S. Z. Stefanov

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Recently assays of glycolytic enzymes and transaminases have significantly expanded the diagnostic possibilities of internal medicine. Thus one may confirm myocardial infarction by serum transaminase activity within the first few hours in at least 95 per cent. of all cases. The testing of these enzymes has also improved the diagnosis of virus hepatitis and(More)
Aortouniiliac stent grafts allow the endovascular treatment of complex anatomy aortoiliac aneurysms. The main drawback is the need for femoro-femoral crossover bypass, with its complications and its patency limitations. However, some authors have shown good results of femoro-femoral crossover bypass in aneurysmal disease. In this article, initial and(More)
Carotid artery injuries with pseudoaneurysm are uncommon but associated with central neurologic dysfunction. We present a case of posttraumatic pseudoaneurysm of the right common carotid artery treated by implantation of a covered stent. A 44-year-old woman with multiple injuries after fall from height presents a small dissection flap of the right common(More)
Systemic venous pressure is elevated in right heart failure, and this elevation may be reflected in pulsatile venous flow when there is significant tricuspid regurgitation. The presence of this systolic reversed flow in the femoral and popliteal veins may result in major difficulties for diagnosis and treatment. We report the case of a patient with signs(More)
The expected path of an open system, which is a big Poincaré system, has been found in this paper. This path has been obtained from the actual and from the expected droop of the open system. The actual droop has been reconstructed from the variations in the power and in the frequency of the open system. The expected droop has been found as a function of(More)
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