Frailty is a common and significant factor associated with adverse outcomes in patients with heart failure, but the prognostic utility of simple assessment tools in contemporary practice remains an area of investigation. A new study using data from a large Japanese registry has found that the Clinical Frailty Scale (CFS) effectively captures both physical and cognitive decline and is an independent predictor of long-term mortality in this patient population.¹

Methodology

This prospective, nationwide, multicentre registry study analysed data from 3,905 patients hospitalised with heart failure, enrolled in the Japanese Registry of Acute Decompensated Heart Failure-Next (JROADHF-NEXT). Patients were stratified into six categories according to their CFS score (1–2, 3, 4, 5, 6, and 7–9).

Physical function was comprehensively assessed using gait speed, the 5-chair stand test, the Short Physical Performance Battery (SPPB), grip strength, and the 6-minute walk distance. Cognitive function was evaluated using the Mini-Cog test. The primary outcome for the study was all-cause mortality at 2 years following discharge from hospital.

Findings

The results showed a clear correlation between increasing CFS severity and worsening patient function. Both physical performance metrics and Mini-Cog scores progressively declined as CFS scores increased.

Over the 2-year follow-up period, 725 patients (18.6%) died. The analysis revealed that mortality risk increased in a stepwise manner with higher CFS scores, demonstrating a strong prognostic link. Furthermore, when the CFS was added to a prognostic model that already included the SPPB and Mini-Cog test, it significantly improved the model's ability to discriminate patient risk.

In Practice

These findings highlight the value of the CFS as a simple yet powerful tool in the management of patients with heart failure. The study concluded that the CFS is an “independent predictor of 2-year mortality and a robust integrative measure of physical and cognitive vulnerability in patients with heart failure.”¹ The authors suggest that the CFS “provides a practical screening tool that complements formal performance-based frailty assessments in contemporary heart failure management.”¹ The scale's ease of use could facilitate better risk stratification and care planning for this vulnerable patient group.²

References

1. Nakade T, Fujimoto Y, Singh YS, et al. Frailty Scale Captures Multidimensional Vulnerability and Predicts Mortality in Heart Failure. J Am Coll Cardiol. 2026;87(1):20-32. https://doi.org/10.1016/j.jacc.2025.09.1590

2. Richter D, Guasti L, Walker D, et al. Frailty in cardiology: definition, assessment and clinical implications for general cardiology. A consensus document of the Council for Cardiology Practice (CCP), Association for Acute Cardio Vascular Care (ACVC), Association of Cardiovascular Nursing and Allied Professions (ACNAP), European Association of Preventive Cardiology (EAPC), European Heart Rhythm Association (EHRA), Council on Valvular Heart Diseases (VHD), Council on Hypertension (CHT), Council of Cardio-Oncology (CCO), Working Group (WG) Aorta and Peripheral Vascular Diseases, WG e-Cardiology, WG Thrombosis, of the European Society of Cardiology, European Primary Care Cardiology Society (EPCCS). Eur J Prev Cardiol. 2022;29:216-227. https://doi.org/10.1093/eurjpc/zwaa167

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