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- Masanari Asai, Masayoshi Kiyokuni, Kazuho Ishii, Yuuna Kine, Yu Yamada, Hiroyuki Ishikawa, Shintaro Koga, Shunsuke Kataoka, Katsutaka Hashiba, Tatsuya Nakachi, and Tsutomu Endo.
- Department of Cardiology, Saiseikai Yokohamashi Nanbu Hospital, Japan.
- Intern. Med. 2024 Jan 1; 63 (1): 939693-96.
AbstractA 62-year-old male was transferred to our hospital complaining of palpitations. His heart rate was 185/min. Electrocardiogram showed a narrow QRS regular tachycardia and the tachycardia changed spontaneously to another narrow QRS tachycardia with two alternating cycle lengths. The arrhythmia was stopped by the administration of adenosine triphosphate. Findings from electrophysiological study suggested that there was an accessory pathway (AP) and dual atrioventricular (AV) nodal pathways. After AP ablation, any other tachyarrythmias were not induced. We supposed that the tachycardia was paroxysmal supraventricular tachycardia involving AP and anterograde conduction alternating between slow and fast AV nodal pathways.
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