| Purpose: Of hypertrophic obstructive cardiomyopathy (HOCM) percutaneous septal myocardial financial operation (PTSMA) delayed atrioventricular block after its causes and related factors for analysis.Material and method: Selected 60 regular PTSMA the HOCM patients, according to postoperative atrioventricular block of time into late atrioventricular block group housing and no later than the AV block group housing, close monitoring of intraoperative and postoperative ECG changes , Comparative analysis based on clinical observation of delayed postoperative atrioventricular an analysis of its causes.Results:The degree of postoperative delayed atrioventricular block 3 6 patients, delayed a degree atrioventricular block in patients with 9 cases, including with complete right bundle branch block in 12 patients, of which the longest 1 patient 3 degree AV block duration of 196 hours, refused to implant a permanent pacemaker, intermittent alternating with sinus rhythm and 6 months follow-up for the second type with a complete right bundle branch block, The remaining patients were normal prior to discharge into. Acute surgery in patients with atrioventricular block, 12 cases, of which 11Ⅲ°AVB patients, including 9 of human transient, and 2 cases of intraoperative conversionâ…¡Â°â… AVB back to the ward within 24 hours after the switch were normal sinus rhythm, intraoperativeâ… Â°AVB patients 1, sub-acute patients with atrioventricular conduction block in 5 cases, whichâ… Â°AVB3 cases,Ⅱ°AVB1 cases,Ⅲ°AVB1 cases, there were a short time after converted to normal sinus rhythm, no record of permanent pacemaker implantation.Conclusion : PTSMA delayed postoperative atrioventricular block and ventricular septal thickness, alcohol consumption, alcohol injection speed, the interval between ablation supported by the regional blood supply, cardiac ablation, and patients who experienced edema related, may in a short time is a benign self-healing stress response. |