Bibliografías temáticas / Intraoperative evaluation

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Literatura académica sobre el tema "Intraoperative evaluation"

Autor: Grafiati
Publicado: 11 de marzo de 2023

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Artículos de revistas sobre el tema "Intraoperative evaluation"

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Li, Wenping, and Mary K. Sidawy. "Intraoperative Cytologic Evaluation." Pathology Case Reviews 15, no. 5 (2010): 143–47. http://dx.doi.org/10.1097/pcr.0b013e3181f66064.

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Mays, Bradley W. "Intraoperative Carotid Evaluation." Archives of Surgery 135, no. 5 (2000): 525. http://dx.doi.org/10.1001/archsurg.135.5.525.

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Elliott, Robin M., Robert R. Shenk, Cheryl L. Thompson, and Hannah L. Gilmore. "Touch Preparations for the Intraoperative Evaluation of Sentinel Lymph Nodes After Neoadjuvant Therapy Have High False-Negative Rates in Patients With Breast Cancer." Archives of Pathology & Laboratory Medicine 138, no. 6 (2014): 814–18. http://dx.doi.org/10.5858/arpa.2013-0281-oa.

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Context.— The use of a touch preparation for intraoperative sentinel lymph node diagnosis has become a preferred method of many pathologists because of its reported high sensitivity and rapid turnaround time. However, after neoadjuvant chemotherapy many lymph nodes have significant treatment-related changes that may affect the diagnostic accuracy of the intraoperative evaluation. Objective.— To determine the accuracy of touch preparation for the intraoperative diagnosis of metastatic breast carcinoma in the neoadjuvant setting. Design.— We reviewed retrospectively the results of intraoperative evaluations for 148 different sentinel lymph nodes from 63 patients who had undergone neoadjuvant chemotherapy for invasive breast cancer at our institution. The intraoperative touch preparation results were compared with the final pathology reports in conjunction with relevant clinical data. Results.— Use of touch preparation for the evaluation of sentinel lymph nodes intraoperatively after neoadjuvant therapy was associated with a low sensitivity of 38.6% (95% confidence interval [CI], 24.4–54.5) but high specificity of 100% (95% CI, 96.5–100). There was no difference in sensitivity rates between cytopathologists and noncytopathologists in this cohort (P = .40). Patients with invasive lobular carcinoma and those who had a clinically positive axilla before the initiation of neoadjuvant therapy were the most likely to have a false-negative result at surgery. Conclusions.— Intraoperative touch preparations should not be used alone for the evaluation of sentinel lymph nodes in the setting of neoadjuvant therapy for breast cancer because of low overall sensitivity.
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Sato, H., A. Hyodo, Y. Matsumaru, et al. "The Evaluation of Preoperative Embolization of Meningioma." Interventional Neuroradiology 3, no. 2_suppl (1997): 101–5. http://dx.doi.org/10.1177/15910199970030s220.

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To evaluate the efficacy of preoperative embolization of meningioma, we examined the correlation between the angiographic disappearance of the tumor blush after the embolization and the volume of blood loss and transfusion intraoperatively. Preoperative embolization of meningioma with intravascular neurosurgery was attempted for 42 trials, 41 cases from July 1989 to December 1995. There were no major complications attributed to the embolization procedure. As a subjective assessment in 23 cases the information from the surgeon following the operation was obtained. The angiographic disappearance of the tumor blush and reducing of the bleeding from tumor could be considered to be statiscally significant (p<0.05). As an objective assessment in 37 cases following operation, the volume of both intraoperative blood loss and blood transfusion was examined. The angiographic disappearance of the tumor blush and reduced intraoperative blood transfusion could be also considered to be statiscally significant (p<0.05), otherwise reduced intraoperative blood loss failed to reach the significance level. In this study the efficacy of preoperative embolization of meningioma has been especially shown to reduce intraoperative blood transfusion significantly, therefore it is very useful to increase the chance of complete tumor removal with more safely and less invasively.
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Creager, Andrew J., Jo Ann Shaw, Peter R. Young, and Kim R. Geisinger. "Intraoperative Evaluation of Lumpectomy Margins by Imprint Cytology With Histologic Correlation." Archives of Pathology & Laboratory Medicine 126, no. 7 (2002): 846–48. http://dx.doi.org/10.5858/2002-126-0846-ieolmb.

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Abstract Background.—Several well-controlled studies have demonstrated significantly increased local recurrence rates in patients with low-stage breast carcinoma treated with breast conservation therapy in whom focally positive margins were not reexcised. Imprint cytology is a rapid technique for evaluating surgical margins intraoperatively, thus allowing reexcisions to be performed during the initial surgery. The large majority of studies on the use of intraoperative imprint cytologic examination of breast conservation therapy margins have been performed at university-based academic centers. Objective.—To evaluate the utility of intraoperative imprint cytologic evaluation of breast conservation therapy margins in a community hospital setting. Methods.—We retrospectively reviewed the intraoperative imprint cytology margins of 141 lumpectomy specimens that had been obtained from 137 patients between May 1997 and May 2001. Results.—We evaluated 758 separate margins. On a patient basis, the sensitivity was 80%, the specificity was 85%, the positive predictive value was 40%, the negative predictive value was 97%, and the overall accuracy was 85%. There were no cytologically unsatisfactory margins. Conclusions.—Imprint cytology is an accurate, simple, rapid, and cost-effective method for determining the margin status of breast conservation therapy specimens intraoperatively in the community hospital setting. This method allows a survey of the entire surface area of the lumpectomy specimen, which is not practical using frozen section evaluation.
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Guarda, Luis A. "Intraoperative cytologic diagnosis: Evaluation of 370 consecutive intraoperative cytologies." Diagnostic Cytopathology 6, no. 4 (1990): 235–42. http://dx.doi.org/10.1002/dc.2840060403.

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TEMEL, Hakan, Bilge KARSLI, Nurten KAYACAN, Yesim CETİNTAS, and Zekiye BİGAT. "Evaluation of Intraoperative Fluid Management." Akdeniz Medical Journal 8, no. 1 (2022): 33–41. http://dx.doi.org/10.53394/akd.1037455.

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Qui[ntilde]ones-Baldrich, William J., Stanley Ziomek, Theodore C. Henderson, and Wesley S. Moore. "Intraoperative fibrinolytic therapy: Experimental evaluation." Journal of Vascular Surgery 4, no. 3 (1986): 229–36. http://dx.doi.org/10.1067/mva.1986.avs0040229.

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LoCicero, Joseph, Jerod M. Loeb, James W. Frederiksen, and Lawrence L. Michaelis. "Intraoperative evaluation of ventricular tachycardia." Journal of Thoracic and Cardiovascular Surgery 97, no. 1 (1989): 152. http://dx.doi.org/10.1016/s0022-5223(19)35141-4.

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DYESS, DONNA LYNN, BILLIE W. BRUNER, CYNTHIA A. DONNELL, JOHN J. FERRARA, and RANDALL W. POWELL. "Intraoperative Evaluation of Intestinal Ischemia." Southern Medical Journal 84, no. 8 (1991): 966–69. http://dx.doi.org/10.1097/00007611-199108000-00008.

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Tesis sobre el tema "Intraoperative evaluation"

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Bruni, Danilo <1978&gt. "Intraoperative kinematic evaluation with navigation system and postoperative kinematic evaluation with dynamic RSA of total knee arthroplasty." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6450/1/bruni_danilo_tesi.pdf.

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Restoring a correct implant kinematics and providing a good ligament balance and patellar tracking is mandatory to improve clinical and functional outcome after a Total Knee Replacement. Surgical navigation systems are a reliable and accurate tool to help the surgeon in achieving these goals. The aim of the present study was to use navigation system with an intra-operative surgical protocol to evaluate and determine an optimal implant kinematics during a Total Knee Replacement.
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Bruni, Danilo <1978&gt. "Intraoperative kinematic evaluation with navigation system and postoperative kinematic evaluation with dynamic RSA of total knee arthroplasty." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6450/.

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Restoring a correct implant kinematics and providing a good ligament balance and patellar tracking is mandatory to improve clinical and functional outcome after a Total Knee Replacement. Surgical navigation systems are a reliable and accurate tool to help the surgeon in achieving these goals. The aim of the present study was to use navigation system with an intra-operative surgical protocol to evaluate and determine an optimal implant kinematics during a Total Knee Replacement.
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3

Fricke, Christopher. "Ein anthropomorphes Phantom zur Evaluation eines chirurgischen Assistenzsystems mit intraoperativer Bildgebung." Doctoral thesis, Universitätsbibliothek Leipzig, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-113177.

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Zahlreiche chirurgische Assistenzsysteme sind in der klinischen Praxis im Einsatz, um die Genauigkeit und Sicherheit medizinischer Eingriffe zu erhöhen. Die Verwendung von Bildgebungsverfahren durch solche Systeme und die Teilautomatisierung von Prozessen kann einen weiteren Schritt in Richtung höherer Effizienz chirurgischer Interventionen und höherer Patientensicherheit darstellen. Dies stellt jedoch große Herausforderungen an die Systementwickler, welche zur Evaluation dieser Systeme während der Konstruktion geeignete Konzepte und Testmethoden benötigen. Diese Arbeit hat zwei wesentliche Zielsetzungen: Zum einen soll vorgestellt werden, wie zur zielführenden Entwicklung eines duplexsonographisch geführten, semiautomatisch arbeitenden Assistenzsystems zur Gefäßpräparation (ASTMA-System) ein anthropomorphes, physiologisches Phantom anhand zuvor definierter, für die Entwicklung relevanter, Anforderungen konstruiert wurde. Dieses ermöglichte es, die Arbeitsprozesse des Systems und deren Eignung bereits in vitro umfangreich zu testen. Zum andern soll dargestellt werden, wie das Phantom hinsichtlich dieser Anforderungen in einer Studie validiert wurde, um zu gewährleisten, dass dieses für die Systementwicklung erforderliche Eigenschaften aufwies. Dadurch konnten wichtige Informationen über Nutzen und Limitierung der Verwendung des Phantoms und mögliche Probleme des ASTMA-Systems gewonnen werden. Hiermit soll demonstriert werden, wie ein Entwicklungs- und Validierungsansatz für ein Phantom als Testsystem zur Entwicklung und Evaluation ähnlicher komplexer medizintechnischer Systeme mit intraoperativer Bildgebung gestaltet werden kann und welchen Anforderungen solche Phantome genügen sollten. Dies kann dabei helfen, die Systementwicklung zielführend und ressourceneffizient durchzuführen, Probleme bereits während früher Entwicklungsschritte aufzudecken und zu lösen und die Eignung des Verfahrens des entwickelten Systems zu beurteilen.
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Spadola, Sara. "Development and evaluation of an intraoperative beta imaging probe for radio-guided solid tumor surgery." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS257/document.

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Les tumeurs solides relèvent pour un très grand nombre de cas d’un traitement chirurgical. La réussite thérapeutique dépend de la qualité, de la précision de l’exérèse et de la capacité à « visualiser » les résidus tumoraux. Pour ce faire, différents marqueurs sont disponibles sur le marché, notamment radioactifs. Depuis peu, des émetteurs de positrons spécifiques sont disponibles, relançant l’intérêt des techniques de chirurgies radioguidées. Les objectifs de ces travaux ont été la conception, le développement et l’optimisation d’un détecteur de positons pour la localisation de la tumeur avant exérèse et des amas tumoraux résiduels après exérèse. L’avantage de la détection des positons est leur parcours dans les tissus mous, de quelques millimètres. Leur détection est donc plus précise et de meilleure sensibilité (1 à 3 ordres de grandeurs) que la détection de rayonnements gamma. Elle consiste en une technique d’imagerie de contact sur une profondeur de quelques millimètres. Nous avons donc développé 2 prototypes d’imageurs beta+ composés de photomultiplicateurs en silicone (SiPM). Le SiPM sont des photomultiplicateurs présentant les mêmes caractéristiques que les tubes photomultiplicateurs (PMT), tout en étant sensibles à une faible luminosité et de très petite dimension, ce qui est parfaitement adapté à la problématique. La tête de détection du premier prototype est l’association d’un scintillateur organique sur une matrice de SiPM. Cette configuration permet de réduire le bruit dû à la contamination du signal par des rayonnements gamma. La seconde configuration inclus une méthode de soustraction permettant d’améliorer la discrimination du bruit Gamma, sans l’éliminer totalement. Pour ce faire, un assemblage de deux scintillateurs séparés par un guide de lumière est utilisé. Le signal issu des extrémités du scintillateur sont discriminés par l’analyse des différentes distributions de lumière sur la matrice SiPM. Dans les deux cas, le détecteur a été conceptualisé de façon à positionner la tête de détection dans un boitier mécanique comprenant une électronique de lecture miniaturisée. Différents designs de la sonde Beta+, prenant en compte le matériau et l’épaisseur du scintillateur, la fenêtre de propagation lumineuse et le réflecteur optique ont été simulés avec MonteCarlo et mesurés expérimentalement. Ces paramètres ont été optimisés de façon à ce que la sonde offre les meilleures performances en termes de sensibilité de détection des positons, discrimination du bruit Gamma, résolution et distorsion spatiale et uniformité de réponse. L’influence des différents algorithmes de reconstruction sur les performances spatiales ont été étudiées et une première étude préclinique du détecteur sur fantôme a pu être réalisée avec la première configuration de détecteur<br>Extent and accuracy of surgical resection is a crucial step in the therapy of operable solid tumors. The recent availability of specific tumor-seeking agents, positron labeled, renewed the interest for radioguided surgery. The detection of beta particles, due to their short range, allows a more sensitive and accurate tumor localization. Since no mechanical collimation is necessary, it is possible to design probes with a sensitivity increased by one to three orders of magnitude compared to gamma detectors. The beta particle short range also reduces the contamination from distal non-specific radiotracers uptake region, which results in a increased signal-to-noise-ratio. Conversely, beta detection requires sensors to be extremely compact in order to operate in contact with the surveyed tissues in narrow surgical cavities. This thesis takes place in that context. Its aim was to develop an intraoperative positron imaging probe based on the silicon photomultiplier technology (SiPM) and to evaluate its ability to perform in real time tumor localization and post-operative control of the surgical cavity. During this work, two prototypes of intraoperative positron imaging probe were developed. The first detector design is based on the use of a single organic scintillator coupled to an array of SiPMs. This configuration uses a small sensitive volume to reduce the contamination noise coming from the annihilation gamma rays. The second version of the probe implements a subtraction method allowing to improve gamma rejection efficiency. This configuration uses a stack of two scintillators separated by a light guide. The events interacting in the top and the bottom scintillator are discriminated by the analysis of the different light distributions on the SiPM array. Different designs of the positron imaging probes, including scintillator material and thickness, light spreading window and optical reflector, were investigated with Montecarlo simulations and measurements. Their impact on the probes performances were optimized in terms of positron sensitivity, gamma ray rejection efficiency, spatial resolution and bias and uniformity of response. The effect of different reconstruction algorithm on spatial performances was also studied. Finally, the objective of developing an intraoperative probe fully operational in the operating room has been achieved by the design of dedicated miniaturized electronic readouts and mechanical housing. In the last part of my thesis, the evaluation of the single scintillator configuration in a realistic clinical environment was performed with 18F-FDG phantoms. We showed that the low intrinsic sensitivity of this probe to gamma radiations allows to detect tumor volumes as small as 14 mg for uptake properties corresponding to currently available radiotracers and acquisition times compatible with the surgery duration
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Schiefer, Matthew Anthony. "Optimized Design of Neural Interfaces for Femoral Nerve Clinical Neuroprostheses: Anatomically-Based Modeling and Intraoperative Evaluation." Cleveland, Ohio : Case Western Reserve University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=case1237683232.

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Chang, Tou Pin. "Probe-based confocal laser endomicroscopy : an evaluation of its role towards real-time, in vivo, in situ intraoperative applications." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/58324.

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Probe-based confocal laser endomicroscopy (pCLE) is an emerging imaging tool that allows real-time in situ morphological imaging at cellular and subcellular resolution. Its ability to image morphological features of epithelial surfaces of the gastrointestinal tract, biliary tree and respiratory tree rendered differentiation of macroscopically inconspicuous neoplastic and non-neoplastic tissues possible in real-time. However, its role outwith the endoluminal environment for surgical applications has been comparatively sparsely investigated and little reported on its ability to characterise morphological features beyond endoluminal applications. This thesis aims to systematically evaluate the potential pCLE has in visualization of soft tissue morphology in applications pertaining to breast conserving surgery (BCS), parathyroid surgery and thyroid surgery; whereby morphological information regarding cavity wall margin status, tissue-specific entity and viability status of preserved parathyroid glands (PG), respectively, could potentially guide decision-making intraoperatively. The perceptions that pCLE imaging is confined to endoluminal mucosal surfaces, the inability of pCLE to perform image acquisition through sterile transparent sheaths and the inability of surgeons to interpret pCLE images were interrogated using three small feasibility studies. Firstly, in a study carried out on a live, anaesthetised, porcine model, pCLE image acquisition of morphological architecture of soft tissues of the neck e.g. thyroid, lymph nodes, adipose, skeletal and smooth muscles, were shown to be feasible in an intraoperative field and the presence dried blood on the tissue surface did not impede the consistency of morphological architecture visualization. Secondly, we demonstrated that utilization of a sterile transparent sheath did not impede pCLE image acquisition and that the quality of images obtained was comparable to that of without the sheath. Thirdly, we have shown that surgeons with little or no histopathology background were able to acquire the relevant pattern recognition skills to interpret pCLE images following a training session utilizing a validated pCLE morphological classification from colorectal lesions. Building upon these discoveries, we elucidated the potential of pCLE to image neoplastic and non-neoplastic breast morphology with the envisaged application of identifying residual cancerous foci intraoperatively, thereby guiding operative decision making based on real-time breast cavity scanning during BCS. Preliminary ex vivo analyses from 71 freshly excised, acriflavine-stained neoplastic and non-neoplastic tissues samples from 50 breast cancer patients show excellent correlation with histopathology findings. In particular, the glandular structures, adipocytes and collagen fibres of non-neoplastic breast tissues were readily visualised on pCLE images. These were distinguishable from the markedly haphazard and hypercellular architecture exhibited by invasive and non-invasive carcinoma. We developed a classification based on description of pCLE morphology unique to neoplastic and non-neoplastic breast morphology and validated this with 17 histopathologists and surgeons through a systematic pattern recognition training session based on this classification where they were subsequently subjected to objective assessment of 50 pCLE images while blinded to histopathology results. The overall mean accuracy of pCLE image interpretation for histopathologists and surgeons were 94% and 92%, respectively. The overall inter-observer agreement was ‘almost perfect’ (κ=0.81) for the former and ‘substantial’ (κ=0.77), for the latter. We explored the role of intravenous fluorescein sodium (FS) in a prospective, cross-sectional, observational study of 10 patients undergoing BCS where they received between 1.5ml to 3.5ml of intravenous bolus of 10% fluorescein sodium (FS) intraoperatively. Ex vivo analyses of FS-stained breast samples showed that dense fibrous tissue response evoked by infiltrating tumor cells were readily visualised as fluorescent regions with haphazardly arranged, amorphous-looking collagen fibres. However, the lack of nuclei visualization rendered differentiation of neoplastic from non-neoplastic tissues impossible. Nevertheless, the uniformity that FS staining imparts to all tissue layers facilitated creation of longer and meaningful pCLE mosaics. These findings could have important implications where tissue deformation could result in AH-stained layers intermittently fail to coincide with the optical slice imaged at the respective depth. The promising findings of AH-stained breast tissues were found to be potentially relevant in parathyroid surgery. Similar analyses on freshly excised AH-stained parathyroid specimens from 35 patients undergoing parathyroidectomy for primary and secondary hyperparathyroidism showed nest-like arrangements of parenchymal cells, fibrovascular septum and microfollicles of diseased PGs were readily identifiable on CE images and these were consistent with histopathological findings. Following pattern recognition training based on an in-house developed classification system, these were distinguishable from epithelial-lined thyroid follicles and polygonal-shaped adipocytes with mean accuracies of 94% and 93% for histopathologists and surgeons, respectively, and high overall inter-observer agreement, κ=0.82. Where intraoperative identification of diseased PGs presents a challenge especially in multi-glandular disease and re-operative surgery, pCLE could potentially facilitate its recognition. Finally, the role for pCLE imaging of PG vasculature was explored by means of an intraoperative clinical study utilising a sterile-transparent draped pCLE probe on 20 patients undergoing thyroid and parathyroid surgery. Utilising intravenous FS, branched-vessels including capillary networks were readily visualised. Vascular flow on viable glands was depicted by unidirectional, high velocity thrusts of dark-coloured erythrocytes within hyperfluorescent vessels or diffusely in the parenchyma whereas these were absent on non-viable (post-excision) glands. Further analysis on preserved PGs showed that absence of blood flow was found in patients who had sub-optimal post-operative parathyroid function. Given that visual assessment of tissue discolouration is not a reliable method of determining parathyroid gland viability during thyroidectomy, information regarding viability of preserved PGs decisions could potentially aid decisions pertinent to autotransplantation remains challenging. This thesis significantly expands upon the potential intraoperative applications of pCLE. Evidently, these findings are preliminary and warrant further evaluation in well-powered clinical trials. However a systematic approach to investigate the optimal trade-offs between the optical resolution requirements of tissue morphology visualization and deployability of pCLE probe holds the key to successful clinical translation. In particular, evaluation of a robust mechatronically enhanced platform equipped with the flexibility to cater for tissue surface deformation and precision mechanisms that generates accurate spatio-temporal localisation in real-time to aid intraoperative decision making constitutes the next stage of research priorities.
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Fors, Carina. "Evaluation of a Laser Doppler System for Myocardial Perfusion Monitoring." Licentiate thesis, Linköping : Department of Biomedical Engineering, Linköping University, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-9584.

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Kullmann, Marcel [Verfasser], and Günther C. [Akademischer Betreuer] Feigl. "Evaluation of the predictive value of intraoperative changes in motor evoked potentials of caudal cranial nerves for the postoperative functional outcome / Marcel Kullmann ; Betreuer: Günther C. Feigl." Tübingen : Universitätsbibliothek Tübingen, 2014. http://d-nb.info/1196801541/34.

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Vogel, Thomas Jakob Walter [Verfasser], Hubertus A. E. J. [Akademischer Betreuer] [Gutachter] Feußner, and Helmut [Gutachter] Friess. "Umfassende intraoperative Datenerfassung zur Evaluation eines Workflow-Monitoring-Systems / Thomas Jakob Walter Vogel ; Gutachter: Hubertus A. E. J. Feußner, Helmut Friess ; Betreuer: Hubertus A. E. J. Feußner." München : Universitätsbibliothek der TU München, 2017. http://d-nb.info/1141904616/34.

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Blume, Julia Friederike [Verfasser]. "Einfluss der Anwendung chirurgischer Navigationssysteme auf die intraoperative Röntgenbelastung des Operateurs am Beispiel der dorsalen Wirbelsäulenstabilisierung - Evaluation im Rahmen einer Multicenter-Studie der AGROP der DGU / Julia Friederike Blume." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2008. http://d-nb.info/1022941542/34.

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Libros sobre el tema "Intraoperative evaluation"

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Preston, Flanigan D., ed. Perioperative assessment in vascular surgery. Dekker, 1987.

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Shils, Jay L., Sepehr Sani, Ryan Kochanski, Mena Kerolus, and Jeffrey E. Arle. Recording Techniques Related to Deep Brain Stimulation for Movement Disorders and Responsive Stimulation for Epilepsy. Edited by Donald L. Schomer and Fernando H. Lopes da Silva. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780190228484.003.0038.

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Neuromodulation therapies are now common treatments for a variety of medically refractory disorders, including movement disorders and epilepsy. While surgical techniques for each disorder vary, electricity is used by both for relieving symptoms. During stereotactic placement of the stimulating electrode, either deep brain stimulation electrodes or cortical strip electrodes, intraoperative neurophysiology is used to localize the target structure. This physiology includes single-unit recordings, neurostimulation evoked response evaluation, and intracranial electroencephalography (EEG) to ensure the electrode leads are in the optimal location. Because the functional target for the responsive neurostimulator is more easily visualized on preoperative magnetic resonance imaging, intraoperative physiology is used more as a confirmatory tool, in contrast to the more functional localization-based use during electrode placement for movement disorders. This chapter discusses surgical placement of the electrodes for each procedure and the physiological guidance methodology used to place the leads in the optimal location.
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Abatzis, Vaia T., and Edward C. Nemergut. Transsphenoidal/Pituitary Surgery. Edited by David E. Traul and Irene P. Osborn. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190850036.003.0004.

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Patients with tumors of the pituitary gland represent a heterogeneous yet commonly encountered neurosurgical population. Optimal anesthetic care requires an understanding of the complex pathophysiology secondary to each patient’s endocrine disease. Although patients presenting with Cushing’s disease and acromegaly have unique manifestations of endocrine dysfunction, all patients with tumors of the pituitary gland require meticulous preoperative evaluation and screening. There are many acceptable strategies for optimal intraoperative anesthetic management; however, the selection of anesthetic agents should be tailored to facilitate surgical exposure, preserve cerebral perfusion and oxygenation, and provide for rapid emergence and neurological assessment. Postoperatively, careful monitoring of fluid balance and serum sodium is essential to the early diagnosis of diabetes insipidus (DI). DI is most often transient but can require medical therapy. A thorough understanding of the preoperative assessment, intraoperative management, and potential complications are fundamental to successful perioperative patient care and avoidance of morbidity and mortality.
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Cleary, Georgia, and David Spalton. Cataract. Oxford University Press, 2012. http://dx.doi.org/10.1093/med/9780199237593.003.0006.

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The chapter begins by discussing lens anatomy and embryology, before covering the key areas of clinical knowledge, namely acquired cataract, clinical evaluation of acquired cataract, treatment for acquired cataract, intraoperative complications of cataract surgery, infectious postoperative complications of cataract surgery, non-infectious postoperative complications of cataract surgery, congenital cataract, management of congenital cataract, and lens dislocation. Practical skills are then covered, including biometry, local anaesthesia, operating microscope and phacodynamics, intraocular lenses, and Nd:YAG laser capsulotomy. The chapter concludes with three case-based discussions, on age-related cataract, postoperative endophthalmitis, and posterior capsular opacification.
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Flachskampf, Frank A., Mauro Pepi, and Silvia Gianstefani. Transoesophageal echocardiography. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198726012.003.0006.

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Transoesophageal echocardiography (TOE) is a standard echocardiographic technique which uses the oesophagus and upper stomach as echo windows on the heart and thoracic vessels via an endoscopic probe. It is indicated when transthoracic echocardiography is unable or unlikely to answer the clinical question. Typical indications where TOE has a proven superiority include diagnosis of left atrial thrombi, especially in the appendage, morphological evaluation of atrial septal defect, infective endocarditis, mitral valve disease, aortic and prosthetic valves, aortic diseases, and intraoperative monitoring of cardiac surgery or interventions. Indications, technique, typical views, and information to obtain in specific scenarios are presented.
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Starker, Elizabeth Q., Staci N. Allen, and Debnath Chatterjee. Anesthesia for Adolescent Bariatric Surgery. Edited by Kirk Lalwani, Ira Todd Cohen, Ellen Y. Choi, and Vidya T. Raman. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190685157.003.0064.

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The growing epidemic of childhood obesity has resulted in an increasing number of obese children presenting for a wide range of surgical procedures. Bariatric surgery is gaining popularity as a valid treatment option in severely obese adolescents in whom life style interventions are not successful. The perioperative management of these patients pose several anesthetic challenges. The role of the anesthesiologist in the multidisciplinary model is outlined in this chapter. A case-based approach focuses on the preoperative evaluation, intraoperative anesthetic considerations, appropriate drug dosing, and recommended strategies for postoperative monitoring and analgesia. Common complications encountered during these procedures are also discussed.
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Chen, Martin, and Muoi Trinh. Cardiogenic Shock. Edited by Matthew D. McEvoy and Cory M. Furse. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780190226459.003.0010.

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Heart failure and cardiogenic shock are important causes of perioperative morbidity and mortality that require prompt recognition prior to the institution of specialized monitoring and treatment, including the consideration of circulatory assist devices. Patients at risk for perioperative heart failure require special consideration with respect to preoperative evaluation, medical optimization prior to proceeding with surgery, and monitoring throughout the perioperative period. The intraoperative and postoperative management need to be carefully planned in order to avoid the development of acute decompensated heart failure and cardiogenic shock. This chapter reviews the perioperative assessment and management of heart failure patients as well as the management of perioperative cardiogenic shock.
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Burgart, Alyssa M., and Louise K. Furukawa. Perioperative Care of Patients with Epidermolysis Bullosa. Edited by Kirk Lalwani, Ira Todd Cohen, Ellen Y. Choi, and Vidya T. Raman. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190685157.003.0065.

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Inherited epidermolysis bullosa comprises a group of rare, serious conditions affecting multiple organ systems. While generally referred to as a dermatologic condition, any organ with an epithelial surface is affected, leading to serious extracutaneous manifestations. These have wide-ranging implications for anesthetic management, including airway management, vascular access, skin protection, and effective pain control. A successful and safe patient experience requires thoughtful evaluation, communication with a multidisciplinary team, anesthetic planning, intraoperative management, and postoperative care. The scenario in this chapter takes readers through a series of questions to enhance their understanding of the disease and how to address common anesthetic problems. Particular attention is paid to suggested monitor modification.
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Saasouh, Wael, and David E. Traul. Extracranial-Intracranial Bypass. Edited by David E. Traul and Irene P. Osborn. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190850036.003.0010.

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Extracranial-intracranial (EC-IC) bypass is a surgical procedure used to preserve or rescue cerebral circulation when the arterial supply is disrupted. There are several techniques of EC-IC bypass depending on the location of the anomaly and the vessels involved, the purpose being to provide a connection from a patent extracranial artery to an artery within the cranium, thus bypassing the anomalic or thrombosed portion. The mainstay of the anesthetic management of this procedure includes careful preoperative evaluation, meticulous intraoperative management, and close postoperative observation. Intracranial bleeding and hyperperfusion after the procedure are the two principal concerns, and proper management strategies should be in place for all cases.
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Koht, Antoun, and Tod B. Sloan. Neurophysiologic Monitoring. Edited by David E. Traul and Irene P. Osborn. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190850036.003.0028.

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Intraoperative neurophysiologic monitoring is used for monitoring and mapping of neurological structures during surgery and procedures where the neurological structures are at risk. Among the most commonly used techniques are electrophysiologic techniques, which include spontaneous and evoked electromyography, somatosensory evoked potentials, motor evoked potentials, electroencephalography, and auditory brainstem responses. These methods differ in their responses to anesthesia and in their clinical contribution to monitoring because of differing anatomy. Their use in spinal corrective surgery highlights the role of the anesthesiologist during cases when these techniques are utilized. Optimization of anesthesia, position, and physiology provide better monitoring conditions, enhance signal evaluation, and may lead to better neurological outcome.
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Capítulos de libros sobre el tema "Intraoperative evaluation"

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Barnett, R. M. "Intraoperative Evaluation Form (Checklist)." In The Clubfoot. Springer New York, 1994. http://dx.doi.org/10.1007/978-1-4613-9269-9_22.

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Torzilli, Guido, Guido Costa, Fabio Procopio, Luca Viganó, and Matteo Donadon. "Intraoperative Evaluation of Resectability." In Extreme Hepatic Surgery and Other Strategies. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-13896-1_11.

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Cai, Guoping. "Cytological Evaluation During Intraoperative Consultation." In Rapid On-site Evaluation (ROSE). Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21799-0_14.

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Goldman, Martin E., Theresa Guarino, and Bruce P. Mindich. "Intraoperative evaluation of valvular disease." In Developments in Cardiovascular Medicine. Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0907-6_23.

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Yantiss, Rhonda K. "Intraoperative Evaluation of the Gallbladder." In Frozen Section Library: Liver, Extrahepatic Biliary Tree and Gallbladder. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-0043-1_7.

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Townend, Philip J., Rupaly Pande, Henry Bergmann, and Ewen A. Griffiths. "Difficult Laparoscopic Cholecystectomy: Intraoperative Evaluation." In Difficult Acute Cholecystitis. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62102-5_8.

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Orringer, Daniel A., Thomas Chen, Dah-Luen Huang, Martin Philbert, Raoul Kopelman, and Oren Sagher. "A Technical Description of the Brain Tumor Window Model: An In Vivo Model for the Evaluation of Intraoperative Contrast Agents." In Intraoperative Imaging. Springer Vienna, 2010. http://dx.doi.org/10.1007/978-3-211-99651-5_41.

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Martin, X. Pablos, G. Vaz, E. Fomekong, G. Cosnard, and C. Raftopoulos. "Intra-operative 3.0 T Magnetic Resonance Imaging Using a Dual-Independent Room: Long-Term Evaluation of Time-Cost, Problems, and Learning-Curve Effect." In Intraoperative Imaging. Springer Vienna, 2010. http://dx.doi.org/10.1007/978-3-211-99651-5_21.

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Marwan, Hisham, Yoh Sawatari, and Michael Peleg. "Intraoperative Evaluation during Orbital-Zygomaticomaxillary Surgery." In Management of Orbito-zygomaticomaxillary Fractures. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-42645-3_7.

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de Lange, Simon. "Diabetes: Preoperative Evaluation and Intraoperative Management." In Anesthesia, The Heart and the Vascular System. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3295-1_1.

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Actas de conferencias sobre el tema "Intraoperative evaluation"

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Lange, Steven R., and Edmond H. Thall. "Intraoperatve Corneal Topographic Measurement Using Phase-Shifted Projected Fringe Contouring." In Ophthalmic and Visual Optics. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/ovo.1992.wa4.

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Interest in corneal topography has increased in recent years as a consequence of developments in corneal surgery. There are commercial corneal measurement systems for office use but no surgical instrument is available. Intuitively, it would seem useful for surgeons to have the capability to monitor changes in corneal shape intraoperatively. Indeed, some authorities have expressed the opinion that intraoperative evaluation of corneal topography would be a significant advance. This paper describes a prototype device for intraoperative measurement of corneal topography and gives preliminary clinical results.
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Mobini, Mina, and Parisa Naraei. "A Review of Intraoperative Surgeries Error Evaluation Methodologies." In 2019 IEEE Canadian Conference of Electrical and Computer Engineering (CCECE). IEEE, 2019. http://dx.doi.org/10.1109/ccece.2019.8861924.

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Liu, Guanyun, Yanzhou Wang, Gang Li, Kevin Cleary, and Iulian Iordachita. "Evaluation of Needle Driver Designs for Robot-Assisted Needle Insertions Under MRI Guidance." In ASME 2022 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/imece2022-96678.

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Abstract This paper presents the evaluation of two detachable MR-Conditional needle driver designs for our 4-degree-of-freedom (DOF) robotic platform for MRI-guided spinal injections. Compared to their predecessor, the new designs open up the possibility of intraoperative needle driver attachment, and in order to evaluate the feasibility of such an approach, force and torque requried during the needle driver attachment process are captured to evaluate which of the two designs are better suited for such purpose. A simulated clinical scenario is also carried out to measure the possible position change of the 4-DOF robot with respect to the patient due to intraoperative tool attachment, thus providing future guidance to the proposed clinical workflow in the framework of body-mounted robotic surgical devices.
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McGuinness-Abdollahi, Zahra, Mohamed A. Thaha, Anthony Ramsanahie, Shafi Ahmed, Panayiotis A. Kyriacou, and Justin P. Phillips. "Intraoperative monitoring of intestinal viability: Evaluation of a new combined sensor." In 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2015. http://dx.doi.org/10.1109/embc.2015.7319545.

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Tanguy, Alain, and Bernard Peuchot. "Video tracking of vertebral displacement for intraoperative evaluation of scoliosis correction." In 1992 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 1992. http://dx.doi.org/10.1109/iembs.1992.5762245.

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De Buck, Stijn, Johan Van Cleynenbreugel, Guy Marchal, and Paul Suetens. "Evaluation of a visual matching registration technique for intraoperative surgery support." In Medical Imaging 2002, edited by Seong K. Mun. SPIE, 2002. http://dx.doi.org/10.1117/12.466952.

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Kissin, MW, KL Snook, GT Layer, et al. "Intraoperative molecular sentinel lymph node analysis with OSNA: multicentre prospective UK evaluation." In CTRC-AACR San Antonio Breast Cancer Symposium: 2008 Abstracts. American Association for Cancer Research, 2009. http://dx.doi.org/10.1158/0008-5472.sabcs-1003.

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Polasek, Katharine H., Matthew A. Schiefer, Gilles C. Pinault, Ronald J. Triolo, and Dustin J. Tyler. "Intraoperative Evaluation of the Spiral Nerve Cuff Electrode for a Standing Neuroprosthesis." In 2007 3rd International IEEE/EMBS Conference on Neural Engineering. IEEE, 2007. http://dx.doi.org/10.1109/cne.2007.369619.

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Kohl, Benjamin A., Sanjian Chen, Margaret Mullen-Fortino, and Insup Lee. "Evaluation and Enhancement of an Intraoperative Insulin Infusion Protocol via In-Silico Simulation." In 2013 IEEE International Conference on Healthcare Informatics (ICHI). IEEE, 2013. http://dx.doi.org/10.1109/ichi.2013.43.

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Madsen, Steen J., Genevieve N. Wu, Rayland Chow, Sung-Yop Kim, and Henry Hirschberg. "Evaluation of a novel gadolinium-based contrast agent for intraoperative magnetic resonance imaging." In Biomedical Optics (BiOS) 2008, edited by Nikiforos Kollias, Bernard Choi, Haishan Zeng, et al. SPIE, 2008. http://dx.doi.org/10.1117/12.760820.

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Informes sobre el tema "Intraoperative evaluation"

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Deng, Chun, Zhenyu Zhang, Zhi Guo, et al. Assessment of intraoperative use of indocyanine green fluorescence imaging on the number of lymph node dissection during minimally invasive gastrectomy: a systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2021. http://dx.doi.org/10.37766/inplasy2021.11.0062.

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Review question / Objective: Whether is indocyanine green fluorescence imaging-guided lymphadenectomy feasible to improve the number of lymph node dissections during radical gastrectomy in patients with gastric cancer undergoing curative resection? Condition being studied: Gastric cancer was the sixth most common malignant tumor and the fourth leading cause of cancer-related death in the world. Radical lymphadenectomy was a standard procedure in radical gastrectomy for gastric cancer. The retrieval of more lymph nodes was beneficial for improving the accuracy of tumor staging and the long-term survival of patients with gastric cancer. Indocyanine green(ICG) near-infrared fluorescent imaging has been found to provide surgeons with effective visualization of the lymphatic anatomy. As a new surgical navigation technique, ICG near-infrared fluorescent imaging was a hot spot and had already demonstrated promising results in the localization of lymph nodes during surgery in patients with breast cancer, non–small cell lung cancer, and gastric cancer. In addition, ICG had increasingly been reported in the localization of tumor, lymph node dissection, and the evaluation of anastomotic blood supply during radical gastrectomy for gastric cancer. However, it remained unclear whether ICG fluorescence imaging would assist surgeons in performing safe and sufficient lymphadenectomy.
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