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Microvascular anastomosis

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https://www.readbyqxmd.com/read/27930679/reconstruction-of-the-foot-and-ankle-using-pedicled-or-free-flaps-perioperative-flap-survival-analysis
#1
Xiucun Li, Jianli Cui, Suraj Maharjan, Laijin Lu, Xu Gong
OBJECTIVE: The purpose of this study is to determine the correlation between non-technical risk factors and the perioperative flap survival rate and to evaluate the choice of skin flap for the reconstruction of foot and ankle. METHODS: This was a clinical retrospective study. Nine variables were identified. The Kaplan-Meier method coupled with a log-rank test and a Cox regression model was used to predict the risk factors that influence the perioperative flap survival rate...
2016: PloS One
https://www.readbyqxmd.com/read/27929602/facial-reanimation-according-to-the-postresection-defect-during-lateral-skull-base-surgery
#2
John P Leonetti, Sahar Nadimi, Sam J Marzo, Douglas Anderson, Darl Vandevender
The vast majority of benign tumors of the cerebellopontine angle, temporal bone, and parotid gland can be successfully resected without permanent injury to the facial nerve. Malignant tumors or recurrent disease may require facial nerve sacrifice, especially if preoperative facial paresis is present. This article will present case examples of the various methods to reconstruct facial animation after lateral skull base resections that require sacrifice of cranial nerve VII, and the associated mimetic facial musculature...
December 2016: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/27919471/microvascular-coupling-devices-neglected-resource-with-a-short-learning-curve
#3
W R Thompson, A Burns, S Endersby, M Nugent
Microvascular couplers have a record of efficiency and efficacy. They have been used in anastomoses in the head and neck in Sunderland since November 2013, where we have investigated the time taken for anastomosis, patency, and cost. We also completed a national survey of the use of couplers in the United Kingdom, in which we recorded the time of anastomosis. The mean (range) time was 4minutes (2minutes 40seconds - 4minutes 10seconds). One flap partially failed. This shows that couplers can save time, they have successful outcomes, and the technique is quick and easy to learn...
December 2, 2016: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/27801401/-perfusion-criteria-of-the-eicma-efficacy-in-patients-with-symptomatic-occlusion-of-the-internal-carotid-artery
#4
V A Lukshin, D Yu Usachev, I N Pronin, A D Akhmedov, E I Shul'ts
AIM: To investigate changes in cerebral perfusion in patients with unilateral internal carotid artery occlusion before and after surgical revascularization of the brain, depending on the clinical efficacy of surgical treatment. MATERIAL AND METHODS: The study included 60 patients with unilateral ICA occlusions who underwent placement of an extra-intracranial microvascular anastomosis (EICMA). All patients underwent a CT perfusion study before and after cerebral revascularization...
2016: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/27789210/a-pilot-study-demonstrating-the-feasibility-of-supermicrosurgical-end-to-side-anastomosis-onto-large-recipient-vessels-in-head-and-neck-reconstruction
#5
Takuya Iida, Hidehiko Yoshimatsu, Takumi Yamamoto, Isao Koshima
In head and neck reconstruction using free flaps, microvascular anastomosis is commonly performed in an end-to-end fashion to relatively sizable arteries including the superficial temporal, facial, and superior thyroid arteries. With the recent developments of less invasive perforator flaps such as the superficial circumflex iliac artery perforator flap, anastomosis of smaller vessels of less than 0.8 mm diameter has become necessary; however, appropriate recipient arteries for end-to-end anastomosis are often absent...
September 28, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27771041/one-versus-two-venous-anastomoses-in-microvascular-lower-extremity-reconstruction-using-gracilis-muscle-or-anterolateral-thigh-flaps
#6
Paul I Heidekrueger, Denis Ehrl, Albrecht Heine-Geldern, Milomir Ninkovic, P Niclas Broer
INTRODUCTION: Free tissue transfers are a highly reliable procedure routinely performed for reconstruction of a wide range of defects. Main complication in free flap surgery is usually venous thrombosis. Many technical controversies exist regarding the technical details of the microvascular anastomosis in order to prevent occurrence of thrombosis and optimize outcomes. We therefore evaluated our results regarding the execution of one versus two venous anastomoses in a variety of free flaps (fasciocutaneous- or muscle free flap) utilized for lower limb reconstruction...
December 2016: Injury
https://www.readbyqxmd.com/read/27769094/a-comparison-of-the-minimal-touch-technique-and-the-eversion-technique-for-microvascular-anastomosis-in-a-rat-model
#7
Collin W Blackburn, Sarah R Vossoughi, Bukola Ojo, Prakash Gorroochurn, Charles C Marboe, Yelena Akelina, Robert J Strauch
Background During microvascular anastomosis, needle placement is facilitated by inserting the tips of the forceps into the lumen of the vessel, rather than grasping and everting the luminal wall, to minimize trauma to the vessel. This study examines whether the vessel wall can be grasped and everted during microvascular anastomosis without compromising surgical outcomes. Methods A total of 20 Sprague-Dawley rats weighing between 252 and 483 g were used. Bilateral anastomoses of the animals' femoral arteries (mean size: 0...
October 21, 2016: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/27765339/erratum-to-microvascular-stent-anastomosis-using-n-fibroin-stents-feasibility-ischemia-time-and-complications-oral-surg-oral-med-oral-pathol-oral-radiol-2016-121-e97-e103
#8
(no author information available yet)
No abstract text is available yet for this article.
November 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/27756552/free-flap-rescue-using-an-extracorporeal-perfusion-device
#9
Andreas M Fichter, Lucas M Ritschl, Andrea Rau, Claudia Schwarzer, Achim von Bomhard, Stefan Wagenpfeil, Klaus-Dietrich Wolff, Thomas Mücke
The warm ischaemia time of microvascular free flaps is limited. Incalculable events, such as lack of adequate recipient vessels or intraoperative medical emergencies, can lead to prolonged ischaemia and potentially to flap loss. In this study, critically perfused ischaemic or congested flaps were temporarily perfused with an extracorporeal perfusion system until anastomosis could be commenced. Temporary extracorporeal perfusion was performed in 8 radial forearm flaps for 147 ± 52 (range 77-237) minutes. Flap perfusion was assessed using Indocyanine Green fluorescence angiography and combined laser Doppler flowmetry and remission spectroscopy...
September 23, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27753100/salvage-arterial-anastomosis-using-a-microvascular-coupler-in-head-and-neck-free-flap-reconstruction
#10
Dane J Genther, Andrew T Day, Kanika Rana, Jeremy D Richmon
No abstract text is available yet for this article.
October 18, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27752208/a-comparative-study-on-microvascular-anastomosis-of-vascularised-free-fibular-flap-with-couplers-and-suturing-in-mandibular-reconstruction
#11
Senthil Murugan, Reena Rachel John, V B Krihnakumar Raja, Ajay Mohan, Lokesh Bhanumurthy
INTRODUCTION: Successful outcome of any vascularised free flap basically depends upon the successful restoration of circulation in the flap after anastomosis. As the flap ischemic time is the significant factor which determines the outcome of any free flaps, due consideration is given to reduce the time for anastomosis for reperfusion. The present study compares and evaluates whether the usage of microvascular couplers with the conventional suturing reduce the ischemic time of the free flaps...
September 2016: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/27704608/direct-thrombectomy-as-a-salvage-technique-in-free-flap-breast-reconstruction
#12
Ki Yong Hong, Lan Sook Chang, Hak Chang, Kyung Won Minn, Ung Sik Jin
BACKGROUND: Breast reconstruction with microvascular free tissue transfer has become a widely used method. Despite a high rate of success, a compromised flap necessitating re-exploration can occur. Here, we introduce direct thrombectomy as a flap salvage technique, and compared the results with conventional thrombectomy. METHODS: A total of 488 patients who underwent breast reconstruction using a free transverse rectus abdominis myocutaneous flap between March 2009 and February 2014 were retrospectively analyzed...
October 5, 2016: Microsurgery
https://www.readbyqxmd.com/read/27697538/relationships-of-comorbidities-and-old-age-with-postoperative-complications-of-head-and-neck-free-flaps-a-review
#13
Kun Hwang, Jin Pyo Lee, Si Yoon Yoo, Hun Kim
The aim of this study was to determine the relationships between free flap complications and old age or comorbidities. In a PubMed and Scopus search, the search terms (1) free flap OR microvascular anastomosis AND (2) elderly OR old age AND (3) complications OR comorbidity OR co-morbidity were used. Among the 62 full-text articles from 241 abstracts, 31 papers without sufficient content were excluded and 10 mined papers were added. Subsequently, 41 papers were reviewed. Overall complication rates of free flap increased significantly with age (p < 0...
September 9, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27687892/the-microsurgical-training-programme-in-gothenburg-sweden-early-experiences
#14
Mihai Oltean, Paolo Sassu, Mats Hellström, Peter Axelsson, Lars Ewaldsson, Anders G Nilsson, Michael Axelsson
OBJECTIVE: Microsurgical techniques are increasingly used in routine surgical practice as well as in biomedical research. The training opportunities at standardised training courses are limited, and no microsurgical training facility or programme existed in Scandinavia before 2013. METHODS: A microsurgery laboratory was set up and two different courses were started, aiming separately at biomedical researchers and surgeons. The course for biomedical researchers teaches basic microsurgical skills such as vessel isolation, cannulation, and arterial microvascular suture under magnification...
August 12, 2016: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/27650118/the-learning-rate-in-three-dimensional-high-definition-video-assisted-microvascular-anastomosis-in-a-rat-model
#15
Dimitra Kotsougiani, Caroline A Hundepool, Liselotte F Bulstra, Delaney M Shin, Alexander Y Shin, Allen T Bishop
Three-dimensional (3D) high definition (HD) video systems are changing microsurgical practice by providing stereoscopic imaging not only for the surgeon and first assistant using the binocular microscope, but also for others involved in the surgery. The purpose of this study was to evaluate the potential to replace the binocular microscope for microarterial anastomoses and assess the rate of learning based on surgeons' experience. Two experienced and two novice microsurgeons performed a total of 88 rat femoral arterial anastomoses: 44 using a 3D HD video device ('Trenion', Carl Zeiss Meditech) and 44, a binocular microscope...
September 8, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27639411/minimally-invasive-neck-dissection-and-free-flap-reconstruction-in-patients-with-cancer-of-the-head-and-neck
#16
D W K Hsu, A Sayan, P Ramchandani, V Ilankovan
We describe our experience of cervical lymphadenectomy with microvascular anastomoses involving levels I to V through a minimally-invasive neck dissection. We retrospectively studied 12 patients who had levels I to IV neck dissection with free flap reconstruction between July 2013 and April 2015 at Poole Hospital (male:female ratio 8:4, mean (range) age 66 (49 - 83) years). The mean (range) operating time was 7 (5 - 8) hours, and the total volume drained from the neck was 105 (60-300) ml. The mean (range) number of harvested lymph nodes was 26 (13-39) from levels I to III, and 33 (20-42) from levels I to IV...
September 14, 2016: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/27633564/effect-of-fibrin-sealant-in-positioning-and-stabilizing-microvascular-pedicle-a-comparative-study
#17
Jeong Tae Kim, Youn Hwan Kim, Sang Wha Kim
INTRODUCTION: Fibrin sealants have had applications in hemostasis, cohesion, and promotion of healing in plastic surgery. In this article, we review cases where fibrin sealant was used to stabilize microvascular pedicles and compared with previous free flaps performed without fibrin sealant. METHODS: Between 2008 and 2010, 62 consecutive patients underwent free tissue transfer for reconstruction; this involved 33 latissimus dorsi perforator flaps, 14 thoracodorsal artery perforator flaps, 9 latissimus dorsi myocutaneous flaps, 3 lateral thoracic artery perforator flaps, and 3 transverse rectus abdominis myocutaneous flaps, used in head and neck reconstruction, lower limb reconstructions, breast reconstructions, and facial palsy reconstruction...
September 16, 2016: Microsurgery
https://www.readbyqxmd.com/read/27542108/form-and-size-matter-increased-risk-of-thrombosis-in-microvessels-with-surgically-created-endothelial-lesions
#18
Thomas Mücke, Constantin Wolff, Monika von Düring, David A Mitchell, Lucas M Ritschl, Andreas M Fichter
Background Atherosclerosis is a known risk factor for flap loss in microsurgery. Several microsurgical techniques, like plaque removal, have been proposed for atherosclerotic vessels, but these techniques often induce intimal injuries. The aim of this study was to investigate the impact of various endothelial defects on the risk of thrombosis in a rat acute intimal injury model. Methods Endothelial defects of various forms and sizes were created in the abdominal aorta of 30 male Wistar rats following a strict protocol...
August 19, 2016: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/27411273/-comparison-of-repair-effect-between-chimeric-anterolateral-thigh-flap-and-series-wound-flaps-for-defect-after-resection-of-oral-and-maxillofacial-cancer
#19
COMPARATIVE STUDY
Heping Yang, Hongwu Zhang, Haidi Chen, Shuxiong Yang, Jun Wang, Dawang Hu
OBJECTIVE: To compare the effectiveness of complex defects repair between using chimeric anterolateral thigh flap and series-wound flaps after resection of oral and maxillofacial cancer. METHODS: After resection of oral and maxillofacial cancer, defect was repaired with chimeric anterolateral thigh flap in 39 patients between January 2011 and July 2014 (chimeric anterolateral thigh flap group); and defect was repaired with series-wound flaps in 35 patients between January 2009 and December 2010 (series-wound flaps group)...
April 2016: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/27376443/use-of-non-absorbable-nasal-packs-as-a-platform-for-microvascular-anastomosis
#20
W S Cho, N Ibrahim, S Varma
No abstract text is available yet for this article.
July 4, 2016: Annals of the Royal College of Surgeons of England
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