Automatic remote monitoring utilizing daily transmissions: Transmission reliability and implantable cardioverter defibrillator battery longevity in the TRUST trial

Niraj Varma, Charles J. Love, Robert Schweikert, Philip Moll, Justin Michalski, Andrew E. Epstein

Research output: Contribution to journalArticle

Abstract

Aims Benefits of automatic remote home monitoring (HM) among implantable cardioverter defibrillator (ICD) patients may require high transmission frequency. However, transmission reliability and effects on battery longevity remain uncertain. We hypothesized that HM would have high transmission success permitting punctual guideline based follow-up, and improve battery longevity. This was tested in the prospective randomized TRUST trial. Methods and results Implantable cardioverter defibrillator patients were randomized post-implant 2:1 to HM (n = 908) (transmit daily) or to Conventional in-person monitoring [conventional management (CM), n = 431 (HM disabled)]. In both groups, five evaluations were scheduled every 3 months for 15 months. Home Monitoring technology performance was assessed by transmissions received vs. total possible, and number of scheduled HM checks failing because of missed transmissions. Battery longevity was compared in HM vs. CM at 15 months, and again in HM 3 years post-implant using continuously transmitted data. Transmission success per patient was 91% (median follow-up of 434 days). Overall, daily HM transmissions were received in 315 795 of a potential 363 450 days (87%). Only 55/3759 (1.46%) of unsuccessful scheduled evaluations in HM were attributed to transmission loss. Shock frequency and pacing percentage were similar in HM vs. CM. Fifteen month battery longevity was 12% greater in HM (93.2 ± 8.8% vs. 83.5 ± 6.0% CM, P < 0.001). In extended follow-up of HM patients, estimated battery longevity was 50.9 ± 9.1% (median 52%) at 36 months. Conclusion Automatic remote HM demonstrated robust transmission reliability. Daily transmission load may be sustained without reducing battery longevity. Home Monitoring conserves battery longevity and tracks long term device performance. Clinical trial registration ClinicalTrials.gov; NCT00336284.

Original languageEnglish (US)
Pages (from-to)622-628
Number of pages7
JournalEuropace
Volume20
Issue number4
DOIs
StatePublished - Apr 1 2018

Keywords

  • Battery
  • Follow-up
  • Implantable cardioverter defibrillator
  • Patient monitoring
  • Remote monitoring
  • Statements and guidelines
  • Transmission reliability

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)

Fingerprint Dive into the research topics of 'Automatic remote monitoring utilizing daily transmissions: Transmission reliability and implantable cardioverter defibrillator battery longevity in the TRUST trial'. Together they form a unique fingerprint.

  • Cite this