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Effect of cardiac arrest with aortic cross-clamping during left ventricular assist device implantation.

Abstract：

OBJECTIVES:Some patients who undergo continuous-flow left ventricular assist device (CF-LVAD) implantation require concomitant procedures that can be performed with or without cardiac arrest under aortic cross-clamping (AXC). Procedures normally performed with cardiac arrest are sometimes avoided or performed without cardiac arrest because it may be detrimental to right heart function. However, the effects of cardiac arrest on patients with advanced heart failure necessitating CF-LVAD support have not been thoroughly studied. We examined our single-centre experience to determine whether cardiac arrest during CF-LVAD implantation was associated with worse patient outcomes. METHODS:From November 2003 to March 2016, a total of 526 patients with chronic end-stage heart failure underwent primary CF-LVAD implantation. Preoperative demographics, postoperative complications and mortality rates were compared between patients who required cardiac arrest with AXC (n = 50) and those who did not (n = 476). RESULTS:The most frequently performed procedure requiring AXC was aortic valve closure (n = 23, 26.1%). Although the AXC group had longer cardiopulmonary bypass times (P < 0.01), long-term (5-year) survival was similar in AXC and non-AXC patients (P = 0.13). Also, postoperative right heart failure (P = 0.15) and neurological dysfunction (P = 0.89) rates were not significantly different between the 2 groups. Cox proportional hazards analysis showed that cardiac arrest with AXC was not an independent predictor of mortality (hazard ratio, 0.89; P = 0.73). CONCLUSIONS:Cardiac arrest with AXC during CF-LVAD implantation did not negatively affect long-term survival or the incidence of right ventricular failure or stroke. These findings should be considered in deciding surgical strategies. Additional investigation may be warranted to further understand the effects of cardiac arrest during LVAD implantation.

journal_name

Interact Cardiovasc Thorac Surg

journal_title

Interactive cardiovascular and thoracic surgery

authors

Kawabori M,Kurihara C,Critsinelis A,Chou BP,Zhang Q,Kaku Y,Civitello AB,Morgan JA

doi

10.1093/icvts/ivz223

subject

Has Abstract

pub_date

2020-01-01 00:00:00

pages

47-53

issue

eissn

1569-9293

issn

1569-9285

pii

5571461

journal_volume

pub_type

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Effect of cardiac arrest with aortic cross-clamping during left ventricular assist device implantation.