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. 2021 Feb;45(2):159-162.
doi: 10.1111/aor.13797. Epub 2020 Oct 23.

Intra-aortic balloon pump: Looking at the other side

Sandro Gelsomino  1 , Monique M J de Jong  1
Affiliations

Intra-aortic balloon pump: Looking at the other side

Sandro Gelsomino et al. Artif Organs. 2021 Feb.

Abstract

Intra-aortic balloon pump has been the most commonly employed cardiac assist device in the past, although, in recent years, its use in cardiogenic shock has been questioned. The pathophysiology of the proximal part of the balloon has been well studied, whereas, hemodynamics and flow below the distal portion of the balloon have not been fully understood yet. The distal flow contains a three-wave flow pattern during diastolic balloon expansion: a flow reduction in early diastole, a backflow in mid-diastole followed by a tele-diastolic flow. More research on this topic is warranted to better understand the physics of the distal part of the balloon and its interaction with the three components of the local regulatory system: intrinsic (local metabolic and myogenic), extrinsic (autonomic nervous system), and humoral (local or circulating vasoactive substances). These new insights will be a guide for new balloon designs that will allow enhanced performance and improved outcomes.

Keywords: abdominal flow; circulation; intra-aortic balloon.

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Conflict of interest statement

The authors declare that they have no conflicts of interest with the contents of this article.

Figures

FIGURE 1
FIGURE 1
Flow patterns in the distal end of the intraaortic balloon [Color figure can be viewed at wileyonlinelibrary.com]
See this image and copyright information in PMC

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