1) Cardiac procedure 
A Ventriculotomy is any intrusion into a ventricle. It may specifically refer to: ...
<procedure> Incision into a ventricle; e.g., into the cerebral third ventricle for the relief of hydrocephalus or into a cardiac ventricle to surgically correct an abnormality.. ... Origin: ventriculo-+ G. Tome, incision ... (05 Mar 2000) ... 
(ven-trik″u-lot´ә-me) incision of a ventricle.
Type: Term Pronunciation: ven-trik′yū-lot′ŏ-mē Definitions: 1. Incision into a ventricle; into the cerebral third ventricle for the relief of hydrocephalus or into a cardiac ventricle to surgically correct an abnormality.
ventriculotomy A surgical incision of a ventricle (a chamber of an organ; for example, the four connected cavities or hollow spaces, in the central portion of the brain and the lower two chambers of the heart are called ventricles).