Coronary Vascular Adjustments to Acute Myocardial Ischemia

Moir, Thomas W.

doi:10.1001/archinte.1972.00320050123013

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1976

1982

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Cited by 10 publications

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“…The minor degree of hypoxia provoked smaller changes in myocardial blood flow. This has been demonstrated by others as well (1,2,22,36,46,58,59,73,74). The surprisingly high rise in flow observed by Hellems et at during moderate hypoxia of 10 vol % may be partially explained by the flow measuring technique applied, the nitrous oxide method (16,38,39), which overestimates high flow rates (71).…”

Section: Discussionmentioning

confidence: 65%

Studies on the regulation of myocardial blood flow in man II. Effects of acute arterial hypoxia

Heiß

Töpfer

Barmeyer

et al. 1978

Clinical Cardiology

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Summary:To determine whether adjustment of myocardial blood flow (MBF) , myocardial oxygen consumption (MVOl) and myocardial substrate uptake (MSU) to acute arterial hypoxia is influenced by training effects on the heart, 7 trained and 7 untrained healthy individuals were investigated. MBF (argon method), MV'Ol and MSU of glucose, lactate and free fatty acids were measured at rest during normoxia and two different stages of acute arterial hypoxia: a) 12.82 vol% Ol; b) 8.74 vol% Ol. Measurements were carried out during hemodynamic and respiratory steady state conditions.Myocardial flow and metabolism of athletes were significantly (p

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