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microvascular surgery

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https://www.readbyqxmd.com/read/28812257/robotic-assisted-microvascular-surgery-skill-acquisition-in-a-rat-model
#1
Nicholas S Clarke, Johnathan Price, Travis Boyd, Stefano Salizzoni, Kenton J Zehr, Alejandro Nieponice, Pietro Bajona
Microsurgery is a technically demanding field with long learning curves. Robotic-assisted microsurgery has the ability to decrease these learning curves. We, therefore, sought to assess the feasibility of robotic-assisted microvascular surgery in a rat model, and whether this could be translated into a worthwhile skills acquisition exercise for residents. Twenty-eight rats underwent microvascular anastomosis. Procedures were performed by a trained microvascular surgeon with no robotic experience (n = 14), or a trained robotic surgeon with no microvascular experience (n = 14)...
August 10, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28803448/microvascular-and-lymphovascular-tumor-invasion-are-associated-with-poor-prognosis-and-metastatic-spread-in-renal-cell-carcinoma-a-validation-study-in-clinical-practice
#2
Jens Bedke, Johannes Heide, Silvia Ribback, Steffen Rausch, Michela de Martino, Marcus Scharpf, Andrea Haitel, Uwe Zimmermann, Maik Pechoel, Hussam Alkhayyat, Shahrokh F Shariat, Frank Dombrowski, Arnulf Stenzl, Martin Burchardt, Tobias Klatte, Nils Kroeger
OBJECTIVE: To validate microvascular (MVI) and lymphovascular (LVI) invasion as a prognostic factor in renal cell carcinoma patients (pts.) MATERIALS AND METHODS: Data of patients with RCC who underwent radical or nephron sparing surgery were prospectively collected from three academic centers. The occurrence of MVI and LVI was determined with standard staining protocols by experienced pathologists at the time of diagnosis. The association of MVI and LVI with clinicopathological data, metastatic spread and cancer-specific survival (CSS) was evaluated with Fisher's exact tests, binary logistic regression analyses and univariable and multivariable Cox proportional hazard regression models...
August 13, 2017: BJU International
https://www.readbyqxmd.com/read/28801703/the-long-term-effects-of-bariatric-surgery-on-type-2-diabetes-remission-microvascular-and-macrovascular-complications-and-mortality-a-systematic-review-and-meta-analysis
#3
REVIEW
Binwu Sheng, Khoa Truong, Hugh Spitler, Lu Zhang, Xuetao Tong, Liwei Chen
This systematic review aimed to evaluate the long-term (≥ 5 years) outcomes of bariatric surgery on diabetes remission, microvascular and macrovascular events, and mortality among type 2 diabetes (T2D) patients. Ten articles (one randomized controlled trial and nine cohorts) met the inclusion criteria and were included in this review. Pooled estimates of nine cohort studies showed that surgery significantly increased the diabetes remission (relative risk (RR) = 5.90; 95% CI 3.75-9.28), reduced the microvascular (RR = 0...
August 11, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28801514/bilateral-painful-tic-convulsif
#4
Valentina Fenech, Julian Cassar, Ludvic Zrinzo, Malcolm Vella
'Painful tic convulsif' (PTC) describes the coexistence of hemifacial spasm and trigeminal neuralgia. In this report, we describe a unique presentation of bilateral PTC in a man with bilateral hemifacial spasm and trigeminal neuralgia secondary to neurovascular conflict of all four cranial nerves. Following failed medical and radiofrequency therapy, microvascular decompression of three of the four involved nerves was performed, where the offending vessels were mobilised and Teflon used to prevent conflict recurrence...
August 11, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28797578/accuracy-of-laser-speckle-contrast-imaging-in-the-assessment-of-pediatric-scald-wounds
#5
Robin Mirdell, Simon Farnebo, Folke Sjöberg, Erik Tesselaar
BACKGROUND: Changes in microvascular perfusion in scalds in children during the first four days, measured with laser speckle contrast imaging (LSCI), are related to the time to healing and need for surgical intervention. The aim of this study was to determine the accuracy (sensitivity and specificity) of LSCI on different days after injury in the prediction of healing outcome and if the accuracy can be improved by combining an early and a late measurement. Also, the accuracy of LSCI was compared with that of clinical assessment...
August 7, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28796106/surgical-treatment-of-hemifacial-spasm-caused-by-the-compression-of-internal-auditory-canal-of-facial-nerve
#6
Jin Zhu, Xin Zhang, Hua Zhao, Yin-Da Tang, Ting-Ting Ying, Shi-Ting Li
OBJECTIVE: To make out the way to distinguish the offending vessels compressed the internal auditory canal part of the facial nerve. METHODS: The hemifacial spasm patients were treated of microvascular decompression surgery with neurophysiologic monitoring. The patients were found that the internal auditory canal of the facial nerves was fully compressed, and the records of surgery monitoring were analyzed. RESULTS: All the patients were recorded the delay incubation period in electromyography monitoring, and all patients were hemifacial spasm free finally...
August 8, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28763886/-application-of-neuroendoscope-combined-with-minimal-access-for-elderly-patients-with-idiopathic-trigeminal-neuralgia-in-enhanced-recovery-after-surgery-of-microvascular-decompression
#7
C F Li, N Wu, H Z Wang, J F Zhang, G Q Wu, L Li
Objective: To explore the value of neuroendoscope and minimal-access in enhanced recovery after surgery of microvascular decompression (MVD) for treatment elderly patients with idiopathic trigeminal neuralgia (ITN). Methods: The clinical data of 62 elderly patients with ITN who undergoing neuroendoscope-assisted minimal-access microvascular decompression were analyzed retrospectively, including operative data and follow-up results. Results: In 62 cases, the effective rate was 96.8%, with 88.7% complete cure and 8...
July 18, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28762110/technique-for-rerouting-a-bridging-vein-that-hinders-the-anterior-interhemispheric-approach-a-technical-note
#8
Kenta Ohara, Tomohiro Inoue, Hideaki Ono, Satoshi Kiyofuji, Akira Tamura, Isamu Saito
BACKGROUND: The frontal bridging vein, which is the venous drainage route of the frontal cortex into the superior sagittal sinus (SSS), sometimes poses an obstacle in the anterior interhemispheric approach during surgery for anterior cerebral artery aneurysms. Although severe complications including venous infarction or edema due to damage to the bridging vein are well known, only a few reports have discussed how to avoid venous injury when we must sacrifice the bridging vein to obtain an appropriate surgical field...
August 1, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28758150/diabetes-and-cardioplegia
#9
Brittany A Potz, Laura A Scrimgeour, Jun Feng, Frank W Sellke
Cardiac surgery with cardiopulmonary bypass and cardioplegic arrest is associated with injury to the vasculature and microcirculation leading to coronary microvascular dysfunction, permeability changes and cardiac dysfunction. In the setting of cardiopulmonary bypass with cardioplegia, poorly-controlled diabetes is associated with significant changes in endothelium-dependent and independent vascular dysfunction, vascular reactivity, vascular permeability, protein expression, cell death, coronary/peripheral microcirculation and reduced vasomotor tone leading to hypotension and impaired endothelial function...
June 2017: Journal of Nature and Science
https://www.readbyqxmd.com/read/28754638/microvascular-decompression-for-trigeminal-neuralgia-using-a-novel-fenestrated-clip-and-tentorial-flap-technique
#10
Lain Hermes Gonzalez-Quarante, Fernando Ruiz-Juretschke, Vijay Agarwal, Roberto Garcia-Leal
BACKGROUND: Microvascular decompression (MVD) for neurovascular compression syndromes such as trigeminal neuralgia and hemifacial spasm has been traditionally described as an interposing technique using Teflon. Some alternative interposing materials have been proposed. Additionally, transposing techniques have been increasingly reported in recent years, as an alternative that may have a lower recurrence rate and fewer complications. OBJECTIVE: To describe our experience utilizing a technique consisting of transposition of the superior cerebellar artery using a fenestrated clip and a tentorial flap in patients with trigeminal neuralgia...
July 25, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28749841/the-effect-of-microvascular-decompression-on-hemifacial-spasm-with-atherosclerosis-of-vertebral-artery
#11
Xin Zhang, Ling Xu, Hua Zhao, Yinda Tang, Jin Zhu, Shiting Li
BACKGROUND: Microvascular decompression (MVD) is the most useful treatment for hemifacial spasm (HFS). In patients of vertebral artery (VA) compression of the facial nerve, MVD is often difficult. Many of the VA are obviously atherosclerotic. In this study, the authors retrospectively compared the effect of MVD for HFS associated with the atherosclerosis of vertebral artery (aVA) with that of MVD for HFS with normal vertebral artery (nVA). METHODS: A retrospective study of HFS treated by MVD was conducted between January 2014 and October 2015...
July 26, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28749565/melatonin-suppresses-platelet-activation-and-function-against-cardiac-ischemia-reperfusion-injury-via-ppar%C3%AE-fundc1-mitophagy-pathways
#12
Hao Zhou, Dandan Li, Pingjun Zhu, Shunying Hu, Nan Hu, Sai Ma, Ying Zhang, Tianwen Han, Jun Ren, Feng Cao, Yundai Chen
Platelet activation is a major (patho-) physiological mechanism that underlies ischemia/reperfusion (I/R) injury. In this study, we explored the molecular signals for platelet hyperactivity and investigated the beneficial effects of melatonin on platelet reactivity in response to I/R injury. After reperfusion, peroxisome proliferator-activated receptor γ (PPARγ) was progressively downregulated in patients with acute myocardial infarction undergoing coronary artery bypass grafting (CABG) surgery and in mice with I/R injury model...
July 27, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28742116/sutureless-microvascular-anastomosis-assisted-by-an-expandable-shape-memory-alloy-stent
#13
Noriko Saegusa, Shunji Sarukawa, Kunihiro Ohta, Kensuke Takamatsu, Mitsuhiro Watanabe, Takashi Sugino, Masahiro Nakagawa, Yasuto Akiyama, Masatoshi Kusuhara, Kazuo Kishi, Keita Inoue
Vascular anastomosis is the highlight of cardiovascular, transplant, and reconstructive surgery, which has long been performed by hand using a needle and suture. However, anastomotic thrombosis occurs in approximately 0.5-10% of cases, which can cause serious complications. To improve the surgical outcomes, attempts to develop devices for vascular anastomosis have been made, but they have had limitations in handling, cost, patency rate, and strength at the anastomotic site. Recently, indwelling metal stents have been greatly improved with precise laser metalwork through programming technology...
2017: PloS One
https://www.readbyqxmd.com/read/28740764/multiple-free-flap-reconstructions-of-head-and-neck-defects-due-to-oral-cancer
#14
Yumi Mochizuki, Hiroyuki Harada, Hiroaki Shimamoto, Hirofumi Tomioka, Hideaki Hirai
OBJECTIVE: We studied complications following multiple free flap reconstructions in the head and neck. METHODS: In this cohort, 26 patients (14 men and 12 women) who underwent multiple microvascular free flap reconstructions were included in the study. The reasons for secondary reconstruction were recurrence of tumor (12 cases), necrosis of transferred skin and/or bone (6 cases), reconstruction plate fracture or exposure (4 cases), and others (4 cases). A third reconstruction in 4 cases and a fourth reconstruction in 1 case were performed...
June 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28740635/supratentorial-acute-subdural-haematoma-during-microvascular-decompression-surgery-report-of-three-cases
#15
Kenichi Amagasaki, Yutaka Takusagawa, Kyoko Kanehashi, Shoko Abe, Saiko Watanabe, Naoyuki Shono, Hiroshi Nakaguchi
Supratentoiral haemorrhage during posterior fossa surgery is very rare. Authors report three cases of acute subdural haematoma occurred during microvascular decompression (MVD). Bleeding was observed in the suboccipital surgical area during operation but the origin of the bleeding was not confirmed intraoperatively in all cases. Decompression procedure was completed and immediate postoperative computed tomography revealed supratentorial subdural haematoma. This complication was observed during MVD in healthy young patients with hemifacial spasm in our cases...
February 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28735437/prospective-and-retrospective-study-of-videoconference-telemedicine-follow-up-after-elective-neurosurgery-results-of-a-pilot-program
#16
Melissa Reider-Demer, Pushpa Raja, Neil Martin, Mariel Schwinger, Diana Babayan
Existing literature suggests that use of telemedicine during postoperative appointments can increase access to care and is valued by patients and providers alike. While research examining the clinical equivalency of telemedicine visits for postoperative care has been growing, few studies have reported on telemedicine follow-up after neurosurgery. This study examined if a videoconferencing visit could substitute for an in-person clinic visit for elective neurosurgical cases in the USA. This was a single-center prospective study of patients who underwent elective neurosurgical procedures (aneurysm clipping, resection of cavernous angiomas, resection of arterial venous malformation, microvascular decompression for trigeminal neuralgia and hemifacial spasm, and certain benign brain tumors) and were offered telemedicine follow-up care by an allied health professional during the first 90 days after neurosurgery...
July 22, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28728985/adjuvant-hepatic-arterial-infusion-chemotherapy-is-beneficial-for-selective-patients-with-hepatocellular-carcinoma-undergoing-surgical-treatment
#17
Jui-Hu Hsiao, Cheng-Chung Tsai, Tsung-Jung Liang, Chia-Ling Chiang, Huei-Lung Liang, I-Shu Chen, Yu-Chia Chen, Po-Ming Chang, Nan-Hua Chou, Being-Whey Wang
BACKGROUND: Recurrence rate after curative surgical resection of Hepatocellular carcinoma (HCC) remains high. Postoperative hepatic arterial infusion chemotherapy (HAIC) has been suggested to improve survival. This study is to investigate the efficacy of HAIC in the patients with poor tumor factors such as vascular invasion or multiplicity. METHODS: From 2006 to 2014, 221 patients with HCC undergoing hepatectomy and pathologically staged as ≧ T2 (American Joint Committee on Cancer TNM staging system, 7th edition) were included...
July 17, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28728324/the-chicken-thigh-adductor-profundus-free-muscle-flap-a-novel-validated-non-living-microsurgery-simulation-training-model
#18
Georgios Pafitanis, Yasmine Serrar, Maria Raveendran, Ali Ghanem, Simon Myers
BACKGROUND: Simulation training is becoming an increasingly important component of skills acquisition in surgical specialties, including Plastic Surgery. Non-living simulation models have an established place in Plastic Surgical microsurgery training, and support the principles of replacement, reduction and refinement of animal use. A more sophisticated version of the basic chicken thigh microsurgery model has been developed to include dissection of a type 1-muscle flap and is described and validated here...
July 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28721011/effect-of-picroside-ii-on-hind-limb-ischemia-reperfusion-injury-in-rats
#19
Yiğit Kılıç, Abdullah Özer, Tolga Tatar, Mustafa Hakan Zor, Mehmet Kirişçi, Hakan Kartal, Ali Doğan Dursun, Deniz Billur, Mustafa Arslan, Ayşegül Küçük
INTRODUCTION: Many structural and functional damages are observed in cells and tissues after reperfusion of previously viable ischemic tissues. Acute ischemia reperfusion (I/R) injury of lower extremities occurs especially when a temporary cross-clamp is applied to the abdominal aorta during aortic surgery. Research regarding the treatment of I/R injury has been increasing day-by-day. In this study, we aimed to investigate the effect of picroside II on skeletal muscle of rats experiencing simulated I/R...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28719391/pediatric-and-congenital-hand-transplantation
#20
Sandra Amaral, L Scott Levin
PURPOSE OF REVIEW: We review the approach and challenges associated with pediatric hand transplantation, including new knowledge gleaned from our recent case of bilateral hand-forearm transplantation in an 8-year old child. RECENT FINDINGS: Bilateral heterologous hand-forearm transplantation was performed in a child with a prior kidney transplant in July 2015. The initial surgery necessitated a large team of experts in microvascular surgery, transplant surgery, orthopedics and plastic surgery as well as pediatric anesthesia...
July 14, 2017: Current Opinion in Organ Transplantation
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