Aberrant muscle bundle of the right ventricle.

Aberrant muscle bundle of the right ventricle.

Two cases of aberrant muscle bundle causing obstruction to right ventricular outflow are described. The relatively large number of cases collected by authors seems to indicate that the condition is more common than generally suspected. The fact that the aberrant muscle traverses the right ventricular cavity from the region of the crista supraventricularis to the lower part of the anterior wall ...

Anomalous muscle bundle of the right ventricle. Hemodynamic consequences and surgical considerations.

ANOMALOUS muscle bundles in the right ventricle, although common, are not usually responsible for significant functional disturbances. The primary purpose of this report is to present seven cases in which anomalous musele bundles of the right ventricle were responsible for confusing situations during corrective surgery. In six instances, anonialous muscle bundles of the right ventricle were ass...

Anomalous muscle bundle of the right ventricle. Its recognition and surgical treatment.

This communication presents our experience with 14 cases of congenital heart disease associated with anomalous muscle bundle inside the right ventricular cavity dividing it into two chambers. The clinical picture, natural history, and diagnostic characteristics are described. It can be diagnosed by right ventricular cineangiogram in the anteroposterior position. It can be resected surgically, s...

Right ventricular anomalous muscle bundle.

Building the right ventricle.

Abnormal development of the arterial pole of the heart underlies a significant fraction of congenital heart defects. Critical steps in arterial pole development are formation of the myocardial outflow tract (or conotruncal region) and its subsequent division into separate left and right ventricular outlets. Division of the cylindrical outflow tract is a complex morphogenetic process driven by c...