Clinical Outcomes of Patients With the HeartMate II Left Ventricular Assist Device: A Single-center Experience From Japan

O. Seguchi, K. Kuroda, Y. Kumai, S. Nakajima, M. Yanase, K. Wada, Y. Matsumoto, S. Fukushima, T. Fujita, J. Kobayashi, N. Fukushima

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Background: Left ventricular assist device (LVAD) therapy is the “gold standard” alternative therapy for patients with advanced heart failure. However, LVAD therapy is still uncommon in the Asia-Pacific region. Therefore, we aimed to elucidate the clinical outcomes of patients from Japan supported with the HeartMate II (HM-II) LVAD at our institution. Methods: Ninety-two patients (mean 44.3 ± 12.1 years, 68 men, average body mass index 1.65 ± 0.28 m2; 81 with nonischemic cardiomyopathy) who underwent HM-II implantation for bridge to transplantation (n = 91) or for destination therapy in a clinical study (n = 1) at the National Cerebral and Cardiovascular Center between April 2013 and October 2017 were enrolled in this analysis. Preoperatively, most patients (n = 73, 79%) had an INTERMACS (Interagency Registry for Mechanically Assisted Circulatory Support) profile of between level 2 and 4. Postoperatively, the average pump speed was 8602 ± 258 rpm and the hemodynamics were well compensated. Results: Adverse events consisted of 38 (41.3%) hemolysis, 30 (32.6%) major infection, 27 (29.3%) major bleeding (6 [6.5%] with gastrointestinal bleeding), and 18 (19.6%) neurologic dysfunction events. Eighteen patients underwent heart transplantation (HTx) after an average of 32.9 ± 8.9 months of VAD support, and overall survival at both 6 months and 3 years was 96.3%. Conclusion: Clinical outcome among patients with HM-II at our institution is satisfactory for both survival and adverse events. The HM-II can provide effective hemodynamic support during the extremely long waiting period for HTx in Japan.

Original languageEnglish
Pages (from-to)2726-2732
Number of pages7
JournalTransplantation Proceedings
Issue number9
Publication statusPublished - 11-2018
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Surgery
  • Transplantation


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