Download Ablation of left posterior fascicular tachycardia during sinus rhythm

Downloaded from http://heart.bmj.com/ on May 8, 2017 - Published by group.bmj.com
Abstracts
[gw22-e0609]
ABLATION OF LEFT POSTERIOR FASCICULAR
TACHYCARDIA DURING SINUS RHYTHM UNDER
THE GUIDE OF NON-CONTACT ARRAY
Xu Jian, Sun Xianlin, Su Hao, Cheng Ming, Zhu Hongjun, An Chunsheng, Liu Fuyuan,
Fan Xizheng, Yan Ji Anhui Provincial Hospital Cardiovascular Center
10.1136/heartjnl-2011-300867.542
Aims To explore the effectiveness and safety of catheter ablation for left posterior fascicular ventricular tachycardia under
the guide of Ensite3000/array.
Methods Patients with left posterior fascicular ventricular
tachycardia from March 2009 to March 2011 in our centre were
studied, including 1 perinatal cardiomyopathy patient and 2
dilated cardiomyopathy patients. Three dimensional geometry
were constructed using Ensite3000/array and His bundle, left
bundle branch, left posterior fascile and sinus rhythm breakout point were marked during sinus rhythm. The P potential
and diastolic potential were mapped using array rapidly in the
area just above sinus rhythm breakout point and after confi rmation by ablation catheter, a patchy ablation method were
used with the appearance of left posterior fascicular block in
ECG and no further ventricular tachycardia induction as a end
point of ablation.
Results The duration of VT QRS complex was 125.6±10.2 ms
with RR interval 356.5±38.6 ms. The P potential and diastolic
potential were all successfully mapped and 24 patients developed left posterior fascicular block in ECG and all patients
having no further ventricular tachycardia induced. During
follow-up, 1 patient had recurrent ventricular tachycardia and
second ablation was performed resulting in deeper q wave in
lead II, III and aVF and no ventricular arrhythmia induction.
Conclusion Under the guide of Ensite3000/array, after marking of left posterior fascicle and mapping of P potential and diastolic potential as target, patchy ablation in the area between
sinus breakout point and His bundle with appearance of left
posterior bundle block and no VT induction as an end point
might cure left posterior fascicular ventricular tachycardia rapidly, effectively and safely.
Heart October 2011 Vol 97 Suppl 3
A185
Downloaded from http://heart.bmj.com/ on May 8, 2017 - Published by group.bmj.com
Ablation of left posterior fascicular
tachycardia during sinus rhythm under the
guide of non-contact array
Xu Jian, Sun Xianlin, Su Hao, Cheng Ming, Zhu Hongjun, An Chunsheng,
Liu Fuyuan, Fan Xizheng and Yan Ji
Heart 2011 97: A185
doi: 10.1136/heartjnl-2011-300867.542
Updated information and services can be found at:
http://heart.bmj.com/content/97/Suppl_3/A185.2
These include:
Email alerting
service
Topic
Collections
Receive free email alerts when new articles cite this article. Sign up in the
box at the top right corner of the online article.
Articles on similar topics can be found in the following collections
Drugs: cardiovascular system (8842)
Clinical diagnostic tests (4779)
Tachyarrhythmias (208)
Hypertension (3006)
Dilated cardiomyopathy (292)
Heart failure (565)
Notes
To request permissions go to:
http://group.bmj.com/group/rights-licensing/permissions
To order reprints go to:
http://journals.bmj.com/cgi/reprintform
To subscribe to BMJ go to:
http://group.bmj.com/subscribe/