Influence of isosorbide dinitrate on superior mesenteric artery impedance in humans

D. Voet, M. Afschrift, D. Duprez, M. De Buyzere, F. Barbier

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

In a randomized, double-blind, placebo-controlled crossover study the acute effect of isosorbide dinitrate (ISDN) on the superior mesenteric artery velocity waveform was studied in 10 healthy subjects (mean age 48.2 years) over a 10-minute period. The superior mesenteric artery pulsatility index (PI), which quantifies the blood velocity waveform, increased from the second minute following sublingual administration of 5 mg ISDN (basal PI 4.88±0.32) and reached its upper level (8.22±1.38) from the fourth minute on. In comparison with placebo, the significant rise of PI (second minute) occurred before the significant decrease of systolic blood pressure (ninth minute) and before the significant increase in the heart rate (fourth minute). Diastolic and mean arterial blood pressures remained unchanged. These observations suggest an immediate vasoconstrictive effect of ISDN on the resistance vessels of the vascular bed of the superior mesenteric artery.

Original languageEnglish (US)
Pages (from-to)169-174
Number of pages6
JournalCardiovascular Drugs and Therapy
Volume7
Issue number1
DOIs
StatePublished - Feb 1 1993

Keywords

  • duplex ultrasound
  • mesenteric artery
  • nitrates
  • pulsatility index
  • splanchnic circulation

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