Lyme Carditis Induced Third Degree Av Block Reversed by Doxycycline

Lyme carditis and accelerated junctional rhythm with intermittent left bundle branch block and paroxysmal atrioventricular block

“…The searches yielded 8 publications describing 10 patients. 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 The primary search of PubMed retrieved 30 initial articles, of which 4 articles were identified for the review. 4 , 9 , 10 , 11 The secondary search retrieved 4 additional articles.…”

“… 4 , 9 , 10 , 11 The secondary search retrieved 4 additional articles. 5 , 6 , 7 , 8 One article, an abstract, described a presenting heart rate of 50 beats/min but designated the arrhythmia as accelerated junctional rhythm. 6 The final patients, with the patient from this article listed as case 8 under accelerated junctional rhythm, are listed in Table 1 .…”

“… 5 , 11 One patient received oral doxycycline and refused hospitalization for IV antibiotics owing to insurance issues. 6 Another patient was prescribed oral doxycycline owing to misinterpretation of the initial ECG and had resolution of complete AV block with a normal ECG by the time IV antibiotics were considered 2 weeks later. 7 …”