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Acta Pharmacol Toxicol (Copenh). 1978 Jul;43(1):29-35. doi: 10.1111/j.1600-0773.1978.tb02228.x.

Reduced myocardial blood flow in acute and chronic digitalization.

Acta pharmacologica et toxicologica

E Steiness, N E Bille-Brahe, J F Hansen, N Lomholt, H Ring-Larsen

PMID: 707121 DOI: 10.1111/j.1600-0773.1978.tb02228.x

Abstract

The myocardial blood flow was measured by the 133Xenon disappearance curve from the left ventricular wall following an injection of 133Xenon in the left coronary artery in 8 dogs without digoxin pretreatment and in 8 chronically digitalized dogs. The myocardial blood flow was significantly less (30%) in the digitalized dogs than in the dogs without pretreatment. In the digitalized dogs as well as in those without pretreatment an intravenous injection of digoxin resulted in a further significant decrease of the myocardial blood flow of about 20% and a significant increase of the coronary vascular resistance. The reduced myocardial blood flow both during acute and chronic digitalization is beleived to be of clinical importance.

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