Isoflurane and other commonly used anaesthetics do not protect the isolated buffer perfused mouse heart from ischemia-reperfusion injury

Clinical and Experimental Pharmacology & Physiology
Michael GalagudzaGuro Valen

Abstract

1. Some anaesthetic agents such as barbiturates and opioids possess cardioprotective properties in rats, rabbits, dogs and pigs. The purpose of this study was to evaluate the effects of some commonly used anaesthetic agents (pentobarbital, isoflurane and a mixture of midazolam, fentanyl and fluanisone) on the tolerance of the isolated mouse heart to ischaemia-reperfusion injury. 2. The isolated, Langendorff-perfused hearts were subjected to 45 min of global ischaemia followed by 60 min of reperfusion. Left ventricular pressures, heart rate and coronary flow were measured and infarct size was determined using triphenyltetrazolium staining. 3. There were no differences in haemodynamic variables during reperfusion between groups. Infarct size was not influenced by the choice of anaesthesia. 4. None of the anaesthesia protocols exerted significant protective effects on the ischaemic-reperfused isolated mouse heart performance. In mice, isoflurane as well as pentobarbital, opioids and benzodiazepines may be safely used for anaesthesia without a risk of protective side-effects in isolated mouse heart studies.

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Citations

Jan 25, 2013·World Journal of Gastroenterology : WJG·Oleg KornyushinTimur Vlasov

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