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Effect of perphenazine on electrogram of rat isolated heart

Kateřina Fialová, Jiří Blahák, Marek Motola, Jiří Jarkovský, Jan Mužík, Marie Nováková

. 2011 ; 80 (1) : 87-92.

Jazyk angličtina Země Česko

Typ dokumentu práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/bmc17027128

The aim of this study was to clarify whether administration of antipsychotic perphenazine contributes to the electrophysiological changes of the isolated heart. Fourteen adult male Wistar rats were divided into two groups. Langendorff hearts were perfused with Krebs-Henseleit solution at constant pressure (85 mmHg) and 37 °C (CaCl2, 1.2 mM). The electrogram was recorded by touch-free method. The hearts of the first group were exposed to 3.10-5 M perphenazine, the hearts of the second group to 3.10-8 M perphenazine. The incidence of arrhythmias and the heart rate and QT interval changes were studied on electrogram during 30 min periods of control, the first perphenazine administration, washout, and the second drug administration. Perphenazine administration significantly prolonged QT (p < 0.001) and QTc (p < 0.05) in group 1. In group 2, QT and QTc prolongation was less pronounced (p < 0.05). A number of arrhythmias appeared, from single premature ventricular complexes to more severe ones in both groups. The heart rate changes were non-significant. We conclude that although phenothiazines are still medicaments of choice in certain psychoses, their cardiovascular side effects should be always taken in consideration.

Citace poskytuje Crossref.org

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Literatura

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