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A 19-year-old male patient was referred to our institution for further evaluation after a first episode of palpitations with presyncope. His past medical history and family history were unremarkable. A resting ECG and a transthoracic echocardiography from a typical apical 4-chamber view position were recorded during shallow breathing (figures 1 and 2, see online supplementary movies 1 and 2) and on deep inspiration (figures 3 and 4, see online supplementary movies 1 and 2). Repeated Holter monitoring did not show any relevant arrhythmia, except for marked sinus arrhythmia; premature ventricular contraction (PVC) count was less than 100/day.
Cardiac MRI …
Contributors K-PR: concept, drafting article and data collection; CP, MG and GH:critical revision of article; O-AB: critical revision of article and approval.
Competing interests None.
Patient consent Obtained.
Provenance and peer review Not commissioned; internally peer reviewed.
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