[Hemodynamic effects of intravenous administration of ACE inhibitor in prevention of heart failure following coronary artery bypass surgery].

Publisher: Društvo lekara Vojvodine Country of Publication: Serbia NLM ID: 2985249R Publication Model: Print Cited Medium: Print ISSN: 0025-8105 (Print) Linking ISSN: 00258105 NLM ISO Abbreviation: Med Pregl Subsets: MEDLINE

Original Publication: Novi Sad : Društvo lekara Vojvodine

Coronary Artery Bypass*/adverse effects; Angiotensin-Converting Enzyme Inhibitors/*administration & dosage ; Heart Failure/*prevention & control ; Hemodynamics/*drug effects ; Tetrahydroisoquinolines/*administration & dosage; Heart Failure/etiology ; Heart Failure/physiopathology ; Humans ; Infusions, Intravenous ; Ventricular Dysfunction, Left/drug therapy ; Ventricular Dysfunction, Left/etiology ; Ventricular Dysfunction, Left/physiopathology

Introduction: Our study was designed to explore the hemodynamic effects of intravenous administration of ACE-inhibitor quinaprilat in comparison with standard inotropic-vasodilator therapy. Patients with poor left ventricular function following coronary artery bypass (CABG) surgery were examined.
Materials and Methods: Thirty patients with poor left ventricular function (EF<30%) following CABG surgery with use of cardiopulmonaly bypass were examined. Fourty patients were control group. All patients had complete invasive hemodynamic monitoring. The ACE-inhibitor quinaprilat 0.5 mg/h was administered intravenously via infusion pump. The following parameters were analyzed: arterial blood pressure, systemic vascular resistance, pulmonary vascular resistance, heart rate, cardiac output, cardiac index, left ventricular stroke work index and the level of mixed venous oxygen saturation.
Results: The results of our study were as follows: Cardiac output, cardiac index and left ventricular stroke work index were significantly increased in comparison to the control group. Systemic arterial systolic pressure and pulmonary vascular resistance were decreased and there was no significant difference in systemic vascular resistance, mixed venous oxygen saturation, heart rate and diastolic blood pressure in comparison to the control group.
Discussion: Our results pointed at very satisfactory hemodynamic effects of quinaprilat on "stunned myocardium", after CABG surgery. The ACE inhibitors greatly reduce mortality in patients in all stages of heart failure, from asymptomatic dysfunction of the left ventricle to severe symptomatic stages.
Conclusion: In prevention of heart failure in patients with impaired left ventricle function (LVEF<30%), who had undergone CABG surgery with use of cardiopulmonaly bypass, we achieved the best effects on the hemodynamics with parenteral administration of quinaprilat.

0 (Angiotensin-Converting Enzyme Inhibitors)
0 (Tetrahydroisoquinolines)
34SSX5LDE5 (quinaprilat)

Date Created: 20090211 Date Completed: 20090224 Latest Revision: 20190923

20221213

10.2298/mpns0810512l

19203070