Aortic knob calcification assessed by preoperative chest X-ray was an independent predictor of the requirement for permanent pacemaker implantation after TAVI (OR 2.793).
Cohort (n=110)
No
Does aortic knob calcification predict the requirement for permanent pacemaker implantation in patients undergoing TAVI?
Aortic knob calcification assessed on routine preoperative chest X-ray is a simple, cost-effective independent predictor of the need for permanent pacemaker implantation following TAVI.
Effect estimate: OR 2.793 (95% CI 1.146-6.806)
p-value: p=0.024
Introduction: One of the predictable and preventable complications that may occur after transaortic valve implantation (TAVI) is the requirement for permanent pacemaker (PPM) implantation.Aim: To evaluate the relationship between aortic knob calcification (AKC) assessed by preoperative chest X-ray and the requirement for post-procedure PPM implantation for patients who underwent TAVI.Material and methods: This study was conducted with 110 patients who underwent TAVI with a Myval transcatheter heart valve in our center between June 2020 and December 2022.The patients' electrocardiograms were monitored after the procedure.The patients were evaluated in two groups according to whether they required PPM.The AKC grading was performed by examining the routine posterior-anterior chest radiographs of all patients participating in the study.Results: A PPM was placed in 17 (15.4%)patients after TAVI.The remaining 93 patients formed the control group.AKC (p = 0.002) and membranous septum (p = 0.013) statistically significantly differed between the PPM and control groups; however, no significant difference was detected in relation to the other parameters.In the univariable (p = 0.004) and multivariable (p = 0.024) regression analyses performed to identify predictors of PPM requirement after TAVI, AKC was found to be both a dependent and independent predictor.Conclusions: AKC can be used as a cost-effective and easily accessible parameter for predicting the post-procedure PPM requirement in patients who have undergone TAVI. Key words: aortic knob
Özderya et al. (Mon,) conducted a cohort in Aortic stenosis requiring TAVI (n=110). Aortic knob calcification (AKC) vs. Absence or lower grade of AKC was evaluated on Requirement for permanent pacemaker (PPM) implantation after TAVI (OR 2.793, 95% CI 1.146-6.806, p=0.024). Aortic knob calcification assessed by preoperative chest X-ray was an independent predictor of the requirement for permanent pacemaker implantation after TAVI (OR 2.793).
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