Association between demographic, organizational, clinical, and socio-economic characteristics and underutilization of cardiac resynchronization therapy: results from the Swedish Heart Failure Registry.Show others and affiliations
2017 (English)In: European Journal of Heart Failure, ISSN 1388-9842, E-ISSN 1879-0844, Vol. 19, no 10, p. 1270-1279Article in journal (Refereed) Published
Abstract [en]
AIMS: Cardiac resynchronization therapy (CRT) improves outcomes in heart failure (HF) but may be underutilized. The reasons are unknown.
METHODS AND RESULTS: We linked the Swedish Heart Failure Registry to national registries with ICD-10 (International Classification of Diseases-10th Revision) co-morbidity diagnoses and demographic and socio-economic data. In patients with EF ≤39% and NYHA II-IV, we assessed prevalence of CRT indication and CRT use. In those with CRT indication, we assessed the association between 37 potential baseline covariates and CRT non-use using multivariable generalized estimating equation (GEE) models. Of 12 807 patients (mean age 71 ± 12 years, 28% female), 841 (7%) had CRT, 3094 (24%) had an indication for but non-use of CRT, and 8872 (69%) had no indication. Important variables independently associated with CRT non-use were: HF duration <6 months [risk ratio (RR) 1.21, 95% confidence interval (CI) 1.17-1.24]; non-cardiology planned follow-up (RR 1.14, 95% CI 1.09-1.18); age >75 years (RR 1.13, 95% CI 1.09-1.18); non-cardiology care at baseline (RR 1.10, 95% CI 1.07-1.14); small-town non-university centre (RR 1.08, 95% CI 1.05-1.12); female sex (RR 1.07 95% CI 1.03-1.10) (all P < 0.05); as was absence of AF, living alone; psychiatric diagnosis; smoking; and non-use of HF drugs. Education, income, cancer, or HF characteristics were not independently associated with CRT non-use.
CONCLUSION: In this population-wide HF registry, CRT was underutilized. Non-use was associated mostly with demographic and organizational, but not clinical or socio-economic factors. This calls for programmes to raise awareness of CRT indications and improve access and referrals to cardiology specialists.
Place, publisher, year, edition, pages
John Wiley & Sons, 2017. Vol. 19, no 10, p. 1270-1279
Keywords [en]
Cardiac resynchronization therapy, Epidemiology, Guidelines, Heart failure, Implementation, Utilization
National Category
Cardiology and Cardiovascular Disease
Identifiers
URN: urn:nbn:se:liu:diva-139104DOI: 10.1002/ejhf.781ISI: 000412521000008PubMedID: 28176416OAI: oai:DiVA.org:liu-139104DiVA, id: diva2:1118662
Note
Funding agencies: Swedish Research Council [2013-23897-104604-23]; Swedish Heart Lung Foundation [20150063, 20080498, 20110406, 20090870]; Stockholm County Council [20090556, 20110120, 20090376, 20110610]
2017-07-012017-07-012025-02-10Bibliographically approved