论文部分内容阅读
临床及食管心房调搏资料患者男性,22岁。因间歇性胸闷一周活动时明显,不伴发热而入院。查体:心肺正常。抗“O”300u,血沉6mm/h,谷草转氨酶40u,胸片心肺膈正常,心电图示窦性心动过缓(54次/分)。1990年3月31日作食管心房调搏检查,用分级递增性S_1-S_1法作窦房结恢复时间测定,患者自身窦率65次/分,首级90次/分,逐级递增20次/分,定时30秒。至频率150次/分(S_1-S_1400ms)定时30秒刺激,终末6秒连续记录V_1导联(见附图)。图示刺激信号固定规则出现,呈3∶2下传心室,S-R间期正常(0.24秒)→延长(0.28秒或0.32秒)→刺激信号脱落(图解S_c),周期性出现,考虑为Ⅱ度Ⅰ型房室传导阻滞。每个周期的第一个刺
Clinical and esophageal atrial pacing information patients male, 22 years old. Due to intermittent chest tightness during a week of activity significantly, without fever and admission. Physical examination: normal heart and lungs. Anti-“O” 300u, erythrocyte sedimentation rate 6mm / h, aspartate aminotransferase 40u, chest X-ray cardial diaphragmatic normal, ECG showed sinus bradycardia (54 beats / min). March 31, 1990 for esophageal atrial pacing examination, with incremental S_1-S_1 method for determination of sinus node recovery time, the patient’s sinus rate of 65 beats / min, the first 90 beats / min, step by step increase of 20 / Min, timing 30 seconds. To the frequency of 150 beats / min (S_1-S_1400ms) timing 30 seconds stimulation, the end of 6 seconds continuous recording V_1 lead (see photo). The graph shows the fixation of the stimulation signal appears, 3: 2 downlink ventricle, SR interval is normal (0.24 seconds) → extended (0.28 seconds or 0.32 seconds) → Stimulation of signal shedding (S_c), occurs periodically, Ⅰ type atrioventricular block. The first stab of each cycle