[患者,女性,31岁,工人。因阵发性抽搐5年,加重4个月于1990年7月急诊入院。患者5年前无明显诱因感右下肢麻木、抽搐,不伴意识障碍,每日发作1～2次,每次持续几十秒。到医院检查:血钙46mg/L。服用钙剂及维生素D后,病情有所好转。服药1个月病人自动停药。4个月前剖腹产一男婴,此后抽搐发作频繁且严重。入院前20d,患者突然意识丧失,四肢抽搐持续约1min,以后每3～4d出现1次类似发作直至入院。1988年开始出现双眼视力下降,以后逐渐加重。无颈部手术史。家族无类似病史。查体:表情淡漠,智力正常,双眼视力0.1。甲状腺不肿大,心、肺、消化道及骨骼系统无明显异常,右侧肢体肌张力略高。沃斯特克(Chvostek)征阳性(轻叩面部肌肉或面神经时引起的面肌痉挛),特鲁索(Trousseau)征阳性(压迫某 [Patient, female, 31 years old, worker. Due to paroxysmal convulsions for 5 years, aggravating 4 months in July 1990 emergency admission. 5 years ago, no obvious incentive to patients with right lower limb numbness, convulsions, unconsciousness disorder, 1 to 2 times a day attack, each lasting tens of seconds. To the hospital: calcium 46mg / L. After taking calcium and vitamin D, the condition has improved. Patient medication for 1 month automatically discontinued. Cessation of a baby 4 months ago, since the seizures frequent and serious. 20d before admission, the patient suddenly lost consciousness, convulsions limbs continued for about 1min, after every 3 ~ 4d appeared a similar episode until admission. Beginning in 1988 binocular vision decreased, then gradually increased. No neck surgery history. No similar family history. Examination: apathy, normal intelligence, eyesight 0.1. Thyroid does not enlarge, heart, lung, digestive tract and skeletal system no obvious abnormality, the right limb muscle tone slightly higher. Chvostek sign positive (hemifacial spasm caused by tapping of facial muscles or facial nerve), Trousseau sign (positive