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李×,男,18岁,因左踝关节扭伤就诊,乡卫生院予以四环素0.5每日三次口服,24小时后感心慌气促和皮肤搔痒转我院。既往无心脏病史。体检:T37.8℃,R24次/分,P112次/分,BP90/60毫米汞柱,胸背部皮肤有荨麻疹并有抓痕。肺部呼吸音正常,心界无扩大,心率112次/分,律不齐,早搏3次/分,心尖区第1心音减弱,无杂音。实验室检查:血象中嗜酸性细胞398个/每立方毫米,谷草转氨酶>40单位(赖氏法)。心电图示:窦性心动过速,偶发室性期前收缩,STv_1v_2avF水平下移0.075毫伏,T波v_3倒置。M超声心动图示各房室径线正常。初诊:过敏性心肌
Lee ×, male, 18 years old, due to left ankle sprain treatment, township hospitals to tetracycline 0.5 three times daily orally, 24 hours after feeling palpitated and skin itching go to our hospital. No previous history of heart disease. Physical examination: T37.8 ℃, R24 times / min, P112 beats / min, BP90 / 60 mmHg, urticaria on the thoracodorsal skin and scratches. Pulmonary breath sounds normal, no expansion of the heart, the heart rate 112 beats / min, irregular heartbeat, premature beats 3 beats / min, apex of the first heart sound weakened, no noise. Laboratory tests: blood eosinophils 398 / mm3, aspartate aminotransferase> 40 units (Lai’s method). ECG: sinus tachycardia, occasional ventricular contraction, STv_1v_2avF level down 0.075 millivolt, T wave v_3 inversion. M echocardiography showed normal atrioventricular line. New diagnosis: Allergic myocardium