Female, 51 years old. He came to our hospital on August 26, 2014 due to "episodic confusion for 3 years and aggravation for 1 month". Since 2011, the patient has experienced episodic unconsciousness after falling asleep at night (1: 00-2: 00 a.m.) without obvious trigger, accompanied by facial twitching, sweating, and trembling hands. In severe cases, he can bite his tongue. Each attack lasts for about 20 minutes, and then relieves himself and falls asleep. Occasionally, the attack occurs before lunch and dinner, and the symptoms are milder than those at night, mainly manifested as slow reaction, dizziness and blurred vision. The attack occurs every 2 to 3 weeks. Blood glucose and electrolytes were not measured at the time of attack. When patients have signs of attacks such as sweating at night, eating can avoid the onset of other symptoms. The patient had been diagnosed with "epilepsy" in an external hospital, but no abnormalities were found on MRI of the head. Enhanced CT examination in outside hospital also found no pancreatic mass occupation. One month before admission, the frequency of episodes of the patient's symptoms increased, with episodes occurring almost every night. Past history and family history are not special. Physical examination showed no obvious abnormalities.
