Alkiviadis Michalis

Learn More
Cardiac myxoma is the most common benign tumor of the heart. It presents with a variety of clinical signs and symptomatology making diagnosis frequently quite a challenge. We review our experience with 41 patients who underwent surgical intervention for cardiac myxoma between 1994 and 2011. All patients' preoperative, intraoperative and postoperative(More)
INTRODUCTION Recent guidelines from the European Society of Cardiology suggest that surgical ablation should be considered in patients with atrial fibrillation (AF) who present for concomitant surgically correctable disease. This is a case-matched study of radiofrequency ablation during concomitant cardiac surgery versus lone surgery on patients with(More)
We are reporting the successful surgical treatment of a 23-year-old female with a giant right coronary artery to coronary sinus fistula. This woman had complaints of chest pain and dyspnea on exertion for few months. Transthoracic echocardiography (TTE) showed a large tortuous right coronary artery and a dilated coronary sinus. Preoperative multi-detector(More)
AIMS Previous reports have demonstrated enhanced myocardial protection and better post-ischaemic recovery using the oxygen free radical scavenger deferoxamine (DEF) during cardioplegia. The aim of this study was to test whether, in patients undergoing coronary artery bypass grafting (CABG), DEF i.v. infusion can reduce reperfusion injury on a short- and(More)
BACKGROUND Although coronary sinus catheter-related injuries (CSCRIs) are rare, they are potentially lethal. The purpose of this study was to evaluate such injuries, the repair methods used, and to identify related risk factors for mortality. METHODS A retrospective review of 10,552 cardiac surgical procedures from 1995 to 2000 in which retrograde(More)
Off-pump coronary artery bypass grafting (CABG) has been recently revived, because cardiopulmonary bypass (CPB) appears to worsen the multiple organ dysfunction after conventional CABG. To evaluate the safety and efficacy of the off-pump CABG in chronic dialysis patients, we compared the perioperative morbidity and mortality between 15 dialysis patients who(More)
To investigate hemolysis after open heart surgery in patients with and without the beta-thalassemia trait, we prospectively studied 85 patients who underwent open heart surgery for various pathologic conditions. Hemoglobin electrophoresis showed that 20 of these patients had the beta-thalassemia trait, whereas the other 65 were normal. To compare the degree(More)
OBJECTIVES Correction of ascending aorta and proximal aortic arch pathology with numerous surgical techniques having been proposed over the years remains a surgical challenge. This study was undertaken to identify risk factors influencing outcome after aortic arch operations, requiring deep hypothermic circulatory arrest (DHCA). METHODS Between 1993 and(More)
Two-dimensional Doppler echocardiography (DE) and intravascular Doppler-tipped guidewire (flowire) have been used to measure flow in aortocoronary conduits at rest and during hyperemia, but they have not been compared. We investigated which flow velocity parameters obtained with these 2 different techniques can predict left internal mammary artery (LIMA)(More)
Thrombocytopenia and thromboembolism(s) may develop in heparin immune-mediated thrombocytopenia (HIT) patients after reexposure to heparin. At the Onassis Cardiac Surgery Center, 530 out of 17,000 patients requiring heart surgery over an 11-year period underwent preoperative HIT assessment by ELISA and a three-point heparin-induced platelet aggregation(More)