Search Results
Results 351 - 400 of 1017
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Ogus N T - - 2001
A 48-year-old male patient having none of the known risk factors for atherosclerosis underwent coronary artery bypass graft (CABG) surgery because of double-vessel coronary artery disease. During the operation, the aorta, both internal thoracic arteries (L/R-ITA), and the femoral artery were sclerotic, and CABG was performed using only saphenous vein ...
Dubois C L - - 2001
Aneurysms or pseudoaneurysms of the native coronary arteries or bypass grafts are uncommon and represent a pathology with high morbidity and mortality. We report the diagnosis of an aneurysm of a saphenous vein coronary artery bypass graft with an atypical presentation and review incidence, modes of presentation, aetiology and proposed ...
Brochado-Neto F C - - 2001
OBJECTIVES: to compare arm and saphenous veins for infrageniculate bypass grafting. DESIGN: prospective non-randomised study. MATERIALS: two hundred patients, of which 197 had ischaemic tissue loss or rest pain. METHODS: two hundred and eleven infrageniculate vein bypass procedures using 176 greater saphenous veins and 35 arm veins. RESULTS: the cumulative ...
Danikas D - - 2001
Saphenous vein patch angioplasty is the preferred method of closure of the arteriotomy site during carotid endarterectomies. A major early complication of the saphenous vein patch is rupture of the patch which can occur within the first few postoperative days. The reported incidence varies from 0.5% to 4%. Patch rupture ...
Molino Lova R - - 2001
Saphenous Veins are described in Anatomy textbooks as superficial veins running in the amorphous fatty layer of the lower limbs. Recent papers have demonstrated the complex fascial relationship of Saphenous Veins with the connective framework of the lower limb hypodermis. The aim of the present paper was to systematically review ...
Amadesi S - - 2001
BACKGROUND: Terazosin and tamsulosin are drugs currently used in the treatment of benign prostatic hypertrophy (BPH). The potency of these two alpha(1) receptor antagonists and that of prazosin to inhibit contractions induced by noradrenaline and the binding of [(3)H]-prazosin in human prostate and four different human arterial and venous vessels ...
Breuninger H - - 2001
BACKGROUND: Although the technique of vein removal with a cryoprobe is both simple and well known, it has not yet been widely accepted. A modified probe now eliminates difficulties in its use. OBJECTIVE: The original probe has a tip that can be cooled with NO2 or CO2 to -85 degrees ...
Lancey R A - - 2001
BACKGROUND: Endoscopic vein harvesting techniques are increasingly used for obtaining conduit for coronary artery bypass surgery. Although they offer advantages in healing over the conventional open technique, concern has been raised regarding the potential for trauma to the vein in the form of intimal disruption which would theoretically predispose to ...
Calafiore A M - - 2001
BACKGROUND: Avoiding aortic side clamping is useful to avoid local particulate embolization. A device that allows a saphenous vein graft to be anastomosed to the aorta without aortic manipulation is clinically evaluated. METHODS AND RESULTS: From July 1999 to March 2000, 17 patients who underwent myocardial revascularization had an aorta-saphenous ...
Couldwell W T - - 2001
Petrous and cavernous sinus carotid artery (CA) aneurysms that are not amenable to clip ligation or endovascular therapy may be successfully treated by a saphenous vein bypass, thereby preserving the patency of the CA. The authors report the unique case of a 47-year-old man with a giant fusiform aneurysm of ...
Ishitobi K - - 2001
Our goal was to evaluate the long-term results of vein bypass grafts for axillary artery occlusion, specifically those placed extra-anatomically to prevent arterial injury in pitchers. With the greater saphenous veins used as the selected conduit, arterial bypass grafts were routed anterior to the pectoralis minor muscle in four baseball ...
Zamboni P - - 2001
OBJECTIVES: to investigate the possibility of the haemodynamic suppression of reflux in the greater saphenous vein (GSV) without any high ligation and/or stripping procedure. DESIGN: prospective study; single group of patients. MATERIALS: forty patients affected by primary chronic venous insufficiency of all clinical classes, with demonstrated duplex incompetence both of ...
Ohara N - - 2001
PURPOSE: This study was a retrospective review of 11 limbs of 10 patients with popliteal artery entrapment syndrome (PAES) treated surgically in a 20-yr period. METHODS: The patients were aged 34.7 +/- 17.4 SEM yr. Arteriographic findings varied, showing medial deviation in two limbs, poststenotic dilatation in four limbs and ...
Davenport A P - - 2001
Saphenous vein graft stenosis is a significant clinical complication for coronary artery bypass patients. Endothelin-1, a peptide synthesised by vascular endothelial cells, is the most potent known vasoconstrictor and has mitogenic properties. Recent advances in our knowledge of endothelin-1 synthesis and endothelin receptor expression and function in normal and atherosclerotic ...
Dabboussi M - - 2001
We report the case of a 52-year-old man who was admitted for atypical thoracic pain 18 years after a saphenous vein bypass graft of the left anterior descending coronary artery. Investigations demonstrated an aneurysm of the middle portion of the vein graft with a fistulous communication to the pulmonary artery ...
Nishimoto M - - 2001
OBJECTIVES: The great saphenous vein graft is known to be less patent than the internal thoracic artery graft. Recently, we reported that chymase-dependent angiotensin II formation plays an important role in the development of intimal hyperplasia in dog grafted veins. In this study we investigated the levels of angiotensin II-forming ...
Eckstein F S - - 2001
Construction of vascular anastomoses by manual suturing is a highly skilled and time-consuming procedure. The St Jude Medical Anastomotic Technology Group has developed a sutureless mechanical anastomosis device, which, when tested in animals, produced anastomoses in less than 3 min and with little training. Here we present the results of ...
Islam M A - - 2001
Treatment of in-stent restenosis in saphenous vein grafts often requires initial debulking, but transluminal extraction catheter (TEC) atherectomy is seldom used for this purpose, and most discussions omit this option. Our experience with 6 episodes of TEC used successfully for saphenous vein graft in-stent restenosis and review of 7 other ...
Souza D S - - 2001
BACKGROUND: Surgical trauma to the saphenous vein, used as a conduit for coronary artery bypass grafting, affects their occlusion rate. This study evaluates the early patency of saphenous vein grafts harvested with a pedicle of surrounding tissue that protects the vein from spasm and trauma. METHODS: Fifty-two patients underwent coronary ...
Merrilees M J - - 2001
BACKGROUND: Matrix proteoglycans versican, biglycan and decorin are important determinants of vessel-wall structure and pathology. Thickened myxoid intimas typical of restenosis and early atherosclerosis are enriched in versican and biglycan, proteoglycans that promote proliferation and migration of smooth muscle cells and bind lipoproteins. In contrast, compact fibrous intimas are characterized ...
Dalrymple-Hay M J - - 2001
Endoscopic harvesting of the long saphenous vein has been introduced to decrease the morbidity of obtaining venous conduit for coronary artery bypass grafting. Herein is described an endoscopic method using carbon dioxide insufflation into the tissues around the vein. This has several advantages; improved vision, no physical retraction required, easier ...
Rodrigus I E - - 2001
BACKGROUND: To investigate the feasability and results of endoscopic vein harvesting (EVH) using the Vasoview Uniport system (Guidant Corporation, Menlo Park,CA). Can this technique be used as a standard technique for vein harvesting in coronary artery bypass surgery (CABG) or is it too time consuming? Do smaller incisions result in ...
Ebersole D G - - 2001
Coronary artery bypass grafting has been a major advance in cardiovascular medicine over the past 30 years. Saphenous venous bypass grafts, however, are prone to develop atherosclerotic disease within several years of the procedure. Unfortunately, percutaneous interventional techniques in saphenous venous bypass grafts are associated with significant risks of distal ...
Latrémouille C - - 2001
Arterial surgery to salvage the lower limb tends to make use of the great saphenous vein, harvested with the subject in the supine position. If this is not possible the small saphenous vein is used, harvested with the subject in the prone position, however this requires a perioperative modification of ...
White C W - - 2001
Although many investigators have evaluated the technical variability of quantitative angiographic techniques used to study atherosclerosis regression in native coronary arteries, few have studied the variability inherent in repeated studies of atherosclerotic saphenous vein grafts. This study describes 2 studies performed during the course of the Post Coronary Artery Bypass ...
De Stefani S - - 2000
Harvesting of the saphenous vein tract by means of leg stripping is proposed in the treatment of Peyronie's disease. The technique of W-shaped saphenous vein after plaque incision to correct severe penile deformity associated with Peyronie's disease is described. Graft material was obtained from the lower saphenous vein by means ...
Pichot O - - 2000
PURPOSE: To assess the role of duplex imaging in defining suitable pathological anatomy for endovenous obliteration and characterizing its treatment outcomes over time. METHODS: Eighteen lower limbs in 17 patients (12 women; mean age 48 years; range 29-74 years) presenting with varicose greater saphenous veins (GSVs) were treated with endovenous ...
MaassenVanDenBrink A - - 2000
BACKGROUND: Eletriptan is a 5-HT(1B/1D) receptor agonist with proven efficacy in the acute treatment of migraine. OBJECTIVE: To assess the craniovascular selectivity of eletriptan and sumatriptan in blood vessels predictive of therapeutic efficacy (human middle meningeal artery) and adverse coronary side effects (human coronary artery and human saphenous vein). METHOD: ...
Zurbrügg H R - - 2000
BACKGROUND: Complete arterial revascularization may be unsafe in patients with a high operative risk. In patients with varicose ectatic veins, the biocompound technique, which uses unsuitable autologous veins, enables the surgeon to influence the bypass graft wall stress levels and diameter. This report summarizes the 3-year patency of 53 patients, ...
Suda Y - - 2000
We describe 2 Kawasaki disease patients with excellent long-term patency of saphenous vein grafts, who underwent coronary artery bypass at age 7 and 9 years, respectively, and demonstrated normal growth during 22 years of follow-up. The grafts showed no deterioration and played an important role in coronary blood supply.
Armstrong J - - 2000
The insertion of vein grafts into the arterial circulation may contribute to vessel wall thickening and accelerated atherosclerosis, a common feature of late vein graft failure. We aimed to develop a model suitable for investigation of the effects of altered haemodynamics on human saphenous vein following its implantation into the ...
Mavromatis K - - 2000
Exposure to the arterial hemodynamic environment is thought to be a potential trigger for the pathological remodeling of saphenous vein grafts. Using matched pairs of freshly isolated human saphenous vein, we analyzed the early effects of ex vivo hemodynamic conditions mimicking the venous (native) compared with arterial (graft) environment on ...
Nelson P R - - 2000
PURPOSE: To report the early results of endovascular in situ saphenous vein bypass (EISVB) using side branch coil occlusion. METHODS: Between September 1997 and November 1998, 25 patients (15 men; mean age 70.9 years, range 53-85) with lower limb ischemia were treated with endovascular femorodistal bypass. The saphenous vein was ...
Fremes S E - - 2000
The use of an internal thoracic artery rather than a saphenous vein graft for left anterior descending coronary artery bypass is associated with improved long-term outcome. Hence, expanded use of arterial conduits for other coronary targets has been advocated. The radial artery possesses a number of anatomic features that are ...
Cisowski M - - 2000
INTRODUCTION: Saphenous vein is routinely harvested using one or a few long continuous skin incisions. This method is associated with typical healing complications such as oedemas, pain, necrosis, what often restricts proper rehabilitation. An alternative minimally invasive techniques may decrease these complications. MATERIAL AND METHODS: This prospective randomised trial compared ...
Lutz M E - - 2000
A 77-year-old man was referred with a 5-year history of an intermittently painful, nonhealing right medial ankle ulcer. The ulcer had not responded to multiple treatment modalities, including Unna boots, compression therapy, sclerotherapy, and split-thickness skin grafting. The past medical history was significant for a deep venous thrombosis in the ...
Belli G - - 2000
Primary percutaneous intervention for acute occlusion of a native coronary artery may be complicated by distal embolization of plaque or thrombotic debris, with infarct extension. We tested the clinical application of a new therapeutic strategy combining maximal antiplatelet therapy, with glycoprotein IIb/IIIa inhibition, and adjunctive mechanical protection from distal embolization ...
Lehmann A - - 2000
Endoscopic harvest of saphenous vein graft for coronary artery bypass grafting decreases leg wound complications compared with traditional longitudinal incision. A case of pneumoperitoneum secondary to endoscopic harvest of saphenous vein using insufflation of carbon dioxide is reported. Hypercarbia, increased peak airway pressure, but no significant changes of hemodynamics, or ...
Faries P L - - 2000
Various alternative conduits have been used for lower extremity revascularization when an adequate ipsilateral greater saphenous vein is absent. This study compared the effectiveness of all-autogenous multisegment arm vein bypass grafts with that of composite grafts composed of combined prosthetic and autogenous conduits. One hundred fifty-three lower extremity revascularization procedures ...
Golledge J - - 2000
OBJECTIVES: expression of leukocyte adhesins and proteins controlling thrombosis is likely to be an important determinant of graft patency early following vein bypass. We have previously demonstrated rapid increase in endothelial ICAM-1 and nitric oxide synthase (eNOS) concentrations in human saphenous vein exposed to arterial flow. The aim of this ...
Browning N - - 2000
Forty lower limb bypasses using arm veins were performed on 37 patients. The indications for surgery were limb threat in 50% of cases, graft failure in 33%, aneurysms in 10% and claudication in 7%. Saphenous veins were absent because of prior use in 73% of cases, and because they were ...
Rinia-Feenstra M - - 2000
BACKGROUND: Since surgical techniques affect the functional properties of the vessel wall, the present study investigated the influence of minimally invasive harvesting techniques on the vascular reactivity of the saphenous vein. METHODS: Saphenous vein remnants were obtained after aortocoronary bypass operation from patients subjected to conventional (n = 6), mediastinoscope-assisted ...
Nayak B B - - 2000
Cross sections (n = 372) of human long saphenous veins (n = 12) from unsalvageable fresh above knee amputation specimens brought to a trauma centre in a large metropolitan hospital were studied. The veins were harvested longitudinally with an amount of soft tissue equivalent to the diameter of the vein ...
Wang A Y - - 2000
Aortocoronary saphenous vein bypass grafts undergo structural alterations within the arterialized vein, resulting in graft stenosis and failure. Areas of the acellular intima contribute to fissuring, cracking and ulceration, while areas of the media become highly vascular but thinned. This study aimed to examine the ultrastructural features of cell death, ...
Alameddine A K - - 2000
Besides quality, the length of the greater saphenous vein dictates the feasibility of vein bypass grafts in femorodistal popliteal or tibial revascularization. A simple and effective technique of lengthening the greater saphenous vein is described that allows the use of the laterofemoral cutaneous vein in continuity. This technique can be ...
Mitchell M B - - 2000
Late failure of saphenous vein aortocoronary bypass grafts is predominantly due to vein graft atherosclerotic disease. Rarely, saphenous vein aortocoronary bypass grafts undergo aneurysmal degeneration. We report a case of a giant true aneurysm of a saphenous vein aortocoronary bypass graft producing right heart failure from main pulmonary artery compression.
Bruce C J - - 2000
OBJECTIVES: To evaluate a quantitative model of restenosis in patients with vein graft disease undergoing percutaneous transluminal coronary angioplasty (PTCA) or directional coronary atherectomy (DCA). BACKGROUND: A quantitative relationship between acute gain and late loss has been developed to describe the late changes in lumen dimension after native vessel coronary ...
Gu Y D - - 2000
To devise a new classification of vascular variations in second toe transfer we analyzed the anatomic details of the first dorsal metatarsal artery in 304 cases of second toe transplantation and the venous structure in 200 cases. According to location, the arterial vascularity was classified as superficial (18% of cases), ...
Corcos L - - 2000
OBJECTIVE: To verify some of the previous findings of venous valves described in the literature, their pathophysiological significance and clinical implications. MATERIALS AND METHODS: The elementary components of 65 proximal valves of the long saphenous vein and their interrelationships were subjected to histopathological examination. Valves were taken from patients subjected ...
Griffith G L - - 2000
BACKGROUND: Vein trauma after saphenectomy by endoscopic or longitudinal techniques may influence the progression of medial and intimal hyperplasia and ultimately affect graft patency. This study compared the histologic characteristics of saphenous veins after endoscopic and longitudinal harvest. METHODS: One hundred seventy patients who underwent elective coronary artery bypass grafting ...
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