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Clin Cardiol. 2017 Oct;40(10):925-931. doi: 10.1002/clc.22749. Epub 2017 Jul 16.

Frailty is an independent prognostic marker in elderly patients with myocardial infarction.

Author information

1
Cardiology Department, Hospital Ramón y Cajal, University of Alcalá, Madrid, Spain.
2
Cardiology Department, Hospital Virgen Macarena, Seville, Spain.

Abstract

BACKGROUND:

Acute coronary syndrome (ACS) patients are increasingly older. Conventional prognostic scales include chronological age but do not consider vulnerability. In elderly patients, a frail phenotype represents a better reflection of biological age.

HYPOTHESIS:

This study aims to determine the prevalence of frailty and its influence on patients age ≥75 years with ACS.

METHODS:

Patients age ≥75 years admitted due to type 1 myocardial infarction were included in 2 tertiary hospitals, and clinical data were collected prospectively. Frailty was defined at admission using the previously validated Survey of Health Ageing and Retirement in Europe Frailty Index (SHARE-FI) tool. The primary endpoint was the combination of death or nonfatal myocardial reinfarction during a follow-up of 6 months. Major bleeding (hemoglobin decrease ≥3 g/dL or transfusion needed) and readmission rates were also explored.

RESULTS:

A total of 234 consecutive patients were included. Frail patients (40.2%) had a higher-risk profile, based on higher age and comorbidities. On multivariate analysis, frailty was an independent predictor of the combination of death or nonfatal myocardial reinfarction (adjusted hazard ratio [aHR]: 2.54, 95% confidence interval [CI]: 1.12-5.79), an independent predictor of the combination of death, nonfatal myocardial reinfarction, or major bleeding (aHR: 2.14, 95% CI: 1.13-4.04), and an independent predictor of readmission (aHR: 1.80, 95% CI: 1.00-3.22).

CONCLUSIONS:

Frailty phenotype at admission is common among elderly patients with ACS and is an independent predictor for severe adverse events. It should be considered in future risk-stratification models.

KEYWORDS:

Acute Coronary Syndrome; Acute Myocardial Infarction; Aging; Frailty; Prognosis

PMID:
28712144
DOI:
10.1002/clc.22749
[Indexed for MEDLINE]
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