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Prolene Suture (prolene + suture)
Selected AbstractsLong-term pericardial catheterization is associated with minimum foreign-body responseCATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 2 2007Carlo R. Bartoli BS Abstract Objectives: The goals of this study were to assess the feasibility and to characterize the foreign-body response of a long-term catheter in the pericardium. Background: Long-term access to the normal pericardial space provides opportunities for diagnostic sampling and therapeutic intervention. Methods: After thoracotomy, in 7 anesthetized canines, the pericardium was opened and a 5 French silicone vascular access catheter was advanced 10 cm into the pericardial sac toward the apex of the heart. A hydraulic coronary balloon occluder was implanted (N = 6). Pericardium was sealed with Prolene suture. Catheters were tunneled to the nape of the neck, attached to a subcutaneous vascular access port, and buried in the fascia. Animals underwent multiple experimental coronary artery occlusions across months. At sacrifice, we assessed the histopathological response of pericardium and epicardium to chronically indwelling silicone catheters. Results: Post-mortem examinations were performed at 213 days post-operatively (mean, range = 96,413, N = 6), with one animal maintained for longer-term study. At sacrifice, all catheters were bidirectionally patent and completely mobile in the pericardium without evidence of tissue overgrowth around the intrapericardial segment. Adhesion tissue was found only at the site of catheter entry through the pericardium. Microscopic histopathological examination at catheter entry site, surrounding pericardium, and myocardium revealed minimum chronic inflammation. Conclusions: This subcutaneous system provides dependable, chronic access to the normal pericardial space for drug delivery and sampling. The presence of a chronic silicone catheter in the pericardium does not precipitate clinically significant pathologic changes even after repeated ischemic events. © 2007 Wiley-Liss, Inc. [source] Robotic Replacement of the Descending Aorta in Human CadaverARTIFICIAL ORGANS, Issue 9 2006Norihiko Ishikawa Abstract:, Robot-assisted replacement of the thoracic aorta was performed in a human cadaver. Temporary shunt bypass was established by inserting a left axillary artery catheter and directing it through the aortic arch toward the right femoral artery through the abdominal aorta. The technique utilized the da Vinci surgical system inserted through the 4-cm supramammary working port and two additional thoracoscopic ports. The working port allowed the introduction of an endoscope, endoscopic instruments, and artificial graft and suture materials. The aorta was dissected using the robotic instruments and was clamped with two transthoracic clamps. After transaction of the aorta, a 20-mm polytetrafluoroethylene graft was cut and an end-to-end anastomosis was then performed with running 3-0 Prolene sutures with robotic instruments. The robotic system provides superior optics and allows for enhanced dexterity. Minimally invasive robotic replacement of the descending aorta is an effective procedure and may add benefits for both surgeon and patients. [source] COMBINED ARTERIOVENOUS FISTULA AND VENOUS ANEURYSM FOLLOWING KNEE ARTHRODESISANZ JOURNAL OF SURGERY, Issue 11 2006Robert Coleman We study a case of a 65-year-old woman who developed popliteal arteriovenous fistula (AVF) and venous aneurysm following left knee arthrodesis. Presenting features included left popliteal and calf pain, a tender pulsatile mass posterior to her left knee, popliteal bruit and a thrill at the popliteal fossa and ankle. Left femoral angiography showed an AVF arising from the right tibioperoneal trunk and an aneurysm at the level of the AVF. Findings at open investigation included AVF between the tibioperoneal trunk and the popliteal vein, and a venous aneurysm arising from the popliteal vein opposite the neck of the arteriovenous communication. The aneurysm and fistula were repaired using prolene suture. [source] How we do it: The viability of free mucosal grafts on exposed bone in lacrimal surgery , a prospective studyCLINICAL OTOLARYNGOLOGY, Issue 4 2006S. Mahendran Keypoints ,,To ascertain viability of free mucosal of grafts on bare bone and degree of contracture in vivo. ,,Prospective study to ascertain graft survival where a small piece of mucosa, with a single centrally placed prolene suture for future identification, removed during endoscopic dacrocystorhinostomy (DCR) was replaced to cover exposed bone at the end of the procedure. The presence of the graft and the degree of contracture was assessed endoscopically in outpatients at the second and fourth weeks. ,,All patients who fulfilled the inclusion criteria who underwent DCR in the study period April,October 2002. ,,All the grafts survived intact at 4 weeks after the operation. Grafts underwent up to 20% contracture over this period. ,,Free mucosal grafts survive well when applied to denuded bone in DCR operation. [source] Minimally Invasive Transventricular Implantation of Pulmonary XenograftJOURNAL OF CARDIAC SURGERY, Issue 4 2008Howaida Al Qethamy F.R.C.S., M.D. A number of ingenious techniques have been described for percutaneous aortic and pulmonary valve replacement as well as transventricular aortic valve replacement. We describe a technique for transventricular pulmonary valve replacement utilizing off-the-shelf bovine tissue valve, vascular stents, and simplified delivery system. After median sternotomy with limited exposure of the right ventricle, Contegra 200 pulmonary valve (Medtronic, Inc., Minneapolis, MN, USA) is transfixed inside a CP stent (NuMed, Inc., Hopkinton, NY, USA) using multiple 5/0 prolene sutures. The valve/stent composite is crimped on a Cristal balloon catheter (Balt, Montmorency, France). The valve/stent and the balloon are then introduced via a small purse-string placed at the RVOT. The stent/valve composite is then expanded in the pulmonary valve position. [source] | ||||||||||