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ORIGINAL RESEARCH

The Frail Scale – A Risk Stratification in Older Patients with Acute Coronary Syndrome

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Pages 1521-1529 | Received 16 Mar 2023, Accepted 22 May 2023, Published online: 30 May 2023
 

Abstract

Purpose

The aim of this study was to explore the impact of frailty on in-hospital adverse outcomes and net adverse clinical events (NACE) in older patients with acute coronary syndrome.

Patients and Methods

This observational study included elderly patients (≥60 years old), diagnosed with acute coronary syndrome (ACS) at admission from February 2021 to August 2021. The primary outcome was net adverse clinical events (NACE) defined as a composite of all-cause mortality, stroke, and major bleeding. Secondary outcome was in-hospital adverse outcomes including arrhythmia, acquired pneumonia, stroke, major bleeding, and all-cause mortality. Frailty was assessed using the Frail scale (FS). Data about socio-demographics, comorbidities, body mass index, ACS type, coronary angiography, left ventricular ejection fraction, and length of hospital stay were also collected. Univariate and multivariate logistic regressions were employed to identify the potential association between frailty and outcomes.

Results

Of the 116 ACS patients, 38 patients were frail (32.76%). Frail subjects were more often female (50%) and older (p < 0.01) and had higher rates of in-hospital adverse outcomes (OR = 2.37, p = 0.05) and NACE (OR = 7.12; p < 0.01). In univariate analysis, the increased frail score was significantly associated with increased odds of NACE (unadjusted OR = 1.98, 95% CI 1.17–3.35 for each score increase in Frail Score). In multivariable logistic regression, models controlling for age, gender, PCI, LVEF, and coronary angiography (adjusted OR 2.19, 95% CI 1.12–4.29 for each score increase in Frail Score).

Conclusion

This study revealed the reference data of frailty assessment in older patients with ACS in Vietnam. Our result indicated that over 30% of ACS older patients presented with frailty which was associated with an increased risk of in-hospital adverse outcomes and NACE. This study also provided promising information about the simple FRAIL scale’s potential role in the risk stratification of older patients with ACS.

Acknowledgments

We would like to express our deepest gratitude for the great support of the Vietnam National Heart Institute, Bach Mai Hospital during research implementation.

Disclosure

The authors declare that there is no conflict of interest regarding the publication of this paper.