title: Negative pressure drainage after craniotomy.
mesh_terms: D000328:Adult; D001919:Bradycardia / Q000209:etiology*; D002648:Child; D003399:Craniotomy; D004322:Drainage; D006801:Humans; D007022:Hypotension / Q000209:etiology*; D007431:Intraoperative Complications / Q000209:etiology; D008297:Male; D008875:Middle Aged