Abstract
Abstract Background Bradyarrhythmias requiring permanent pacemaker (PPM) implantation are commonly described after cardiac surgeries. Numerous studies evaluated the demographic and clinical risk factors for PPM placement following aortic and mitral valve surgeries. However, a paucity of data exists when it comes to tricuspid valve surgery (TVS). Purpose Our study aimed to evaluate the incidence of PPM placement after TVS and investigate the demographic, clinical, and procedural risk factors associated with the need for a PPM. Methods We included 13 294 patients from the Medicare database who underwent isolated TV repair (N=1319 (10%)), isolated TV replacement (N=2123 (16%)), or concomitant TV repair or replacement with different combinations of surgical aortic valve replacement (SAVR), mitral valve repair or replacement (MVR), and coronary artery bypass graft (CABG). Patients who underwent TV surgery for endocarditis were excluded. The primary exposure of interest for the study was new pacemaker placement after TV surgery and before discharge, or within 30 days from discharge date. Each patient from the pacemaker group was matched to up to 3 controls from the no pacemaker group. Results Among the included patients, 2518 (18.9%) required a PPM placement after TVS. In the logistic regression including patients’ variables, subjects who needed PPM implantation were more likely to be women (64.4% vs. 57.6%, P<0.001) and had a higher prevalence of prior sternotomy (P=0.01), chronic kidney disease (P=0.03), heart failure (P=0.04) and tumor (P=0.02). Patients who underwent isolated TV replacement and TV replacement with concomitant surgeries had a significantly higher risk of PPM implantation when compared to isolated TV repair and TV repair with concomitant surgeries (P<0.0001) (Table). Conclusion Post-procedural PPM implantation is a very frequent complication of TVS, especially in TV replacement with or without concomitant left-sided heart surgeries. Numerous demographic and clinical factors are associated with an increased risk of PPM placement. Adequate risk stratification and counseling of patients before surgery decision is essential.Demographic & Surgical Risk Factors
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