Single center experience and early outcomes of Impella 5.5

Masaki Funamoto, Chandra Kunavarapu, Michael D. Kwan, Yuichi Matsuzaki, Mahek Shah, Masahiro Ono

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Background: Acute decompensated heart failure (HF) and cardiogenic shock (CS) frequently are refractory to conservative treatment and require mechanical circulatory support (MCS). We report our early clinical experience and evaluate patient outcomes with the newer generation surgical Impella 5.5. Methods: Seventy patients that underwent Impella 5.5 implantation between October 2019 and December 2021 at a single center were enrolled in this study. Pre-operative characteristics, peri-operative clinical course information, and post-operative outcomes were retrospectively collected. Results: Fifty-seven (81%) patients survived to discharge, and 51 (76%) patients survived at the time of the first 30 days post-discharge visit. Thirty-one patients (44%) received Impella support for a bridge to advanced surgical heart failure therapy (transplant or durable left ventricular assist device [LVAD]), 27 (39%) cases were used for a bridge to recovery/decision and 12 (17.1%) cases was used for planned perioperative support for high-risk cardiac surgery procedure. Conclusion: Our results suggest that Impella 5.5 provides favorable survival in the management of HF and CS, particularly used for a bridge to heart transplant or LVAD. Early extubation and mobilization with high flow circulatory support allowed effective tailoring of MCS approaches from peri-operative support for high-risk cardiac surgery, bridge to recovery, and to advanced surgical heart failure therapy.

Original languageEnglish (US)
Article number1018203
JournalFrontiers in Cardiovascular Medicine
StatePublished - 2023
Externally publishedYes


  • Impella
  • bridge to LVAD
  • bridge to recovery
  • bridge to transplant
  • cardiogenic shock
  • high risk cardiac surgery
  • temporary mechanical circulatory support

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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