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A young woman presented with paroxysmal palpitations. These episodes were sudden onset, sudden offset and not related to physical exertion, lasting 30 min to an hour. Four years ago, she received an ECG patch monitor for 3 months, but no events were captured. Physical examination was unremarkable. Resting 12-lead ECG showed sinus rhythm with no pre-excitation. Echocardiography showed structurally normal heart. Six months later, the patient had another recurrence of palpitations and this was captured on the Apple Watch Series 5 (figure 1).
What is the most likely diagnosis?
Ventricular tachycardia (VT)
Atrial flutter with 1:1 conduction
Supraventricular tachycardia (SVT) with …
Contributors The first and corresponding author wrote the manuscript. The remainder of the authors reviewed the manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.
Patient consent for publication Not required.
Provenance and peer review Not commissioned; externally peer reviewed.
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