キンジヨウ　タカヒコ   Kinjiyou Takahiko   金城　貴彦    所属   医学部 医学科（東京女子医科大学病院）    職種   助教
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Long Postpacing Interval After Entrainment of Tachycardia Including a Slow Conduction Zone Within the Circuit
掲載誌名	正式名：J Cardiovasc Electrophysiol ISSNコード：15408167 (Electronic)10453873 (Linking)
掲載区分	国外
巻・号・頁	27(8),pp.923-9
著者・共著者	Kinjo, T.† Sasaki, S. Kimura, M. Owada, S. Horiuchi, D. Sasaki, K. Itoh, T. Ishida, Y. Shoji, Y. Nishizaki, K. Tsushima, Y. Tomita, H. Okumura, K.*
担当区分	筆頭著者
発行年月	2016/08
概要	BACKGROUNDS: Postpacing interval (PPI) measured after entrainment pacing describes the distance between pacing site and reentrant circuit. However, the influential features to PPI remain to be elucidated. METHODS AND RESULTS: This study included 22 cases with slow/fast atrioventricular (AV) nodal reentrant tachycardia (AVNRT), 14 orthodromic AV reciprocating tachycardia (AVRT) using an accessary pathway, 22 typical atrial flutter (AFL), and 18 other macroreentrant atrial tachycardia (atypical AFL). Rapid pacing at a pacing cycle length (PCL) 5% shorter than tachycardia cycle length (TCL) was done from a site on or close to the reentry circuit. Pacing sites included the coronary sinus ostium in AVNRT, earliest atrial activation site in AVRT, and cavotricuspid isthmus in typical AFL. In atypical AFL, tachycardia circuit was determined on the basis of CARTO mapping, and then the pacing site was. TCL was significantly longer in AVNRT and AVRT than in typical AFL and atypical AFL (both P<0.05). PCL minus TCL value was similar among the 4 groups. PPI minus TCL value (milliseconds) was significantly longer in AVNRT (median, 40 [IQR, 29-60.8]) and AVRT (34 [20-47]) than in typical AFL (0 [0-4]) and atypical AFL (3.5 [0-8]) (both P<0.05). Furthermore, PPI minus TCL was prolonged with shortening of PCL in AVNRT and AVRT (both P<0.05), whereas it was unchanged in typical AFL (P = 0.50). CONCLUSION: PPI after concealed entrainment is prolonged compared with TCL when the reentry circuit involves a slow conduction zone with a decremental conduction property such as the AV node.
DOI	10.1111/jce.13014
文献番号	27196507