Levant Guvendik

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OBJECTIVE The objective of this study was to determine whether preconditioning coronary artery disease (CAD) patients with HBO(2) prior to first-time elective on-pump cardiopulmonary bypass (CPB) coronary artery bypass graft surgery (CABG) leads to improved myocardial left ventricular stroke work (LVSW) post CABG. The primary end point of this study was to(More)
STUDY OBJECTIVE To determine the impact of the duration of mechanical ventilation on the rate of pulmonary complications in smokers undergoing cardiac surgery. METHODS Retrospective analysis of 2163 patients who underwent elective cardiac surgery between September 1993 and August 1999. Based on a 3-month preoperative smoking cessation, patients were(More)
Of 292 patients, excision of the tumour with replacement by stomach or jejunum was carried out in 216 in whom the lesion was considered operable on both technical and general grounds, intubation was performed in 45 and the remaining 31 were managed without operation. Of the 216 in whom resection was performed, only 20 per cent were free from local spread,(More)
Heart failure (HF) is a chronic condition that is expected to increase in incidence along with increased life expectancy and an aging population. As the incidence of HF increases, the cost to national healthcare budgets is expected to run into the billions. The costs of lost productivity and increased social reliance on state support must also be(More)
Ischemia-reperfusion injury (IRI) occurs following coronary artery revascularization. Reactive oxygen species (ROS) were initially thought to play a role in the pathogenesis of this injury. However, the evidence for this is inconclusive. Recent studies involving ischemic preconditioning have identified ROS as potential mediators for the cardioprotective(More)
BACKGROUND Aortic valve replacement (AVR) is the established treatment for severe aortic stenosis. In response to the long-term results of aortic homografts, stentless porcine valves were introduced as an alternative low-resistance valve. We conducted a randomized trial comparing a stentless with a stented porcine valve in adults with severe aortic(More)
A series of twenty-eight aneurysms of the popliteal artery is reviewed. The cases were collected from the records of two large hospitals each with a unit with a special interest in vascular surgery. They are uncommon--only 1 popliteal aneurysm to every 17 aneurysms of the abdominal aorta--but one-third of our patients had both types of aneurysm present. The(More)
BACKGROUND AND AIM OF THE STUDY The average age of cardiac patients continues to increase. As more octogenarians undergo surgery during the current era, the outcome of valve surgery was investigated to determine the operative risk in these patients. METHODS Among 350 patients aged > or = 80 years who had initial surgery between 1998 and 2006, a total of(More)
We present the case of a 64 year old man, previously of good health, who presented in November 1995 with a short history of presyncope and one witnessed episode of syncope.On admission he was clinically in complete heart block with a ventricular rate of 40 beats/min but had a well maintained blood pressure at 150/80 mm Hg. Auscultation revealed a soft(More)
BACKGROUND Some recent multicenter series have questioned the safety of aprotinin in primary cardiac operations. We report a large, single-center experience with aprotinin therapy in primary cardiac operations and discuss the limitations and potential confounders of current treatment strategies. METHODS We compared myocardial infarction, neurologic(More)