# Case Report: Dynamic J-point elevation as a novel precursor to torsade de pointes: electrocardiographic markers for proactive management

**Authors:** Huihui Zhang, Zhi Zhang, Miaolin Zhang, Hong Yuan

PMC · DOI: 10.3389/fcvm.2025.1613757 · Frontiers in Cardiovascular Medicine · 2025-11-11

## TL;DR

A 41-year-old man's cardiac arrest revealed that J-point elevation on ECG can predict torsade de pointes, suggesting proactive monitoring could prevent dangerous arrhythmias.

## Contribution

Identifies dynamic J-point elevation as a novel ECG precursor to torsade de pointes.

## Key findings

- J-point and ST-segment elevation in lead II preceded torsade de pointes in a cardiac arrest case.
- Continuous ECG monitoring captured the full evolution from J-point elevation to polymorphic ventricular tachycardia.
- The case highlights the importance of ECG monitoring for early detection of high-risk arrhythmias.

## Abstract

This case report presents a 41-year-old male who experienced out-of-hospital cardiac arrest (OHCA) and was successfully resuscitated through prehospital emergency medical services and in-hospital advanced cardiovascular life support. Continuous electrocardiographic (ECG) monitoring revealed a unique pattern of J-point and ST-segment elevation in lead II, which preceded the development of torsade de pointes (TdP). The complete ECG evolution, from initial J-point elevation to the onset of polymorphic ventricular tachycardia, was meticulously documented. This rare case provides valuable insights into the electrocardiographic precursors of malignant ventricular arrhythmias and highlights the importance of continuous ECG monitoring in identifying high-risk patients.

## Linked entities

- **Diseases:** cardiac arrest (MONDO:0000745)

## Full-text entities

- **Diseases:** OHCA (MESH:D058687), TdP (MESH:D016171), malignant ventricular arrhythmias (MESH:D001145), cardiac arrest (MESH:D006323), ventricular tachycardia (MESH:D017180)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

3 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12644040/full.md

## References

24 references — full list in the complete paper: https://tomesphere.com/paper/PMC12644040/full.md

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Source: https://tomesphere.com/paper/PMC12644040