Key result
Following SURD aortic valve implantation, new LBBB occurred in 33.5% of patients and persistent LBBB at 1 year in 17.5%, with lower Euroscore II and BMI identified as significant predictors.
Why the study?
Conduction disorders after AVR are associated with complete atrioventricular block and permanent pacemaker implantation, but risk factors for new and persistent LBBB after SURD-AVR require assessment.
What are the predictors of new and persistent new LBBB 1 year after sutureless and rapid-deployment aortic valve implantation?
Cohort (n=200)
No
What are the predictors of new and persistent new LBBB 1 year after sutureless and rapid-deployment aortic valve implantation?
Lower Euroscore II, lower BMI, atrial fibrillation, and shorter hospital stays are associated with the development of new or persistent LBBB 1 year after sutureless aortic valve implantation.
Introduction: Conduction disorders following aortic valve replacement therapy (AVR), either surgical or percutaneous, are related to a higher risk of complete atrioventricular block and permanent pacemaker implantation (PPI). Aim: The objective of this study was to assess risk factors regarding the incidence of new postoperative and persistent new left bundle branch block (LBBB) 1 year after the implantation of a sutureless/rapid-deployment (SURD) aortic valve prosthesis. Material and Methods: The current study included 200 consecutive patients treated with isolated or concomitant AVR between May 2014 and May 2017 at the Department of Cardiac Surgery in Pasawa with SURD aortic valve EDWARDS INTUITY EliteTM implantation. The patients were divided according to the presence of new postoperative LBBB (67 patients, 33.5%) and persistent new LBBB 1 year after AVR (35 patients, 17.5%). A comparative analysis was performed between patients with and without new LBBB after AVR and those with and without persistent LBBB 1 year after AVR. Univariate and multivariate regression analyses were conducted to extract the risk factors of LBBB occurrence. Results: Among the risk factors for the lack of new LBBB development after AVR, Euroscore II (p < 0.001) was found, while for the occurrence of persistent new LBBB 1 year after AVR, atrial fibrillation (p = 0.001), length of hospital stay (p = 0.001) and body mass index (p = 0.004) were noted. Conclusions: Patients with new or persistent new LBBB 1 year after AVR had lower mean Euroscore II and BMI values. Their stay at the hospital was also shorter.
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Januszek et al. (2023) conducted a cohort in Aortic valve replacement (n=200). SURD aortic valve EDWARDS INTUITY EliteTM implantation was evaluated on New postoperative LBBB and persistent new LBBB 1 year after AVR. Following SURD aortic valve implantation, new LBBB occurred in 33.5% of patients and persistent LBBB at 1 year in 17.5%, with lower Euroscore II and BMI identified as significant predictors.
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