Title

Correlation of QT interval prolongation with the severity of heart failure: A longitudinal study

Authors

Mani Shankar Pandey¹ & Jyoti Mani Shankar Pandey^2,*

Affiliation

¹Department of Cardiology, Nalanda Medical College and Hospital, Patna, Bihar, India; ²Department of Ophthalmology, Nalanda Medical college and Hospital, Patna, Bihar, India; *Corresponding author

Email

Mani Shankar Pandey - E-mail: manidmch06@gmail.com
Jyoti Mani Shankar Pandey - E-mail: drjyoti0304@gmail.com

Article Type

Research Article

Date

Received February 1, 2026; Revised February 28, 2026; Accepted February 28, 2026, Published February 28, 2026

Abstract

Heart failure (HFrEF or HFpEF) patients are at risk for arrhythmic events and mortality, yet the role of QT interval prolongation as a prognostic marker in this population remains poorly understood. Patients with heart failure (HFrEF or HFpEF) were assessed for changes in QT interval, NYHA class, LVEF, BNP levels and hospitalizations. Results showed significant associations between prolonged QT interval and worsening heart failure, with increased risks of arrhythmic events and mortality. The advancement to knowledge in this study is the identification of QT interval prolongation as a significant prognostic marker for heart failure severity.

Keywords

Arrhythmic events, heart failure, left ventricular ejection fraction, mortality, QT interval prolongation

Citation

Pandey et al. Bioinformation 22(2): 1175-1178 (2026)

Edited by

Ritik Kashwani

ISSN

0973-2063

Publisher

Biomedical Informatics

License

This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.