New Endpoint for Ablation of Ventricular Tachycardia: Change in QRS Morphology with Pacing at Protected Isthmus as Index of Isthmus Block

被引:3
作者
Bala, Rupa [1 ]
Dhruvakumar, Sandhya [1 ]
Latif, Shuaib A. [1 ]
Marchlinski, Francis E. [1 ]
机构
[1] Hosp Univ Penn, Philadelphia, PA 19104 USA
关键词
Tetralogy of Fallot; ventricular tachycardia; VT ablation; electroanatomical mapping; RADIOFREQUENCY CATHETER ABLATION; CONGENITAL HEART-DISEASE; TETRALOGY; FALLOT; REPAIR; IDENTIFICATION; CARTO;
D O I
10.1111/j.1540-8167.2009.01596.x
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Methods and Results: A 44-year-old man with a history of Tetralogy of Fallot presented with recurrent ventricular tachycardia (VT). Entrainment mapping was consistent with a macroreentrant circuit rotating in a clockwise fashion under the pulmonic valve. After termination of the VT in a critical isthmus located on the conal free wall, a pace map proximal to the site of successful ablation was consistent with a change in QRS morphology. This change in QRS morphology suggested critical isthmus block and successful ablation, which was confirmed by noninducibility with programmed stimulation. Conclusion: Evidence of conduction block can be used as an additional endpoint for successful ablation of VT. (J Cardiovasc Electrophysiol, Vol. 21, pp. 320-324, March 2010).
引用
收藏
页码:320 / 324
页数:5
相关论文
共 10 条
  • [1] RADIOFREQUENCY CATHETER ABLATION OF RIGHT-VENTRICULAR OUTFLOW TRACT TACHYCARDIA LATE AFTER COMPLETE REPAIR OF TETRALOGY OF FALLOT USING THE PACE MAPPING TECHNIQUE
    BURTON, ME
    LEON, AR
    [J]. PACE-PACING AND CLINICAL ELECTROPHYSIOLOGY, 1993, 16 (12): : 2319 - 2325
  • [2] Clockwise and counter-clockwise circulation of wavefronts around an anatomical obstacle as one mechanism of two morphologies of sustained ventricular tachycardia in patients after a corrective operation of tetralogy of Fallot
    Chinushi, M
    Aizawa, Y
    Kitazawa, H
    Takahashi, K
    Washizuka, T
    Shibata, A
    [J]. PACE-PACING AND CLINICAL ELECTROPHYSIOLOGY, 1997, 20 (09): : 2279 - 2281
  • [3] From the Editor-in-Chief
    Das, Dilip K.
    [J]. POLICE PRACTICE AND RESEARCH, 2005, 6 (01) : 1 - 2
  • [4] VENTRICULAR-TACHYCARDIA WITH 2 POSSIBLE EXITS FROM ONE REENTRANT CIRCUIT
    EBE, K
    AIZAWA, Y
    SATOH, M
    FUNAZAKI, T
    MIYAJIMA, S
    NIWANO, S
    TAMURA, M
    SHIBATA, A
    MIYAMURA, H
    EGUCHI, S
    [J]. JAPANESE CIRCULATION JOURNAL-ENGLISH EDITION, 1990, 54 (02): : 214 - 219
  • [5] Radiofrequency catheter ablation of right ventricular tachycardia late after repair of congenital heart defects
    Gonska, BD
    Cao, KJ
    Raab, J
    Eigster, G
    Kreuzer, H
    [J]. CIRCULATION, 1996, 94 (08) : 1902 - 1908
  • [6] Ablation of ventricular tachycardia associated with tetralogy of Fallot: Demonstration of bidirectional block
    Horton, RP
    Canby, RC
    Kessler, DJ
    Joglar, JA
    Hume, A
    Jessen, ME
    Scott, WP
    Page, RL
    [J]. JOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY, 1997, 8 (04) : 432 - 435
  • [7] Radiofrequency catheter ablation of ventricular tachycardia in children and young adults with congenital heart disease
    Morwood, JG
    Triedman, JK
    Berul, CI
    Khairy, P
    Alexander, ME
    Cecchin, F
    Walsh, EP
    [J]. HEART RHYTHM, 2004, 1 (03) : 301 - 308
  • [8] Radiofrequency catheter ablation of a macroreentrant ventricular tachycardia late after surgical repair of tetralogy of Fallot using the electroanatomic mapping (CARTO)
    Rostock, T
    Willems, S
    Ventura, R
    Weiss, C
    Risius, T
    Meinertz, T
    [J]. PACE-PACING AND CLINICAL ELECTROPHYSIOLOGY, 2004, 27 (06): : 801 - 804
  • [9] Identification and ablation of macroreentrant ventricular tachycardia with the CARTO electroanatomical mapping system
    Stevenson, WG
    Delacretaz, E
    Friedman, PL
    Ellison, KE
    [J]. PACE-PACING AND CLINICAL ELECTROPHYSIOLOGY, 1998, 21 (07): : 1448 - 1456
  • [10] Catheter ablation of ventricular tachycardia after repair of congenital heart disease - Electroanatomic identification of the critical right ventricular isthmus
    Zeppenfeld, Katja
    Schalij, Martin J.
    Bartelings, Margot M.
    Tedrow, Usha B.
    Koplan, Bruce A.
    Soejima, Kyoko
    Stevenson, William G.
    [J]. CIRCULATION, 2007, 116 (20) : 2241 - 2252