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Adenosine Can Also Improve the Conduction Between the Superior Vena Cava and Right Atrium After Isolation
Author(s) -
YAMADA TAKUMI,
MURAKAMI YOSHIMASA,
PLUMB VANCE J.,
KAY G. NEAL
Publication year - 2006
Publication title -
journal of cardiovascular electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.193
H-Index - 138
eISSN - 1540-8167
pISSN - 1045-3873
DOI - 10.1111/j.1540-8167.2006.00570.x
Subject(s) - medicine , right atrium , isolation (microbiology) , superior vena cava , adenosine , cardiology , atrium (architecture) , atrial fibrillation , bioinformatics , biology
A 64‐year‐old man with atrial tachycardia (AT) 3 years after a superior vena cava (SVC) isolation for atrial fibrillation underwent electrophysiologic testing. SVC mapping with a basket catheter revealed a more frequent activation in the SVC than in either of the atria during the AT and consequently the recovered conduction between the SVC and right atrium. The conduction improved from 3 or 4–1 conduction to 2–1 conduction after adenosine was administered. Ectopic firing in the SVC persisted even after restoration of sinus rhythm by the successful SVC isolation, which was confirmed by adenosine.