Over the last decade, there has been a surge in the implantations of devices for cardiac resynchronization
therapy (CRT), with increasing recognition of their value in the management of medically refractory heart
failure (HF). With this exponential growth, the need to offer the best quality of care after implantation
has entailed an increase in healthcare spending. Frequent in-office follow-ups are limited by the
immense healthcare cost, while emergency hospitalizations for acute decompensation of HF further
contribute to the burden.
Implantable sensors in the CRT device offer a unique opportunity for continuous monitoring of a
patient's clinical HF status by measuring cardiac rhythm, intracardiac pressures, cardiac events, and
physical activity, as well as detecting any device malfunction. Detecting early signs of a deteriorating
clinical condition allows prompt preemptive medical intervention to optimize HF management. As a
result, not only healthcare professionals will benefit from a reduction in hospitalizations and routine
in-office follow-ups, but also patients will benefit from efficient management of their HF. This review
highlights the latest available device-based remote monitoring systems and the most up-to-date
evidence for the use of remote monitoring in CRT