Lyme carditis can present with transitory high-degree AV block and LV dysfunction that may completely resolve without myocardial scarring as demonstrated by CMR.
May support expectant management in Lyme carditis with transient AV block; hypothesis-generating for scar-free LV recovery on CMR.
Lyme disease is a tickborne illness that could cause, weeks to months later, complications involving the joints, central nervous system, and cardiovascular system. We report a case of cardiac manifestation with transitory higher degree atrioventricular block and dysfunction of the left ventricle. Complete resolution without signs of myocardial scar is demonstrated by cardiac magnetic resonance imaging.
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Karadağ et al. (2004) studied this question.
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