The Prevalence of Permanent Pacemaker Implantation After Open-Heart Surgeries; Eight Years of Experience in Tehran Heart Center Publisher Pubmed



Yazdani KO^{1, 2} ; Shafiee A³ ; Heidari A^{3, 4} ; Ahmaditafti H⁵ ; Yaminisharif A^{6, 7}
Source: BMC Cardiovascular Disorders Published:2023

Abstract

Background: We aimed to evaluate the prevalence of permanent pacemaker implantation (PPI) among open-heart surgery patients. Methods: We reviewed data from 23 461 patients undergoing open-heart surgeries between 2009 and 2016 in our heart center in Iran. A total of 18 070 patients (77%) had coronary artery bypass grafting (CABG), 3 598 (15.3%) valvular surgeries, and 1 793 (7.6%) congenital repair procedures. Finally, 125 patients who received PPI following open-heart surgeries were enrolled in our study. We defined the demographic and clinical characteristics of all these patients. Results: PPI was required in 125 (0.53%) patients with an average age of 58 ± 15.3 years. The average hospitalization time after surgery and waiting time for PPI were 19.7 ± 10.2 and 11.4 ± 6.5 days, respectively. Atrial fibrillation was the dominant pre-operative cardiac conduction abnormality (29.6%). Also, the primary indication for PPI was complete heart block in 72 patients (57.6%). Patients in the CABG group were significantly older (P = 0.002) and were more likely to be male (P = 0.030). The valvular group longer bypass and cross-clamp times and had more left atrial abnormalities. In addition, the congenital defect group was younger and had longer ICU stay times. Conclusions: Based on our study findings, PPI was required in 0.53% of patients following open-heart surgery due to damage to the cardiac conduction system. The current study paves the way for future investigations to identify possible predictors of PPI in patients undergoing open-heart surgeries. © 2023, The Author(s).