TY - JOUR
T1 - Trends in the use of implantable cardioverter defibrillators in Australia: a 10-year nationwide study from 2000-2009
AU - Burch, A
AU - Wong, Christopher
AU - Sullivan, Thomas
AU - Brooks, Anthony
AU - Leong, Darryl
AU - Lau, Dennis
AU - Sun, Michelle
AU - Roberts-Thomson, Kurt
AU - Sanders, Prashanthan
PY - 2013
Y1 - 2013
N2 - Background: Implantable cardioverter defibrillators (ICD) have been demonstrated to reduce mortality in survivors of life-threatening arrhythmias (secondary prevention) and in patients at increased risk of sudden cardiac death (primary prevention). Other nations have reported significant increases in ICD use in recent years. Aim: To investigate Australian nationwide trends of ICD procedures over a 10-year period (2000-2009). Methods: A retrospective analysis of the Australian Institute of Health and Welfare’s National Hospital Morbidity Database was performed to determine the annual number of ICD implantation and replacement procedures between 2000 and 2009. Rates were calculated using Australian Bureau of Statistics data on the annual estimated population. Time trends in the yearly procedure number and rate were analysed using negative binomial regression models with comparisons made by age and sex. Results: The number of new ICD implantations increased from 708 to 3198 procedures between 2000 and 2009. Replacement procedures increased from 290 to 1378. The implantation rate (per million) increased from 37.0 to 145.6 and the replacement rate from 15.1 to 62.7. When rates were adjusted for age and sex, the implantation rate increased annually by 15.8% and the replacement rate by 16.6% (P < 0.0001). Procedures occurred most commonly in men (implantations: 80.1%; replacements: 78.0%) between ages 70-79. Conclusions: ICD procedures increased significantly in Australia between 2000-2009. Despite these increases, other studies have suggested ICD devices are currently underutilised. During the study period, males accounted for the majority of ICD procedures. While there are numerous reasons for this, it is not known if device under-use is more common in females.
AB - Background: Implantable cardioverter defibrillators (ICD) have been demonstrated to reduce mortality in survivors of life-threatening arrhythmias (secondary prevention) and in patients at increased risk of sudden cardiac death (primary prevention). Other nations have reported significant increases in ICD use in recent years. Aim: To investigate Australian nationwide trends of ICD procedures over a 10-year period (2000-2009). Methods: A retrospective analysis of the Australian Institute of Health and Welfare’s National Hospital Morbidity Database was performed to determine the annual number of ICD implantation and replacement procedures between 2000 and 2009. Rates were calculated using Australian Bureau of Statistics data on the annual estimated population. Time trends in the yearly procedure number and rate were analysed using negative binomial regression models with comparisons made by age and sex. Results: The number of new ICD implantations increased from 708 to 3198 procedures between 2000 and 2009. Replacement procedures increased from 290 to 1378. The implantation rate (per million) increased from 37.0 to 145.6 and the replacement rate from 15.1 to 62.7. When rates were adjusted for age and sex, the implantation rate increased annually by 15.8% and the replacement rate by 16.6% (P < 0.0001). Procedures occurred most commonly in men (implantations: 80.1%; replacements: 78.0%) between ages 70-79. Conclusions: ICD procedures increased significantly in Australia between 2000-2009. Despite these increases, other studies have suggested ICD devices are currently underutilised. During the study period, males accounted for the majority of ICD procedures. While there are numerous reasons for this, it is not known if device under-use is more common in females.
KW - Epidemiology
KW - Implantable cardioverter defibrillator
KW - Sudden cardiac death
UR - http://www.scopus.com/inward/record.url?scp=84896563428&partnerID=8YFLogxK
U2 - 10.1111/imj.12201
DO - 10.1111/imj.12201
M3 - Article
VL - 43
SP - 888
EP - 895
JO - Internal Medicine Journal
JF - Internal Medicine Journal
SN - 0004-8291
IS - 8
ER -