患者男性,56岁,因反复发作性晕厥14h入院,患者于14h前始反复出现晕厥发作,每次发作持续时间约十几至二十几秒,可自行醒来,醒来后仍感胸闷,憋气,体力活动能力重度受限。患者既往体健,无心脏病史及长期应用抗生素或免疫抑制剂等病史。入院查体:T36.5℃P36次/min,R16次/min,BP100/ Male patient, 56 years old, due to recurrent syncope 14h admission, the patient began 14h before recurring syncope, each episode lasting about ten to twenty seconds, you can wake up, still feel chest tightness after waking up, Hold your breath, physical activity is severely restricted. Past physical health, no history of heart disease and long-term use of antibiotics or immunosuppressive agents and other medical history. Admission examination: T36.5 ℃ P36 times / min, R16 times / min, BP100 /