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一向认为脑梗塞发生于夜间较白天为多,而症状通常在醒来时被发现.本文回顾性地研究了一组连续66例非进展性脑梗塞住院病人的起病时间及CT所见的梗塞类型.结果不支持动脉粥样化血栓性脑栓塞主要由血液动力学因素所决定的观点.1984年1月1日至1985年9月1日,共有99例病人诊断为脑梗塞,为便于与过去的研究相比较,作者采用了“卒中急性发作”的同样标准,即症状必需6小时内达到最高峰,持续时间至少3周,同样将一天分为4个时区.99例病人中33例因不合本文标准被删除.另66例病人在住院期间进行CT检查,若起病不足3天扫描未见明显梗塞者,一般约在10天后复查.CT扫描将梗塞分为四型:(1)主要动脉干区域梗塞.(2)腔隙性梗塞,(3)分界区梗塞(在皮层主要血管干之间或大脑中动脉浅深支间).(4)未见损害者或48小时内由于病情严重来不
It has always been assumed that cerebral infarction occurs more frequently during the night than during the day, and symptoms are usually found on waking.This study retrospectively studied the onset of disease in a series of 66 consecutive patients with non-progressive cerebral infarction and infarcts seen on CT Type.Results do not support the view that atherothrombotic cerebral embolism is mainly determined by hemodynamic factors.From January 1, 1984 to September 1, 1985, a total of 99 patients diagnosed as cerebral infarction, in order to facilitate and In contrast to previous studies, the authors used the same criteria for acute extremities of stroke, where the symptoms peaked within 6 hours for a minimum of 3 weeks, and also divided the day into 4 time zones.39 Of the 99 patients 66 cases of patients undergoing CT examination during hospitalization, less than 3 days if the onset of scanning no obvious infarction, usually about 10 days after the review .CT scan infarction is divided into four types: (1 (2) lacunar infarction, (3) borderline infarction (between the main cortical trunk or between the deep middle branches of the middle cerebral artery) (4) Seriously not to