Anomalous Infundibular Muscle Bundles: Also Known as Anomalous Muscle Bundles of the Right Ventricle and as Double-Chambered Right Ventricle

Statistics

In the Congenital Cardiac Pathology Database of Boston Children’s Hospital, the diagnosis of anomalous muscle bundles of the right ventricle was made in 33 postmortem patients.

The diagnosis of double-chambered right ventricle was made in 17 of our postmortem congenital heart patients.

These two diagnoses were made in a total of 50 of 3216 autopsied patients with congenital heart disease (1.55%).

• Gender: males, 9; females, 10; males/females, 0.9. The gender was not known by us in one consultation. No gender predominance was found.

• Age at death: mean, 5.2 years; standard deviation, ±13.1 years; minimum, 1 day; maximum, 55 years. The age at death was not known by us in one consultation.