Key result
Acute coronary syndrome (OR 18.86) and beta-blocker usage (OR 12.08) were strongly associated with the resolution of atrioventricular block during hospital follow-up.
Why the study?
The study aimed to determine clinical factors related to the recovery of the conduction system in patients presenting with atrioventricular block.
Cohort (n=178)
No
Odds Ratio: 18.863 (95% CI 3.776–94.222)
p-value: p=<0.001
Identifying reversible causes of AV block, such as acute coronary syndrome, beta-blocker use, and high creatinine, can help prevent unnecessary permanent pacemaker implantation.
May support expectant management in younger AV block patients; leaves open need for prospective validation of recovery predictors.
Aim: In this study, our aim was to determine clinical factors related to the recovery of the conduction system in patients presenting with atrioventricular (AV) block. Materials & methods: A total of 178 patients who were hospitalized at a tertiary center due to second- or third-degree AV block were retrospectively analyzed. Results: During hospital follow-up, 19.1% of patients had fully recovered from AV block. According to a logistic regression analysis; younger age (odds ratio [OR]: 0.950; 95% CI: 0.932–0.967; p < 0.001), presenting with acute coronary syndrome (OR: 18.863; 95% CI: 3.776–94.222; p < 0.001), β-blocker usage (OR: 12.081; 95% CI: 3.498–41.726; p < 0.001), high serum creatinine levels (OR: 4.338; 95% CI: 2.110–8.918; p < 0.001) and no calcification at the aortic valve (OR: 0.189; 95% CI: 0.050–0.679; p = 0.011) were found to be related to resolution of AV block. Conclusion: It is crucial to know the reversible causes of AV block to prevent unnecessary permanent pacemaker implantation.
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Yılmaz et al. (2020) conducted a cohort in Second- or third-degree AV block (n=178). Acute coronary syndrome vs. No acute coronary syndrome was evaluated on Resolution of AV block (OR 18.863, 95% CI 3.776-94.222, p=<0.001). Acute coronary syndrome (OR 18.86) and beta-blocker usage (OR 12.08) were strongly associated with the resolution of atrioventricular block during hospital follow-up.
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