Pectus excavatum with right ventricular compression-induced ventricular arrhythmias.

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.