Search Results
Results 301 - 350 of 1041
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Williams Matthew L - - 2004
Saphenous vein graft (SVG) aneurysms are a rare complication of coronary artery bypass graft surgery. Patients in whom these aneurysms form a fistula with either a cardiac chamber or mediastinal vessel are even more uncommon and present a difficult diagnostic and therapeutic challenge. We present a patient with SVG aneurysms ...
Rogers Campbell - - 2004
BACKGROUND: Distal embolization of plaque particulate liberated during stenting may cause periprocedural complications. The number, size, and volume of debris released during stenting, however, have not been quantified, rendering embolic protection approaches empiric. We used a novel method of microparticle size assessment to measure volume and characterize individual sizes of ...
Gaudino Mario - - 2004
BACKGROUND: The angiographic patency of composite Y internal thoracic artery-saphenous vein grafts has not been investigated in detail. METHODS: Twenty-five patients who received composite Y internal thoracic artery-saphenous vein grafts had control angiography and vasoactive challenges with serotonin, acetylcholine, and isosorbide dinitrate at a mean of 2.5 +/- 1.2 years ...
Davis Zev - - 2004
OBJECTIVES: We determined the long-term patency rates of coronary artery grafts with endoscopically harvested saphenous veins. METHODS: Patency rates were established in 51 patients with 130 distal saphenous vein grafts using contrast-enhanced electron beam computed tomography at 3.74 +/- 0.65 years after coronary artery bypass grafting. A similar group of ...
Dandekar Uday - - 2004
OBJECTIVE: To highlight an uncommon problem of heparin induced thrombocytopenia after coronary artery bypass operation. METHODS: We report the case of a 59-year-old man who suffered severe type II heparin induced thrombocytopenia (HIT) after coronary artery bypass operation. He experienced extensive skin necrosis at sites of saphenous vein harvesting, which ...
Ho Paul C - - 2004
Percutaneous intervention of saphenous vein graft (SVG), especially those with heavy atherothrombotic load, presents high risk for distal embolization and no-reflow. Using the distal filters alone may occasionally be disadvantageous because of the large debris burden and the inability to assess the underlying culprit lesions and vessel size accurately. We ...
Katariya Kushagra - - 2004
BACKGROUND: We report our early experience with the Symmetry Aortic Connector (St. Jude Medical, St. Paul, MN) used for sutureless proximal aortosaphenous vein graft anastomoses without any cross clamp during coronary bypass procedures. METHODS: Between November 2001 and August 2002, 206 saphenous vein to aorta proximal anastomoses were created in ...
Mayglothling Julie - - 2004
True aneurysms of aortocoronary saphenous vein bypass grafts are a relatively rare complication of bypass surgery, but because the complications of thrombosis, embolization, or rupture are potentially fatal, this condition requires immediate surgical intervention. We describe a 78-year-old man who had undergone coronary bypass 15 years previously and who presented ...
Fuertes Jorge - - 2004
We describe a percutaneous intervention performed over the proximal anastomoses of an aortocoronary saphenous vein graft that had been attached to the aorta 3 months before with the St. Jude Medical Symmetry Aortic Connector System. Technical aspects of procedure are discussed, and the experience previously reported in the literature related ...
Cruz Carlos P - - 2004
Vein diameter measurements using B-mode Doppler ultrasound (US) are used to assess the greater saphenous vein (GSV) for bypass operations; a 2.5-3.0 mm diameter is suggested as a minimum. Preoperative measurements are made while the vein is in the low-pressure venous system. This may not reflect the distended diameter of ...
Petrofski Jason A - - 2004
OBJECTIVE: More than 50% of aortocoronary saphenous vein grafts are occluded 10 years after surgery. Intimal hyperplasia is an initial, critical step in the progression toward occlusion. To date, no clinically relevant large animal models of aortocoronary saphenous vein graft intimal hyperplasia have been fully characterized. Gene therapy holds promise ...
Elias Steven M - - 2004
Advances in minimally invasive vein surgery (MIVS) techniques made during the last decade have decreased operative morbidity, the number and size of incisions, operative time and recovery time. The following MIVS techniques will be discussed: 1. Transilluminated Powered Phlebectomy (TIPP) TriVex. 2. Radiofrequency Ablation Greater Saphenous Vein (RFGSV) Closure. 3.Laser ...
Lin Tzu-Yu - - 2003
OBJECTIVES: Our objectives were to determine the incidence and severity and the time course of the CO(2) embolism during endoscopic saphenous vein harvesting with CO(2) insufflation in coronary artery bypass surgery with transesophageal echocardiography monitoring. METHODS: Four hundred three consecutive patients scheduled for off-pump coronary artery bypass grafting surgery or ...
Verma Subodh - - 2003
OBJECTIVES: We evaluated the effect of the St Jude Medical sutureless anastomotic connector on endothelium-dependent and -independent saphenous vein graft relaxation, as well as on clinical outcomes and graft patency in patients. METHODS: Human saphenous vein grafts were assigned to control or connector groups (loaded for 1 or 5 minutes; ...
Blanco E - - 2004
The objective of this study was to compare patency rates following the repair of popliteal aneurysms according to the site of inflow, material of bypass graft and quality of distal runoff. Seventy bypasses were performed over an 11-year period. Autogenous saphenous vein was used in 53 procedures (75.7%) and prosthetic ...
Gaitonde Rajdeep S - - 2003
Totally occluded saphenous vein grafts are difficult to treat percutaneously with a higher likelihood of distal embolization and slow-flow or no-reflow during percutaneous interventions. The PercuSurge system, which utilizes a distal balloon occlusive device, has been shown to improve clinical outcomes during saphenous vein graft (SVG) interventions. This device may ...
O'Donnell Sean D - - 2003
The in situ bypass procedure for lower extremity limb salvage requires a long continuous incision or multiple interrupted incisions over the greater saphenous vein to ligate the saphenous vein side branches. This can result in wound complications that frequently prolong hospital stay and threaten the graft. In an effort to ...
Min Robert J - - 2003
Readily available noninvasive diagnostic tests now allow physicians to accurately map out abnormal venous pathways and identify sources of reflux. In recent years, minimally invasive alternatives to surgical treatment of saphenous vein reflux, the main contributor to most cases of symptomatic varicose veins, have been developed with promising results.(1-8) The ...
Danner Bernhard C - - 2003
Accurate diagnosis and the surgical therapy is challenging for a mediastinal growth. After coronary artery graft surgery in 1982 and coronary reoperation in 1992, a patient was admitted for right atrial tumor. Echocardiography and MRI scan did not reveal precise tumor delineation. Histological studies proved a saphenous vein graft aneurysm.
Choukroun E M - - 2003
Aneurysms of saphenous vein graft are a known but rare complication of coronary artery bypass grafting (CABG). In this report, we present a case of a 59-year-old man who presented 16 years after CABG, three aneurysms of the saphenous vein graft to the right coronary artery compressing right atrium but ...
Dokucu A I - - 2003
A case of benign lipoblastoma of the retroperitoneum in a 12-month-old boy, presenting as a huge abdominal mass and right lower extremity swelling, was reported. Surgery revealed involvement of the right common iliac artery and vein by lipoblastoma, requiring the sacrifice of both vessels for complete removal of the tumour. ...
Hameed Aamir - - 2003
A 69-year-old male patient had triple-vessel coronary artery bypass graft (CABG) surgery. Three months later, an echocardiogram revealed a 6 x 6 cm cardiac mass. A computed tomography scan of the chest showed a 6 cm mass with contrast enhancement. Cardiac catheterization revealed a pseudoaneurysm of the saphenous vein graft ...
Al-Mulhim Abdulrahman Saleh - - 2003
Fifty-seven limbs (33 patients) with chronic venous ulceration were selected for this study. The criterion for selection was the presence of isolated superficial venous reflux. Long saphenous vein reflux alone was observed in 39 (68.4%) limbs, short saphenous vein reflux alone in 4 (7.0%) limbs, and both long and short ...
Cheng Nye-Jan - - 2003
Treatment of native coronary and saphenous vein graft aorto-ostial stenoses with balloon angioplasty is associated with lower procedural success rates and more complications compared with percutaneous transluminal coronary angioplasty of nonostial stenoses. A patient with totally occluded ostial left anterior descending artery at ostium following aortocoronary bypass developed ostial stenosis ...
Rosseel B - - 2003
In this retrospective study, we analysed 25 guide-wire-assisted Vollmar endarterectomies of an occluded superficial femoral artery. In 96% of the cases, the patient suffered from a Fontaine stage III or IV. After a mean follow-up of 24.7 months, limb salvage is 96%. The patency rate is 84% which is comparable ...
Buxton Brian F - - 2003
OBJECTIVE: This study was undertaken to compare elective angiographic patency and cardiac event-free survival of the radial artery graft with that of the free right internal thoracic artery or saphenous vein during a 10-year period after primary coronary artery bypass surgery. METHODS: This prospective, randomized, single-center trial was conducted on ...
Mack Michael J - - 2003
BACKGROUND: The Symmetry Bypass System Aortic Connector (St Jude Medical, Inc) is a novel device for the construction of sutureless proximal anastomoses. The connector allows attachment of saphenous vein grafts to the aorta without requiring aortic clamping. We report our initial clinical experience with this device. METHODS: In a 2-month ...
Jesuthasan L S Bruno - - 2003
BACKGROUND: A common problem encountered during harvesting of the saphenous vein for coronary artery bypass grafting (CABG) is spasm of the vein. The previous work of the present authors has led to the development of a dilator solution containing glyceryl trinitrate (GTN) and verapamil for use during harvesting of the ...
Neufang A - - 2003
OBJECTIVE: Segmental varicose degeneration of the autogenous greater saphenous vein may limit its use in infrainguinal bypass surgery. Wrapping a PTFE prosthesis around dilated veins has emerged as an option to create externally reinforced vein bypasses. Results regarding graft patency and limb salvage were analyzed. METHODS: Between September 1995 and ...
Georgiev Mihael - - 2003
Giacomini described a vein that now bears his name almost 130 years ago. Subsequent anatomic studies detail his findings but receive inadequate attention in clinical and surgical textbooks. The purpose of this study was to present a summary of the original observations by Giacomini, present our ultrasound scan findings, and ...
Chou Kent H - - 2003
A patient suffering from recalcitrant carpal tunnel syndrome despite 4 surgical decompressions was treated successfully with revision carpal tunnel release, neurolysis, and autogenous saphenous vein wrapping of the median nerve. When he subsequently developed compression of the common digital nerve to the middle finger his carpal tunnel was re-explored and ...
Wong Aaron S L - - 2003
Coronary artery bypass grafting in patients with porcelain aorta and calcified great vessels is associated with a high risk of systemic embolism. Various techniques have been suggested to minimize that risk. We describe the case of a patient with left main coronary disease and a severely calcified ascending aorta, who ...
Pedroso Pedro D - - 2003
The development of Intimal Hyperplasia (IH) in saphenous vein coronary artery bypass grafts (SV-CABG) is responsible for the short-term patency of these grafts. Previous studies of SV-CABG models were performed on rigid anastomotic vessels. However, the effects of compliance, bulging and curvature at the anastomosis on the general hemodynamic field, ...
Klinkert Pieter - - 2003
Controversy still exists whether polytetrafluoroethylene is equivalent to vein as bypass graft material for the above-knee femoropopliteal bypass. Therefore, a prospective randomized trial was performed to compare vein with polytetrafluoroethylene for femoropopliteal bypasses with the distal anastomosis above the knee. Between January 1993 and December 1996, 151 above-knee femoropopliteal bypasses ...
Higuchi Yoshiharu - - 2002
We examined the process of vessel wall thickening in angiographically normal saphenous vein grafts (SVGs) using intravascular ultrasound. Fifteen SVGs were studied in the early stage (within 1 month postoperatively) and 14 SVGs in the late stage (over 6 months postoperatively). Lumen cross-sectional area (CSA) and vessel CSA were measured. ...
Lamfers Martine L - - 2002
Intimal hyperplasia resulting from vascular injury remains a major obstacle in the long-term success of coronary artery bypass grafts. Inhibition of smooth muscle cell (SMC) proliferation using adenoviral gene transfer of cell cycle inhibitors resulted in reduced neointima formation in various animal models. However, little is known about the effect ...
Majeski James - - 2002
Primary venous aneurysms of the proximal saphenous vein are uncommon. They are most frequently seen in patients referred for evaluation and treatment of an inguinal or femoral hernia. Since 1992 five patients with a proximal saphenous venous aneurysm were referred for evaluation and treatment of an inguinal or femoral hernia. ...
Harada Tomohiro - - 2002
Pseudoaneurysm is an unusual complication of coronary artery bypass grafting. Such aneurysms are caused by technical surgical failures, or inflammation of the sternum and mediastinum following sternotomy observed as an early or mid-term complication of cardiac surgery. This case was an 80-year-old man with a piece of artificial rubber pericardium ...
Chiu-Pinheiro Cynthia K - - 2002
BACKGROUND: Gene therapy is a rational approach to prevention of stenosis in saphenous vein grafts used as conduits for coronary artery bypass grafting. To explore this possibility we developed methods for adenoviral-mediated gene transfer to canine saphenous veins. METHODS: During a single procedure, autogenous canine saphenous vein segments were transduced ...
Mahmood Asif - - 2002
To evaluate the efficacy of a modification of the composite sequential femorocrural bypass graft that we adopted in 1985, a retrospective case-note study was undertaken. The grafts combined a prosthetic femoropopliteal section with a popliteal to crural section with autologous vein, linked via a common intermediate anastomosis sited on the ...
Schmidli Jurg - - 2002
The use of a sutureless anastomotic device recently has been reported for the construction of the proximal anastomoses during aortocoronary bypass surgery. In this report, we describe the first reported application of this device for the sutureless aortic anastomosis of an aortosuperior mesenteric artery saphenous vein graft. Sutureless anastomoses reduce ...
Popma Jeffrey J - - 2002
Percutaneous coronary intervention (PCI) of saphenous vein grafts (SVG) and native coronary arteries may be associated with embolization of particulate debris into the distal microcirculation. The FilterWire uses a polyurethane filter bag contained on a radiopaque loop to trap embolic debris during native vessel and SVG intervention. The objectives of ...
KarakaƟ M - - 2002
A few cases of onset of cellulitis after saphenous venectomy for coronary by-pass surgery were first reported by Baddour and Bisno in 1982. We reviewed the dinical characteristics of 31 subjects followed up in our department following onset of manifestations of cellulitis after saphenous venectomy for coronary by-pass surgery. In ...
Takahashi Kenji - - 2002
BACKGROUND: The transdiaphragmatic approach is useful for reoperative coronary artery bypass grafting involving the right coronary artery because it does not require median sternotomy or cardiopulmonary bypass. METHODS: Twenty-one patients underwent coronary artery bypass surgery by the transdiaphragmatic approach. The ratio of first operations to reoperations was 7:14. The cause ...
Roddy Sean P - - 2002
Autogenous vein is the conduit of choice in patients presenting for infrainguinal arterial reconstruction. Venous conduit may be limited because of inadequacy or prior utilization. Our group and others use prosthetics to maximize limb salvage with moderate results. However, in cases where patients present with an isolated popliteal segment that ...
Landry Gregory J - - 2002
Surgical revision to repair stenosis is necessary in about 20% of lower extremity vein grafts (LEVGs). Alternate conduit, especially arm vein, is often necessary to achieve a policy of all-autogenous revisions. Although basilic vein harvest necessitates deep exposure in proximity to major nerves, it typically uses a large vein unaffected ...
Heldman Alan W - - 2002
Percutaneous intervention in thrombus-containing lesions is frequently associated with complications, including distal embolization and no-reflow. In saphenous vein bypass grafts (SVG), friable atheroma and associated thrombus make interventions particularly difficult. Distal protection strategies are in development, but complete protection with removal of all potentially embolic material is challenging. This case ...
Alexander Jason - - 2002
Infrainguinal bypass grafting with greater saphenous vein has proven to be a highly effective procedure with primary 5-year patency and limb salvage rates exceeding 80 per cent. However, because of prior usage or intrinsic venous disease the greater saphenous vein is often not available as a conduit. Numerous studies have ...
Abrishamchian Ahmad R - - 2002
We report the unusual presentation of a saphenous vein graft aneurysm in a 72-year-old man who had undergone coronary artery bypass surgery 15 years prior to admission. The patient presented with a large mass on the anterior wall of the right ventricle and chest discomfort; initially believed to be a ...
Mcevoy F J - - 2002
An experimental venous clot model using the lateral saphenous vein of sheep is described. Eight experimental Suffolk crossbred sheep were used. A mixture of human fibrinogen, in some cases labelled with (125)I, bovine thrombin and homologous whole blood was placed via a catheter into a surgically isolated segment of the ...
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