正常颅压积水(NPH)多继发于蛛网膜下腔出血后。原因不明者,又称特发性NPH,报道较少,现将我科诊治的3例报道如下: 例1:女,58岁,农民,半文盲。因记忆力下降,行走不稳逐渐加重半年入院。半年来患者说话减少,健忘,外出不知归路,二月前患者出现行走不稳,近一月发生尿失控。既往无“中风”病史,无头颅外伤及脑炎史。 检查:神情,反应迟钝,颅神经正常,四肢肌张力增高,以两下肢明显。双下肢腱反射亢进,Babin-Ski征阳性,感觉正常,眼底无水肿,出血。血压14.6 Normal intracranial hydronephrosis (NPH) secondary to subarachnoid hemorrhage. For unknown reasons, also known as idiopathic NPH, less reported, now my clinic treatment of 3 cases are reported as follows: Example 1: Female, 58 years old, farmer, semi-literate. Due to decreased memory, walking instability gradually increased six months admission. Six months to reduce the patient to speak, forgetful, I do not know go home, patients with walking unsteadily in February, urine out of control in January. No prior history of “stroke”, no history of head trauma and encephalitis. Check: look, unresponsive, normal cranial nerves, limb muscle tension increased to two obvious lower limbs. Double lower extremity tendon hyperreflexia, Babin-Ski sign positive, feeling normal, fundus without edema, bleeding. Blood pressure 14.6