Compliance with Remote Monitoring of ICDS/CRTDS in a Real-World Population

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Abstract

Background:

Remote monitoring (RM) of defibrillators (implantable cardioverter defibrillators [ICDs]) and cardiac resynchronization therapy devices (CRTDs) has been shown to be cost effective, convenient, and associated with reduced mortality and a reduction in the time to physician intervention for actionable events. However, patient compliance with monitoring over time and what factors might influence such compliance have not been well described. This study sought to identify factors contributing to patient noncompliance with RM of ICDs and CRTDs in a large real-world population.

Methods:

Deidentified data on U.S. patients enrolled in the Medtronic CareLink RM system were used to compare patients with no (noncompliant, n = 14,848) and with ≥2 RM transmissions (compliant, n = 103,284) during a 14-month period.

Results:

Overall noncompliance with RM was 21%. Younger age (≤40), female sex, wanded device, Medicare Census Division, and small clinic size all predicted patient noncompliance (P < 0.01). Device type (ICD vs CRTD) did not (P = 0.52). Multivariate analysis suggested clinically important predictors of noncompliance to be: age ≤40, odds ratio (OR) 2.64 (95% confidence interval, 2.42–2.88); Medicare Census Division (Mountain vs West North Central), OR 2.15 (1.96–2.37); and small clinic size (1–4 vs >100 patients), OR 4.38 (3.92–4.91).

Conclusions:

There is room for improvement in RM usage among enrolled patients. Younger patients, smaller clinics, and certain geographic areas may be targets for research into interventions to further improve the use of RM

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