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  • Title: An uncommon variant of double-chambered right ventricle masquerading as double-chambered left ventricle.
    Author: Baritakis N, Grapsas N, Kotsalos A, Davlouros P.
    Journal: Interact Cardiovasc Thorac Surg; 2018 Feb 01; 26(2):350-352. PubMed ID: 29049616.
    Abstract:
    We present a rare case of a double-chambered right ventricle masquerading as a double-chambered left ventricle, which was found incidentally on cardiac imaging in an adult female patient with atypical chest pain. The most common form of double-chambered right ventricle is characterized by compartmentalization of the right ventricle by muscular bands into 2 distinct chambers. The main features of this malformation are a pressure gradient between the 2 compartments, and the frequent (up to 90%) association with a membranous ventricular septal defect. In our case, the muscular band dividing the right ventricle was located in the inferoseptal part of the latter, creating a diminutive cavity that had no communication with the main right ventricle but communicated with the left ventricle creating the false impression of a double-chambered left ventricle. This constitutes a rare variant of double-chambered right ventricle with unknown clinical implications.
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