Key result
Severe pectus excavatum causes cardiac levoposition, right chamber compression, and frequent ventricular extrasystoles.
Case Report (n=1)
Severe pectus excavatum can cause mechanical compression and deformation of the right cardiac chambers, presenting clinically with frequent right ventricular outflow tract-like ventricular extrasystoles.
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May warrant evaluation for pectus excavatum in unexplained RVOT-like ventricular extrasystoles; hypothesis-generating and requires prospective confirmation.
A 33-year-old woman, with palpitations since the age of 15, was referred to a cardiology consultation due to very frequent ventricular extrasystoles with morphology of left bundle branch block, inferior frontal axis, late precordial transition, rS in V1, R in V6 and rS in DI. She had pectus excavatum. The cardiac magnetic resonance showed severe pectus excavatum associated with exaggerated cardiac levoposition, compression and deformation of the right cardiac chambers. However, the patient became pregnant, and follow-up was delayed.
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Ferraz et al. (2023) conducted a case report in Pectus excavatum with right ventricular compression-induced ventricular arrhythmias (n=1). Cardiac magnetic resonance was evaluated on Right cardiac chamber compression and deformation on cardiac magnetic resonance. Severe pectus excavatum in a 33-year-old woman caused cardiac levoposition, right chamber compression, and frequent ventricular extrasystoles.
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