METHODS
The Canberra Hospital (TCH) device registry is a prospectively
maintained a cohort database of implanted cardiac devices. The
demographic and clinical data is being recorded at scheduled clinic
visits and the device data is being interrogated through scheduled or
unscheduled clinic visits and remote monitoring of the devices. In this
study, consecutive patients receiving an ICD between January 2005 to
June 2019 who had regular interrogation (clinical or remote
transmission) of the implanted ICD in the follow-up were included. The
identity of these patients was linked with the National Death Index
(NDI) obtained from the Australian Institute of Health and Welfare
(AIHW) to confirm the survival status and cause of death. The following
patients were excluded from the study: incomplete clinical or device
data; no survival data; in-hospital or immediate post-procedure
(<30 days) deaths; channelopathies.
The study complies with the Declaration of Helsinki and was approved by
the Human Research Ethics Committee (2019/LRE/0127) and the AIHW Ethics
Committee (EO2020/1/1102). The primary objective of the study was to
analyse the characteristics of the demographic variables, clinical
variables, device therapies and survival data of patients receiving an
ICD in patients with mixed CMP in comparison with ICM and NICM. The
secondary objectives were to analyse the characteristics of clinical,
device therapies and mortality in non-survivors in the total cohort and
to identify the significant predictors of mortality in the total cohort.