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对18例首次埋藏起搏器时及更换第2只时描记的心腔内心电图和测得的起搏阈电压值进行分析。认为埋藏起搏后阈压值会增高(P<0.01);心腔内心电图 ST 段略有降低(P<0.05),形态无多大变化,且与阈电压无规律可循。
The echocardiogram and the measured pacing threshold voltage were analyzed in 18 cases with the first pacemaker implanted and the second one replaced. The threshold value of buried pacing was increased (P <0.01). The ST segment of cardiac electrocardiogram was slightly decreased (P <0.05), and the morphology did not change much, and the threshold voltage was irregularly followed.