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Published on: July 20, 2022
History of Lyme Disease as a Predictor of Atrial Fibrillation
Anna Szymanska1, Anna E Platek2, Miroslaw Dluzniewski1
1Department of Heart Diseases, The Medial Centre of Postgraduate Education, Warsaw, Poland.
Insights
Exposure to Borrelia burgdorferi, the bacterium causing Lyme disease, is linked to a higher risk of developing atrial fibrillation (AF). This suggests a potential connection between Lyme carditis and AF development.
Area of Science:
- Cardiology
- Infectious Diseases
- Epidemiology
Background:
- Atrial fibrillation (AF) is frequently linked to cardiac inflammation.
- Borrelia burgdorferi, a pathogen causing Lyme carditis, is a potential contributor to atrial inflammation.
Purpose of the Study:
- To investigate the association between serological evidence of Borrelia infection and the risk of developing AF.
- To determine if past Borrelia exposure is an independent risk factor for AF.
Main Methods:
- Cross-sectional study comparing 113 AF patients and 109 controls in sinus rhythm.
- Clinical evaluation, echocardiography, and assessment of anti-Borrelia IgG antibodies in all participants.
Main Results:
- Serological signs of Borrelia infection were significantly more prevalent in AF patients (34.5%) compared to controls (6.4%; p < 0.0001).
- Positive anti-Borrelia IgG antibodies emerged as a strong independent predictor of AF (OR 8.21; 95% CI 3.08-21.88; p < 0.0001).
Conclusions:
- Exposure to Borrelia species is associated with an increased risk of atrial fibrillation.
- Further research is needed to ascertain if early Lyme disease treatment can mitigate AF risk.
Abstract:
In many cases, atrial fibrillation (AF) is associated with a history of cardiac inflammation. One of the potential pathogens responsible for atrial inflammation might be Borrelia burgdorferi - a pathogen involved in Lyme carditis. This study aimed to assess whether the serological history of Borrelia infection was associated with the risk of AF. The study included 113 AF patients and 109 patients in sinus rhythm. All patients underwent a clinical evaluation, echocardiography and had their blood taken for the assessment of anti-Borrelia IgG antibodies. Patients with AF compared with the non-AF group had more often serological signs of Borrelia infection (34.5% vs 6.4%; p <0.0001). The multivariate analysis showed that positive results for anti-Borrelia IgG antibodies were a strong independent predictor of AF (odds ratio 8.21; 95% confidence interval 3.08 to 21.88; p < 0.0001). In conclusion, presented data show that exposure to Borrelia spp. infection is associated with an increased risk of AF. Whether the early treatment of Lyme disease lowers the risk of AF development remains to be explored.
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