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[The effect of inhalation induction with sevoflurane on left ventricular systolic and diastolic function. A
Haruto Kato1, Noriyuki Sasaoka, Kenji Yoshitani
1Department of Anesthesia, Bell Land General Hospital, Sakai 599-8247.
Background:
The effect of inhalation induction with sevoflurane on left ventricular(LV) function has not been evaluated in adults. We assessed the effect of inhalation induction with sevoflurane on left ventricular systolic and diastolic function in adult patients using transthoracic echocardiography.
Methods:
Twenty-five patients (ASA 1-2 and age < 70 years) received inhalation induction with 5% of sevoflurane. LV systolic function was evaluated by fractional shortening (FS), ejection fraction (EF), rate-corrected mean velocity of circumferential fiber shortening (Vcfc) and a contractile index, LV end-systolic wall stress (ESWS) versus Vcfc relation (ESWS-Vcfc relation). LV diastolic function was assessed by analysis of transmitral flow velocity, peak early diastolic and late diastolic filling velocities (E wave and A wave), E/A ratio and E wave deceleration time (DT).
Results:
After induction, sevoflurane caused significant decreases in FS, EF, Vcfc, ESWS-Vcfc relation, E wave, and A wave, and a significant increase in E/A and maintained DT.
Conclusions:
During inhalation induction with sevoflurane in adult patients, sevoflurane caused negative inotropic effects, but preserved LV diastolic function.
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