Ejecting deactivation does not affect O2 consumption-pressure-volume area relation in dog hearts

Authors :: Osamu Kawaguchi
Yoichi Goto
Shiho Futaki
Yuichi Ohgoshi
Hitoshi Yaku
Katsuya Hata
Toshiyuki Takasago
Akio Saeki
Hiroyuki Suga
Source :: The American Journal of Physiology. Sept, 1993, Vol. 265 Issue 3, pH934, 9 p.
Publication Year :: 1993
Abstract: A study was conducted to examine how myocardial oxygen consumption (Vo2) is affected by ejection velocity, and to analyze the resistive characteristics of the left ventricle in 13 excised cross-circulated dog hearts. The results reveal that ventricular energetics are influenced by enhanced peak ejection velocity in a manner in which the connection between Vo2 and systolic pressure volume area is unchanged.

Subjects :: Oxygen consumption -- Research
Heart -- Contraction
Biological sciences

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