3.6 Other complications
CAG examination in all patients showed no compression of the anterior descending, posterior descending, and posterior left ventricular arteries by the LBBAP electrodes. The contrast agent through the arterial vessels did not penetrate the pacing electrode. There were no complications, such as acute chest tightness, chest pain, angina pectoris, acute myocardial infarction, cardiac tamponade, or broken pacing electrodes during and within 24 h after surgery.