Aneurysm of the membranous septum can present with atypical symptoms such as pre-syncopes and transient bilateral blindness.
A 33-year-old female presenting with a 3-year history of fatigue, palpitations, and dyspnoea on exertion revealed a 1/6 systolic murmur. ECG demonstrated premature beats, whereas echocardiography (Panel A) identified an aneurysm of the membranous septum (AMS) …
Langer et al. (Wed,) studied this question.