Document Detail


Discontinuation of beta-blockers in cardiovascular disease: UK primary care cohort study.
MedLine Citation:
PMID:  22840685     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
AIMS: The present study aims to investigate patterns of beta-blocker usage in a national primary care cohort. METHODS AND RESULTS: This is a retrospective cohort study utilising the UK General Practice Research Database from 2004 to 2008. Inclusion criteria were (i) a first diagnosis of chronic heart failure (CHF), myocardial infarction (MI) or angina, and (ii) first-ever prescription of beta-blocker on or after 1st April 2004. Outcome measures were discontinuation of beta-blockers over time, initiation dosages, titration patterns, incidence of adverse events (AEs) and associated prescribing actions. A total of 12,493 patients (68.0% male; mean age 58.0±SD 17.6years) were included. Of these, 27% had discontinued beta-blockers within 1year of initiation, increasing to 39% by 2years and 50% by 3years. Persistence appeared to be greater in the MI cohort compared with angina or CHF cohorts. Beta-blocker dose at initiation averaged approximately 33% of guideline recommended target, rising to 40% in those who continued with therapy. Dyspnoea, fatigue and dizziness were the most common incident AEs at 98, 53 and 49 per 1000 patient years, with little difference between indications. CONCLUSION: A quarter of patients with cardiovascular disease who are commenced on a beta-blocker are no longer taking the drug by one year. This rises to 50% by three years, a finding that is consistent irrespective of whether the prescription is for prognostic (CHF or post MI) or symptomatic (angina) benefit. There is an urgent need to understand and address the prescribing difficulties of beta-blockers in these at-risk patients.
Authors:
Paul R Kalra; Chris Morley; Susie Barnes; Ian Menown; George Kassianos; Sandosh Padmanabhan; Sandeep Gupta; Chim C Lang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-26
Journal Detail:
Title:  International journal of cardiology     Volume:  -     ISSN:  1874-1754     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8200291     Medline TA:  Int J Cardiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.
Affiliation:
Department of Cardiology, Portsmouth Hospitals NHS Trust, Portsmouth, United Kingdom.
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