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例1 患者男性,52岁,有心动过速史,此次发作30min。图1见心室率230次/min,R-R0.26s,匀齐,QRS为室上性,连续Ⅱ导联记录中,在胸骨左缘第4肋间处以中等力量捶击,仅1次即终止PSVT,捶击产生1个畸形QRS波与前QRS相距0.24s,恢复窦律后见有少数房性早搏,经食管心房调搏电生理检查窦房结功能正常,程序刺激未诱出PSVT及双径路现象。胸片(-)、心动图、心音图和心功能检查正常。
Example 1 patients male, 52 years old, have a history of tachycardia, the episode 30min. Figure 1, ventricular rate of 230 times / min, R-R0.26s, homogeneous Qi, QRS for the supraventricular tachycardia, continuous Ⅱ lead record, in the sternal left intercostal space at the fourth interim force thump, only 1 Termination of PSVT, hammering produce a deformed QRS wave 0.24s with the previous QRS, after sinus rhythm recovery to see a small number of premature beats, transesophageal atrial pacing electrophysiological examination of sinus node function, the program did not induce PSVT stimulation and Dual path phenomenon. Chest radiographs (-), cardiogram, phonocardiogram and cardiac function tests were normal.