• Zbigniew Putowski, Michał P Pluta, Natalia Rachfalska, Łukasz J Krzych, and Daniel De Backer.
• University Clinical Center of the Medical University of Silesia in Katowice, Katowice, Poland. Electronic address: putowski.zbigniew@gmail.com.
• J. Cardiothorac. Vasc. Anesth. 2023 Oct 1; 37 (10): 206520722065-2072.

AbstractCardiogenic shock causes hypoperfusion within the microcirculation, leading to impaired oxygen delivery, cell death, and progression of multiple organ failure. Mechanical circulatory support (MCS) is the last line of treatment for cardiac failure. The goal of MCS is to ensure end-organ perfusion by maintaining perfusion pressure and total blood flow. However, machine-blood interactions and the nonobvious translation of global macrohemodynamics into the microcirculation suggest that the use of MCS may not necessarily be associated with improved capillary flow. With the use of hand-held vital microscopes, it is possible to assess the microcirculation at the bedside. The paucity of literature on the use of microcirculatory assessment suggests the need for an in-depth look into microcirculatory assessment within the context of MCS. The purpose of this review is to discuss the possible interactions between MCS and microcirculation, as well as to describe the research conducted in this area. Regarding sublingual microcirculation, 3 types of MCS will be discussed: venoarterial extracorporeal membrane oxygenation, intra-aortic balloon counterpulsation, and microaxial flow pumps (Impella).Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.

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