The differential diagnosis of bradycardia reviewed recently by Mangrum and
DiMarco (March 9 issue) (1) should include Lyme carditis...

http://www.***.com/

source: Lymenet Newsletter
                     Volume 1 - Number 12 - 6/03/93

"....Slow heart rate; (1) complete heart block; (2) sinus bradycardia..."

Pediatric cardiac involvement with Lyme disease
Michael B. Alpert, MD, FAAP, FACC

Lyme carditis: literature reports 3:1  - male : female ; the author
believes it is the reverse.

10% of kids with Lyme have cardiac involvement

Electocardiogram abnormalities described were: first, second, and third
degree heart block, right bundle branch block, premature ventricular
contractions (seeing more an more of this ), abnormal polarization (inverted
T wave)

Symptoms: chest pain, palpitations, irregular heart beat, low heart rates

Chest pain from:  (1) costochondritis which isn't very responsive to
antiinflammatory treatment but does improve with antibiotic treatment; (2)
myocarditis which can be serious and cause death; (3) unexplained

Palpatation:  (1) supraventricular tachycardia which is not well controlled
unless Lyme is treated; (2) unexplained

Irregular heart beat:  (1) premature ventricular contractions; (2)
premature atrial contractions; (3) unexplained

Slow heart rate; (1) complete heart block; (2) sinus bradycardia
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