Pulmonary artery balloon counterpulsation in the management of right heart failure during left heart bypass

P. A. Spence, R. D. Weisel, J. Easdown, K. A. Jabr, T. A. Salerno

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Pulmonary artery balloon counterpulsation was instituted in 10 pigs when right ventricular failure limited cardiac output. Global myocardial depression was produced by infusion of propranolol, and the left ventricle was fully supported by left heart bypass. A stable model of failure was achieved in six pigs. Following application of pulmonary artery balloon counterpulsation right atrial pressure decreased from 18.2 ± 2.1 to 15.9 ± 2.5 mm Hg (p<0.05). Cardiac output increased from 416 ± 94 to 758 ± 127 ml/min (p<0.001). Right ventricular stroke work increased from 0.29 ± 0.07 to 0.65 ± 0.12 gm . m. (p<0.05). There was no cardiac output before or after institution of balloon counterpulsation in four pigs studied during ventricular fibrillation or asystole. We conclude that pulmonary artery balloon counterpulsation improved cardiac output and right ventricular stroke work in a model of right ventricular failure where the pulmonary circulation was unaltered and the left ventricle supported by left heart bypass. Balloon counterpulsation was not effective during ventricular fibrillation or asystole. Pulmonary artery balloon counterpulsation should be considered when right ventricular failure limits cardiac output during left heart bypass.

Original languageEnglish (US)
Pages (from-to)264-268
Number of pages5
JournalJournal of Thoracic and Cardiovascular Surgery
Volume89
Issue number2
DOIs
StatePublished - 1985

ASJC Scopus subject areas

  • Surgery
  • Pulmonary and Respiratory Medicine
  • Cardiology and Cardiovascular Medicine

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