title: Chronic subdural hematoma after open heart surgery.
abstract: Three cases of chronic subdural hematoma after open heart surgery are reported. In all cases, computed tomography scans revealed subdural accumulations of high density after cardiac surgery. The high-density areas changed into isodensity or low density with mass effect within 2 or 3 weeks. Anticoagulant (heparin) and a tearing of bridging veins after a rapid change of the brain volume by administration of mannitol can be a cause of chronic subdural hematoma. Forty-five to 60 mL of liquefied hematoma was aspirated and the outer membrane of the hematoma cavity was recognized by a trepanation.
mesh_terms: D000328:Adult; D001810:Blood Volume; D001921:Brain / Q000503:physiopathology; D006348:Cardiac Surgical Procedures / Q000009:adverse effects*; D005112:Extracorporeal Circulation / Q000009:adverse effects; D005260:Female; D006408:Hematoma, Subdural / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008875:Middle Aged; D011859:Radiography