Acute effects of cilazapril on coronary hemodynamics in patients with renovascular hypertension

F. Magrini, P. Reggiani, G. Fratianni, A. Morganti, A. Zanchetti

Research output: Contribution to journalArticlepeer-review

Abstract

The effects of converting enzyme inhibition on coronary and systemic hemodynamics in the presence of a chronically activated renin-angiotensin system were investigated in five renovascular hypertensive patients with no ECG/echocardiographic evidence of left ventricular hypertrophy. Coronary blood flow (CBF, thermodilution technique), intra-arterial blood pressure. AVO2 difference (coronary sinus), heart rate, and coronary vascular resistance were measured at rest, during isometric exercise (handgrip to 50% of maximal effort for 3 min) before and 60 min after 2.5 mg of oral cilazapril. The drug induced a prompt, significant decrease in mean arterial pressure and a sustained increase in CBF. The performance of handgrip after cilazapril resulted in higher increases in CBF for a given increase in myocardial oxygen requirements. These observations suggest that angiotensin II (Ang II) maintains the ability to alter the control mechanisms of CBF even under long-term conditions and that converting enzyme inhibition reverses the Ang II-induced effects on coronary hemodynamics.

Original languageEnglish
JournalJournal of Cardiovascular Pharmacology
Volume19
Issue numberSUPPL. 5
Publication statusPublished - 1992

Keywords

  • Angiotensin II
  • Cilazapril
  • Coronary circulation
  • Renovascular hypertension

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Pharmacology

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