[Intravascular leiomyomatosis presenting as a right atrial mass].

Introduction: Intravenous leiomyoma is a peculiar, rare tumour that originates from the myomatous uterus, grows into the lumina of veins and, through the inferior vena cava, may extend to the right heart cavity. The intracardial tumour causes severe cardiovascular symptoms and may be fatal.

Case Report: The symptoms of the 45-year-old woman consisted of chest discomfort, dizziness, and short periods of unconsciousness, which occurred during vacuum-cleaning when she bent forward.

[Surgical treatment of ascending aortic aneurysm].

Despite of its low incidence ascending aortic aneurysm is an extremely important disease due to its continuous life threatening feature. In spite of advanced diagnostic and surgical and anesthetic methods--developed in the last decade--aneurysm operations have high mortality rate particularly in cases of complications such as rupture or dissection (30-45%). Author discusses data of 55 patients operated on from 1994 to 2001.

[Analysis of the stable metabolite of endothelium-derived nitric oxide of internal mammary artery bypass grafts at the venous drainage system of the recipient coronary artery. Morphologic implications and consequences].

Introduction: The internal mammary artery's endothelium continuously produces nitric oxide in a large quantity resulting in local and downstream vasodilatation, inhibition of platelet aggregation and in the tunica media prevents smooth muscle cell proliferation.

Objective: The aim of this study was to measure the concentration of the internal mammary artery bypass graft's endothelium derived nitric oxide's stable metabolite, (nitrite) at the venous drainage site (great cardiac vein) of the recipient coronary artery (left anterior descending), and to prove that the change of the biochemical milieu provides morphological stability (vasodilation and lack of atherosclerosis) in the recipient coronary artery based on recoronarographies.

Method: Authors investigated the levels of endothelium derived nitric oxide in intraoperative settings of 50 off pump, partly heparinized coronary bypass surgery cases sampling from the internal mammary free cut end flow (81.