Mechanical circulatory support devices improve tissue perfusion in patients with end-stage heart failure or cardiogenic shock

Corstiaan A. den Uil, Alexander P. Maat, Wim K. Lagrand, Martin van der Ent, Lucia S. D. Jewbali, Robert J. van Thiel, Peter E. Spronk, Maarten L. Simoons

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Abstract

This study evaluated the effects of mechanical circulatory support (MCS) on sub-lingual microcirculation as a surrogate for splanchnic microvascular perfusion. Between May 2008 and April 2009, 10 consecutive patients received an MCS device or extracorporeal membrane oxygenation for end-stage chronic heart failure (n = 6) or cardiogenic shock (n = 4). Microcirculation was investigated using a hand-held Sidestream Dark Field imaging device. Perfused capillary density (PCD) and capillary red blood cell velocity (cRBCv) were assessed before device implantation (T0), immediately after implantation (T1), and 1 day after implantation (T2). Median patient age was 45 years (interquartile range [IQR] 38-52 years) and 70% were men. MCS significantly decreased pulmonary capillary wedge pressure (p = 0.04). Median cardiac power index increased (0.29 [IQR, 0.21-0.34] W/m(2) at T0 vs 0.48 [IQR, 0.39-0.54] W/m(2) at T1, p = 0.005) as well as median central venous oxygen saturation (54% [IQR, 46%-61%] at T0 vs 78% [IQR, 67%-85%] at T1, p = 0.007). There was a 3-fold increase in tissue perfusion index (sub-lingual PCD x cRBCv) during mechanical circulatory support (573 [IQR, 407-693] at T0 vs 1909 [IQR, 1771-2835] at T1, p = 0.005). Microcirculatory parameters remained improved at T2. Mechanical circulatory support for severe heart failure is associated with a consistent, significant, and sustained improvement in tissue perfusion, as measured at the bedside by a 2-dimensional microcirculation imaging technique
Original languageEnglish
Pages (from-to)906-911
JournalJournal of Heart and Lung Transplantation
Volume28
Issue number9
DOIs
Publication statusPublished - 2009

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