Comparing short versus standard-length balloon for intra-aortic counterpulsation: results from a porcine model of myocardial ischaemia-reperfusion

Sandro Gelsomino*, Pieter W. J. Lozekoot, Roberto Lorusso, Monique M. J. de Jong, Orlando Parise, Francesco Matteucci, Fabiana Luca, Mark La Meir, Gian Franco Gensini, Jos G. Maessen

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Web of Science)

Abstract

OBJECTIVES: We compare a short and a standard-size balloon with same filling volumes to verify the differences in terms of visceral flow, coronary circulation and haemodynamic performance during aortic counterpulsation in an animal model of myocardial ischaemia-reperfusion injury. METHODS: Eighteen healthy pigs underwent 120-min ligation of the left anterior descending coronary artery followed by 6 h of reperfusion, and they were randomly assigned to have intra-aortic balloon counterpulsation (IABP) with a 40-ml short-balloon (n = 6) or a 40-ml standard-length balloon (n = 6), or to undergo no IABP implantation (controls, n = 6). Haemodynamics and visceral and coronary flows were measured at baseline (t(0)), at 2 h of ischaemia (t(1)) and every hour thereafter until 6 h of reperfusion (from t(R1) to t(R6)), respectively. RESULTS: Mesenteric flows increased significantly at tR1 only in the short-balloon group (P <0.001) and it was constantly higher than in the standard-balloon group regardless of mean arterial pressure, systemic vascular resistance and cardiac output (CO; all, P <0.001). Renal blood flows were significantly increased during IABP treatment with values constantly and significantly higher in short balloons at any following experimental step (all, P <0.05). IABP improved CO and coronary blood flow, and reduced afterload, myocardial resistances and myocardial oxygen consumption without differences between the short and the standard-length balloon (all, P > 0.05). CONCLUSIONS: The short balloon prevents visceral ischaemia and, compared with the standard-size balloon, it does not lose IABP beneficial cardiac and coronary-related effects. Further studies are warranted to confirm our findings.
Original languageEnglish
Pages (from-to)1361-1369
JournalEuropean Journal of Cardio-Thoracic Surgery
Volume49
Issue number5
DOIs
Publication statusPublished - May 2016

Keywords

  • Ischaemia
  • Myocardial infarction
  • Intra-aortic counterpulsation

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