title: Effects of pipecuronium and pancuronium on the isolated rabbit heart.
abstract: We have studied the effects of pipecuronium and pancuronium on myocardial contractility and heart rate in two different animal preparations. Pipecuronium and pancuronium produced no change in isometric contraction of rabbit atria. The chronotropic effects of pipecuronium, pancuronium and vecuronium were investigated using acetylcholine as an agonist in isolated perfused rabbit heart. Pancuronium but not pipecuronium or vecuronium, produced a significant degree of antagonism to the bradycardia produced by acetylcholine.
authors.affiliation: Anaesthetic Department, Royal Free Hospital, Hampstead, London.
authors.forename: R K
authors.initials: RK
authors.lastname: Deam
authors.forename: N
authors.initials: N
authors.lastname: Soni
mesh_terms: D015113:Androstane-3,17-diol / Q000031:analogs & derivatives / Q000494:pharmacology*; D000732:Androstanols / Q000494:pharmacology*; D000818:Animals; D016275:Atrial Function; D006321:Heart / Q000187:drug effects* / Q000502:physiology; D006325:Heart Atria / Q000187:drug effects; D006339:Heart Rate / Q000187:drug effects; D009200:Myocardial Contraction / Q000187:drug effects; D003473:Neuromuscular Nondepolarizing Agents / Q000494:pharmacology*; D010197:Pancuronium / Q000494:pharmacology*; D010477:Perfusion; D017300:Pipecuronium; D010879:Piperazines / Q000494:pharmacology*; D011817:Rabbits; D014673:Vecuronium Bromide / Q000494:pharmacology
chemical_list: D000732:Androstanols; D003473:Neuromuscular Nondepolarizing Agents; D010879:Piperazines; D017300:Pipecuronium; D015113:Androstane-3,17-diol; D014673:Vecuronium Bromide; D010197:Pancuronium