心内膜側ならびに術中心外膜側マッピング下アブレーションにより根治し得た経皮的中隔心筋焼灼術後心室頻拍の1例
症例は76歳, 女性. 閉塞性肥大型心筋症に対する経皮的中隔心筋焼灼術 (PTSMA) 施行5年後にVTが出現. MRIでは左室基部~中部中隔に辺縁不整の瘢痕を認めた. EPSでは心室刺激による誘発と停止が可能な2種類のVTを認めた. VT#1 (RBBB+RAD) は左室中隔基部のPTSMAによると思われる低電位領域の前縁に関連する限局した範囲内のマクロリエントリーであり, 収縮期電位の最早期部位での通電で誘発不能となった. VT#2 (RBBB+LAD) は瘢痕後縁の僧帽弁輪後中隔が最早期のfocal VTパターンを示し, 心内膜, CS内通電が無効. 僧帽弁形成術中開胸下に心外膜マッピン...
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Published in | Shinzo Vol. 41; no. SUPPL.4; pp. S4_173 - S4_179 |
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Main Authors | , , , , , , , , , , , , , , , |
Format | Journal Article |
Language | Japanese |
Published |
公益財団法人 日本心臓財団
2009
Japan Heart Foundation |
Subjects | |
Online Access | Get full text |
ISSN | 0586-4488 2186-3016 |
DOI | 10.11281/shinzo.41.S4_173 |
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Abstract | 症例は76歳, 女性. 閉塞性肥大型心筋症に対する経皮的中隔心筋焼灼術 (PTSMA) 施行5年後にVTが出現. MRIでは左室基部~中部中隔に辺縁不整の瘢痕を認めた. EPSでは心室刺激による誘発と停止が可能な2種類のVTを認めた. VT#1 (RBBB+RAD) は左室中隔基部のPTSMAによると思われる低電位領域の前縁に関連する限局した範囲内のマクロリエントリーであり, 収縮期電位の最早期部位での通電で誘発不能となった. VT#2 (RBBB+LAD) は瘢痕後縁の僧帽弁輪後中隔が最早期のfocal VTパターンを示し, 心内膜, CS内通電が無効. 僧帽弁形成術中開胸下に心外膜マッピングを施行したところ, 心内膜側と同様に後壁僧帽弁輪が最早期のfocal VTパターンを示し, 最早期部位の凍結アブレーション中に停止した. 術中にVT#1は誘発されず. 以後, 両VTは誘発不能となった. PTSMA瘢痕に関連するVTをマッピングし根治し得た症例を経験したので報告する. |
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AbstractList | 症例は76歳, 女性. 閉塞性肥大型心筋症に対する経皮的中隔心筋焼灼術 (PTSMA) 施行5年後にVTが出現. MRIでは左室基部~中部中隔に辺縁不整の瘢痕を認めた. EPSでは心室刺激による誘発と停止が可能な2種類のVTを認めた. VT#1 (RBBB+RAD) は左室中隔基部のPTSMAによると思われる低電位領域の前縁に関連する限局した範囲内のマクロリエントリーであり, 収縮期電位の最早期部位での通電で誘発不能となった. VT#2 (RBBB+LAD) は瘢痕後縁の僧帽弁輪後中隔が最早期のfocal VTパターンを示し, 心内膜, CS内通電が無効. 僧帽弁形成術中開胸下に心外膜マッピングを施行したところ, 心内膜側と同様に後壁僧帽弁輪が最早期のfocal VTパターンを示し, 最早期部位の凍結アブレーション中に停止した. 術中にVT#1は誘発されず. 以後, 両VTは誘発不能となった. PTSMA瘢痕に関連するVTをマッピングし根治し得た症例を経験したので報告する. |
Author | 大森, 裕也 上野, 亮 松本, 綾乃 天野, 康雄 新田, 隆 小原, 俊彦 村田, 広茂 小林, 義典 岡崎, 怜子 宮内, 靖史 林, 洋史 水野, 杏一 高山, 守正 加藤, 貴雄 岩崎, 雄樹 山本, 哲平 |
Author_FL | Matsumoto Ayano Ueno Akira Hayashi Hiroshi Iwasaki Yu-ki Mizuno Kyoichi Katoh Takao Murata Hiroshige Takayama Morimasa Ohara Toshihiko Nitta Takashi Amano Yasuo Yamamoto Teppei Kobayashi Yoshinori Okazaki Reiko Ohmori Hiroya Miyauchi Yasushi |
Author_FL_xml | – sequence: 1 fullname: Murata Hiroshige – sequence: 2 fullname: Miyauchi Yasushi – sequence: 3 fullname: Kobayashi Yoshinori – sequence: 4 fullname: Iwasaki Yu-ki – sequence: 5 fullname: Ueno Akira – sequence: 6 fullname: Okazaki Reiko – sequence: 7 fullname: Yamamoto Teppei – sequence: 8 fullname: Matsumoto Ayano – sequence: 9 fullname: Hayashi Hiroshi – sequence: 10 fullname: Ohara Toshihiko – sequence: 11 fullname: Katoh Takao – sequence: 12 fullname: Mizuno Kyoichi – sequence: 13 fullname: Nitta Takashi – sequence: 14 fullname: Ohmori Hiroya – sequence: 15 fullname: Amano Yasuo – sequence: 16 fullname: Takayama Morimasa |
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DocumentTitleAlternate | Electroanatomical mapping-guided endocardial and epicardial ablation of sustained ventricular tachycardia following percutaneus transluminal septal myocardial ablation in a patient with hypertrophic obstructive cardiomyopathy |
DocumentTitle_FL | Electroanatomical mapping-guided endocardial and epicardial ablation of sustained ventricular tachycardia following percutaneus transluminal septal myocardial ablation in a patient with hypertrophic obstructive cardiomyopathy |
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References | 7) Cuoco FA, Spencer WH, Fernandes VL, et al: Implantable Cardioverter-Defibrillator Therapy for Primary Prevention of Sudden Death After Alcohol Septal Ablation of Hypertrophic Cardiomyopathy. J Am Coll Cardiol 2008; 52: 1718-1723 6) Lawrenz T, Obergassel L, Lieder F, et al: Transcoronary Ablation of Septal Hypertrophy Does Not Alter ICD Intervention Rates in High Risk Patients with Hypertrophic Obstructive Cardiomyopathy. PACE 2005; 28: 295-300 2) Mcgregor JB, Rahman A, Rosanio S, et al: Monomorphic Ventricular Tachycardia: A Late Complication of Percutaneous Alcohol Septal Ablation for Hypertrophic Cardiomyopathy. Am J Med Sci 2004; 328: 185-188 1) Sigwart U: Non-surgical myocardial reduction for hypertrophic obstructive cardiomyopathy. Lancet 1995; 346: 211-214 9) Maron BJ, Olivotto I, Spirito P, et al: Epidemiology of hypertrophic cardiomyopathy-related death: revisited in a large non-referral-based patient population. Circulation 2000; 102: 858-864 3) Simon, RBD, Grawford FA, Spencer WH, et al: Sustained Tachycardia Following Alcohol Septal Ablation for Hypertrophic Obstructive Cardiomyopathy. PACE 2005; 28: 1354-1356 4) Boltwood CM, Chien W, Ports T: Ventricular Tachycardia Complicating Alcohol Septal Ablation. N Engl J Med 2004; 351: 1914-1915 8) Murata H, Kobayashi Y, Miyauchi Y, et al: Clinical Characteristics of Spontaneous Occurring Ventricular Tachyarrhythmia following PTSMA in Patients with HOCM. Circ J 2009; 73: 511 (Abstract 5) Hori Y, Ueda M, Nakayama T, et al: Occurrence of de novo sustained monomorphic ventricular tachycardia induced after percutaneous transluminal alcohol septal myocardial ablation for hypertrophic obstructive caridomyophaty. Int J Cardiol 2007; 119: 403-407 |
References_xml | – reference: 5) Hori Y, Ueda M, Nakayama T, et al: Occurrence of de novo sustained monomorphic ventricular tachycardia induced after percutaneous transluminal alcohol septal myocardial ablation for hypertrophic obstructive caridomyophaty. Int J Cardiol 2007; 119: 403-407 – reference: 3) Simon, RBD, Grawford FA, Spencer WH, et al: Sustained Tachycardia Following Alcohol Septal Ablation for Hypertrophic Obstructive Cardiomyopathy. PACE 2005; 28: 1354-1356 – reference: 6) Lawrenz T, Obergassel L, Lieder F, et al: Transcoronary Ablation of Septal Hypertrophy Does Not Alter ICD Intervention Rates in High Risk Patients with Hypertrophic Obstructive Cardiomyopathy. PACE 2005; 28: 295-300 – reference: 2) Mcgregor JB, Rahman A, Rosanio S, et al: Monomorphic Ventricular Tachycardia: A Late Complication of Percutaneous Alcohol Septal Ablation for Hypertrophic Cardiomyopathy. Am J Med Sci 2004; 328: 185-188 – reference: 7) Cuoco FA, Spencer WH, Fernandes VL, et al: Implantable Cardioverter-Defibrillator Therapy for Primary Prevention of Sudden Death After Alcohol Septal Ablation of Hypertrophic Cardiomyopathy. J Am Coll Cardiol 2008; 52: 1718-1723 – reference: 8) Murata H, Kobayashi Y, Miyauchi Y, et al: Clinical Characteristics of Spontaneous Occurring Ventricular Tachyarrhythmia following PTSMA in Patients with HOCM. Circ J 2009; 73: 511 (Abstract) – reference: 9) Maron BJ, Olivotto I, Spirito P, et al: Epidemiology of hypertrophic cardiomyopathy-related death: revisited in a large non-referral-based patient population. Circulation 2000; 102: 858-864 – reference: 4) Boltwood CM, Chien W, Ports T: Ventricular Tachycardia Complicating Alcohol Septal Ablation. N Engl J Med 2004; 351: 1914-1915 – reference: 1) Sigwart U: Non-surgical myocardial reduction for hypertrophic obstructive cardiomyopathy. Lancet 1995; 346: 211-214 |
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Snippet | 症例は76歳, 女性. 閉塞性肥大型心筋症に対する経皮的中隔心筋焼灼術 (PTSMA) 施行5年後にVTが出現. MRIでは左室基部~中部中隔に辺縁不整の瘢痕を認めた. EPSでは心室刺激による誘発と停止が可能な2種類のVTを認めた. VT#1 (RBBB+RAD)... |
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SubjectTerms | カテーテルアブレーション 心外膜側マッピング 心室頻拍 経皮的中隔心室焼灼術 閉塞性肥大型心筋症 |
Title | 心内膜側ならびに術中心外膜側マッピング下アブレーションにより根治し得た経皮的中隔心筋焼灼術後心室頻拍の1例 |
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