Özet:

Acute rheumatic fever (ARF) is a systemic autoimmune disease that results from abnormal immune response to group A streptococcus pharyngitis. Although first-degree atrioventricular (AV) block is the most common rhythm problem associated with the disease, other conduction abnormalities also could be seen. We reported three different types of conduction defects (first-degree AV block, second-degree AV block, and complete AV block) in a 15-year-old case diagnosed with ARF. A 15-year-old male patient presented with palpitation. Physical examination findings were unremarkable except dysrhythmic heart sounds. Acute phase reactants were positive, and electrocardiogram showed second-degree type I AV block at hospital admission. In the 2nd day of admission, right first metatarsophalangeal arthritis as well as arthralgia involved both knees and ankles developed. Echocardiography revealed moderate rheumatic mitral regurgitation. First-degree AV block with brief complete AV block episode was seen on 24 h rhythm Holter recordings. Based on clinical and laboratory findings, ARF diagnosis was made and anti-inflammatory therapy (naproxen sodium) with benzathine penicillin G was started to the patient. First-degree AV block lasted 3 weeks and other conduction disorders were not seen again first, second, and complete AV block which could be seen during ARF episode and ARF should be considered as a one of the causes of arrhythmias.

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