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Impact of multimorbidity on long-term outcomes in older adults with non-ST elevation acute coronary syndrome in the North East of England: a multi-centre cohort study of patients undergoing invasive care

Lookup NU author(s): Dr Ben Beska, Dr Hanna Ratcovich, Dr Chris WilkinsonORCiD, Professor Vijay KunadianORCiD

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Abstract

© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.OBJECTIVES: Older adults have a higher degree of multimorbidity, which may adversely affect longer term outcomes from non-ST elevation acute coronary syndrome (NSTE-ACS). We investigated the impact of multimorbidity on cardiovascular outcomes 5 years after invasive management of NSTE-ACS. DESIGN: Prospective cohort study. SETTING: Multicentre study conducted in the north of England. PARTICIPANTS: 298 patients aged ≥75 years with NSTE-ACS and referred for coronary angiography, with 264 (88.0%) completing 5-year follow-up. MAIN OUTCOME MEASURES: Multimorbidity was evaluated at baseline with the Charlson comorbidity index (CCI). The primary composite outcome was all-cause mortality, myocardial infarction, stroke, urgent repeat revascularisation or significant bleeding. RESULTS: Mean age was 80.9 (±6.1) years. The cohort median CCI score was 5 (IQR 4-7). The primary composite outcome occurred in 48.1% at 5 years, at which time 31.0% of the cohort had died. Compared with those with few comorbidities (CCI score 3-5), a higher CCI score (≥6) was positively associated with the primary composite outcome (adjusted HR (aHR) 1.64 (95% CI 1.14 to 2.35), p=0.008 adjusted for age and sex), driven by an increased risk of death (aHR 2.20 (1.38 to 3.49), p=0.001). For each additional CCI comorbidity, on average, there was a 20% increased risk of the primary composite endpoint at 5 years (aHR 1.20 (1.09 to 1.33), p<0.001). CONCLUSIONS: In older adults with NSTE-ACS referred for coronary angiography, the presence of multimorbidity is associated with an increased risk of long-term adverse cardiovascular events, driven by a higher risk of all-cause mortality. TRIAL REGISTRATION NUMBER: NCT01933581; ClinicalTrials.gov.

Publication metadata

Author(s): Beska B, Mills GB, Ratcovich H, Wilkinson C, Damluji AA, Kunadian V

Publication type: Article

Publication status: Published

Journal: BMJ Open

Year: 2022

Volume: 12

Issue: 7

Online publication date: 26/07/2022

Acceptance date: 15/07/2022

Date deposited: 12/08/2022

ISSN (print): 2044-6055

ISSN (electronic): 2044-6055

Publisher: BMJ Publishing Group

URL: https://doi.org/10.1136/bmjopen-2022-061830

DOI: 10.1136/bmjopen-2022-061830

PubMed id: 35882457

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