PURPOSE Our objective is to clarify the technical points in using the symmetry aortic connector system (ACS) compared with hand-sewing from clinical and angiographic results of the patients who underwent off-pump coronary artery bypass grafting (CABG). METHODS Among 84 patients who underwent CABG from January 2002 to August 2003, 36 off-pump CABGs were performed using at least one saphenous v...

abstract   background: iatrogenic airway injury after endotracheal intubation and tracheotomy remains a serious clinical problem. in this study we reviewed post-intubation and traumatic tracheal stenosis in 47 patients with a special attention to the cause, hense surgical treatment of the stenosis was performed and the results compared with the literatures.   methods: since february 1995 throug...

PURPOSE Coronary artery bypass graft (CABG) surgery represents the standard treatment of advanced coronary artery disease. Two major types of anastomosis exist to connect the graft to the coronary artery, i.e., by using an end-to-side or a side-to-side anastomosis. There is still controversy because of the differences in the patency rates of the two types of anastomosis. The purpose of this pap...

OBJECTIVES We report a comprehensive assessment and validation of a new intraoperative angiography technique. BACKGROUND Technical problems at the site of the distal anastomosis compromise an underappreciated proportion of coronary bypass grafts. The absence of a systematic, validated technique to verify graft patency in the operating room represents a significant breach in quality assurance. M...

Characteristics of blood-flow velocities were investigated at different sites in two types of coronary artery bypass grafts, sequential saphenous vein grafts (SSVG) and internal mammary artery grafts (IMAG). The latter appear to have the longest life span. The patency rate of the side-to-side anastomosis of the SSVG is better than that of the end-to-side anastomosis. The SSVG was anastomosed to...

Surgical correction of aortic coarctation (CoA) has been the standard treatment in infants and adolescents to prevent late consequences related obstruction distal hypoperfusion. Several surgical techniques for CoA repair have traditionally applied. However, complications, including re-CoA pseudoaneurysm formation, are not uncommon. The incidence complications is highly type initial surgery. Her...

We present experimental and computational results that describe the level, distribution, and importance of velocity fluctuations within the venous anastomosis of an arteriovenous graft. The motivation of this work is to understand better the importance of biomechanical forces in the development of intimal hyperplasia within these grafts. Steady-flow in vitro studies (Re = 1060 and 1820) were co...

Twenty-six patients underwent repeat coronary angiography 5--8 years after saphenous vein coronary artery bypass surgery (SVCABG). These patients were selected from the first cohort of 117 patient who had SVCABG because they had obtained essentially complete relief of angina, and because all grafts were patent at initial angiography 11.2 months (mean) after surgery. Of the 39 grafts (1.5 grafts...

BACKGROUND Hemodialysis arteriovenous synthetic grafts (AVG) provide high volumetric blood flow rates shortly after surgical placement. However, stenosis often develops at the vein-graft anastomosis contributing to thrombosis and early graft failure. Two novel fusion proteins, ANV-6L15 and TAP-ANV, inhibit the tissue factor/factor VIIa coagulation complex and the factor Xa/factor Va complex, re...

A54-year-old white woman with a history of hypertension, hyperlipidemia, atrial fibrillation, bicuspid aortic valve, and a previously repaired aortic coarctation in adulthood underwent a computed tomography (CT) scan of the chest to evaluate her surgical repair after an episode of chest pain. Her original repair consisted of a coarctectomy with placement of a side-to-side graft. The CT scan rev...