医学
房室传导阻滞
心脏病学
病态窦房结综合征
回廊的
内科学
心脏传导阻滞
耐火材料(行星科学)
麻醉
心电图
物理
天体生物学
作者
Pasquale Crea,Paolo Bellocchi,Federica Cocuzza,Antonino Micari,Lilia Oreto
摘要
A 16-year-old female with dual-chamber pacemaker (Medtronic Azure XT DR), due to symptomatic third-degree congenital atrioventricular (AV) block, presented to our ambulatory with dizziness and presyncopal episodes preceded by prodromes, occurring over the last few months. The device was programmed in DDD mode with an upper rate of 150 bpm. A head-up Tilt Test (HUTT) revealed the unexpected emergence of 2:1 electronic AV block at a sinus rate of 130 bpm.
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