747-6 Myocardial Blood Flow in Aortic Regurgitation: Comparison of Global and Regional Blood Flow to Regional Wall Stresses
نویسندگان
چکیده
منابع مشابه
Regional Myocardial Blood Flow
Do oxygen-derived free radicals, generated at the time of reperfusion, lethally injure viable, previously ischemic myocardium, damage vascular endothelium, and impair recovery of postischemic contractile function? To address these issues, 23 anesthetized open-chest dogs underwent 2 hours of left anterior descending coronary artery occlusion followed by 4 hours of reperfusion. Immediately prior ...
متن کاملRegional Myocardial Blood Flow
nary artery disease has provided an intense stimulus for expansion of our present knowledge of the coronary circulation. In the experimental animal laboratory, the electromagnetic flowmeter has proved to be an excellent tool by which one can study dynamic aspects of the coronary circulation. A flowmeter is clearly unsuitable for human investigation; therefore, the search for a simple method of ...
متن کاملRegional Myocardial Blood Flow and Oxygen
sion. Arch Intern Med 133: 916-929, 1974 34. Bohr DF: Angiotensin on vascular smooth muscle. In Angiotensin, edited by IH Page, FM Bumpus. New York, Springer-Verlag, 1974, pp424-428 35. Williams GH, HollenbergNK, Braley LM: Influence of sodium intake on vascular and adrenal angiotensin II receptors. Endocrinology 98: 1343-1350, 1976 36. Fray FCS, Johnson MD, Barger AC: Renin release and pressor...
متن کاملMYOCARDIAL BLOOD FLOW Quantification of regional myocardial blood flow in vivo with H 2150
Using H,15O (half-life = 2.1 min) we demonstrated that a modification of the tissue autoradiographic approach permitted quantitation of myocardial blood flow in open-chest dogs by direct assay of myocardial tissue and that noninvasive estimation with positron-emission tomography (PET) delineated relative myocardial blood flow in intact dogs. ln open-chest anesthetized dogs, the single-pass extr...
متن کاملRegional Cortical Blood Flow
We conducted regional cortical blood flow studies using the xenon-133 clearance technique on 12 volunteers during the administration of 25% and 50% N2O and during baseline conditions (breathing room air or 100% O2). Global cortical blood flow was very highly significantly increased above baseline measures in all subjects by 50% N2O (mean increase 37% above 100% O2 condition). A smaller but stil...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 1995
ISSN: 0735-1097
DOI: 10.1016/0735-1097(95)92253-2