PMID: 1763833Dec 1, 1991Paper

Metabolic, hemodynamic, and electrocardiographic responses to increased circulating adrenaline: effects of pretreatment with class 1 antiarrhythmics

Angiology
O HansenB Gullberg

Abstract

In order to study the effects of treatment with class 1 antiarrhythmics on the metabolic, hemodynamic, and electrocardiographic responses to adrenaline, 12 healthy volunteers were infused on four occasions, after pretreatment with placebo, disopyramide, mexiletine, and flecainide, respectively, with adrenaline at a rate producing serum adrenaline concentrations comparable with those seen in acute myocardial infarction. After pretreatment with placebo adrenaline caused significant falls in serum potassium, serum magnesium, serum calcium, and serum phosphate and a significant increase in blood glucose. Adrenaline also caused a significant increase in heart rate and systolic blood pressure and a significant fall in diastolic blood pressure. On the electrocardiogram a significant prolongation of QTc duration and a flattening of the T-wave amplitude were seen. Pretreatment with disopyramide had no effect on the hemodynamic response to adrenaline but caused a significant prolongation of Qtc duration before the adrenaline infusion. Pretreatment with mexiletine was associated with a significantly greater fall in serum potassium during adrenaline infusion, and pretreatment with flecainide with a greater fall in serum magnesium, as compa...Continue Reading

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Citations

Jun 1, 1997·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Q A FisherM Yaster
Jun 18, 2010·European Journal of Pharmacology·Jana Kmecova, Jan Klimas
Mar 20, 2015·Hypertension Research : Official Journal of the Japanese Society of Hypertension·Jan KlimasSimon W Rabkin
Jan 7, 2011·International Journal of Cardiology·Laurence GabrielErwin Schroeder
Dec 1, 2001·Anesthesia and Analgesia·M TanakaT Nishikawa

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