β-blockers after myocardial infarction and 1-year clinical outcome – a retrospective study

Abstract Background Long term β-blocker therapy after myocardial infarction (MI) reduces mortality and recurrent MI but evidence for this treatment predates contemporary acute coronary care. β-blocker treatment is a key quality of care indicator in the Swedish national quality register for acute cor...

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Main Authors: Tora Hagsund, Sven-Erik Olsson, J. Gustav Smith, Bjarne Madsen Hardig, Henrik Wagner
Format: Article
Language:English
Published: BMC 2020-04-01
Series:BMC Cardiovascular Disorders
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12872-020-01441-0
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author Tora Hagsund
Sven-Erik Olsson
J. Gustav Smith
Bjarne Madsen Hardig
Henrik Wagner
author_facet Tora Hagsund
Sven-Erik Olsson
J. Gustav Smith
Bjarne Madsen Hardig
Henrik Wagner
author_sort Tora Hagsund
collection DOAJ
description Abstract Background Long term β-blocker therapy after myocardial infarction (MI) reduces mortality and recurrent MI but evidence for this treatment predates contemporary acute coronary care. β-blocker treatment is a key quality of care indicator in the Swedish national quality register for acute coronary care, Riks-HIA. Between 2011 and 2015 a declining number of MI-patients discharged with a β-blocker from the coronary care unit (CCU) at Helsingborg and other hospitals was reported. This retrospective observational study aimed to investigate the causes for discharge without a β-blocker and relate it to outcome, compared to patients discharged with a β-blocker. Methods MI-patients registered in Riks-HIA discharged without β-blocker during 2011–2015 (no-β-group) and a control group (β-group) comprised of patients discharged with β-blocker treatment between January 1 to December 31, 2013, were matched by RIKS-HIA criteria for β-blocker use. Clinical characteristics, date of death, readmission for MI, other cardiovascular events were collected from Riks-HIA and medical records. Results The no-β-group included 141 patients, where 65.2% had a justified reason for non-β-blocker use. The β-group included 206 patients. There was no difference in cardiovascular risk factor profile. There were a trend towards a higher number of readmissions for MI in the no-β-group was (n = 8 (5.7%) vs n = 2 (1.0%), p = 0.02), but not mortality (6 (4.3%) vs 2 (1.0%), p = 0.07) and combined readmission for angina pectoris, heart failure, arrhythmias or stroke/TIA (n = 23 (16.3%) vs n = 25 (12.1%), p = 0.27). Conclusion A majority of the patients in the no-β-group had a justified absence of a β-blocker. β-blocker treatment post-MI showed a trend towards fewer readmissions for MI. But important quality information is lacking to make a firm conclusion of the effect on outcome.
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spelling doaj.art-47aeb1aef3aa491098f39c93324703bb2022-12-22T01:24:15ZengBMCBMC Cardiovascular Disorders1471-22612020-04-012011810.1186/s12872-020-01441-0β-blockers after myocardial infarction and 1-year clinical outcome – a retrospective studyTora Hagsund0Sven-Erik Olsson1J. Gustav Smith2Bjarne Madsen Hardig3Henrik Wagner4Medical faculty, Lund UniversityDepartment of Cardiology, Helsingborg HospitalDepartment of Cardiology, Lund UniversityDepartment of Cardiology, Lund UniversityDepartment of Cardiology, Lund UniversityAbstract Background Long term β-blocker therapy after myocardial infarction (MI) reduces mortality and recurrent MI but evidence for this treatment predates contemporary acute coronary care. β-blocker treatment is a key quality of care indicator in the Swedish national quality register for acute coronary care, Riks-HIA. Between 2011 and 2015 a declining number of MI-patients discharged with a β-blocker from the coronary care unit (CCU) at Helsingborg and other hospitals was reported. This retrospective observational study aimed to investigate the causes for discharge without a β-blocker and relate it to outcome, compared to patients discharged with a β-blocker. Methods MI-patients registered in Riks-HIA discharged without β-blocker during 2011–2015 (no-β-group) and a control group (β-group) comprised of patients discharged with β-blocker treatment between January 1 to December 31, 2013, were matched by RIKS-HIA criteria for β-blocker use. Clinical characteristics, date of death, readmission for MI, other cardiovascular events were collected from Riks-HIA and medical records. Results The no-β-group included 141 patients, where 65.2% had a justified reason for non-β-blocker use. The β-group included 206 patients. There was no difference in cardiovascular risk factor profile. There were a trend towards a higher number of readmissions for MI in the no-β-group was (n = 8 (5.7%) vs n = 2 (1.0%), p = 0.02), but not mortality (6 (4.3%) vs 2 (1.0%), p = 0.07) and combined readmission for angina pectoris, heart failure, arrhythmias or stroke/TIA (n = 23 (16.3%) vs n = 25 (12.1%), p = 0.27). Conclusion A majority of the patients in the no-β-group had a justified absence of a β-blocker. β-blocker treatment post-MI showed a trend towards fewer readmissions for MI. But important quality information is lacking to make a firm conclusion of the effect on outcome.http://link.springer.com/article/10.1186/s12872-020-01441-0Beta-blockersMyocardial infarctionSecondary preventionRiks-HIA
spellingShingle Tora Hagsund
Sven-Erik Olsson
J. Gustav Smith
Bjarne Madsen Hardig
Henrik Wagner
β-blockers after myocardial infarction and 1-year clinical outcome – a retrospective study
BMC Cardiovascular Disorders
Beta-blockers
Myocardial infarction
Secondary prevention
Riks-HIA
title β-blockers after myocardial infarction and 1-year clinical outcome – a retrospective study
title_full β-blockers after myocardial infarction and 1-year clinical outcome – a retrospective study
title_fullStr β-blockers after myocardial infarction and 1-year clinical outcome – a retrospective study
title_full_unstemmed β-blockers after myocardial infarction and 1-year clinical outcome – a retrospective study
title_short β-blockers after myocardial infarction and 1-year clinical outcome – a retrospective study
title_sort β blockers after myocardial infarction and 1 year clinical outcome a retrospective study
topic Beta-blockers
Myocardial infarction
Secondary prevention
Riks-HIA
url http://link.springer.com/article/10.1186/s12872-020-01441-0
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