Physical Therapist-Led Ambulatory Rehabilitation for Patients Receiving CentriMag Short-Term Ventricular Assist Device Support: Retrospective Case Series

Abstract

Background and purpose: Short-term ventricular assist device (VAD) support is used in the intensive care unit (ICU) to support individuals in end-stage heart failure prior to heart transplantation or implantation of a long-term left VAD. The literature investigating the feasibility, safety, and content of rehabilitation for this patient group is lacking. This report retrospectively describes the rehabilitation strategy, safety measures used, and nature of any adverse events and, therefore, the feasibility of this practice.

Case series description: Ten individuals (80% male) admitted to the ICU in critical cardiogenic shock required support via a short-term VAD. A prerehabilitation risk assessment was used to reduce the risk of cannula dislodgement. The therapeutic strategy was a stepwise progression of exercises, mobilization, and ambulation.

Outcomes: Retrospective inspection of the case notes showed 330 rehabilitation sessions (X̅=33, SD=18.1, range=16-72) were performed and progressed to ambulation on 71 occasions (X̅=7.1, SD=7.7, range=1-27). Distance ambulated ranged from 7 to 1,200 m (X̅=157.7, SD=367.3). The Chelsea Critical Care Physical Assessment Tool (CPAx) score for 7 patients improved from a median of 0 (interquartile range=0-1) on day 1 to a median peak score of 39 (interquartile range=37-42). There were 8 episodes of minor adverse events (2.4% incidence rate), including 7 of transient low VAD flows. There were no major adverse events.

Discussion: Early rehabilitation and ambulation of recipients of short-term VAD support was safe and feasible. Recipients demonstrated improvements in physical function (CPAx score) while the VAD was in situ.