Traynelis V C
Division of Neurosurgery, University of Iowa College of Medicine, Iowa City.
Clin Geriatr Med. 1991 Aug;7(3):583-98.
Elderly individuals may develop an asymptomatic subdural hematoma as a result of minor trauma, anticoagulant therapy, or other factors. A membrane forms around the initial clot, and this membrane becomes the source for many smaller hemorrhages. Because of these rehemorrhages, the hematoma slowly enlarges with time and ultimately becomes symptomatic. The most common symptoms are headache, changes in mentation, and hemiparesis. Chronic subdural hematomas are accurately diagnosed by either CT or MRI, and the treatment consists of surgical evacuation. After successful management, most patients return to their premorbid level of functioning.
老年人可能由于轻微创伤、抗凝治疗或其他因素而出现无症状的硬膜下血肿。在最初的血凝块周围会形成一层膜，而这层膜会成为许多较小出血的源头。由于这些再出血，血肿会随着时间缓慢增大，最终出现症状。最常见的症状是头痛、精神状态改变和偏瘫。慢性硬膜下血肿通过CT或MRI可准确诊断，治疗方法为手术清除血肿。成功治疗后，大多数患者可恢复到病前的功能水平。
