Academic Journal
Localization of Optimal Ablation Site of Idiopathic Ventricular Tachycardia from Right and Left Ventricular Outflow Tract by Body Surface ECG
| العنوان: | Localization of Optimal Ablation Site of Idiopathic Ventricular Tachycardia from Right and Left Ventricular Outflow Tract by Body Surface ECG |
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| المؤلفون: | Kamakura, Shiro, Shimizu, Wataru, Matsuo, Kiyotaka, Taguchi, Atsushi, Suyama, Kazuhiro, Kurita, Takashi, Aihara, Naohiko, Ohe, Tohru, Shimomura, Katsuro |
| المصدر: | Circulation ; volume 98, issue 15, page 1525-1533 ; ISSN 0009-7322 1524-4539 |
| بيانات النشر: | Ovid Technologies (Wolters Kluwer Health) |
| سنة النشر: | 1998 |
| الوصف: | Background —Idiopathic ventricular tachycardia (VT) is known to arise from the right ventricular (RV) and left ventricular outflow tracts (LVOT). However, reliable noninvasive methods to localize the optimum ablation site for VT have not been reported. Methods and Results —Body surface maps (BSM) and 12-lead ECGs were investigated in 35 VTs from the RVOT and 5 VTs from the LVOT in which the origin was confirmed during the ablation procedure. The RVOT was classified into 8 subdivisions with the use of a 3-dimensional anatomic relation: anterior (A)–posterior (P), right (R)–left (L), and superior (S)–inferior (I). On the BSM, the following 3 indexes differentiated each location of the origin, with a diagnostic accuracy of 88% (A-P), 92% (R-L), and 77% (S-I): (1) the location of the minimum at the early-to-mid QRS (right, A; left, P), (2) the isopotential distribution in the left shoulder area after 30 ms of QRS (positive, R; negative, L), and (3) the downward moving time of the minimum at the early-to-mid QRS (≥50 ms, S; <50 ms, I). On the 12-lead ECG, (1) the QRS duration (>140 ms, A; ≤140 ms, P) and the R-wave pattern in leads II and III (RR’ or Rr’, A, R, P), (2) the QS wave amplitude in aVR and aVL (aVR≥aVL, R; aVR |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1161/01.cir.98.15.1525 |
| DOI: | 10.1161/01.CIR.98.15.1525 |
| الاتاحة: | http://dx.doi.org/10.1161/01.cir.98.15.1525 https://www.ahajournals.org/doi/full/10.1161/01.CIR.98.15.1525 |
| رقم الانضمام: | edsbas.9C4F1521 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1161/01.cir.98.15.1525 |
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