The Catheter Ablation of Monomorphic Ventricular Tachycardia Related to Hypertrophic Cardiomyopathy—Its Anatomical and Electrophysiological Characteristics—
-
- Okamatsu Hideharu
- National Cerebral and Cardiovascular Center
-
- Matsuyama Takaaki
- National Cerebral and Cardiovascular Center
-
- Satomi Kazuhiro
- National Cerebral and Cardiovascular Center
-
- Yamada Yuko
- National Cerebral and Cardiovascular Center
-
- Miyamoto Kouji
- National Cerebral and Cardiovascular Center
-
- Okamura Hideo
- National Cerebral and Cardiovascular Center
-
- Noda Takashi
- National Cerebral and Cardiovascular Center
-
- Aiba Takeshi
- National Cerebral and Cardiovascular Center
-
- Shimizu Wataru
- National Cerebral and Cardiovascular Center
-
- Aihara Naohiko
- National Cerebral and Cardiovascular Center
-
- Kamakura Shirou
- National Cerebral and Cardiovascular Center
この論文をさがす
抄録
Background:<BR>The monomorphic ventricular tachycardia (MMVT) is rare in patients with hypertrophic cardiomyopathy (HCM). This study analyzed the anatomical and electrophysiological characteristics in patients with HCM complicated with MMVT.<BR>Methods and Results:<BR>The patient population consisted of 11 patients (3 female and aged 60±12 years) with HCM-related MMVT, including 2 apical aneurysm and 2 apical HCM and no left ventricular outflow tract (LVOT) obstruction. The 12-ECG during VT (mean CL 378±78 msec) demonstrated LBBB in 2 and RBBB in 9. Catheter ablation was performed in 6 patients with VT map based ablation and 4 with substrate based ablation. In 5 of 10, VTs have been non-inducible after procedure. During 60±45 months follow-up, 5 of 10 had recurrence of MMVT. The autopsy and histopathlogical analysis was undergone in a patient who died from pneumonia before the catheter ablation. The pathological finding demonstrated the endocardial fibrosis at the site close to His bundle branch of LVOT, where the MMVT origin was estimated from 12-ECG morphology.<BR>Conclusion: In patients with HCM-related MMVT, endocardial catheter ablation resulted in low success rate and a high recurrence of VT, seemed to have a limited role to prevent lethal arrhythmia. The myocardial fibrosis within hypertrophic myocardial wall may be the substrate of MMVT in HCM.
収録刊行物
-
- Journal of Arrhythmia
-
Journal of Arrhythmia 27 (Supplement), PJ1_091-, 2011
日本不整脈学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390282680223591296
-
- NII論文ID
- 130002130601
-
- ISSN
- 18832148
- 18804276
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可