| Reversible Atrioventricular Block after Electrical Injury |
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Ji Young Lee, Hyo In Rhyou, Won Joung Choi, Hyo Jin Jung, Seul Lee, Jong Sung Park |
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Department of Internal Medicine, Dong-A University College of Medicine, Busan, Korea |
| 감전 후 발생한 가역적인 방실전도차단 |
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이지영, 류호인, 최원종, 정효진, 이슬, 박종성 |
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동아대학교 의과대학 내과학교실 |
Correspondence:
Jong Sung Park, Tel: +82-51-240-5040, Fax: +82-51-242-5852, Email: thinkmed@dau.ac.kr
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Received: 8 July 2014 • Revised: 24 October 2014 • Accepted: 11 December 2014 |
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| This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
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| Abstract |
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Here, we report a case of electrical injury-induced reversible advanced second-degree atrioventricular (AV) block. A 28-year-old male visited the emergency department for palpitations 3 days after receiving an electrical injury from 220 volt alternating current. The initial electrocardiogram (ECG) showed sinus rhythm and first-degree AV block with a prolonged PR interval of 400 ms. There was no structural heart disease or electrolyte imbalance. Follow up ECGs acquired 4-6 days after the electrical injury showed intermittent AV block with a prolonged PR interval of 400-460 ms. Exercise treadmill and atropine provocation tests performed 6 days after electrical injury induced advanced second-degree AV block. His bundle electrogram showed intermittent AH block in a Wenckebach pattern with a prolonged AH interval of 220-360 ms and a normal HV interval. Episodes of AV block decreased remarkably 4 weeks after the electrical injury, and the prolonged PR interval returned to 220 ms after 5 months. |
| Key Words:
Electricity; Atrioventricular block |
| 주제어:
방실차단; 감전 |
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