Relevant bibliographies by topics / Stents (Surgery)

Academic literature on the topic 'Stents (Surgery)'

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Published: 4 June 2021
Last updated: 26 July 2024

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Journal articles on the topic "Stents (Surgery)"

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Abreo, Kenneth, and Adrian Sequeira. "Role of stents in hemodialysis vascular access." Journal of Vascular Access 19, no. 4 (March 12, 2018): 341–45. http://dx.doi.org/10.1177/1129729818761280.

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Stents are ubiquitously utilized in coronary and peripheral arterial disease. Interventional nephrologists, however, place stents in the venous outflow of the arteriovenous access. Stenosis is the predominant pathology that causes access dysfunction and will ultimately lead to thrombosis if uncorrected. Angioplasty and stent deployment are the current techniques available to combat stenosis. From initial bare metal stainless steel stents, the current generations of stents used are predominately covered nitinol stents. The latest randomized control trials reveal that stents decrease the number of interventions required to maintain patency but do not improve the overall access survival. Furthermore, bare metal stents have been shown to be inferior to stent grafts. This review discusses indications for stent deployment in the hemodialysis access, the current evidence for their use, and briefly touches on their complications.
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Tang, Vincent CY, John Gillooly, Elaine WY Lee, and Clive R. Charig. "Ureteric Stent Card Register – A 5-Year Retrospective Analysis." Annals of The Royal College of Surgeons of England 90, no. 2 (March 2008): 156–59. http://dx.doi.org/10.1308/003588408x242123.

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INTRODUCTION Ureteric stenting is a common urological procedure. Forgotten stents have a well-documented morbidity and mortality. Therefore, we asked the question, is a stent register an important factor in reducing the number of lost or overdue stents? PATIENTS AND METHODS We conducted a retrospective review of 203 patients who had ureteric stents inserted in the operating theatre, for the 5-year period 1 December 1998 to 1 December 2003. We analysed all stent cards, patient notes and theatre logs; where no record of stent removal was found, we contacted the patient, their GP or their local hospital. RESULTS A total of 191 patients were identified from the stent card register. An additional 12 patients were found from the theatre logs, but with no record in the stent card register. Of the 203 patients, 8 had bilateral stents. The most common indication for stenting was stone disease. Of the 203 patients, 11 had overdue stents and 51 had no record of the stents ever being removed. The 51 presumed ‘forgotten’ stents were traced, and it was found that 42 patients had had their stents removed by other hospitals, and 9 patients died with stents in situ, but before they were due for removal. CONCLUSIONS Our current stent card tracking system is ineffective, because it was infrequently reviewed. However, despite overdue and ‘forgotten’ stents which were removed by other hospitals, no patients came to any real harm and we had no lost stents. Our stent register system did not appear to play any role in terms of preventing stent loss, and it seems likely that there are other more effective safeguards in place to prevent this from happening. However, if a stent register was required at all, a computerised system would be preferable. Alternatively, patients could share some of the responsibility of stent tracking with their clinicians.
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Tammareddi, Sriram, and Qing Li. "Effects of Material on the Deployment of Coronary Stents." Advanced Materials Research 123-125 (August 2010): 315–18. http://dx.doi.org/10.4028/www.scientific.net/amr.123-125.315.

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Coronary stents have been more and more widely used in clinic over the past decade. There have been a large number of stents made of different biocompatible materials available commercially in the market. It is however unclear which is more suitable to specific patients. This raises a major concern whether the choice of stents could be assessed before a delivery surgery. This paper aims to provide a computational approach for evaluating the effect of stent materials on biomechanical outcomes of the deployments of stents in different patient. It will review the typical biomaterials being used for coronary stents, seeking to qualitatively assess them for use as coronary stents. Non-linear explicit finite element (FE) procedure is carried out using the Palmaz-Schatz stent geometry to quantitatively predict the effect of mechanical properties of these biomaterials on stent and coronary artery behavior during stent deployment. A quantitative comparison is made for exploring the effect of different materials on the deployment of stents. The study is considered significant in understanding the role how stent materials affect biomechanical responses to the coronary stenting. It provides a new methodology to promote a patient-specific assessment before surgery.
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Canakcı, Cengiz, Erdinç Dinçer, Mehmet Burak Doğrusever, Mahmut Selman Mert, and Orkunt Özkaptan. "Approach to Forgotten Ureteral Stents: A Single Tertiary Center Experience of 49 Cases." Endouroloji Bulteni 16, no. 2 (May 20, 2024): 58–63. http://dx.doi.org/10.54233/endourolbull-1442984.

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Objective: Double J (DJ) stents are widely used in urology practice. Forgotten ureteral stents can cause serious complications. We present our experience about forgotten ureteral stents with 49 cases. Material and Methods: The data of patients who were operated due to forgotten encrusted ureteral stents were examined retrospectively. Age, gender, side, presenting complaint, indwelling time, stent indication, surgery performed, complications, additional interventions and stone-free status were evaluated. For descriptive statistics, the mean, standard deviation, minimum and maximum frequencies and percentages were used. Results: Nineteen (38.8%) patients were female and 30 (61.2%) patients were male. The mean age of the patients was 47,06±14,11 (18-79). The mean indwelling time was 16.2±21,1 (3-120). Stents were placed in 30 patients due to stone surgery, 9 patients due to prophylactic before oncologic surgery, 8 patients due to hydronephrosis and two patients due to ureteral injury. For the treatment of the forgotten stent, ureteroscopy (including flexible ureterorenoscopy) was performed in 26 patients, endoscopic combined treatment in 11 patients, cystolithotripsy in 9 patients, open surgery in two patients and percutaneous nephrolithotomy in one patient. Conclusion: Removal of forgotten impacted ureteral stents can cause serious complications. The patients who were placed stents should be informed about the complications associated with forgotten encrusted stents.
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Canakcı, Cengiz, Erdinç Dinçer, Mehmet Burak Doğrusever, Mahmut Selman Mert, and Orkunt Özkaptan. "Approach to Forgotten Ureteral Stents: A Single Tertiary Center Experience of 49 Cases." Endouroloji Bulteni 16, no. 2 (May 20, 2024): 58–63. http://dx.doi.org/10.54233/10.54233/endourolbull-1442984.

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Objective: Double J (DJ) stents are widely used in urology practice. Forgotten ureteral stents can cause serious complications. We present our experience about forgotten ureteral stents with 49 cases. Material and Methods: The data of patients who were operated due to forgotten encrusted ureteral stents were examined retrospectively. Age, gender, side, presenting complaint, indwelling time, stent indication, surgery performed, complications, additional interventions and stone-free status were evaluated. For descriptive statistics, the mean, standard deviation, minimum and maximum frequencies and percentages were used. Results: Nineteen (38.8%) patients were female and 30 (61.2%) patients were male. The mean age of the patients was 47,06±14,11 (18-79). The mean indwelling time was 16.2±21,1 (3-120). Stents were placed in 30 patients due to stone surgery, 9 patients due to prophylactic before oncologic surgery, 8 patients due to hydronephrosis and two patients due to ureteral injury. For the treatment of the forgotten stent, ureteroscopy (including flexible ureterorenoscopy) was performed in 26 patients, endoscopic combined treatment in 11 patients, cystolithotripsy in 9 patients, open surgery in two patients and percutaneous nephrolithotomy in one patient. Conclusion: Removal of forgotten impacted ureteral stents can cause serious complications. The patients who were placed stents should be informed about the complications associated with forgotten encrusted stents.
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Singer, Jordan L., Amir H. Aryaie, Mojtaba Fayezizadeh, Jon Lash, and Jeffrey M. Marks. "Predictive Factors for the Migration of Endoscopic Self-Expanding Metal Stents Placed in the Foregut." Surgical Innovation 24, no. 4 (April 6, 2017): 353–57. http://dx.doi.org/10.1177/1553350617702026.

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Background. With recent advancements in endoscopy, self-expandable metal stents (SEMS) have been used to treat gastrointestinal leaks, perforations, and strictures. Stent migration frequently complicates management and often requires additional treatments to reach resolution. Our study aimed to determine predictive factors for stent migration. Methods. Consecutive procedures involving SEMS placed with and without fixation after upper gastrointestinal surgery between 2009 and 2014 were retrospectively reviewed. Demographic, surgical history, rate of stent migration, and stent characteristic data were collected. Rates of stent migration were compared. Results. We reviewed 214 consecutive procedures involving stents placed in the foregut. Median duration of stent placement was 4.0 ± 10.3 weeks. Forty-three (20%) stents migrated after placement. Of those, 27 (63%) required stent replacement. Eleven (5%) procedures utilized stent fixation and 203 (95%) did not. Fixation techniques included endoscopic clips (9%), endoscopic sutures (73%), and transnasal sutures (18%). Stent migration rate was not different between those with and those without fixation ( P = .2). Rate of migration was significantly higher in procedures involving fully covered stents ( P < .001). Migration occurred after esophagectomy and gastric bypass ( P < .001 and P < .05, respectively) and in patients with diabetes ( P < .01). Conclusions. A challenge with SEMS use is stent migration. Diabetes and using fully covered stents were associated with migration as were SEMS used to treat complications of esophagectomy and gastric bypass. Stent fixation was not associated with the prevention of stent migration. No pattern was found that favors an approach to reduce stent migration.
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Tsuboi, Tomofumi, Tamito Sasaki, Masahiro Serikawa, Yasutaka Ishii, Teruo Mouri, Akinori Shimizu, Keisuke Kurihara, et al. "Preoperative Biliary Drainage in Cases of Borderline Resectable Pancreatic Cancer Treated with Neoadjuvant Chemotherapy and Surgery." Gastroenterology Research and Practice 2016 (2016): 1–6. http://dx.doi.org/10.1155/2016/7968201.

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Objective. To elucidate the optimum preoperative biliary drainage method for patients with pancreatic cancer treated with neoadjuvant chemotherapy (NAC).Material and Methods. From January 2010 through December 2014, 20 patients with borderline resectable pancreatic cancer underwent preoperative biliary drainage and NAC with a plastic or metallic stent and received NAC at Hiroshima University Hospital. We retrospectively analyzed delayed NAC and complication rates due to biliary drainage, effect of stent type on perioperative factors, and hospitalization costs from diagnosis to surgery.Results. There were 11 cases of preoperative biliary drainage with plastic stents and nine metallic stents. The median age was 64.5 years; delayed NAC occurred in 9 cases with plastic stent and 1 case with metallic stent (p=0.01). The complication rates due to biliary drainage were 0% (0/9) with metallic stents and 72.7% (8/11) with plastic stents (p=0.01). Cumulative rates of complications determined with the Kaplan-Meier method on day 90 were 60% with plastic stents and 0% with metallic stents (log-rank test,p=0.012). There were no significant differences between group in perioperative factors or hospitalization costs from diagnosis to surgery.Conclusions. Metallic stent implantation may be effective for preoperative biliary drainage for pancreatic cancer treated with NAC.
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Caton, M. T., A. Z. Copelan, K. H. Narsinh, D. Murph, A. A. Abla, D. L. Cooke, S. W. Hetts, et al. "Form and Function in Intracranial Neurovascular Stents: A Historical Perspective and State-of-the-Art Clinical Review for the Noninterventionalist." Neurographics 11, no. 2 (March 1, 2021): 96–110. http://dx.doi.org/10.3174/ng.2000058.

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The use of intracranial stents in neurointerventional surgery has been practiced for decades. However, the spectrum of treatable pathology, available devices, and clinical adoption of intracranial stents has exploded in recent years. Diagnostic neuroradiologists play a critical role in the evaluation of these devices after deployment, yet may not be familiar with state-of-the-art intracranial stent devices and indications. This review provides an overview of intracranial stents for cerebrovascular disease, with 3 chief learning objectives: 1) to understand the basic principles of stent design, biomechanics, and deployment, and the resulting influence on cerebrovascular hemodynamics; 2) to be familiar with the spectrum of intracranial pathology amenable to endovascular stent placement; and 3) to recognize the radiographic appearance of successful intracranial stent deployment and intracranial stent‐related complications.Learning Objective: Recognize the key principles of design (form), current indications (function), and potential complications of intracranial stents used in neurointerventional surgery
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Gumbienė, Lina, Sigitas Čibiras, Alicija Dranenkienė, Živilė Katliorienė, Giedrė Nogienė, and Eugenijus Kosinskas. "Aortos rekoarktacijos gydymas angioplastika ir stentais." Lietuvos chirurgija 5, no. 3 (January 1, 2007): 0. http://dx.doi.org/10.15388/lietchirur.2007.3.2225.

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Lina Gumbienė, Sigitas Čibiras, Alicija Dranenkienė, Živilė Katliorienė, Giedrė Nogienė, Eugenijus KosinskasVilniaus universiteto Širdies chirurgijos centras, Santariškių g. 2, LT-08661 VilniusEl paštas: Lina.Gumbiene@santa.lt Įvadas / tikslas Aprašomas naujo metodo – balioninės angioplastikos ir kraujagyslinių stentų – pritaikymas gydant aortos rekoarktaciją, atsiradusią po chirurginės ydos korekcijos. Ligoniai ir metodai Atlikta retrospektyvi duomenų analizė dešimties ligonių, kuriems Vilniaus universiteto Širdies chirurgijos centre 1994–2006 metais aortos rekoarktacija buvo gydyta balionine angioplastika ar stentavimu. Aprašoma centre taikyta aortos angioplastikos ir stentų implantavimo metodika. Rezultatai Aortos rekoarktacijos angioplastika atlikta keturiems ligoniams. Intraaortinis gradientas aortos koarktacijos vietoje po procedūros sumažėjo vidutiniškai 82,15%. Vėlyvuoju stebėjimo periodu (vid. 6,14 ± 5,2 metai) rekoarktacija buvo trims ligoniams. Aortos rekoarktacijos stentavimas atliktas septyniems ligoniams, vienam iš jų dėl atsinaujinusios rekoarktacijos po angioplastikos. Dviem ligoniams procedūra nepavyko. Kitiems penkiems ligoniams intraaortinis gradientas reAoCo vietoje vidutiniškai sumažėjo nuo 29,6 ± 11,6 mm Hg iki 2,6 ± 3,7 mm Hg. Stebėjimo laikotarpiu 0,58–3,75 metų po procedūros rekoarktacija nustatyta tik vienam ligoniui. Jam atliktas stento plėtimas. Išvada Perkateterinė balioninė angioplastika ir balionais išplečiami kraujagysliniai stentai veiksmingi ir saugūs aortos rekoarktacijų gydymo metodai. Pagrindiniai žodžiai: aortos koarktacija, rekoarktacija, perkateterinis gydymas Treatment of recurrent coarctation of the aorta employing balloon angioplasty and endovascular stents Lina Gumbienė, Sigitas Čibiras, Alicija Dranenkienė, Živilė Katliorienė, Giedrė Nogienė, Eugenijus KosinskasVilnius University, Centre of Heart Surgery, Santariškių g. 2, LT-08661 Vilnius, LithuaniaE-mail: Lina.Gumbiene@santa.lt Background / objective We present a new method of treatment – balloon angioplasty and endovascular stent – for patients with aortic re-coarctation following surgical correction. Patients and methods Ten patients with re-coarctation of the aorta after surgery underwent balloon angioplasty or stent implantation at Vilnius University Heart Surgery Centre in 1994–2006. Results Balloon angioplasty was performed in 4 patients. The intraaortic gradient in the site of coarctation decreased on average by 82.15% after the procedure. Re-coarctation developed in 3 patients in the late follow-up period (mean 6.14 ± 5.2 years). Stents were implanted in 7 patients (one developed re-coarctation after angioplasty). The procedure failed in two. The intraaortic gradient at the site of re-coarctation decreased on average from 29.6 ± 11.6 mm Hg to 2.6 ± 3.7 mm Hg. Re-coarctation was diagnosed only in one patient during the follow-up (0.58–3.75 years), and stent dilatation was performed in this case. Conclusions Balloon angioplasty and endovascular stents are effective and safe methods for the treatment of re-coarctation of the aorta. Key words: coarctation of the aorta, recurrent coarctation, transcatheter treatment
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Yaniv, Dan, Lena Shlosberg, Joseph Flomenblit, Gregory Frenklach, Lea Rath-Wolfson, and Eitan Yaniv. "Removable Sinus Stent for Endoscopic Sinus Surgery: An Animal Trial." American Journal of Rhinology & Allergy 31, no. 1 (January 2017): e29-e32. http://dx.doi.org/10.2500/ajra.2017.31.4401.

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Background The goal of endoscopic sinus surgery in chronic sinusitis is to create good drainage of the paranasal sinuses. Metal stents used to prevent lateralization of the middle concha are associated with adverse effects. Objective The aim of this experimental study was to evaluate the feasibility and safety of a newly developed composite removable stent. Methods The composite removable stent was implanted in nine sheep (18 stents) in the ethmoid cavity after performing an ethmoidectomy and was examined for stability, ease of removal, and adverse effects. Histologic findings were compared between implantation and nonimplantation sites at several time points after stent deployment and removal. Results None of the stents migrated or fell out of the nose. After 4 weeks, there was no infection in the nose or around the stents, and there was no damage to the mucosa. An histologic study showed only mild-to-moderate inflammatory cell infiltration relative to control sites, with no damage to the mucosal epithelium and no necrosis at distant sites. At 2 weeks after stent removal, slight-to-moderate fibroplasia was noted in the deep nasal tissue, with slight-to-moderate osteocartilaginous metaplasia and bone remodeling but no necrotic or inflammatory changes in surrounding tissues. At 4 weeks after stent removal, the middle meatus remained open. Conclusion The promising results of the composite removable stent in a sheep model justify further studies in patients undergoing endoscopic sinus surgery for chromic sinusitis.
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Dissertations / Theses on the topic "Stents (Surgery)"

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Irsale, Swagat Appasaheb Adanur Sabit. "Polymeric textile stents prototyping and modeling /." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Summer/doctoral/IRSALE_SWAGAT_42.pdf.

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Qing, Kaixiong, and 庆开雄. "Thoracic endovascular stent graft repair (TEVAR) for treating type B aortic dissections (TBAD) : a hemodynamic and morphologic perspective." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/197128.

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TEVAR has been used extensively to treat TBAD. The principle of treatment involve placement of a stent graft in the true lumen to cover the primary tear, thereby excluding the false lumen. Success depends on a combination of factors: reduction of false lumen pressure and perfusion, thrombosis of the false lumen, and remodeling of the aorta leading to eventual healing. The long-term goals are to prevent continuous growth of the false lumen, reinterventions, and aneurysm rupture. The success of TEVAR depends on a combination of factors, including the blood flow and pressure in the two aortic lumens, and remodeling is a dynamic process. Much controversy exists regarding the ideal timing of TEVAR, its efficacy in effecting complete false lumen exclusion, the long-term durability of the repair, and the fate of the aortic size. The objective of this thesis is to examine the morphological and hemodynamic changes within the aortic lumens after TEVAR, using a combination of ex-vivo animal models and computational tomography analysis. The residual pressure of the true and false lumens in TBAD models was studied. Volumetric analyses of CT scan of patients were compared. The ultimate goals are to determine if it is beneficial to treat type B dissections early, and to determine long-term morphological results. In ex-vivo hemodynamic study, 28 fresh porcine aortas models were created to simulate three different pathological scenarios of TBAD: model A represented pre-treated TBAD; model B represented post-treated TBAD with patent false lumen; and model C represented chronic stage of post-treated TBAD with false lumen thrombosis. True lumen and false lumen pressure differences were compared between the three models. Pressure effect was successfully reduced by 30% in model C in comparison with the other two models. No hemodynamic parameters were significantly different between model A and model B. Aortic remodeling parameters were volumetrically analyzed and compared between two groups of patients who underwent endo-grafting for uncomplicated TBAD (group A) and dissecting aneurysms (group B). Modern DIOCM processing workstations and software were used to reconstruct thoracic aorta with serial CT scans. The true lumen, false lumen, thrombus and aortic size were measured volumetrically. Stent graft migration and area of inlet and outlet were also quantified. There were progressive migration and continuous expansion of the stent graft on patients in both groups. Favorable aortic remodeling was observed in most. One fourth of all patients demonstrated aortic volume increase at 36 months. However, there was no difference between group A and group B in terms of stent graft re-shaping and aortic remodeling. In conclusion, Aortic remodeling after TEVAR in treating TBAD is a continuous process. There were no significant differences between chronic dissections and dissecting aneurysms in all morphological parameters. Treating chronic dissections before aneurysm formation does not seem to have a morphologic advantage. Sealing of primary entry tear with introducing thrombosis could significantly reduce false lumen pressure. However, the remaining pressure accumulations should be considered to reduce by further excluding distal reentry tears in those patients who undergo progressive false lumen expansion after TEVER.
published_or_final_version
Surgery
Doctoral
Doctor of Philosophy
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Leung, Kar-ming, and 梁嘉銘. "Stent assisted coiling for wide-neck cerebral aneurysms." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B4290528X.

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Leung, Kar-ming. "Stent assisted coiling for wide-neck cerebral aneurysms." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B4290528X.

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Hessian, Renee. "Drug eluting stents versus bare metal stents for the treatment of coronary artery disease: A review of the benefits and harms." Thesis, University of Ottawa (Canada), 2009. http://hdl.handle.net/10393/28149.

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Drug eluting stents (DES) have been found to reduce restenosis and the rate of repeat angiographic procedures related to restenosis. However, an increase in harms with their use has been suspected. Therefore, there may be an important trade-off of efficacy for harms with the use of DES, especially over the long term. We conducted asystematic review and meta-analysis of RCT, examining the efficacy of DES versus bare metal stents (BMS). A separate review was then conducted which included non randomized studies, as well as RCT to evaluate long term harms of DES when compared to BMS. Analysis demonstrated that there was significant efficacy noted for DES over BMS, especially for the sirolimus coated stents. The long-term data demonstrated preserved efficacy of DES with no significant increase in the harms of death, myocardial infarction, stent thrombosis or revascularization for a follow-up extending out to four years.
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Dolla, William Jacob Spenner Becker Bryan R. "Drug diffusion and structural design criteria for conventional and auxetic drug-eluting stents." Diss., UMK access, 2006.

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Thesis (Ph. D.)--School of Computing and Engineering and Dept. of Chemistry. University of Missouri--Kansas City, 2006.
"A dissertation in engineering and chemistry." Advisor: Bryan R. Becker. Typescript. Vita. Description based on contents viewed Jan. 26, 2007; title from "catalog record" of the print edition. Includes bibliographical references (leaves 127-130). Online version of the print edition.
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Appanaboyina, Sunil. "Computational hemodynamic study of endovascular stenting in patient-specific cerebral aneurysms." Fairfax, VA : George Mason University, 2008. http://hdl.handle.net/1920/3233.

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Thesis (Ph.D.)--George Mason University, 2008.
Vita: p. 83. Thesis director: Juan R. Cebral. Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Computational Sciences and Informatics. Title from PDF t.p. (viewed Aug. 27, 2008). Includes bibliographical references (p. 78-82). Also issued in print.
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Mut, Fernando. "Extensions to the computational hemodynamics modeling of cerebral aneurysms." Fairfax, VA : George Mason University, 2008. http://hdl.handle.net/1920/3284.

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Thesis (Ph.D.)--George Mason University, 2008.
Title from PDF t.p. (viewed Oct. 14, 2008). Thesis director: Juan R. Cebral. Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Computational Sciences and Informatics. Vita: p. 98. Includes bibliographical references (p. 90-97). Also available in print.
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Irsale, Swagat Appasaheb Adanur Sabit. "Textile prosthesis for vascular applications." Auburn, Ala., 2004. http://hdl.handle.net/10415/953.

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Lam, Shang-king. "Computational fluid dynamic analyses of the endovascular stent-graft at the thoracic aorta with different biomechanical factors." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B41758031.

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Books on the topic "Stents (Surgery)"

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Carotid artery stenting: The basics. New York, N.Y: Humana Press, 2009.

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Inc, Strategic Business Development, ed. Intravascular stents: A physician's guide. [Kauai, Hawaii, U.S.A.] (Kauai, Hawaii, U.S.A., P.O. Box 1155 Hanalei, Kauai 96714): Strategic Business Development, 1990.

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W, Serruys P., ed. Handbook of coronary stents. London: M. Dunitz, 1997.

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J, White Christopher, ed. Drug-eluting stents. London: Taylor & Francis, 2005.

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W, Serruys P., and Kutryk Michael J. B, eds. Handbook of coronary stents. 3rd ed. London: Martin Dunitz, 2000.

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Ulrich, Sigwart, and Frank G. I, eds. Coronary stents. Berlin: Springer-Verlag, 1992.

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Daniel, Yachia, ed. Stenting the urinary system. Oxford, UK: ISIS Medical Media, 1998.

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W, Serruys P., ed. Coronary stenting: Current perspectives. London: Martin Dunitz, 1999.

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A, Schneider Peter, Bohannon W. Todd, and Silva Michael B, eds. Carotid interventions. Boca Raton, FL: Marcel Dekker, 2005.

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Insight, LLC Medtech. European markets for stents in peripheral vascular applications. Newport Beach, CA: Medtech Insight, 2005.

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Book chapters on the topic "Stents (Surgery)"

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Pérez-Fentes, Daniel, Javier Aranda-Pérez, Julia E. de la Cruz, and Federico Soria. "Indications, Complications and Side Effects of Ureteral Stents." In Urinary Stents, 5–20. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-04484-7_2.

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AbstractUreteral stents are one of the most frequently used tools in urology. These medical devices have a multitude of both prophylactic and therapeutic indications. Among the first ones, the use of stents related to the treatment of ureteral or renal stones, in renal transplant surgery and in reconstructive surgery of the upper urinary tract by endourological, laparoscopic, robotic or conventional surgical approach. Therapeutic indications are related to urinary tract decompression in obstructive uropathy and as in the conservative treatment of upper urinary tract trauma.Although it has clear benefits, unfortunately it is not free of side effects. Complications associated with ureteral stents can be classified as intraoperative, early complications if they appear between 2 and 4 weeks after stenting, and late complications, depending on the time of onset of side effects. The most common side effects are the development of vesicoureteral reflux, LUTS and stent discomfort. The complications with the highest rate of incidence are asymptomatic bacteriuria and urinary tract infection. There are also common events related to ureteral stent dislodgement and crystallization of the stent surface resulting in encrustation.
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Zakri, Rhana Hassan, and Muhammad Shamim Khan. "Ureteric Stents." In Prosthetic Surgery in Urology, 83–92. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-13859-6_9.

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Nazareno, Gaspar, Nii Lamptey-Mills, and Jay Benson. "Esophageal Stents." In An Internist’s Illustrated Guide to Gastrointestinal Surgery, 57–63. Totowa, NJ: Humana Press, 2003. http://dx.doi.org/10.1007/978-1-59259-389-7_6.

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van Sambeek, M. "Covered Stents and Endoluminal Bypasses." In Vascular Surgery, 149–56. London: Springer London, 2003. http://dx.doi.org/10.1007/978-1-4471-3870-9_21.

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Ognard, Julien, Mohamed Abdelrady, and Jean-Christophe Gentric. "Flow Diverter Stents." In Endovascular Surgery of Cerebral Aneurysms, 103–38. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-7102-9_9.

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de Graaf, Petra, Daniel Yachia, Federico Soria, and Duje Rako. "Urethral Stents. Indications, Complications and Adverse Effects." In Urinary Stents, 31–48. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-04484-7_4.

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AbstractUrethral stents have been used for decades. Although this relatively low invasive treatment gave good results in the beginning, later revealed recurrence of the obstruction and serious adverse effect. In this chapter we provide an overview of the introduction of urethral stents in clinical practice and review the literature on studies using stents to relieve obstruction in the male urethra caused by benign and malignant prostatic enlargement or urethral stricture disease in the human adult male population.For this book chapter we screened the Embase and PubMed databases for publications on stents used in the urethra. We excluded papers on stents elsewhere in the urinary system, including the bladder neck. The primary endpoint was cause and rate of complications and secondary endpoint was patency rate. After careful selection 118 publications were included in this review.Stenting of the urethra, including the prostatic urethra, is prone to adverse effects including dislocation of the stent, dysuria, recurrence of obstruction, urinary incontinence, encrustation and patient discomfort. For urethral stricture disease, open urethral reconstruction is the treatment of choice, for prostate hyperplasia, surgical intervention [e.g. TURP] or pharmaceutical treatment are preferred over stenting. However, patients unfit for this major open surgery, may still benefit from urethral stenting as palliative solution. With this important patient population, research must continue for a better biocompatible stent.
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Ahn, Samuel S., Carber C. Huang, and Foster A. Hays. "Stents for Peripheral Arteries and Veins." In Haimovici's Vascular Surgery, 280–300. Oxford, UK: Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781118481370.ch19.

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Wee, Jon O., and Scott J. Swanson. "Stents for Benign Airway Obstruction." In Difficult Decisions in Thoracic Surgery, 347–52. London: Springer London, 2010. http://dx.doi.org/10.1007/978-1-84996-492-0_39.

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Rassweiler-Seyfried, Marie-Claire. "Use of Magnets for Double-J Ureteral Stents." In Magnetic Surgery, 37–42. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-73947-8_5.

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Larsen, Christine L., and Thomas W. Samuelson. "iStent: Trabecular Micro-Bypass Stent." In Minimally Invasive Glaucoma Surgery, 21–39. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5632-6_3.

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Abstract Within the class of procedures termed minimally invasive glaucoma surgery (MIGS), the iStent Trabecular Micro-Bypass Stent (Glaukos Corporation, San Clemente, CA, USA) is an intraocular implant that resides within Schlemm’s canal and allows for direct bypass of the trabecular meshwork by aqueous fluid. The acceptance of MIGS is growing due to its role in lowering intraocular pressure in mild-to-moderate glaucoma combined with its favorable safety profile. With transscleral glaucoma-filtering surgery, there is an increased potential for significant complications including hypotony, suprachoroidal hemorrhage, and long-term risk of endophthalmitis. By contrast, the iStent minimizes these risks and has demonstrated similarities to cataract surgery in terms of associated complications. Multiple publications have described both the safety and efficacy of the implant. These studies are reviewed in addition to a description of the implantation technique and postoperative management pearls. The second-generation model, the iStent inject, may ease implantation and the use of multiple stents may potentially play a role in more advanced disease.
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Conference papers on the topic "Stents (Surgery)"

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Pewowaruk, Ryan, Kevin Pettit, Carolina Larrain, Cody Johnson, Christopher J. Francois, Luke Lamers, and Alejandro Roldán-Alzate. "Pulmonary Artery Stenosis: Early Interventions With Low Profile Stents Versus Delayed Interventions With Large Diameter Stents." In 2020 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/dmd2020-9005.

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Abstract Pulmonary artery stenosis (PAS) is a common complication of heart surgery in infancy. With recent advances in low profile-small diameter stent technology, PA stenting is now often performed in infants. While PAS stenting in older children does not impact distal PA growth and multiplication, in infants still undergoing significant PA growth, the impact of PA stent timing on long term PA development is unknown and potentially important. In a swine PAS model, the effects of early and delayed stent interventions on PA growth and cardiac function were comprehensively assessed. PA stenting had a positive impact on hemodynamics, lung perfusion, and histology, but the timing of intervention, either early or late, does not make a significant difference.
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Geiger, Shannon B., Mark P. Golay, Benjamin G. Harless, Brice A. Holzgang, David R. Pugh, Rawley J. Stanhope, Patricia S. Wolfe, Karri Satyaprakash, Olga Pierrakos, and Pavlos Vlachos. "Effect of Stent Design Parameters on Fluid and Structural Mechanics in Coronary Arteries." In ASME 2007 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2007. http://dx.doi.org/10.1115/sbc2007-176532.

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As undergraduates at Virginia Polytechnic Institute and State University, our senior design team has been developing new arterial stent designs using computational, experimental and flow characterizations. Coronary artery stenting has become a popular alternative to bypass surgery due to its relatively low cost and short recovery time. There are approximately one million of these procedures performed each year. At the beginning of 2006, drug eluting stents (DES) accounted for 90% of stenting procedures; this number dropped below 75% by the end of 2006. The initial popularity of DES was due to their effective reduction in restenosis compared to the first generation of stents, bare-metal stents. Recently, the makers of DES have agreed that, compared with bare-metal stents, there is a small, but significant increase in the rate of stent thrombosis for both the Cypher (Johnson & Johnson) and Taxus (Boston Scientific) stents, beginning about 12 months after implantation [1].
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Appanaboyina, Sunil, Fernando Mut, Rainald Löhner, Christopher M. Putman, and Juan R. Cebral. "Techniques for Virtual Stenting of Intracranial Aneurysms." In ASME 2007 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2007. http://dx.doi.org/10.1115/sbc2007-176433.

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Intracranial aneurysms are pathological dilations of the arteries in the brain, whose rupture is often fatal. Surgery and endovascular embolization are the two most common methods of treatment. Surgery involves opening a portion of the skull and placing metallic clips at the aneurysm neck thereby preventing blood flow into the aneurysm. In the case of embolization, a catheter is used to pack platinum coils in the aneurysm reducing the inflow and promoting thrombus formation. Due to its less invasive approach endovascular embolization is preferred over surgery. Nevertheless this approach also has some serious aftereffects. Coil compaction followed by the re-growth or the formation of the secondary aneurysm is the most common problem. The endovascular embolization approach also has a serious shortcoming that the coils alone cannot be used to block every type of aneurysm. Wide neck or fusiform aneurysms are coiled with the help of stents. Recent studies show that stent, which is a hollow cylindrical mesh, can be successfully used to limit the flow of blood into the aneurysm. However these studies have been conducted using idealized in-vitro and numerical models. Studies conducted using patient-specific models generated from medical images will provide a more realistic approach to computationally investigate the effects of stents on intra-aneurysmal flow patterns. However generation of computational grids inside the parent vessel and around these stents is a challenging task. In this paper an algorithm to map the stent to a patient-specific vascular model and an adaptive unstructured embedded gridding technique to model flow around stents are presented. Finally these techniques are demonstrated on patient-specific cases to prove their feasibility.
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Scheich, M., and R. Hagen. "Clinical experience with self-expanding resorbable mometasone stents in functional endoscopic sinus surgery." In Abstract- und Posterband – 90. Jahresversammlung der Deutschen Gesellschaft für HNO-Heilkunde, Kopf- und Hals-Chirurgie e.V., Bonn – Digitalisierung in der HNO-Heilkunde. Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1686747.

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Mut, Fernando, and Juan R. Cebral. "Hemodynamic Performance of Oversized Flow Diverters." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53380.

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Although endosaccular coiling of aneurysms has been shown to be effective and has arguably replaced surgery for the treatment of most aneurysms it has significant limitations in achieving durable occlusion of many large and giant aneurysms because of a propensity for recanalization. For this reason flow diverting stents are increasingly been considered as a therapeutic alternative to surgical clipping and endovascular coiling. The aim of flow diverting stents is to create a stable hemodynamic environment within the aneurysm favorable for thrombosis and aneurysm occlusion, while maintaining the patency of any side branch that may be crossed by the device. The hemodynamic performance of these devices and the outcome of the procedures depend on their porosity and geometric characteristics [1]. However, the local porosity and stent cell geometry after implantation into a given artery depends on the choice of the stent diameter. Typically, stents are oversized to achieve a good wall apposition. Thus, the goal of this study was to investigate the effect of stent oversizing on its hemodynamic performance.
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Iglesias Jorquera, E., J. Egea Valenzuela, A. Serrano Jimenez, G. Carrilero Zaragoza, A. Ortega Sabater, E. Sánchez Velasco, D. Ruiz de Angulo, V. Munitiz, P. Parrilla Paricio, and F. Alberca de las Parras. "USE OF SELF-EXPANDING METALLIC STENTS IN THE MANAGEMENT OF ESOPHAGEAL LEAKS AFTER SURGERY." In ESGE Days 2019. Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1681678.

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Ruiz Torres, JF, RA Brizuela Quintanilla, FN Piñol Jiménez, JL García-Menocal Hernández, and NA Contino. "EXPANDABLE METALLIC STENTS IN ESOPHAGEAL: EXPERIENCE IN THE NATIONAL CENTER FOR MINIMAL ACCESS SURGERY." In ESGE Days 2018 accepted abstracts. Georg Thieme Verlag KG, 2018. http://dx.doi.org/10.1055/s-0038-1637460.

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Mogharrabi, Farshad, Jonathan Kuhlenhoelter, Blake Anderson, Katalin Kauser, and Kenneth Monson. "Effect of Photoactivated Cross-Linking Compound on Mechanical Properties of Porcine Carotid Arteries Post-Angioplasty." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11661.

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Abstract Percutaneous transluminal angioplasty (PTA) is a medical procedure performed on patients with severe atherosclerosis to open up stenosed blood vessels by inflating a balloon at the narrowing location. In many cases of PTA, restenosis occurs post-surgery due either to elastic behavior of the artery, also known as elastic recoil in medical literature, or to plaque reformation within the lumen. For that reason, stents are commonly deployed to keep the arterial lumen open. Stent deployment causes problems in some cases; for example, the presence of stents in arteries with frequent movements and large deformations can cause ruptures in the arterial wall. Recent studies on 1,8-Naphthalimide organic compounds have shown that when these compounds are activated using a certain wavelength of light, it causes cross-linking between the components of the extracellular matrix. This observation has led to studies with the goal of developing a method to utilize this process to replace stents for cases with limiting conditions for stent deployment. In this study we focused on measuring and quantifying the effects of this compound on the mechanical properties of treated arteries undergoing PTA under a variety of loading conditions.
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Hu, Yongsheng, Mingyu Zheng, Wentao Hou, Ye Rong, Junya Liu, Rui Ning, Yansong Fan, and Xiaoyu Sun. "Numerical simulation of flow field in vascular after artery bypass and stents surgery based on FLUENT." In 3rd International Conference on Biomedical and Intelligent Systems (IC-BIS 2024), edited by Zulqarnain Baloch and Pier Paolo Piccaluga. SPIE, 2024. http://dx.doi.org/10.1117/12.3036764.

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Yılmaz Topçuoğlu, Miray-Su, Antje Hammitsch-Mayer, Peter K. Plinkert, and Ingo Baumann. "Resection of dorsal septal parts and stents in the surgical repair of congenital Choanal Atresia – Status quo in Germany." In 95th Annual Meeting German Society of Oto-Rhino-Laryngology, Head and Neck Surgery e. V., Bonn. Georg Thieme Verlag KG, 2024. http://dx.doi.org/10.1055/s-0044-1785037.

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Reports on the topic "Stents (Surgery)"

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Lee, Zhengwei. Stent expansion limited surgery versus emergency surgery for colon cancer with malignant bowel: A meta-analysis. INPLASY - International Platform of Registered Systematic Review Protocols, April 2020. http://dx.doi.org/10.37766/inplasy2020.4.0171.

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Zhang, Jianhao, Wenming Yang, and Xueting Liu. Comparison of self-expandable metallic stent (SEMS) and preventative stoma (PS) as a bridge to surgery (BTS) for obstructive colorectal cancer. A protocol for systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, October 2020. http://dx.doi.org/10.37766/inplasy2020.10.0079.

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Gupta, Shikhar, Mehtab Ahmed, Sayema ., Azam Haseen, and Saif Quaiser. Relevance of Preoperative Vessel Mapping and Early Postoperative Ultrasonography in Predicting AV Fistula Failure in Chronic Kidney Disease Patients. Science Repository, February 2024. http://dx.doi.org/10.31487/j.rdi.2023.02.02.

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Introduction: The increasing prevalence of chronic kidney disease (CKD), coupled with advancements in the diagnosis and treatment of renal diseases and improvements in life expectancy, has led to a greater number of patients requiring hemodialysis. The preferred method of vascular access for hemodialysis is AV fistula formation; however, it is associated with a high rate of failure. In our prospective study, we focused on 40 CKD patients planned for initiation of maintenance hemodialysis. Methods: We employed preoperative ultrasound mapping to assess cephalic vein diameter, compressibility, and colour flow, as well as radial and brachial artery diameter, peak systolic velocity, and intimal wall calcification. Postoperatively, ultrasound examinations were conducted on day 7 and at 6 weeks to evaluate fistula blood volume and detect any complications. Results: A significant association between fistula failure and cephalic vein diameter, brachial artery diameter, intimal vessel wall calcification, and comorbid conditions like diabetes mellitus was observed. Furthermore, blood flow at day 7 was notably lower in the failure group compared to those with a functioning fistula and any fistula with blood flow <154 ml/min on day 7 may be predictive of early fistula failure. Conclusion: Preoperative vessel mapping and early postoperative ultrasonography is indispensable for patients who require AV fistula formation for hemodialysis and provide valuable information for selecting suitable vessels for successful fistula creation and enable early intervention to salvage a failing fistula after the surgery. By utilizing these, healthcare professionals can make informed decisions and take necessary steps to optimize the outcomes of AV fistula formation in patients undergoing hemodialysis.
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Lewis, Dustin, Naz Modirzadeh, and Gabriella Blum. Medical Care in Armed Conflict: International Humanitarian Law and State Responses to Terrorism. Harvard Law School Program on International Law and Armed Conflict, September 2015. http://dx.doi.org/10.54813/hwga7438.

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The surge in armed conflicts involving terrorism has brought to the fore the general question of medical care in armed conflict and the particular legal protections afforded to those providing such care to terrorists. Against this backdrop, we evaluate international humanitarian law (IHL) protections for wartime medical assistance concerning terrorists. Through that lens, we expose gaps and weaknesses in IHL. We also examine tensions between IHL and state responses to terrorism more broadly. In studying the IHL regime applicable to medical care, substantive fragmentation and gaps in legal protection between states and across types of conflict emerge. These ruptures are not new. But they are increasingly noticeable as terrorism is more frequently conceptualized as forming part of armed conflicts and as more states undertake aggressive responses to terrorist threats. The U.N. Security Council has been a key driver of these responses, requiring member states to take more and broader steps to obviate terrorist threats. Yet so far the Council has not required that, in doing so, states fully exempt impartial wartime medical care, even in circumstances that would render such care protected under IHL. Rather, the Council seems to consider providing medical assistance and supplies to al-Qaeda and its associates as at least a partial ground for designating those who facilitate such care as terrorists themselves. The overall result today is unsatisfactory. By prosecuting physicians for supporting terrorists through medical care in armed conflicts, some states are likely violating their IHL treaty obligations. But in certain other instances where states intentionally curtail impartial medical care there is no clear IHL violation. Both those actual IHL violations and the lack of clear IHL violations, we think, are cause for concern. The former represent failures to implement the legal regime. And the latter highlight the non-comprehensiveness - or, at least, the indeterminateness and variability - of the normative framework.
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Burniske, Jessica, Dustin Lewis, and Naz Modirzadeh. Suppressing Foreign Terrorist Fighters and Supporting Principled Humanitarian Action: A Provisional Framework for Analyzing State Practice. Harvard Law School Program on International Law and Armed Conflict, October 2015. http://dx.doi.org/10.54813/nrmd2833.

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In 2014, reports suggested that a surge of foreign jihadists were participating in armed conflicts in Syria, Iraq, and elsewhere. The United Nations Security Council responded by imposing in Resolution 2178 (2014) an array of obligations on member states to counter the threat posed by “foreign terrorist fighters” (FTFs). In the intervening year, those states have taken a range of actions — though at various speeds and with varying levels of commitment — to implement the FTF obligations imposed by the Council. Meanwhile, many states continue to fund and otherwise throw their support behind life-saving humanitarian relief for civilians in armed conflicts around the world — including conflicts involving terrorists. Yet, in recent years, members of the humanitarian community have been increasingly aware of the real, perceived, and potential impacts of counterterrorism laws on humanitarian action. Part of their interest stems from the fact that certain counterterrorism laws may, intentionally or unintentionally, adversely affect principled humanitarian action, especially in regions where terrorist groups control territory (and thus access to civilians, too). The effects of these laws may be widespread — ranging from heightened due diligence requirements on humanitarian organizations to restrictions on travel, from greater government scrutiny of national and regional staff of humanitarian organizations to decreased access to financial services and funding. Against that backdrop, this briefing report has two aims: first, to provide a primer on the most salient issues at the intersection of counterterrorism measures and humanitarian aid and assistance, with a focus on the ascendant FTF framing. And second, to put forward, for critical feedback and assessment, a provisional methodology for evaluating the following question: is it feasible to subject two key contemporary wartime concerns — the fight against FTFs and supporting humanitarian aid and assistance for civilians in terrorist-controlled territories — to meaningful empirical analysis?
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Uncertainty over the use of stents after telescopic surgery for kidney stones. National Institute for Health Research, November 2016. http://dx.doi.org/10.3310/signal-000324.

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