brs.0b013e3181f92c1c.

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Granderath, Frank A. "Impact of Laparoscopic Nissen Fundoplication With Prosthetic Hiatal Closure on Esophageal Body Motility." Archives of Surgery 141, no. 7 (July 1, 2006): 625. http://dx.doi.org/10.1001/archsurg.141.7.625.

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McIntyre, A. S., D. L. Morris, R. L. Sloan, C. S. Robertson, J. Harrison, W. R. Burnham, and M. Atkinson. "Palliative therapy of malignant esophageal stricture with the bipolar tumor probe and prosthetic tube." Gastrointestinal Endoscopy 35, no. 6 (November 1989): 531–35. http://dx.doi.org/10.1016/s0016-5107(89)72905-9.

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Dutta, Sanjeev. "Prosthetic esophageal erosion after mesh hiatoplasty in a child, removed by transabdominal endogastric surgery." Journal of Pediatric Surgery 42, no. 1 (January 2007): 252–56. http://dx.doi.org/10.1016/j.jpedsurg.2006.09.043.

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Granderath, F. A., M. A. Carlson, J. K. Champion, A. Szold, N. Basso, R. Pointner, and C. T. Frantzides. "Prosthetic closure of the esophageal hiatus in large hiatal hernia repair and laparoscopic antireflux surgery." Surgical Endoscopy 20, no. 3 (January 19, 2006): 367–79. http://dx.doi.org/10.1007/s00464-005-0467-0.

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Shapiro, Barry M., Arnold Komisar, Carl Silver, and Berish Strauch. "Primary Reconstruction of Palatal Defects." Otolaryngology–Head and Neck Surgery 95, no. 5 (December 1986): 581–85. http://dx.doi.org/10.1177/019459988609500510.

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Removal of the soft palate can cause marked functional deficit in deglutition and phonation. Most commonly, treatment of this deformity with prosthetic obturation has been less than ideal. Numerous reconstructive techniques have met with only partial success, while deforming distant structures. We will present a technique of reconstruction of the soft palate by use of a superiorly based pharyngeal flap. It has been used successfully in five patients who underwent soft palatectomy for malignant disease. The flaps have been the full width of the pharynx and extended down to the esophageal inlet. Viability of the flap is excellent, and the donor site is allowed to heal by secondary intention. Excellent function has been achieved in all cases with no compromise of oncological principles.

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Tsutsumi, Osamu, Hitoshi Shimao, Ken Kadowaki, Makoto Isogaki, Yasuyuki Kato, Hiroyoshi Mieno, Yuzuru Sakakibara, and Yoshiki Hiki. "A Case of Esophageal Cancer Obtained a Longstanding Relief with 5 Months Placement of Prosthetic Tube." Progress of Digestive Endoscopy(1972) 42 (1993): 177–80. http://dx.doi.org/10.11641/pdensks.42.0_177.

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Over, Larry Michael. "Maxillofacial prosthetic rehabilitation for esophageal and laryngeal laxity due to the hypermobility syndrome: A clinical report." Journal of Prosthetic Dentistry 113, no. 6 (June 2015): 656–59. http://dx.doi.org/10.1016/j.prosdent.2015.01.005.

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Cocuzza, Salvatore, Antonino Maniaci, Calogero Grillo, Salvatore Ferlito, Giacomo Spinato, Salvatore Coco, Federico Merlino, et al. "Voice-Related Quality of Life in Post-Laryngectomy Rehabilitation: Tracheoesophageal Fistula’s Wellness." International Journal of Environmental Research and Public Health 17, no. 12 (June 26, 2020): 4605. http://dx.doi.org/10.3390/ijerph17124605.

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(1) Introduction: Laryngeal cancer is one of the most common types of cancer affecting the upper aerodigestive tract. Despite ensuring good oncological outcome in many locoregionally advanced cases, total laryngectomy is associated with relevant physical and psychological sequelae. Treatment through tracheo-esophageal speech, if promising, can lead to very variable outcomes. Not all laryngectomee patients with vocal prosthesis benefit from the same level of rehabilitation mainly due to the development of prosthetic or fistula related problems. The relating sequelae in some cases are even more decisive in the patient quality of life, having a higher impact than communicational or verbal skills. (2) Material and Methods: A retrospective study was conducted on 63 patients initially enrolled with a history of total laryngectomy and voice rehabilitation, treated at the University Hospital of Catania from 1 January 2010 to 31 December 2018. Quality of life (QoL) evaluation through validated self-administrated questionnaires was performed. (3) Results: The Voice-Related Quality of Life questionnaire revealed significantly better outcomes in both socio-emotional and functional domains of the tracheoesophageal patient group compared to the esophageal group (p = 0.01; p = 0.01, respectively), whereas in the Voice Handicap Index assessment, statistically significant scores were not achieved (p = 0.33). (4) Discussion: The significant differences reported through the V-RQOL and Voice Handicap Index scales in the presence of fistula related problems and device lifetime reduction when compared to the oesophageal speech group have demonstrated, as supported by the literature, a crucial role in the rehabilitative prognosis. (5) Conclusions: The criteria of low resistance to airflow, optimal tracheoesophageal retention, prolonged device life, simple patient maintenance, and comfortable outpatient surgery are the reference standard for obtaining good QoL results, especially over time. Furthermore, the correct phenotyping of the patient based on the main outcomes achieved at clinical follow-up guarantees the primary objective of the identification of a better quality of life.

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Bechvaya, G. T., D. I. Vasilevsky, A. M. Ahmatov, and V. V. Kovalik. "Principles of surgical treatment of recurrent hiatal hernias (review of literature)." Scientific Notes of the Pavlov University 26, no. 3 (February 4, 2020): 20–24. http://dx.doi.org/10.24884/1607-4181-2019-26-3-20-24.

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Recurrent hiatal hernia is the re-displacement of the abdominal organs into the chest after surgical treatment. Indications for repeated surgical interventions for this pathology are resistant to medical correction gastroesophageal reflux or anatomical disorders, bearing the risk of developing life-threatening conditions. The key task of revision interventions is to identify and address the causes of the failure of the primary operation. The main factors of the recurrence of hernias of this localization are the large size of the hiatal opening, the mechanical weakness of the legs of the diaphragm and the shortening of the esophagus. To increase the reliability of the esophageal aperture plasty in the surgical treatment of recurrent hiatal hernias, prosthetic materials are widely used. When the esophagus is shortened, it is possible to increase its length by creating a gastric stalk (gastroplasty) or fixing the stomach to the anterior abdominal wall (gastropexy). The disadvantage of both methods is the occurring functional impairment. An alternative approach is the formation of a fundoplication wrap in the chest with the closure of the esophageal opening only with its own tissues. To eliminate or prevent the development of gastroesophageal reflux, antireflux reconstruction is an essential component of operations for recurrent hiatal hernias. The option of fundoplication is selected in accordance with the contractility of the esophagus. With normokinesia, circular fundoplication was preferred, with impaired motor skills – free reconstructions.

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Guiraudon, Gerard M., Douglas L. Jones, Daniel Bainbridge, and Terence M. Peters. "Off-Pump Positioning of a Conventional Aortic Valve Prosthesis through the Left Ventricular Apex with the Universal Cardiac Introducer under Sole Ultrasound Guidance, in the Pig." Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery 4, no. 5 (September 2009): 269–77. http://dx.doi.org/10.1097/imi.0b013e3181bbe279.

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Objective To test an alternative to catheter and open-heart techniques, by documenting the feasibility of implanting an unmodified mechanical aortic valve (AoV) in the off pump, beating heart using the universal cardiac introducer (UCI) attached to the left ventricular (LV) apex. Methods In six pigs, the LV apex was exposed by a median sternotomy. The UCI was attached to the apex. A 12-mm punching tool (punch), introduced through the UCI, was used to create a cylindrical opening through the apex. Then, the AoV, secured to a holder, was introduced into the LV, using transesophageal echocardiographic, guided through the apical LV opening, navigated into the LV outflow tract, and positioned within the aortic annulus. Trans-esophageal echocardiographic guidance was useful for navigation and positioning by superimposing the aortic annulus and prosthetic ring while Doppler imaging verified preserved prosthetic function and absence of perivalvular leaks. The valve function and hemodynamics were observed before termination for macroscopic evaluation. Results The punch produced a clean opening without fragmentation or myocardial embolization. During advancement of the mechanical AoV, there were no arrhythmias, mitral valve dysfunctions, evidence of myocardial ischemia, or hemodynamic instability. The AoVs were well seated over the annulus, without obstructing the coronaries or contact with the conduction system. The ring of AoVs was well circumscribed by the aortic annulus. Conclusions This study documented the feasibility of positioning a mechanical AoV on the closed, beating heart. These results should encourage the development of adjunct technologies to deliver current tissue or mechanical AoV with minimal side effects.

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Meghnathi, Himanshu Harsukhgiri, and Hasit Joshi. "3D Transesophageal Echocardiography (TEE) in assessment of prosthetic heart valve obstruction in comparison of 2D Trans Esophageal echocardiography (TEE)." Indian Heart Journal 70 (November 2018): S15. http://dx.doi.org/10.1016/j.ihj.2018.10.039.

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Ghanem, Omar, Courtney Doyle, Raul Sebastian, and Adrian Park. "New Surgical Approach for Giant Paraesophageal Hernia Repair: Closure of the Esophageal Hiatus Anteriorly Using the Left Triangular Ligament." Digestive Surgery 32, no. 2 (2015): 124–28. http://dx.doi.org/10.1159/000375131.

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Background: Obtaining a tension-free repair for giant paraesophageal hernias (PEH) is often challenging. Many different techniques have been proposed, including laparoscopic posterior hiatoplasty with the use of prosthetic or biologic mesh as well as the use of autologous teres or falciform ligament flaps. In this report, we describe the use of the left triangular ligament as an onlay autologous vascularized flap to bridge the anterior residual defect after posterior cruroplasty. Methods: A novel technique of paraesophageal hiatal hernia repair is described. Posterior hiatoplasty is performed, including the approximation of the diaphragmatic crural fibers to the extent possible. The left triangular ligament is then mobilized and sutured to the right and left crural fibers lining the esophageal hiatus to seal the anterior residual diaphragmatic defect. Results: This technique has been performed in 4 patients with a mean age of 71 years and a 3:1 female to male ratio. The average hiatal defect size was 5.5 cm and the average length of operation was 122 min. There was no evidence of radiologic or clinical recurrence on follow-up. Conclusion: The use of the left triangular ligament flap is feasible and may be a valuable tool for closure of an anterior diaphragmatic defect in giant PEHs. Additional studies to validate its long-term function are needed.

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Rosenfeld, I. I., D. L. Chilikina, S. R. Ivanov, V. A. Tsypnyatov, and S. V. Ershova. "A review of modern methods for operative treatment of diaphragmatic hernias." Siberian Medical Review, no. 3 (2021): 44–49. http://dx.doi.org/10.20333/25000136-2021-3-44-49.

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Hiatal hernia amounts to 90% of all diaphragmatic hernias. According to data obtained from large-scale epidemiological studies in Europe and the USA, esophageal hernias may be revealed in 30-40% of the population, 15% among which require surgical treatment. The occurrence rate equals 91% for small hernias, 6% for large hernias and 3% for giant hernias. The article presents a review of literature dated 2011-2020 and devoted to results of operative treatment of hiatal hernia of different sizes. The search for the publications was performed in the following databases: Web of Science, Scopus, PubMed, e-library, Ulrich's Periodicals Directory, Google Scholar and AGRIS. There is a large number of methods for surgical correction of diaphragmatic hernia. However, strict indications to their application have not been developed to the date. Alloplasty provides for improvement of the clinical picture and of the patients’ quality of life, but bears quite a high risk of recurrence. To this day, treatment of hiatal hernia frequently involves application of various prosthetic materials with their certain advantages and disadvantages. Therefore, the search for optimal surgical methods for treatment of diaphragmatic hernias of different sizes continues and requires further investigation.

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Zhang, Zhe, Xueming Chen, Chenyu Li, Hai Feng, Hongzhi Yu, Renming Zhu, and Tianyou Wang. "Foam sclerotherapy during shunt surgery for portal hypertension and varices." Open Medicine 12, no. 1 (November 22, 2017): 384–90. http://dx.doi.org/10.1515/med-2017-0055.

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AbstractObjectiveThis preliminary study investigated the clinical safety and efficacy of foam sclerotherapy during shunt surgery to treat portal hypertension and gastroesophageal varices.MethodsSeven patients with confirmed portal hypertension and a variceal bleeding history underwent mesocaval shunt with simultaneous polidocanol foam injection into the varices. Computed tomography and endoscopic reviews were conducted within two weeks following the procedures and around six months later.ResultsSix patients underwent side-to-side mesocaval shunt. One received a prosthetic mesocaval shunt. Polidocanol foam was injected into the gastric varices or the inferior mesenteric vein during the surgery. Surgical success and survival was achieved in all patients. Gastric ulcer formation and thrombocytopenia occurred in one patient respectively, which were ameliorated by conservative treatment. During 12 to 24 months’ follow-up, three patients had obvious decrease or eradication of gastroesophageal varices; four patients had obvious decrease of gastric varices but residual esophageal varices; and all patents had unobstructed shunts. Encephalopathy occurred in one patient two months postoperatively. No sclerosant-related complications were observed and no postoperative recurrent variceal bleeding occurred.ConclusionsFoam sclerotherapy during shunt surgery is safe and effective for portal hypertension and varices treatment.

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Bechvaya, Georgiy T., Dmitriy I. Vasilevsky, Akhmat M. Akhmatov, and Vladislav V. Kovalik. "Poor results of surgical treatment of hiatal hernias. Is there a solution to the problem?" HERALD of North-Western State Medical University named after I.I. Mechnikov 11, no. 4 (March 27, 2020): 5–10. http://dx.doi.org/10.17816/mechnikov20191145-10.

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Hiatal hernias are the most common violation of visceral anatomy. Indications for surgical treatment of this pathology include refractory gastroesophageal reflux or anatomical changes, which carry a risk of developing life-threatening conditions. An unresolved problem in this area of surgery is the high recurrence rate of the disease, reaching 1040%. Subjective causes of unsatisfactory results are technical errors in performing interventions and violations of perioperative management. Compliance with the methodology of operations and the rules of patient management can minimize this group of factors. Large size of the hiatal opening, mechanical weakness of diaphragm crura and shortening of the esophagus are considered to be objective causes for the recurrent disease. An effective way to increase the reliability of the plastic esophageal opening of the diaphragm is the use of prosthetic materials. When the esophagus is shortened, it is possible to increase its length with the stomach (gastroplasty) or with the formation of a fundoplication wrap in the chest. Another option to increase the reliability of the operation may be fixing the stomach to the anterior abdominal wall (gastropexia) to prevent its redeployment to the chest. The use of this arsenal of techniques allows to reduce the frequency of unsatisfactory results after surgical treatment of hiatal hernias by up to 510%.

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Balla, Andrea, Silvia Quaresima, Pietro Ursi, Ardit Seitaj, Livia Palmieri, Danilo Badiali, and Alessandro M. Paganini. "Hiatoplasty with Crura Buttressing versus Hiatoplasty Alone during Laparoscopic Sleeve Gastrectomy." Gastroenterology Research and Practice 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/6565403.

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Introduction. In obese patients with hiatal hernia (HH), laparoscopic sleeve gastrectomy (LSG) with cruroplasty is an option but use of prosthetic mesh crura reinforcement is debated. The aim was to compare the results of hiatal closure with or without mesh buttressing during LSG. Methods. Gastroesophageal reflux disease (GERD) was assessed by the Health-Related Quality of Life (GERD-HRQL) questionnaire before and after surgery in two consecutive series of patients with esophageal hiatus ≤ 4 cm2. After LSG, patients in group A (12) underwent simple cruroplasty, whereas in group B patients (17), absorbable mesh crura buttressing was added. Results. At mean follow-up of 33.2 and 18.1 months for groups A and B, respectively (p=0.006), the mean preoperative GERD-HRQL scores of 16.5 and 17.7 (p=0.837) postoperatively became 9.5 and 2.4 (p=0.071). In group A, there was no difference between pre- and postoperative scores (p=0.279), whereas in group B, a highly significant difference was observed (p=0.002). The difference (Δ) comparing pre- and postoperative mean scores between the two groups was significantly in favor of mesh placement (p=0.0058). Conclusions. In obese patients with HH and mild-moderate GERD, reflux symptoms are significantly improved at medium term follow-up after cruroplasty with versus without crura buttressing during LSG.

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Lorenz, Kai J., Laura Grieser, Theresa Ehrhart, and Heinz Maier. "Role of Reflux in Tracheoesophageal Fistula Problems after Laryngectomy." Annals of Otology, Rhinology & Laryngology 119, no. 11 (November 2010): 719–28. http://dx.doi.org/10.1177/000348941011901114.

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Objectives The purpose of this 2-year prospective nonrandomized study was to investigate the relationship between pathological supraesophageal reflux and the occurrence of speech fistula complications, especially severe fistula enlargement, in patients who underwent total laryngectomy and prosthetic voice restoration. Methods We objectively assessed the presence of reflux disease using 24-hour dual-probe pH monitoring in 60 laryngectomized patients, correlated the incidence of tracheoesophageal fistula complications with the severity of reflux, and assessed the risk of problems by determining the absolute number of reflux events at the level of the speech fistula, the reflux area index score, and the DeMeester score. Results All patients with fistula enlargement showed highly pathological results in the diagnostic tests for reflux disease. Depending on reflux severity, the relative risk of developing fistula complications was up to 10 times higher for these patients. Conclusions We found a significant correlation between the occurrence of tracheoesophageal fistula complications and the severity of supraesophageal reflux. Potential chronic irritation of the esophageal and tracheal mucosa can possibly contribute to the development of these problems. If the presence of reflux disease has been confirmed by 24-hour dual-probe pH monitoring, patients with fistula complications should be treated with proton pump inhibitors.

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Martinelo, Vanderlei, Fernando Augusto Mardiros Herbella, and Marco G. Patti. "High-resolution Manometry Findings in Patients with an Intrathoracic Stomach." American Surgeon 81, no. 4 (April 2015): 354–57. http://dx.doi.org/10.1177/000313481508100424.

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Intrathoracic stomach is a rare finding. The real value of the high-resolution manometry (HRM) in the preoperative evaluation of these patients has not yet being fully tested. This study aims to evaluate: 1) the HRM pattern of patients with an intrathoracic stomach; and 2) HRM findings as predictors for prosthetic reinforcement of the hiatus. We reviewed 33 patients (27 women, mean age 66 years) with an intrathoracic stomach who underwent HRM. Fifteen patients did the HRM as part of preoperative workup and were operated on in our institution. All patients were submitted to a laparoscopic Nissen fundoplication. HRM results show that the lower esophageal sphincter (LES) was transposed in all patients. Hiatal hernia was diagnosed in 21 (63%) patients. The length of the hernia was 4 ± 2 cm (range, 1 to 9 cm). LES oscillation was observed in 23 (69%) patients with a mean of 1 ± 0.4 cm (range, 0.4 to 2 cm). Hiatal mesh reinforcement was necessary in five (33%) of the operated patients. HRM findings did not predict hiatal mesh reinforcement. Our results show that: 1) HRM has a poor sensibility for hiatal hernia diagnosis; 2) half of the patients with an intrathoracic stomach have a normal HRM; and 3) HRM does not predict mesh hiatal hernia repair.

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Vishal, Rao, Anil K. D'Cruz, Mandar Deshpande, Devendra Chaukar, and Prathamesh Pai. "Clinical Localization of the Spasmodic Segment in Voice Limiting Pharyngoesophageal Spasm." International Journal of Head and Neck Surgery 1, no. 3 (2010): 189–92. http://dx.doi.org/10.5005/jp-journals-10001-1038.

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Abstract Background Primary tracheoesophageal prosthetic speech is the gold standard for speech rehabilitation in patients undergoing total laryngectomy. However, despite a high success rate, the speech outcome can be suboptimal in 5-15% of these patients. The most frequent cause being hypertonicity of the pharyngoesophageal segment. We elaborate a simple clinical technique that can be performed in an outpatient clinic to identify the hypertonic pharyngoesophageal segment in patients with PES. Methods All these patients (13 males and 1 female) had undergone total laryngectomy and primary tracheoesophageal puncture followed by postoperative radiotherapy. Even after rigorous speech therapy, these patients had failed to develop fluent speech. The mean duration following surgery was 8 months (range 4-20 months). A simple clinical technique is elaborated utilizing the dermal ballooning effect observed in the cervical region to ascertain the site of pharyngo esophageal spasmodic segment. Results Using this technique we have been able to identify the hypertonic segment successfully in 13 of the 14 patients with PES. In these patients the trial lignocaine block was injected specifically at these points medial to the carotid vessels. Improvement in speech following the block was observed, and was further confirming using a videofluroscopy. Conclusion This technique serves as a simple and useful clinical tool to map the spasmodic segment and to guide the injection site for trial lignocaine block and as well for botulinum a toxin. In addition, it also prevents inadvertent injection to the normal segments.

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Masuda, Takahiro, and Sumeet Mittal. "PS01.076: LAPAROSCOPIC REMOVAL OF A SLIPPED ANGELCHIK ANTIREFLUX PROSTHESIS." Diseases of the Esophagus 31, Supplement_1 (September 1, 2018): 70–71. http://dx.doi.org/10.1093/dote/doy089.ps01.076.

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Abstract Background The Angelchik prosthesis is c-shaped silicone ring designed to prevent acid reflux. The device, which is fitted around the gastroesophageal junction, was popular in 1980s and over 25,000 devices were placed in patients worldwide. However, follow-up showed a high frequency of undesirable results, including device migration and esophageal erosion. The use of this device was therefore abandoned in the early 1990s. Methods A 70-year-old man with a body mass index of 36 kg/m2 presented to us with persistent dysphagia and progressively increasing heartburn. He had undergone placement of an Angelchik prosthesis 37 years earlier. He said that he had experienced dysphagia since it was implanted, but had accepted it. His past medical history included hypertension, hyperlipidemia, sleep apnea, atrial fibrillation, cerebrovascular accident, and benign prostatic hypertrophy. Upper gastrointestinal endoscopy, contrast esophagram, and high-resolution manometry showed a slipped Angelchik device on the stomach with moderately impaired esophageal body motility. Results The patient underwent laparoscopic removal of the Angelchik prosthesis, followed by a Roux-en-Y gastric bypass for antireflux. After laparoscopic access, adhesions from previous laparotomy were taken down and standard laparoscopic foregut surgery ports were placed. A fibrous calcified capsule encircling the Angelchik prosthesis was noted around the proximal stomach. The anterior wall of the capsule was peeled off using a Harmonic scalpel, and the Angelchik prosthesis was removed in one piece. Given the patient's esophageal dysmotility and scarring around the fundus, we proceeded with Roux-en-Y gastric bypass. The alimentary and biliary limbs were tailored to 80 cm and 30 cm in length, respectively. Using linear staplers, the gastric pouch was created by dividing the proximal stomach just below the level of the scarred tissue created by the Angelchik device. The distal stomach was left in situ. The operation lasted 160 minutes, and the intraoperative blood loss was 150 mL. Barium swallow on postoperative day 1 showed no leakage, and a liquid diet was initiated. The patient was discharged on postoperative day 2. The patient now reports resolved dysphagia and reflux. Conclusion Laparoscopic removal of the Angelchik prosthesis and Roux-en-Y gastric bypass was performed safely with good outcomes. Disclosure All authors have declared no conflicts of interest.

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Best, Larry. "ULTRAFLEX Esophageal Prosthesis." Gastroenterology Nursing 18, no. 2 (March 1995): 81. http://dx.doi.org/10.1097/00001610-199503000-00019.

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Malciolu, Stefan Cristian, Ana Veja, and George Sebastian Gherlan. "An unexpected case of Coxiella burnetii endocarditis." Romanian Journal of Infectious Diseases 26, no. 1 (March 31, 2023): 33–37. http://dx.doi.org/10.37897/rjid.2023.1.5.

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Introduction. Coxiella burnetii is the causative agent of Q fever, a zoonosis that is usually associated with cattle, sheep, goats and their bodily fluids, mainly milk or amniotic fluid. The disease manifests most commonly as an upper respiratory tract infection or pneumonia, but, in less common cases can lead to endocarditis, hepatitis, meningo-encephalitis and osteomyelitis. In the acute stage, patients usually have a self-limited febrile illness, which can progress to the chronic form of Q fever, most commonly with endocarditis. Endocarditis is the main manifestation of chronic Q fever and it usually affects patients with risk factors, such as prosthetic valves, abnormal native valves or other cardiac disease history, but it can also be seen in patients with no prior medical history, like the one we describe. The diagnosis is confirmed using the same Duke Criteria used in infectious endocarditis, with one major criterion being either a positive blood culture or PCR for C. burnetii, or a positive IgG phase I serological test [>1:6400). The preferred treatment regimen is doxycycline plus hydroxychloroquine, maintained for a minimum of 18 months, along with regular follow-ups for serology testing and side-effects evaluation. Case presentation. We describe the case of a 53-year old male with no medical history who presented in our clinic for a 2-week evolution of fever, chills and weight loss. The physical examination revealed no pathological findings. The trans-esophageal cardiac echography showed small vegetations on the mitral valve and the serological test for Coxiella burnetii was positive, thus allowing us to confirm the diagnosis of Coxiella burnetii endocarditis and start treatment with Doxycycline and Hydroxychloroquine. Conclusions. Coxiella burnetii must be taken into account as a possible diagnosis for culture-negative endocarditis, even in patients with no cardiological medical history and no environmental risk factors.

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Costa, Claudiney C., Marcio Abrahão, Onivaldo Cervantes, and José F. S. Chagas. "New Endoscopic Secondary Tracheoesophageal Voice Prosthesis Placement Technique." Otolaryngology–Head and Neck Surgery 128, no. 5 (May 2003): 686–90. http://dx.doi.org/10.1016/s0194-59980300196-7.

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OBJECTIVE: The aim of this study was to present a new technique of secondary vocal prosthesis placement on an outpatient basis without general anesthesia by means of digestive endoscopy. METHODS: It is a prospective study, 35 laryngectomized patients were sedated with midazolam and underwent digestive endoscopy and tracheoesophageal punch with vocal prosthesis insertion. RESULTS: A success rate of 94.2% was achieved with this surgical technique. The mean procedure time was estimated at 12 minutes, and no serious complications due to the prosthesis insertion were observed. CONCLUSION: The advantages of this new technique over the classic technique are lack of use of general anesthesia, performance of procedure on an outpatient basis, lower complication risks (including hemorrhage, mediastinitis, vertebral fracture, esophageal perforation; and minor oropharyngeal, and esophageal mucosal trauma), and direct visualization of the prosthesis in the esophageal lumen.

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Shike, Moshe, Saul Miodownik, Paula Pantason, Thomas D. Schiano, and Lee Salk. "An active esophageal prosthesis." Gastrointestinal Endoscopy 41, no. 1 (January 1995): 64–67. http://dx.doi.org/10.1016/s0016-5107(95)70278-4.

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Zanchetta, Matteo, Elisa Monti, Lorenzo Latham, Jessica Costa, Alessandro Marzorati, Murad Odeh, Elisabetta Marta Colombo, et al. "Dental Prosthesis in Esophagus: A Right Cervicotomic Approach." Life 12, no. 8 (July 31, 2022): 1170. http://dx.doi.org/10.3390/life12081170.

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Foreign body ingestion in the upper digestive tract is a relatively common emergency. Less than 1% have to be treated surgically. We report the case of a 68-year-old man who ingested a dental prosthesis, probably during a seizure, and thus unknowingly, and presented two days later to the emergency department complaining of a mild dysphagia. A chest radiograph showed the presence of a removable dental prosthesis in the upper esophageal tract. The patient was brought to the operating room where a multidisciplinary equipe was assembled. Two attempts of retrieval with a flexible and a rigid endoscope failed because the removable dental prosthesis was stuck in the right pyriform sinus. Therefore, the surgeon performed an uncommon right cervicotomy and retrieved the foreign body through a right-side esophagotomy. The surgical approach depends on the nature and location of the foreign body. Urgent treatment is required whenever the patient develops dyspnea or dysphagia because of the high risk of inhalation and asphyxia. Removal of any esophageal foreign body has to be performed within 12–24 h. Repeated attempts to retrieve large dental prosthesis using an endoscope may result in esophageal perforation therefore when such risk of complication is too high, a surgical approach becomes inevitable. In our opinion, surgery remains the extrema ratio after a failed endoscopic retrieval attempt but can be lifesaving despite high risk of complications.

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Aguiar-Ricz, Lílian, Hilton Ricz, Francisco Veríssimo De Mello-Filho, Gleici Castro Perdoná, and Roberto Oliveira Dantas. "Intraluminal Esophageal Pressures in Speaking Laryngectomees." Annals of Otology, Rhinology & Laryngology 119, no. 11 (November 2010): 729–35. http://dx.doi.org/10.1177/000348941011901115.

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Objectives The objective of the present study was to evaluate intraluminal esophageal pressure during voice and speech emission in speaking laryngectomees with a tracheoesophageal prosthesis. Methods In our prospective analysis in a tertiary-care academic hospital, 25 laryngectomees were divided into 2 groups: 11 speaking individuals with a tracheoesophageal prosthesis and a control group of 14 nonspeaking laryngectomees. All patients were subjected to manometry during voice and speech emission tests. We determined the pressures achieved in the distal, middle, and proximal parts of the esophagus. Results Statistical analysis revealed that the amplitude of pressure in the distal esophagus during sound emission was higher in speaking laryngectomees; in the middle esophagus, intraluminal pressure during emission of the sentence was higher in speaking subjects, and in the proximal esophagus there was no difference between the groups. Conclusions During the manometric evaluation of the distal and middle esophagus in the presence of voice and speech emission, the intraluminal pressure revealed a significant difference for the speaking laryngectomees with a tracheoesophageal prosthesis. The proximal esophagus behaved similarly in the groups of speakers and nonspeakers. Speaking laryngectomees with a tracheoesophageal prosthesis depend on a differentiated performance of the middle and distal parts of the esophagus.

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Parker, Charles H., and David A. Peura. "Palliative Treatment of Esophageal Carcinoma Using Esophageal Dilation and Prosthesis." Gastroenterology Clinics of North America 20, no. 4 (December 1991): 717–29. http://dx.doi.org/10.1016/s0889-8553(21)00584-7.

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Yekrang, Javad, Dariush Semnani, and Saeed Karbasi. "Optimizing the mechanical properties of a bi-layered knitted/nanofibrous esophageal prosthesis using artificial intelligence." e-Polymers 16, no. 5 (September 1, 2016): 359–71. http://dx.doi.org/10.1515/epoly-2016-0146.

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AbstractThe esophagus is a tubular multi-layer organ that carries the food bolus and liquids from the mouth to the stomach. Esophageal prostheses and scaffolds should have the appropriate mechanical and strain properties in the longitudinal and circumferential directions. A novel bi-layered esophageal prosthesis was produced using knitted tubular silk fabric and a coating of polyurethane (PU) nanofibers. The optimization process was performed in two steps. First, 12 different tubular structures of knitted silk fabrics were produced and mechanical properties were measured in both directions. The mechanical properties were optimized using an artificial neural network (ANN) and a genetic algorithm (GA) and the optimum knitted structure was produced as a substrate for coating with PU nanofibers. In second step, 20 different samples were produced by electrospinning the PU nanofibers at different process conditions (collector speed, feeding rate) on the optimized structure of the knitted fabric. Finally, the elastic properties of the bi-layered tubular structures were measured and optimized by the ANN and GA methods. Results presented show that the optimized structure of the esophageal prosthesis had proper mechanical properties similar to the esophagus. Such a structure can be used as a substitute in esophageal disorders.

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Brückner, M., H. Grimm, V. Ch Nam, and N. Soehendra. "Transnasal Fixation of the Esophageal Prosthesis." Endoscopy 20, no. 06 (November 1988): 313–15. http://dx.doi.org/10.1055/s-2007-1018204.

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Neuhaus, Horst. "Esophageal therapeutic endoscopy, laser, and prosthesis." Current Opinion in Gastroenterology 10, no. 4 (July 1994): B125. http://dx.doi.org/10.1097/00001574-199407000-00016.

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Tytgat, G. N. J., F. C. A. den Hartog Jager, and J. F. W. M. Bartelsman. "Endoscopic Prosthesis for Advanced Esophageal Cancer." Endoscopy 18, S 3 (September 1986): 32–39. http://dx.doi.org/10.1055/s-2007-1018439.

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Afridi, Faryal G., Morgan Johnson, Kelsey A. Musgrove, Salim Abunnaja, Lawrence E. Tabone, David C. Borgstrom, and Nova Szoka. "Laparoscopic Removal of Angelchik Prosthesis Followed by Interval Sleeve Gastrectomy." Case Reports in Surgery 2019 (May 21, 2019): 1–3. http://dx.doi.org/10.1155/2019/2479267.

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Introduction. The Angelchik prosthesis (AP) is a historic antireflux device which consists of a C-shaped silicone ring placed around the gastroesophageal junction (GEJ) and secured by Dacron tape. We present a rare experience with an AP and its impact on bariatric surgical outcomes. Case. Our patient is a 66-year-old woman who had an open antireflux procedure with an AP in 1987. She presented to a bariatric clinic for consideration of bariatric surgery for the treatment of morbid obesity and associated comorbidities. She also reported significant problems with reflux and dysphagia. After an appropriate work-up, an AP was identified at her GEJ. She was taken to the operating room for laparoscopic removal with planned interval laparoscopic sleeve gastrectomy. Intraoperatively, the AP was identified around the GEJ; after extensive adhesiolysis, the prosthesis was removed. Postoperatively, in order to determine if the AP had caused any lasting esophageal motility problems, the patient underwent a high-resolution esophageal manometry which demonstrated normal esophageal motility. Interval laparoscopic sleeve gastrectomy was performed safely 9 weeks later. Conclusion. Although rarely used, it is still possible to encounter an Angelchik prosthesis in practice. General and bariatric surgeons need to be aware of this rare device and understand how to manage its related complications.

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Arias, Mariano Rosique, JosÉ Luis RamÓN, Matilde Campos, and Juan JimÉNez Cervantes. "Acoustic analysis of the voice in phonatory fistuloplasty after total laryngectomy." Otolaryngology–Head and Neck Surgery 122, no. 5 (May 2000): 743–47. http://dx.doi.org/10.1067/mhn.2000.98359.

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A comparative study of the voice with sustained phonation of the vowel /a/ was made in 3 groups of male patients: (1) 20 patients receiving total laryngectomy for epidermoid carcinoma of the larynx who had acquired good voice quality after a phonatory fistuloplasty with a Herrmann voice prosthesis; (2) 20 patients undergoing total laryngectomy for epidermoid carcinoma of the larynx who had learned esophageal speech; and (3) 20 subjects with normal voices. Statistical analysis yielded significant differences in fundamental voice frequency between the 3 groups, with the patients with phonatory prostheses revealing the closest to a normal voice. For other parameters used, such as jitter, shimmer, and harmonics/noise ratio, voice quality with a phonatory prosthesis was similar to that obtained with esophageal speech.

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Arias, Mariano Rosique, José Luis Ramón, Matilde Campos, and Juan Jiménez Cervantes. "Acoustic Analysis of the Voice in Phonatory Fistuloplasty after Total Laryngectomy." Otolaryngology–Head and Neck Surgery 122, no. 5 (May 2000): 743–47. http://dx.doi.org/10.1016/s0194-5998(00)70208-7.

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A comparative study of the voice with sustained phonation of the vowel /a/ was made in 3 groups of male patients: (1) 20 patients receiving total laryngectomy for epidermoid carcinoma of the larynx who had acquired good voice quality after a phonatory fistuloplasty with a Herrmann voice prosthesis; (2) 20 patients undergoing total laryngectomy for epidermoid carcinoma of the larynx who had learned esophageal speech; and (3) 20 subjects with normal voices. Statistical analysis yielded significant differences in fundamental voice frequency between the 3 groups, with the patients with phonatory prostheses revealing the closest to a normal voice. For other parameters used, such as jitter, shimmer, and harmonics/noise ratio, voice quality with a phonatory prosthesis was similar to that obtained with esophageal speech.

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Annakkaya, Ali Nihat, Ege Gulec Balbay, Mete Erbas, and Ozcan Yildiz. "An Unusual Aspiration: Tracheo-esophageal Voice prosthesis." Respiratory Case Reports 1, no. 2 (2012): 65–69. http://dx.doi.org/10.5505/respircase.2012.76486.

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Rodrigues Brito, Telma, and Alberto Midões. "Esophageal perforation caused by a dental prosthesis." International Journal of Case Reports and Images 10 (2019): 1. http://dx.doi.org/10.5348/101057z01tb2019cr.

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Wolfsen, Herbert C., and Richard A. Kozarek. "Esophageal therapeutic endoscopy, laser photocoagulation, and prosthesis." Current Opinion in Gastroenterology 11, no. 4 (July 1995): 351–58. http://dx.doi.org/10.1097/00001574-199507000-00012.

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Journal articles on the topic 'Prosthetic esophageal'

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