Effects of sevoflurane on cardiovascular dynamics, coronary circulation and myocardial metabolism in dogs

Journal of Anesthesia
S AkazawaS Inoue

Abstract

The effects of 2.5% and 5% of sevoflurane anesthesia on hemodynamics and myocardial metabolism were studied in pentobarbital-pancuronium anesthetized dogs. The interaction between nicardipine and 2.5% sevoflurane was also examined. Sevoflurane produced dose-dependent ( P < 0.05 to P < 0.01) decreases in systolic arterial pressure (SAP), heart rate (HR), cardiac index (CI), left ventricular minute work index (LVMWI), maximum rate of rise of left ventricular pressure (LV dP/dt), the time constant of fall in isovolumic left ventricular pressure (T) and systemic vascular resistance (SVR), whereas stroke volume index (SVI) and left ventricular end-diastolic pressure (LVEDP) remained unchanged. Central venous pressure (CVP) was significantly ( P < 0.05) increased at 5%. Myocardial oxygen consumption (MV(O)(2)), and myocardial lactate extraction ratio (ML ext) were decreased in a dose-dependent manner ( P < 0.05). Myocardial oxygen extraction ratio (M(O)(2) ext) was significantly ( P < 0.01) decreased at 5%. The ratio of the left ventricular minute work index to myocardial oxygen consumption (LVMWI/MV(O)(2)), i.e., left ventricular efficiency was significantly decreased only at 5% ( P < 0.05). Coronary sinus blood flow (CSBF) was sign...Continue Reading

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Citations

Mar 1, 1993·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·K NakamuraK Mori
May 1, 1995·Acta Anaesthesiologica Scandinavica·O TakahataH Ogawa
Mar 1, 1996·Veterinary Surgery : VS·H AidaT Fujinaga
Jan 26, 2018·Journal of Applied Physiology·James WongReza Razavi
Mar 1, 1998·Journal of Anesthesia·Kazu-Ichi Yoshida, Akiyoshi Ohsawa

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