Relationship between mitral annular calcification and first degree atrioventricular block in elderly

Abstract

Aim: In this study, we aimed to reveal the relationship between these two degenerative processes, mitral annular calcification, and first-degree AV block.

Materials and Methods: The data of 2,347 patients over the age of 65 who were examined in the cardiology outpatient clinic. A total of 389 patients with echocardiography results and 12-lead ECGs obtained at the same visit were included in their electronic records. The patient population was divided into two groups as those with or without first-degree AV block, and those with or without mitral annular calcification.

Results: Considering the relationship between mitral annular calcification and first-degree AV block, first-degree AV block was observed more frequently in patients with mitral annular calcification, and this was statistically significant. [(Odds ratio: 6.881; 3.107 – 15.236 (95% CI), p<0.001)].

Conclusion: In our study, it was observed that first-degree AV block was more common in patients with mitral annular calcification. When these conditions are encountered in clinical follow-ups, the association should be kept in mind, and it should be remembered that a conduction defect may develop in patients with mitral annular calcification or valve pathology may occur in patients with a conduction defect.