Prevalence, characteristics and outcomes of people aged 65 years and over with an incidental rise in cardiac troponin I. An observational prospective cohort study

Myint, PK, Al-Jawad, M, Chacko, SM, Chu, GS, Vowler, SL and May, HM (2008) Prevalence, characteristics and outcomes of people aged 65 years and over with an incidental rise in cardiac troponin I. An observational prospective cohort study. Cardiology, 110 (1). pp. 62-67. ISSN 0008-6312

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Abstract

Background: Cardiac troponin I (cTnI) is a sensitive and specific marker of acute cardiac damage. We examined the prevalence, characteristics and outcome of incidental cTnI rises in older patients. Methods: One hundred and eighty-seven consecutive patients aged 65 years or over with a raised cTnI on admission at least 8 h after symptom onset were categorised into: (1) ST-elevation myocardial infarction, (2) other acute coronary syndromes (ACS), (3) other recognised non-ACS causes of cTnI rise and (4) non-ACS with no other identifiable cause (an incidental finding). The number of readmissions and deaths for each group was measured at 30 and 90 days. Results: Age range = 65–98 years. Male = 55.6%. Fifty-four percent had a raised cTnI due to non-ACS illnesses, whilst in 18% it was an incidental finding. The latter group was relatively older and had a significantly lower degree of cTnI rise (U = 1718.5, p = 0.002), but a higher readmission and mortality rate compared to the other groups (categories 1–3) for both follow-up periods. Conclusions: Incidental cTnI rise is common in older patients and is associated with a poorer prognosis compared to ACS or a recognised non-ACS condition. Future research should attempt to evaluate the significance of such incidental rises in elderly patients.

Item Type: Article
Faculty \ School: Faculty of Medicine and Health Sciences > Norwich Medical School
UEA Research Groups: Faculty of Medicine and Health Sciences > Research Groups > Norwich Clinical Trials Unit
Depositing User: Rhiannon Harvey
Date Deposited: 05 Dec 2011 10:41
Last Modified: 10 Jan 2024 01:22
URI: https://ueaeprints.uea.ac.uk/id/eprint/35598
DOI: 10.1159/000109408

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