1临床资料患者,女,67岁,因“胸闷、心悸、呼吸急促3个月,加重伴食欲不振、消瘦14 d”入院。入院前曾行心电图检查,提示窦性心动过速、频发房性早搏,给予“胺碘酮、倍他乐克”等药物治疗3个月,症状无好转。入院前14 d无诱因出现恶心、呕吐、稀水样便,伴畏寒发热,体温达39℃,胸闷 1 clinical data, female, 67 years old, due to “chest tightness, palpitations, shortness of breath 3 months, increased with loss of appetite, weight loss 14 d” admission. Pre-hospital ECG had ECG, suggesting sinus tachycardia, frequent atrial premature beats, given “amiodarone, metoprolol” and other drugs for 3 months, no improvement in symptoms. No incentive for 14 days before admission nausea, vomiting, watery stools, with chills and fever, body temperature of 39 ℃, chest tightness