The main trunk of the left bundle branch is not part of the re-entry circuit of verapamil-sensitive idiopathic left ventricular tachycardia
We report the case of a 19-year-old man with verapamil-sensitive idiopathic left ventricular tachycardia (ILVT), who had paroxysmal palpitations for 3 years. Programmed right atrial and ventricular stimulation easily induced ventricular tachycardia (VT) with QRS duration of 125 ms, right bundle bran...
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| Format: | Article |
| Language: | English |
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Wiley
2012-08-01
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| Series: | Journal of Arrhythmia |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1880427612000427 |
| _version_ | 1831527015130333184 |
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| author | Eiichiro Nakagawa, MD, PhD Masahiko Takagi, MD, PhD Yukio Abe, MD Rhyshi Komatsu, MD, PhD Kazuo Haze, MD, PhD Takahiko Naruko, MD, PhD Akira Itoh, MD, PhD |
| author_facet | Eiichiro Nakagawa, MD, PhD Masahiko Takagi, MD, PhD Yukio Abe, MD Rhyshi Komatsu, MD, PhD Kazuo Haze, MD, PhD Takahiko Naruko, MD, PhD Akira Itoh, MD, PhD |
| author_sort | Eiichiro Nakagawa, MD, PhD |
| collection | DOAJ |
| description | We report the case of a 19-year-old man with verapamil-sensitive idiopathic left ventricular tachycardia (ILVT), who had paroxysmal palpitations for 3 years. Programmed right atrial and ventricular stimulation easily induced ventricular tachycardia (VT) with QRS duration of 125 ms, right bundle branch block pattern, and right inferior axis, which are characteristics of ILVT. Left ventricular endocardial mapping accidentally produced a complete left bundle branch block and provoked prolongation of the QRS duration of VT, which was 143 ms. However, no changes occurred in the cycle length, inducibility, or maintenance of VT. The VT was eliminated successfully by catheter ablation at the pre-Purkinje potential (PP) recording site. These findings suggest that the main trunk of the left bundle branch is not a critical component of the re-entry circuit of ILVT. |
| first_indexed | 2024-12-16T16:22:29Z |
| format | Article |
| id | doaj.art-474f853e793c40a2b54c09b21ecfac1e |
| institution | Directory Open Access Journal |
| issn | 1880-4276 |
| language | English |
| last_indexed | 2024-12-16T16:22:29Z |
| publishDate | 2012-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Arrhythmia |
| spelling | doaj.art-474f853e793c40a2b54c09b21ecfac1e2022-12-21T22:24:53ZengWileyJournal of Arrhythmia1880-42762012-08-0128423223410.1016/j.joa.2011.12.001The main trunk of the left bundle branch is not part of the re-entry circuit of verapamil-sensitive idiopathic left ventricular tachycardiaEiichiro Nakagawa, MD, PhD0Masahiko Takagi, MD, PhD1Yukio Abe, MD2Rhyshi Komatsu, MD, PhD3Kazuo Haze, MD, PhD4Takahiko Naruko, MD, PhD5Akira Itoh, MD, PhD6Department of Cardiology, Osaka City General Hospital, 2-13-22 Miyakojima-hondori, Miyakojima-ku, Osaka 534-0021, JapanDepartment of Internal Medicine and Cardiology, Osaka City University Medical School, 1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, JapanDepartment of Cardiology, Osaka City General Hospital, 2-13-22 Miyakojima-hondori, Miyakojima-ku, Osaka 534-0021, JapanDepartment of Cardiology, Osaka City General Hospital, 2-13-22 Miyakojima-hondori, Miyakojima-ku, Osaka 534-0021, JapanDepartment of Cardiology, Osaka City General Hospital, 2-13-22 Miyakojima-hondori, Miyakojima-ku, Osaka 534-0021, JapanDepartment of Cardiology, Osaka City General Hospital, 2-13-22 Miyakojima-hondori, Miyakojima-ku, Osaka 534-0021, JapanDepartment of Cardiology, Osaka City General Hospital, 2-13-22 Miyakojima-hondori, Miyakojima-ku, Osaka 534-0021, JapanWe report the case of a 19-year-old man with verapamil-sensitive idiopathic left ventricular tachycardia (ILVT), who had paroxysmal palpitations for 3 years. Programmed right atrial and ventricular stimulation easily induced ventricular tachycardia (VT) with QRS duration of 125 ms, right bundle branch block pattern, and right inferior axis, which are characteristics of ILVT. Left ventricular endocardial mapping accidentally produced a complete left bundle branch block and provoked prolongation of the QRS duration of VT, which was 143 ms. However, no changes occurred in the cycle length, inducibility, or maintenance of VT. The VT was eliminated successfully by catheter ablation at the pre-Purkinje potential (PP) recording site. These findings suggest that the main trunk of the left bundle branch is not a critical component of the re-entry circuit of ILVT.http://www.sciencedirect.com/science/article/pii/S1880427612000427Verapamil-sensitive idiopathic left ventricular tachycardiaLeft main bundle branchLeft bundle branch blockVentricular tachycardia circuitLeft ventricular mapping |
| spellingShingle | Eiichiro Nakagawa, MD, PhD Masahiko Takagi, MD, PhD Yukio Abe, MD Rhyshi Komatsu, MD, PhD Kazuo Haze, MD, PhD Takahiko Naruko, MD, PhD Akira Itoh, MD, PhD The main trunk of the left bundle branch is not part of the re-entry circuit of verapamil-sensitive idiopathic left ventricular tachycardia Journal of Arrhythmia Verapamil-sensitive idiopathic left ventricular tachycardia Left main bundle branch Left bundle branch block Ventricular tachycardia circuit Left ventricular mapping |
| title | The main trunk of the left bundle branch is not part of the re-entry circuit of verapamil-sensitive idiopathic left ventricular tachycardia |
| title_full | The main trunk of the left bundle branch is not part of the re-entry circuit of verapamil-sensitive idiopathic left ventricular tachycardia |
| title_fullStr | The main trunk of the left bundle branch is not part of the re-entry circuit of verapamil-sensitive idiopathic left ventricular tachycardia |
| title_full_unstemmed | The main trunk of the left bundle branch is not part of the re-entry circuit of verapamil-sensitive idiopathic left ventricular tachycardia |
| title_short | The main trunk of the left bundle branch is not part of the re-entry circuit of verapamil-sensitive idiopathic left ventricular tachycardia |
| title_sort | main trunk of the left bundle branch is not part of the re entry circuit of verapamil sensitive idiopathic left ventricular tachycardia |
| topic | Verapamil-sensitive idiopathic left ventricular tachycardia Left main bundle branch Left bundle branch block Ventricular tachycardia circuit Left ventricular mapping |
| url | http://www.sciencedirect.com/science/article/pii/S1880427612000427 |
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