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Aortic calve repair

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https://www.readbyqxmd.com/read/23718795/using-acellular-aortic-matrix-to-repair-umbilical-hernias-of-calves
#1
V Kumar, N Kumar, A K Gangwar, A C Saxena
BACKGROUND: Umbilical hernias are a relatively common, possibly hereditary, condition in calves. Acellular aortic matrix (AAM) was evaluated for the repair of umbilical hernias in nine calves. METHODS: Fresh buffalo aorta to be used as a graft was decellularised using 1% sodium dodecyl sulfate and 0.25% trypsin. Under xylazine sedation and local analgesia, the hernial ring was exposed and repaired with the AAM graft using an inlay technique. RESULTS: All animals had an uneventful recovery without clinical signs of wound dehiscence, infection or recurrence of hernias during the 6-month follow-up period...
June 2013: Australian Veterinary Journal
https://www.readbyqxmd.com/read/22733429/the-usefulness-of-near-infrared-spectroscopy-in-the-anesthetic-management-of-endovascular-aortic-aneurysm-repair
#2
Masahiro M Wakimoto, Mamoru Kadosaki, Hirofumi Nagata, Kenji S Suzuki
Near-infrared spectroscopy (NIRS) may be a useful method for monitoring the regional oxygen saturation (rSO(2)) of the lower extremity during endovascular aortic repair. Eighteen patients with thoracic descending and/or abdominal aortic aneurysm were enrolled in this study. NIRS probes were placed bilaterally on the calves. Muscular rSO(2) (mrSO(2)) was monitored every 30 s throughout the operation. In the leg in which the femoral artery was clamped, mrSO(2) values were selected at 3 or 4 points-just before clamping (control value), 30 min after clamping, 10 min after the first declamping, and 10 min after the second declamping following repair of the femoral artery, if necessary...
December 2012: Journal of Anesthesia
https://www.readbyqxmd.com/read/22362620/in-vivo-testing-of-an-intra-annular-aortic-valve-annuloplasty-ring-in-a-chronic-calf-model
#3
J Scott Rankin, Jeff L Conger, Egemen Tuzun, Jo Anna Winkler, Kelly M Harms, L Alan Beavan, Terry Fossum, William E Cohn
OBJECTIVE: To increase applicability and stability of aortic valve repair, a three-dimensional aortic annuloplasty ring has been developed for intra-annular placement. The goal of this study was to test the safety of this device with in vivo implantation in the calf model. METHODS: In 10 chronic calves, the HAART annuloplasty ring was sutured to the aortic valve annulus using cardiopulmonary bypass. The animals were recovered and followed for 1-2 months. Serial echocardiography was used to evaluate valve competence, and contrast aortograms and CT angiograms were obtained in selected animals...
July 2012: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/7563398/preliminary-experience-with-the-endovascular-technologies-bifurcated-endovascular-aortic-prosthesis-in-a-calf-model
#4
W J Quiñones-Baldrich, D H Deaton, R S Mitchell, G Berry, A Piplani, D Quiachon, W H Edwards, W S Moore
PURPOSE: The purpose of this study was to develop a bifurcated endoluminal prosthesis for transfemoral placement in the aortoiliac position with a large-animal model that would simulate human implantation. METHODS: Fifteen calves (160 to 200 kg) underwent bilateral femoral artery exposure and transfemoral placement in the aortoiliac position of a bifurcated Dacron prosthesis, inserted through a 26F sheath with an over-the-bifurcation guide wire to retrieve the contralateral limb and secured proximally and distally with self-expanding attachment systems...
October 1995: Journal of Vascular Surgery
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