P-173 Unexpected High Prevalence of Left Nodal Extension Breakthrough in Patients with Slow fast Atrioventricular Nodal Reentry Tachycardia

Chih-Chieh Yu, Bui The Dung, Liang-Yu Lin, Fu-Chun Chiu, Chia-Ti Tsai, Ling-Ping Lai, Jiunn-Lee Lin

研究成果: 雜誌貢獻文章

摘要

Background: Dual pathways inside atrioventricular node (AVN) have been postulated as the critical component of the circuit of AVN re-entry tachycardia (AVNRT). However, detailed electroanatomical mapping is lacking so far.
Methods: To investigate the 3-dimensional circuit incorporating both right and left AVN extensions, we studied 17 pts of slow-fast AVNRT by a duodecapolar electrode positioned along the tendon of Todaro, a decapolar electrode placed
along the high septum of left ventricle, and a decapolar one in the coronary sinus. The fast pathway of AVN was recorded as the earliest retrograde atrial activation site (RAA) during right ventricular pacing (RVP) and slow-fast
AVNRT. Ventricular extrastimuli were recruited during AVNRT to demonstrate the atrial activation sequence. Results: The RAAs in AVNRT were at right septum in 6 pts (35.3%), left in 4 (23.5%), simultaneous in 7 (41.2%). In the 13 patients whose RAAs involved right septum, the RAA was mainly at anteroseptal area in 10 pts (77%), less at middle and posterior septum (2 pts, 15%), and one patient
showed broad breakthrough. During RVP at comparable cycle length, RAA was at right septum in 7 pts (41.2%), left in 3 (17.6%), simultaneous in 7 (41.2%). The RAAs were concordant between AVNRT and RVP in most of the pts
(15 pts, 88.2%). Conclusion: This electroanatomical mapping study showed
unexpected high prevalence of left nodal extensionn breakthrough and the pattern of retrograde fast pathway atrial breakthrough could be variable in each patient.
原文繁體中文
頁(從 - 到)S101
期刊Global Heart
4
DOIs
出版狀態已發佈 - 五月 1 2009
對外發佈Yes

引用此文

P-173 Unexpected High Prevalence of Left Nodal Extension Breakthrough in Patients with Slow fast Atrioventricular Nodal Reentry Tachycardia. / Yu, Chih-Chieh; Dung, Bui The; Lin, Liang-Yu; Chiu, Fu-Chun; Tsai, Chia-Ti; Lai, Ling-Ping; Lin, Jiunn-Lee.

於: Global Heart, 卷 4, 01.05.2009, p. S101.

研究成果: 雜誌貢獻文章

Yu, Chih-Chieh ; Dung, Bui The ; Lin, Liang-Yu ; Chiu, Fu-Chun ; Tsai, Chia-Ti ; Lai, Ling-Ping ; Lin, Jiunn-Lee. / P-173 Unexpected High Prevalence of Left Nodal Extension Breakthrough in Patients with Slow fast Atrioventricular Nodal Reentry Tachycardia. 於: Global Heart. 2009 ; 卷 4. 頁 S101.
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title = "P-173 Unexpected High Prevalence of Left Nodal Extension Breakthrough in Patients with Slow fast Atrioventricular Nodal Reentry Tachycardia",
abstract = "Background: Dual pathways inside atrioventricular node (AVN) have been postulated as the critical component of the circuit of AVN re-entry tachycardia (AVNRT). However, detailed electroanatomical mapping is lacking so far.Methods: To investigate the 3-dimensional circuit incorporating both right and left AVN extensions, we studied 17 pts of slow-fast AVNRT by a duodecapolar electrode positioned along the tendon of Todaro, a decapolar electrode placedalong the high septum of left ventricle, and a decapolar one in the coronary sinus. The fast pathway of AVN was recorded as the earliest retrograde atrial activation site (RAA) during right ventricular pacing (RVP) and slow-fastAVNRT. Ventricular extrastimuli were recruited during AVNRT to demonstrate the atrial activation sequence. Results: The RAAs in AVNRT were at right septum in 6 pts (35.3{\%}), left in 4 (23.5{\%}), simultaneous in 7 (41.2{\%}). In the 13 patients whose RAAs involved right septum, the RAA was mainly at anteroseptal area in 10 pts (77{\%}), less at middle and posterior septum (2 pts, 15{\%}), and one patientshowed broad breakthrough. During RVP at comparable cycle length, RAA was at right septum in 7 pts (41.2{\%}), left in 3 (17.6{\%}), simultaneous in 7 (41.2{\%}). The RAAs were concordant between AVNRT and RVP in most of the pts(15 pts, 88.2{\%}). Conclusion: This electroanatomical mapping study showedunexpected high prevalence of left nodal extensionn breakthrough and the pattern of retrograde fast pathway atrial breakthrough could be variable in each patient.",
author = "Chih-Chieh Yu and Dung, {Bui The} and Liang-Yu Lin and Fu-Chun Chiu and Chia-Ti Tsai and Ling-Ping Lai and Jiunn-Lee Lin",
note = "doi: 10.1016/S1875-4570(09)60365-X",
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T1 - P-173 Unexpected High Prevalence of Left Nodal Extension Breakthrough in Patients with Slow fast Atrioventricular Nodal Reentry Tachycardia

AU - Yu, Chih-Chieh

AU - Dung, Bui The

AU - Lin, Liang-Yu

AU - Chiu, Fu-Chun

AU - Tsai, Chia-Ti

AU - Lai, Ling-Ping

AU - Lin, Jiunn-Lee

N1 - doi: 10.1016/S1875-4570(09)60365-X

PY - 2009/5/1

Y1 - 2009/5/1

N2 - Background: Dual pathways inside atrioventricular node (AVN) have been postulated as the critical component of the circuit of AVN re-entry tachycardia (AVNRT). However, detailed electroanatomical mapping is lacking so far.Methods: To investigate the 3-dimensional circuit incorporating both right and left AVN extensions, we studied 17 pts of slow-fast AVNRT by a duodecapolar electrode positioned along the tendon of Todaro, a decapolar electrode placedalong the high septum of left ventricle, and a decapolar one in the coronary sinus. The fast pathway of AVN was recorded as the earliest retrograde atrial activation site (RAA) during right ventricular pacing (RVP) and slow-fastAVNRT. Ventricular extrastimuli were recruited during AVNRT to demonstrate the atrial activation sequence. Results: The RAAs in AVNRT were at right septum in 6 pts (35.3%), left in 4 (23.5%), simultaneous in 7 (41.2%). In the 13 patients whose RAAs involved right septum, the RAA was mainly at anteroseptal area in 10 pts (77%), less at middle and posterior septum (2 pts, 15%), and one patientshowed broad breakthrough. During RVP at comparable cycle length, RAA was at right septum in 7 pts (41.2%), left in 3 (17.6%), simultaneous in 7 (41.2%). The RAAs were concordant between AVNRT and RVP in most of the pts(15 pts, 88.2%). Conclusion: This electroanatomical mapping study showedunexpected high prevalence of left nodal extensionn breakthrough and the pattern of retrograde fast pathway atrial breakthrough could be variable in each patient.

AB - Background: Dual pathways inside atrioventricular node (AVN) have been postulated as the critical component of the circuit of AVN re-entry tachycardia (AVNRT). However, detailed electroanatomical mapping is lacking so far.Methods: To investigate the 3-dimensional circuit incorporating both right and left AVN extensions, we studied 17 pts of slow-fast AVNRT by a duodecapolar electrode positioned along the tendon of Todaro, a decapolar electrode placedalong the high septum of left ventricle, and a decapolar one in the coronary sinus. The fast pathway of AVN was recorded as the earliest retrograde atrial activation site (RAA) during right ventricular pacing (RVP) and slow-fastAVNRT. Ventricular extrastimuli were recruited during AVNRT to demonstrate the atrial activation sequence. Results: The RAAs in AVNRT were at right septum in 6 pts (35.3%), left in 4 (23.5%), simultaneous in 7 (41.2%). In the 13 patients whose RAAs involved right septum, the RAA was mainly at anteroseptal area in 10 pts (77%), less at middle and posterior septum (2 pts, 15%), and one patientshowed broad breakthrough. During RVP at comparable cycle length, RAA was at right septum in 7 pts (41.2%), left in 3 (17.6%), simultaneous in 7 (41.2%). The RAAs were concordant between AVNRT and RVP in most of the pts(15 pts, 88.2%). Conclusion: This electroanatomical mapping study showedunexpected high prevalence of left nodal extensionn breakthrough and the pattern of retrograde fast pathway atrial breakthrough could be variable in each patient.

U2 - 10.1016/S1875-4570(09)60365-X

DO - 10.1016/S1875-4570(09)60365-X

M3 - 文章

VL - 4

SP - S101

JO - Global Heart

JF - Global Heart

SN - 2211-8160

ER -