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.
A duvet is essentially a soft flat bag filled with down, feathers or a synthetic alternative. It is recommended that duvets are inserted into a removable cover, much like a pillow and pillow case. Duvets and covers are designed to be used alone (with no sheets) because the insert can be removed and the outer âbagâ can be laundered, but many people use them with sheets anyway.