患者男性,47岁。1990年7月8日午餐吞咽馒头时感心慌,脉搏细数,伴心前区疼痛而入院。体检:发育正常,血压16/10kPa,呼吸平稳,无发绀,心率规则,80次/min,各膜未闻及杂音,两肺呼吸音清晰。腹软,肝脾来触及。为明确诱发心慌原因,于1990年7月10日先作12导联常规心电图及吞咽动作时心电图,均无异常发现,随后令患者吃面每一口,以心电图连续观察吞咽前后心律,在吞咽食物后8s,记录到短阵房性心动过速,历时7s,令 Male patient, 47 years old. July 8, 1990 when swallowed bread lunch panic, pulse breakdown, with precordial pain and admission. Physical examination: normal development, blood pressure 16 / 10kPa, stable breathing, no cyanosis, heart rate rules, 80 beats / min, the membrane did not smell and murmur, clear breath sounds of both lungs. Abdomen soft, liver and spleen to touch. In order to clarify the cause of palpitation, on July 10, 1990 before the 12-lead conventional electrocardiogram and swallowing ECG, no abnormal findings, and then make each patient eat noodles, ECG continuous observation before and after swallowing the heart rate, swallowing food After 8s, recorded a short burst of atrial tachycardia lasted 7s, so