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Decremental properties of a concealed nodoventricular pathway.
Onuki, Koumei; Nagashima, Koichi; Matsunaga-Lee, Yasuharu; Fukunaga, Masato; Hiroshima, Kenichi; Ando, Kenji; Scheinman, Melvin M.
Afiliação
  • Onuki K; Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan.
  • Nagashima K; Department of Medicine, Division of Cardiology, Nihon University School of Medicine, Tokyo, Japan.
  • Matsunaga-Lee Y; Division of Cardiology, Osaka Rosai Hospital, Sakai, Japan.
  • Fukunaga M; Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan.
  • Hiroshima K; Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan.
  • Ando K; Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan.
  • Scheinman MM; Division of Cardiology, Section of Cardiac Electrophysiology, University of California San Francisco, San Francisco, California, USA.
Article em En | MEDLINE | ID: mdl-39256920
ABSTRACT

INTRODUCTION:

The decremental properties of the nodoventricular pathway (NVP) are uncertain. METHODS AND

RESULTS:

During short RP supraventricular tachycardia, a His-refractory premature ventricular contraction (PVC) consistently terminated the tachycardia without atrial capture immediately after the PVC. Whereas a slightly earlier PVC failed to reset the subsequent His but terminated the tachycardia without atrial capture one cycle later.

CONCLUSION:

These observations are diagnostic of slow-fast atrioventricular nodal reentrant tachycardia (AVNRT) with a bystander concealed-NVP and can be explained by decremental properties in the NVP itself; greater prematurity of the PVC resulted in more decremental conduction over the NVP, causing the AVNRT termination one cycle later.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article