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Third-degree heart block associated with lyme carditis: review of published cases
Joseph D Forrester1, Paul Mead2
1Epidemic Intelligence Service Program, Division of Scientific Education and Professional Development Bacterial Disease Branch, Division of Vector-Borne Diseases, National Center for Emerging and Zoonotic Infectious Disease, Centers for Disease Control and Prevention, Atlanta, Georgia.
Insights
Lyme carditis, a severe heart complication of Lyme disease, can cause fatal third-degree heart block. Prompt recognition of at-risk patients is crucial for timely treatment and improved outcomes.
Area of Science:
- Cardiology
- Infectious Diseases
- Medical Literature Review
Background:
- Lyme carditis is an uncommon manifestation of Lyme disease.
- It typically involves atrioventricular conduction blockade.
- Third-degree conduction block represents the most severe form and can be fatal.
Purpose of the Study:
- To review and analyze published cases of third-degree conduction block associated with Lyme carditis in the United States.
- To identify characteristics of patients who develop severe Lyme carditis.
Main Methods:
- Systematic review of the medical literature.
- Identification and analysis of 45 published cases of third-degree conduction block linked to Lyme carditis.
Main Results:
- The review identified 45 cases of third-degree conduction block from Lyme carditis in the US.
- The median patient age was 32 years, with 84% of patients being male.
- Temporary pacing was required in 39% of these patients.
Conclusions:
- Third-degree heart block is a serious complication of Lyme carditis.
- Identifying patients prone to severe Lyme carditis is vital for prompt and effective management.
- Early recognition can guide appropriate and timely therapeutic interventions.
Abstract:
Lyme carditis is an uncommon manifestation of Lyme disease that most commonly involves some degree of atrioventricular conduction blockade. Third-degree conduction block is the most severe form and can be fatal if untreated. Systematic review of the medical literature identified 45 published cases of third-degree conduction block associated with Lyme carditis in the United States. Median patient age was 32 years, 84% of patients were male, and 39% required temporary pacing. Recognizing patient groups more likely to develop third-degree heart block associated with Lyme carditis is essential to providing prompt and appropriate therapy.
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