Biomaterial Database

[Experimental anti-arrhythmic action of perhexiline]. 1976

S Sánchez-Pérez, and G Pastelín, and F Valenzuela, and R Méndez

The antiarrhythmic action of Perhexiline phosphate, in doses of 3 and 6 mg/kg on various experimental cardiac arrhytmias and on the physiological properties of the atrial myocardium has been studied in the anesthetized dog. Its action in concentrations of 3 and 6 mcg/ml on the transmembrane action potentials in isolated Purkinje fibers has also been analyzed. The activity of perhexiline is comparatively greater in the circus movement atrial flutter and in the arrhythmias caused by ouabain and by barium chloride intoxication than in the atrial tachysystolia caused by the local application of aconitine. Perhexiline prolongs the wave length (refractory period times conduction velocity) of the atrial impulse and depresses atrial excitability. These effects may explain its action on experimental atrial flutter. In isolated Purkinje fibers, perhexiline reduces the maximum velocity of depolarization, the overshoot, the amplitude of the action potential and its duration, measured at 50% of its repolarization phase. The relation of these electrophysiological effects of perhexiline to the genesis of each type of arrhythmia may explain its different type of activity in the experimental models studied.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D010480	Perhexiline	2-(2,2-Dicyclohexylethyl)piperidine. Coronary vasodilator used especially for angina of effort. It may cause neuropathy and hepatitis.	Perhexilene
D010880	Piperidines	A family of hexahydropyridines.
D011199	Potentiometry	Solution titration in which the end point is read from the electrode-potential variations with the concentrations of potential determining ions. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
D001794	Blood Pressure	PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.	Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D002986	Clinical Trials as Topic	Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries.	Clinical Trial as Topic
D004285	Dogs	The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)	Canis familiaris,Dog
D004341	Drug Evaluation	Any process by which toxicity, metabolism, absorption, elimination, preferred route of administration, safe dosage range, etc., for a drug or group of drugs is determined through clinical assessment in humans or veterinary animals.	Evaluation Studies, Drug,Drug Evaluation Studies,Drug Evaluation Study,Drug Evaluations,Evaluation Study, Drug,Evaluation, Drug,Evaluations, Drug,Studies, Drug Evaluation,Study, Drug Evaluation
D005260	Female		Females
D006329	Heart Conduction System	An impulse-conducting system composed of modified cardiac muscle, having the power of spontaneous rhythmicity and conduction more highly developed than the rest of the heart.	Conduction System, Heart,Conduction Systems, Heart,Heart Conduction Systems,System, Heart Conduction,Systems, Heart Conduction