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Long-term Outcomes in Treated Lyme Carditis.
Chang Nancy Wang1, Cynthia Yeung1, Andres Enriquez1
1Queen's University, Kingston, ON, Canada.
Current Problems in Cardiology
|August 21, 2021
Summary
Long-term outcomes for Lyme carditis (LC) patients treated with antibiotics and stress tests are positive. Most patients recover fully without needing permanent pacemakers, showing stable heart conduction post-treatment.
Area of Science:
- Cardiology
- Infectious Diseases
- Tick-borne Illnesses
Background:
- Lyme carditis (LC) is a common early manifestation of Lyme disease.
- Symptomatic high-degree atrioventricular block (AVB) is the most frequent presentation of LC.
- AVB associated with LC typically resolves with antibiotic treatment.
Purpose of the Study:
- To describe the long-term outcomes of patients diagnosed with Lyme carditis.
- To evaluate the efficacy of a standardized treatment protocol for LC, including antibiotics and pre-discharge stress testing.
Main Methods:
- A retrospective review of 7 patients with serologically confirmed Lyme carditis.
- Patients were treated with a protocol including antibiotics and a pre-discharge stress test to assess atrioventricular node stability.
- Follow-up assessments were conducted to evaluate long-term cardiac conduction and patient activity levels.
Main Results:
- All 7 patients were asymptomatic at a mean follow-up of 20.8 months.
- Patients resumed normal activities and showed no residual conduction abnormalities.
- None of the patients required permanent pacemaker implantation.
Conclusions:
- Lyme carditis, when treated appropriately with antibiotics and monitored for AV node stability, has favorable long-term outcomes.
- Avoidance of permanent pacing is supported in LC patients demonstrating stable conduction at discharge.
- Standardized treatment protocols can lead to full recovery and return to normal activities for LC patients.
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