CRT basics

Indications for implantation of these devices are continuously evolving. In the UK, specific criteria are advised by NICE [1]. A link to these guidelines can be found on the References page within Additional Materials.

The response rate to CRT is somewhere in the region of 60-70% of patients selected by current guidelines, with perhaps a further 10% of non-responders improving once their device parameters have been reprogrammed in conjunction with various echo measurements.