1病例报告患者男,55岁。因头部外伤、头痛3 h入院。查体:生命体征平稳,意识清楚,左枕部头皮肿胀,神经系统检查无异常。头颅CT扫描示右额叶局限性脑挫裂伤。给予止血、抗炎、脱水和补液等治疗。1天后仍感头痛、恶心,复查CT示脑挫裂伤好转,蛛网膜下腔出血。但患者仍然精神委靡、头晕、焦虑,睡眠和饮食差,腹部胀痛、恶心、呕吐。第7天查血钠119.0 mmol/L,CT 1 case report Patient male, 55 years old. Due to head injury, headache 3 h admission. Physical examination: vital signs stable, clear consciousness, swelling of the left occipital scalp, nervous system examination no abnormalities. Head CT scan showed limited frontal lobe cerebral contusion. Give hemostasis, anti-inflammatory, dehydration and rehydration therapy. After 1 day still feeling a headache, nausea, CT examination showed improvement of cerebral contusion, subarachnoid hemorrhage. However, patients are still mentally exhausted, dizzy, anxious, poor sleep and diet, abdominal pain, nausea and vomiting. On the seventh day, serum sodium 119.0 mmol / L, CT