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Updated: Sep 5, 2026

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
Published on: June 10, 2025
Telemetry-based insights: clinical indicators linked to unfavorable outcomes in heart failure
Rafaela da Silva Cruz1, Dayanna Machado Lemos2, Kely Regina da Luz2
1Universidade Federal do Rio Grande do Sul (UFRGS), Escola de Enfermagem, Porto Alegre, Rio Grande do Sul, Brazil.
Objective:
Evaluate the clinical profile of heart failure patients under telemetry and identify associations with unfavorable outcomes.
Methods:
Cross-sectional study from 2019 to 2024 at a public university hospital. Coronary Care Unit nurses collected data from electronic medical records, which were analyzed using SPSS®. The project was approved by the Ethics Committee (Nº. 2019-0046).
Results:
Out of 425 medical records, 43% showed events, primarily non-sustained ventricular tachycardia (14.8%). After arrhythmic events, 29.6% underwent urgent electrocardiogram, 30.1% had pharmacological adjustments, and 15.7% died after transfer to the Coronary Care Unit. Significant associations included unfavorable outcomes in males (p=0.038), while diabetes mellitus was protective (p=0.004). Previous arrhythmias were also associated with adverse outcomes. Notably, event incidence was significant within the first 10 days of telemetry.
Conclusion:
Pre-existing arrhythmias and male sex were associated with composite unfavorable outcomes in heart failure patients remotely monitored by telemetry.
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