Project description:We present the first imaging registry of the progressive isolation of an apical chamber of the right ventricle caused by the hypertrophy of the moderator band generated from the hemodynamic effect of a ventricular septal defect, leaving the apex of the right ventricle as an accessory chamber of the left ventricle. (Level of Difficulty: Advanced.).
Project description:VACTERL association is a non-random association of birth defects of unknown etiology derived from structures of embryonic mesoderm. The common cardiac defects seen with VACTERL association are ventricular septal defects, atrial septal defects, and tetralogy of Fallot. We present a 2-year-old child with VACTERL association in whom we detected double-chambered left ventricle on transthoracic echocardiography.
Project description:The rare case of an adult with a double-chambered left ventricle was revealed using multimodality imaging using echocardiography and cardiac magnetic resonance imaging in a 38-year-old asymptomatic male patient. The congenital malformation was dominated by a second, coarsely trabeculated muscular shelf dividing the left ventricle into 2 chambers without signs for left ventricular inflow or outflow tract obstruction. The partition wall did not show any signs for intramyocardial fibrosis in late gadolinium enhancement cardiovascular magnetic resonance imaging. Flow measurements excluded a relevant intracardial shunt across the additive perimembranous ventricular septal defect. There were no signs for global right and left ventricular dysfunction with left and right ventricular volumes and ejection fraction within normal limits. A conservative approach was recommended. In summary, we are able to present the case of an adult with a double-chambered left ventricle with a second muscular "septum" partially dividing the left ventricular cavity without causing a relevant impact on cardiac function or clinical signs for heart failure.
Project description:BackgroundDouble chambered left ventricle (DCLV) is a rare anatomical variant of the left ventricular structure characterized by the division of the left ventricle into two distinct chambers due to abnormal muscle bundles or septa. This anomaly typically results in primary and secondary chambers within the left ventricle. Due to the lack of conspicuous clinical symptoms, DCLV is often overlooked.Case summaryThe first patient was a 69-year-old male experiencing intermittent chest tightness for several weeks. Transthoracic echocardiography indicated the presence of Type A DCLV, which was subsequently confirmed by 3D echocardiography and cardiac magnetic resonance imaging. An additional case is also worthy of note, during a routine transthoracic echocardiographic examination of a 48-year-old male, we unexpectedly discovered Type B DCLV. His unique cardiac structure was clearly demonstrated through 3D echocardiography.DiscussionDouble chambered left ventricle is a rare structural heart malformation often overlooked due to atypical symptoms. This paper presents two cases of DCLV, illustrating two distinct classifications. Comprehensive understanding of the imaging manifestations of DCLV is imperative for accurate clinical diagnosis.