Başkent Üniversitesi Yayınları
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Item Determinants of Coronary Artery Disease in Liver Transplant Candidates(Başkent Üniversitesi, 2010-06) Muderrisoglu, Haldun; Haberal, Mehmet; Aydinalp, Alp; Atar, Ilyas; Bal, Ugur; Aktas, Ayse; Ertan, Cagtay; Atar, Asli; Yildirir, Aylin; Ozin, BulentObjectives: The potential for perioperative and late cardiovascular complications in liver transplant candidates makes careful preoperative risk assessment imperative. We sought to identify the determinants of coronary artery disease in liver transplant candidates. Materials and Methods: Liver transplant candidates with end-stage liver disease who were more than 40 years old and undergoing coronary angiography were retrospectively included in this study. Patients with known coronary heart disease or valvular heart disease were excluded. Symptoms, coronary artery disease risk factors, blood tests, electrocardiogram, echocardiography, treadmill stress test, myocardial perfusion scintigraphy, and coronary angiography results were recorded. A multivariable logistic regression model was used to assess the independent predictors of coronary artery disease. Results: A total of 139 patients (mean age, 52 ± 8; 110 male [79%]) were included in the analysis. Coronary angiography revealed that 13 patients (9.4%) had coronary artery disease. The frequency of diabetes mellitus, stable angina symptoms, positive smoking status, presence of 2 or more risk factors for coronary artery disease, and mean low-density lipoprotein cholesterol levels were significantly higher in patients with coronary artery disease than in patients without coronary artery disease. The electrocardiogram, echocardiography, and noninvasive stress test results were not valuable tools in liver transplant candidates for the diagnosis of coronary artery disease. In multivariate analysis, typical angina symptoms and low-density lipoproteins cholesterol levels appeared to be independent factors that were predictive of coronary artery disease. Conclusions: Typical anginal symptoms and low-density lipoprotein cholesterol levels seem to be the best predictors of coronary artery disease in liver transplant candidates.Item A Novel Technique for Hepatic Arterial Reconstruction in Living-Donor Liver Transplant(Başkent Üniversitesi, 2007-06) Haberal, Mehmet; Sevmis, Sinasi; Karakayali, Hamdi; Moray, Gokhan; Yilmaz, Ugur; Ozcay, Figen; Torgay, Adnan; Aydogan, Cem; Arslan, GulnazObjectives: Arterial reconstruction in patients undergoing living-donor liver transplant is technically difficult because of the small diameter of the vessels in the partial liver graft. In this study, we present our technique for hepatic arterial reconstruction. Methods: Since December 2005, we have performed 54 living-donor liver transplants, which are analyzed retrospectively in this report. In our technique now used at our institution, native and graft hepatic arteries are spatulated from both the anterior and posterior walls to provide a wide anastomosis. Computed tomographic angiography is used to evaluate the vascular anatomy and to measure the diameter of the graft hepatic arteries. Results: Mean follow-up was 7.2 ± 5.5 months (range, 1-17 months). Nine of the 54 recipients died within 4 months of the surgery. At the time of this writing, the remaining 45 recipients (84%) are alive and demonstrating good graft function. In 2 recipients (3.7%) in this series, hepatic artery thromboses developed, which were treated with an interventional radiologic technique. Conclusions: Our arterial reconstruction technique has enabled reconstruction of smaller arteries and arteries of various diameters without an operating microscope. The rate of complications in our patients is similar to that reported in similar individuals.