心脏起搏时,在安置电极导管的过程中,尽管在X线下操作,并在心电监护下进行,但往往可在不知不觉中发生穿孔。轻者或电极在心肌内,由于及时调整电极位置,可不出现穿孔的临床迹象,而获得满意起搏效果。然而一旦电极穿破心肌抵达心包腔内,将会导致心包填塞造成严重后果。因而手术过程中,应注意心肌穿孔的识别,以便及时处理。 During cardiac pacing, perforation can often occur unknowingly during placement of the lead, despite being operated under x-ray and under ECG monitoring. Light or electrode in the myocardium, due to the timely adjustment of the electrode position, no clinical signs of perforation, and obtain satisfactory pacing effect. However, once the electrode penetrates the myocardium and reaches the pericardial cavity, it can lead to serious consequences of tamponade. Therefore, the surgical process, should pay attention to the identification of myocardial perforation for timely processing.