Dimitris Maras

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BACKGROUND Various regimens have been proposed for the prevention of postoperative atrial fibrillation, including the use of intravenous and oral amiodarone. The purpose of this study was to determine the effectiveness of a single-day loading dose of oral amiodarone in prophylaxis of atrial fibrillation during the 7 days after coronary artery bypass(More)
This paper describes an intelligent multimedia tutoring system for the passive voice of the English grammar. The system may be used to present theoretical issues about the passive voice and to provide exercises that the student may solve. The main focus of the tutor is on the student's error diagnosis process, which is performed by the student modelling(More)
We report a case of a ruptured para-anastomotic aortic aneurysm treated with implantation of a bifurcated stent-graft. A 72-year-old patient, who had undergone aortobifemoral bypass for aortoiliac occlusive disease 16 years ago, presented with a ruptured para-anastomotic aortic aneurysm. A bifurcated stent-graft was successfully deployed into the old(More)
Introduction The primary aim of educational software is to help students learn. Therefore, evaluation of this kind of software is crucial. Its aim is to test the functionality and usability of the design and to identify and rectify any problems (Dix et al. 1993). In particular, formative evaluation is one of the most critical steps in the development of(More)
INTRODUCTION Central venous catheter placement is an effective alternative vascular access for dialysis in patients with chronic renal failure. The purpose of this study was to evaluate the insertion of central venous catheters for hemodialysis using angiographic techniques in patients with previous multiple catheterizations in terms of efficacy of the(More)
This particular case shows that migration of an initially correctly placed AMPLATZER device can occur especially if open surgery and mechanical manipulation around the occluded vessel are performed. Additionally, when a firstgeneration AMPLATZER plug is fully expanded, the spaces between the wire meshes can remain widely open and flow through the device(More)
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