IDCases 2021[]; 25 (ä): e01179 PMID34194998show ga
Lyme carditis (LC), a manifestation of early disseminated Lyme disease, most commonly presents with cardiac conduction abnormalities. It is a transient condition with good prognosis but in extremely rare cases may be life-threatening. We describe a 42-year-old man who presented with progressively worsening generalized weakness, presyncope and dyspnea on exertion for 2 weeks after sustaining a tick bite. He subsequently developed a 'bull's eye rash' on his flank 2 days before his presentation. He was found to have symptomatic third-degree AV conduction blockade with a ventricular escape rhythm resulting in a brief cardiac arrest. Intravenous (IV) ceftriaxone was commenced empirically and a temporary transvenous pacemaker was placed. In a few days he showed dramatic, rapid improvement; the pacemaker was removed, and the patient was discharged on oral doxycycline to complete a 24-day course. This case is unique due to its occurrence in an urban hospital where such cases are uncommon. Cardiac arrest, although brief in this case, is a rare occurrence. Lyme carditis was a surprise diagnosis in our hospital due to the patient's geographical dislocation during the COVID-19 pandemic.
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IDCases 2021 ; 25 (ä): e01179
