Heterogeneous oxygen uptake of the left ventricle
نویسندگان
چکیده
منابع مشابه
Oxygen uptake of the nonworking left ventricle.
Comparisons have been made in the open chest dog of the oxygen usage of the left ventricle whose external work has been reduced to zero by 4 different procedures. The average oxygen usage of the left myocardium/100 Gm./min. is about 2.0 cc. in complete arrest with vagal stimulation or with intracoronary potassium injection; 3.8 cc. in fibrillation; and 3.4 cc. in the empty but beating heart. Th...
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In 10 excised, cross-circulated, isovolumically beating dog left ventricles, we examined the effects of bigeminy, including, paired-pulse stimulation, on cardiac oxygen consumption (Vo2) and evaluated whether the Vo2 versus pressure-volume area (PVA) relation obtained from regularly beating hearts in our previous studies could account for the changes in Vo2 during bigeminies with various coupli...
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In normal hearts, myocardial perfusion is fairly well matched to regional metabolic demand, although both are distributed heterogeneously. Nonuniform regional metabolic vulnerability during coronary stenosis would help to explain nonuniform necrosis during myocardial infarction. In the present study, we investigated whether metabolism-perfusion correlation diminishes during coronary stenosis, i...
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Objective(s): Gestational diabetes increases the risk of congenital heart disease in the offspring, but the molecular mechanism underlying this process remains unclear. Therefore, the current study was conducted to assess the effects of induced gestational diabetes on expression of some involved genes in cardiac hypertrophy in the offspring of diabetic rats.Materials and Methods: Diabetes was i...
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ژورنال
عنوان ژورنال: Okayama Igakkai Zasshi (Journal of Okayama Medical Association)
سال: 1987
ISSN: 0030-1558,1882-4528
DOI: 10.4044/joma1947.99.9-10_1031