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Updated: Feb 23, 2026

Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function
Published on: December 11, 2019
Supraventricular tachycardia diagnosed by smartphone ECG
Ariana Tabing1, Travis Edward Harrell2, Steven Romero2
1Department of Internal Medicine, Naval Medical Center San Diego, San Diego, California, USA.
Diagnosing paroxysmal supraventricular tachycardia (PSVT) can be challenging. A smartphone ECG successfully identified PSVT in a patient previously undiagnosed by traditional methods, enabling timely treatment.
Area of Science:
- Cardiology
- Medical Technology
Background:
- Paroxysmal supraventricular tachycardia (PSVT) diagnosis is often delayed due to episodic and self-limiting symptoms.
- Traditional diagnostic tools like event monitors may fail to capture infrequent arrhythmias.
Observation:
- A patient with persistent symptoms of PSVT remained undiagnosed despite several years of evaluation with an event monitor.
- The patient utilized a smartphone-based ECG device to capture a symptomatic episode.
Findings:
- The smartphone ECG successfully recorded a typical atrioventricular node re-entrant tachycardia (AVNRT).
- This patient-generated data facilitated a timely diagnosis and referral for electrophysiology study.
- Successful slow pathway ablation was performed following diagnosis.
Implications:
- Smartphone-based ECG technology can empower patients to actively participate in their diagnosis.
- This technology has the potential to extend diagnostic capabilities beyond traditional clinical settings.
- Mobile health solutions can improve the efficiency and accessibility of arrhythmia diagnosis.
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