It's performed to correct single ventricle birth defect. The normal heart has fours chamber - two upper atria and two lower ventricles. With single ventricle there is either a comlpete absence of a second ventricle or it is underdeveloped. Cauterization creates a second ventricle or enlarges a poorly developed one. Source(s): I'm a nurse.
Trivet definition, a small metal plate with short legs, especially one put under a hot platter or dish to protect a table. See more.
What is a Duvet? A duvet is a soft, flat bag filled with down or synthetic fibers. The name refers to this insert and is sold separately from duvet covers or other coordinating bed linens. If you hate making the bed, a duvet with a cover can be used instead of a top sheet and blanket, which can save time and stress.