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患者男性,65岁,因反复发作性心悸、胸闷、冷汗1周入院。心电图检查:窦性心动过缓,心率48次/min。作阿托品试验(附图),试验前为窦性心律,心率48次/min。静注阿托品1mg后Ⅱ导联即刻心率增至75次/min,ST 段弓背向下抬高0.3mV,且 P 波由直立转为倒置,P-R>0.20s。尔后,虽心率逐渐减慢至68次/min,但 ST 段抬高达0.4—1.0mV,并与 T 波的升肢融合成单向曲线。4min 时心率72次/min,ST 段抬高下降至0.15mV,T 波低平,且 P 波由倒置转为直立。7-15min 心率72次/min,ST-T 恢复
Male patient, 65 years old, due to recurrent episodes of heart palpitations, chest tightness, cold sweat 1 week admission. ECG: sinus bradycardia, heart rate 48 beats / min. Atropine test (with photos), sinus rhythm before the test, heart rate 48 beats / min. The intravenous injection of atropine 1mg heart rate immediately increased to 75 times / min, ST segment elevation of 0.3mV back, and P wave from upright to inverted, P-R> 0.20s. Later, although the heart rate gradually slowed down to 68 beats / min, but the ST segment elevation of 0.4-1.0mV, and ascending wave T-wave merged into a one-way curve. 4min heart rate 72 beats / min, ST segment elevation decreased to 0.15mV, T wave low flat, and the P wave from inverted to upright. 7-15min heart rate 72 beats / min, ST-T recovery