By Eberhard Zeitler MD (auth.), Eberhard Zeitler MD (eds.)
This quantity offers a entire account of using glossy imaging systems for the prognosis of arterial and venous ailments. every one imaging modality is individually thought of and functions in person illnesses are then defined due to first-class illustrations. moreover, vascular interventions equivalent to balloon angioplasty, neighborhood thrombolysis, and stent implantation are mentioned and appraised. detailed awareness is dedicated to the matter of radiation burden for sufferers. The authors are all well-known specialists in angiology, phlebology, and interventional radiology.
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Additional info for Radiology of Peripheral Vascular Diseases
Some small modifications to the Dotter technique at that time were the application of proximal side holes on the angioplasty Teflon catheter, a longer tapered catheter which, in the distal femoral popliteal artery, had a smaller, but proximal a larger diameter, the proximal use of a Y-connector for contrast medium injection at the time of guiding and catheter passage, enabling a more sophisticated fluoroscopic control than without contrast medium, and the additional use of Fogarty balloon catheters via the Teflon catheter (ZEITLER 1971; ZEITLER et al.
The correlation is almost linear. Men who at the beginning of the study, smoked 35 or more cigarettes daily, developed POVD four times more than those who had initially been non-smokers. Deviations between the two 5-year periods are attributable to the fact that occasional smokers in the first Basler Study were classified as smokers, whereas in the second study they were regarded as non-smokers (WIDMER et al. 1981). The study was based on the analysis of2630 working men with healthy arteries who, at the outset, were between 35 and 64 years of age.
Studies in the hypercholesteremic or atherosclerotic rabbit aorta suggest that the overall NO production is not reduced, but rather that NO is inactivated by endothelial superoxide radicals leading to diminished concentration of biologically active NO (MINOR et al. 1990). 2 Endothelial Factors Inducing Contraction and Stimulating Proliferation Endothelial cells can also mediate contraction under certain conditions (YANAGISAWA et al. 1988). Endothelium-derived contracting factors include the 21-amino-acid peptide endothelin, prostanoids such as thromboxane A2 or prostaglandin H2 and components of the renin angiotensin system (LUSCHER and VANHOUTTE 1990).