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Zhang W, Huang K, Qu J, Su G, Li X, Kong Q, Jiang H. A novel ECG algorithm to differentiate between ventricular arrhythmia from right versus left ventricular outflow tract. J Cardiovasc Med (Hagerstown) 2023; 24:853-863. [PMID: 37724483 DOI: 10.2459/jcm.0000000000001559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
AIM The aim of this study was to evaluate the accuracy of the diagnostic criteria for determining the origin of outflow tract ventricular arrhythmia (OTVA) and develop an ECG algorithm to predict its origin. METHOD We analyzed the ECGs of 100 patients with OTVA who underwent successful ablation. The QRS complex was measured during sinus rhythm and ventricular arrhythmia. After the ECG algorithm was developed, it was validated in an additional 100 patients from two different hospitals. RESULTS In this retrospective study, among the parameters without restrictions in the transition lead, the V2S/V3R index (AUC = 0.96) was significantly better in predicting ventricular arrhythmia originating from the right ventricular outflow tract (RVOT). Further, the larger initial r wave surface area (ISA) in V1 and V2 (AUC = 0.06) was significantly better in predicting ventricular arrhythmias originating from the left ventricular outflow tract (LVOT). Among the parameters with the transition lead in V3, the V2S/V3R index (AUC = 0.82) was significantly better in predicting VAs originating from the RVOT. On the contrary, the V3 R-wave deflection interval (AUC = 0.19) was significantly better in predicting ventricular arrhythmias originating from the LVOT. The algorithm combining the V2S/V3R index and the larger ISA in V1 and V2 could predict OTVA origin with an accuracy of 95.00%, a sensitivity of 87.18%, a specificity of 100.00%, a positive predictive value (PPV) of 100.00%, and a negative predictive value (NPV) of 92.42%. In the validation study, the algorithm exhibited excellent accuracy (95.00%) and AUC (AUC = 0.95), with a sensitivity of 94.12%, a specificity of 95.45%, a PPV of 91.43%, and an NPV of 96.92%. CONCLUSION Our developed algorithm can reliably predict OTVA origin without restrictions in the transition lead.
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Affiliation(s)
- Wei Zhang
- Department of Cardiology, Chest Hospital, Tianjin University
- Tianjin Key Laboratory of Cardiovascular Emergency and Critical Care, Tianjin Municipal Science and Technology Bureau, Tianjin
| | - Kui Huang
- Department of Cardiology, Chest Hospital, Tianjin University
- Tianjin Key Laboratory of Cardiovascular Emergency and Critical Care, Tianjin Municipal Science and Technology Bureau, Tianjin
| | - Jun Qu
- Department of Cardiology, Qindao University Medical College Affiliated Yantai Yuhuangding Hospital, Yantai
| | - Guoying Su
- Department of Cardiology, Central Hospital Affiliated to Shandong First Medical University (Previous Name: Jinan Central Hospital Affiliated to Shandong University), Jinan, Shangdong, China
| | - Xinyun Li
- Department of Cardiology, Central Hospital Affiliated to Shandong First Medical University (Previous Name: Jinan Central Hospital Affiliated to Shandong University), Jinan, Shangdong, China
| | - Qingzan Kong
- Department of Cardiology, Central Hospital Affiliated to Shandong First Medical University (Previous Name: Jinan Central Hospital Affiliated to Shandong University), Jinan, Shangdong, China
| | - Hua Jiang
- Department of Cardiology, Chest Hospital, Tianjin University
- Tianjin Key Laboratory of Cardiovascular Emergency and Critical Care, Tianjin Municipal Science and Technology Bureau, Tianjin
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The RV 1-V 3 transition ratio: A novel electrocardiographic criterion for the differentiation of right versus left outflow tract premature ventricular complexes. Heart Rhythm O2 2021; 2:521-528. [PMID: 34667968 PMCID: PMC8505196 DOI: 10.1016/j.hroo.2021.07.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Background Several electrocardiographic (ECG) indices have been proposed to predict the origin of premature ventricular complexes (PVCs) with precordial transition in lead V3. However, the accuracy of these algorithms is limited. Objectives We sought to evaluate a new ECG criterion differentiating the origin of outflow tract with precordial transition in lead V3. Methods We included in our study patients exhibiting outflow tract PVCs with precordial transition in lead V3 referred for ablation. We analyzed a novel new ECG criterion, RV1-V3 transition ratio, for distinguishing right from left idiopathic outflow tract PVCs with precordial transition in lead V3. The RV1-V3 transition ratio was defined as (RV1+RV2+RV3) PVC / (RV1+RV2+RV3) SR (sinus rhythm). Results We included 58 patients in our study. The ratio was lower for right ventricular outflow tract origins than left ventricular outflow tract (LVOT) origins (median [interquartile range], 0.6953 [0.4818–1.0724] vs 1.5219 [1.1582–2.4313], P < .001). Receiver operating characteristic analysis revealed an area under the curve of 0.856 for the ratio, and a cut-off value of ≥0.9 predicting LVOT origin with 94% sensitivity and 73% specificity. This ratio was superior to any previously proposed ECG criterion for differentiating right from left outflow tract PVCs. Conclusion The RV1-V3 transition ratio is a simple and accurate novel ECG criterion for distinguishing right from left idiopathic outflow tract PVCs with precordial transition in lead V3.
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Di C, Wan Z, Tse G, Letsas KP, Liu T, Efremidis M, Li J, Lin W. The V 1-V 3 transition index as a novel electrocardiographic criterion for differentiating left from right ventricular outflow tract ventricular arrhythmias. J Interv Card Electrophysiol 2019; 56:37-43. [PMID: 31478158 DOI: 10.1007/s10840-019-00612-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 08/12/2019] [Indexed: 10/26/2022]
Abstract
PURPOSE The aim of this study was to develop a new electrocardiographic criterion for differentiating the origin of outflow tract ventricular arrhythmias (OT-VAs) with precordial transition in lead V3. METHODS A total of 147 consecutive patients with OT-VAs displaying precordial transition in lead V3 who underwent successful catheter ablation in the right ventricular outflow tract (RVOT) (n = 118) or left ventricular outflow tract (LVOT) (n = 29) were included in this study. The V1-V3 transition index was defined as the sum of S-wave amplitude in lead V1 and V2 during premature ventricular contractions (PVCs) divided by the S-wave amplitude during sinus rhythm (SR), respectively, minus the sum of R-wave amplitude in lead V1, V2, and V3 during PVCs divided by the R-wave amplitude during SR, respectively, i.e., [(SPVC/SSR)V1 + (SPVC/SSR)V2] - [(RPVC/RSR) V1 + (RPVC/RSR)V2 + (RPVC/RSR)V3]. RESULTS The V1-V3 transition index was significantly higher for RVOT origins than for LVOT origins (1.25 ± 2.48 vs. - 3.94 ± 3.11; P < 0.001). Receiver operating characteristic (ROC) analysis revealed an area under the curve (AUC) of 0.931 for the V1-V3 transition index, and a cutoff value of > - 1.60 predicted a RVOT origin with a 93% sensitivity and 86% specificity. With respect to AUC and accuracy, the V1-V3 transition index was superior to any previously proposed ECG indices for differentiating left from right OT-VAs. In 37 prospective cases, the new index was able to predict the site of a RVOT origin with 95% accuracy (35 of 37 cases). CONCLUSIONS The V1-V3 transition index is a useful novel ECG criterion for distinguishing left from right OT-VAs with precordial transition in lead V3.
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Affiliation(s)
- Chengye Di
- First Department of Cardiology, TEDA International Cardiovascular Hospital, Tianjin, People's Republic of China
| | - Zheng Wan
- Cardiovascular Center, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
| | - Gary Tse
- Department of Medicine and Therapeutics, Chinese University of Hong Kong, Hong Kong, SAR, People's Republic of China.,Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Hong Kong, SAR, People's Republic of China
| | - Konstantinos P Letsas
- Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, Evangelismos General Hospital of Athens, 10676, Athens, Greece
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
| | - Michael Efremidis
- Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, Evangelismos General Hospital of Athens, 10676, Athens, Greece
| | - Jianming Li
- Department of Cardiovascular Division, Minneapolis Veterans Affairs Medical Center, University of Minnesota, Minneapolis, MN, USA
| | - Wenhua Lin
- First Department of Cardiology, TEDA International Cardiovascular Hospital, Tianjin, People's Republic of China.
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Kaypakli O, Koca H, Sahin DY, Karataş F, Ozbicer S, Koç M. S-R difference in V1-V2 is a novel criterion for differentiating the left from right ventricular outflow tract arrhythmias. Ann Noninvasive Electrocardiol 2017; 23:e12516. [PMID: 29226502 DOI: 10.1111/anec.12516] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 10/17/2017] [Indexed: 01/19/2023] Open
Abstract
AIM The correct estimation of the VA origin as RVOT or LVOT results in reduced ablation duration reduced radiation exposure and decreased number of vascular access. In our study, we aimed to detect the predictive value of S-R difference in V1-V2 for differentiating the left from right ventricular outflow tract arrhythmias. METHODS We included 123 patients with symptomatic frequent premature ventricular outflow tract contractions who underwent successful catheter ablation (70 male, 53 female; mean age 46.2 ± 13.9 years, 61 RVOT, 62 LVOT origins). S-R difference in V1-V2 was calculated with this formula on the 12-lead surface ECG: (V1S + V2S) - (V1R + V2R). Conventional ablation was performed in 101 (82.1%) patients, CARTO electroanatomic mapping system was used in 22 (17.9%) patients. RESULTS V1-2 SRd was found to be significantly lower for LVOT origins than RVOT origins (p < .001). The cutoff value of V1-2 SRd obtained by ROC curve analysis was 1.625 mV for prediction of RVOT origin (sensitivity: 95.1%, specificity: 85.5%, positive predictive value: 86.5%, negative predictive value: 94.5%). The area under the curve (AUC) was 0.929 (p < .001). CONCLUSION S-R difference in V1-V2 is a novel and simple electrocardiographic criterion for accurately differentiating RVOT from LVOT sites of ventricular arrhythmia origins. The use of this simple ECG measurement could improve the accuracy of OTVA localization, could be beneficial for decreasing ablation duration and radiation exposure. Further studies with larger patient population are needed to verify the results of this study.
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Affiliation(s)
- Onur Kaypakli
- Department of Cardiology, Mustafa Kemal Universitesi Tayfur Ata Sokmen Tip Fakultesi, Hatay, Turkey
| | - Hasan Koca
- Department of Cardiology, Adana Numune Training and Research Hospital, Health Sciences University, Adana, Turkey
| | - Durmus Yıldıray Sahin
- Department of Cardiology, Adana Numune Training and Research Hospital, Health Sciences University, Adana, Turkey
| | - Fadime Karataş
- Department of Cardiology, Adana Numune Training and Research Hospital, Health Sciences University, Adana, Turkey
| | - Suleyman Ozbicer
- Department of Cardiology, Adana Numune Training and Research Hospital, Health Sciences University, Adana, Turkey
| | - Mevlüt Koç
- Department of Cardiology, Adana Numune Training and Research Hospital, Health Sciences University, Adana, Turkey
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Nguyen MB, Ceresnak SR, Janson CM, Fishberger SB, Love BA, Blaufox AD, Motonaga KS, Dubin AM, Nappo L, Pass RH. A multicenter review of ablation in the aortic cusps in young people. PACING AND CLINICAL ELECTROPHYSIOLOGY: PACE 2017; 40:798-802. [DOI: 10.1111/pace.13126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 03/22/2017] [Accepted: 05/02/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Minh B. Nguyen
- The Children's Hospital at Montefiore Medical Center; Albert Einstein College of Medicine; Bronx NY USA
| | - Scott R. Ceresnak
- Lucile Packard Children's Hospital; Stanford University; Palo Alto CA USA
| | - Christopher M. Janson
- The Children's Hospital at Montefiore Medical Center; Albert Einstein College of Medicine; Bronx NY USA
| | | | - Barry A. Love
- Mt. Sinai Medical Center; Icahn School of Medicine; New York NY USA
| | - Andrew D. Blaufox
- Cohen Children's Medical Center of New York; Hofstra School of Medicine; New Hyde Park NY USA
| | - Kara S. Motonaga
- Lucile Packard Children's Hospital; Stanford University; Palo Alto CA USA
| | - Anne M. Dubin
- Lucile Packard Children's Hospital; Stanford University; Palo Alto CA USA
| | - Lynn Nappo
- The Children's Hospital at Montefiore Medical Center; Albert Einstein College of Medicine; Bronx NY USA
| | - Robert H. Pass
- The Children's Hospital at Montefiore Medical Center; Albert Einstein College of Medicine; Bronx NY USA
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Letsas KP, Efremidis M, Vlachos K, Georgopoulos S, Karamichalakis N, Saplaouras A, Xydonas S, Valkanas K, Sideris A. Catheter ablation of anteroseptal accessory pathways from the aortic cusps: A case series and a review of the literature. J Arrhythm 2016; 32:443-448. [PMID: 27920827 PMCID: PMC5129122 DOI: 10.1016/j.joa.2016.02.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 02/05/2016] [Accepted: 02/29/2016] [Indexed: 10/26/2022] Open
Abstract
Data regarding catheter ablation of anteroseptal accessory pathways through the aortic cusps are limited. We describe two cases of true para-Hisian accessory pathways successfully ablated from the aortic cusps (right coronary cusp and non-coronary cusp, respectively) along with a review of the current literature. Due to the close proximity to the atrioventricular node and the high risk of complication, mapping of the aortic cusps should always be considered in the case of anteroseptal accessory pathways. Anteroseptal accessory pathways can be safely and effectively ablated from the aortic cusps with good long-term outcomes.
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Affiliation(s)
- Konstantinos P Letsas
- Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, Evangelismos General Hospital of Athens, 10676 Athens, Greece
| | - Michael Efremidis
- Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, Evangelismos General Hospital of Athens, 10676 Athens, Greece
| | - Konstantinos Vlachos
- Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, Evangelismos General Hospital of Athens, 10676 Athens, Greece
| | - Stamatis Georgopoulos
- Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, Evangelismos General Hospital of Athens, 10676 Athens, Greece
| | - Nikolaos Karamichalakis
- Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, Evangelismos General Hospital of Athens, 10676 Athens, Greece
| | - Athanasios Saplaouras
- Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, Evangelismos General Hospital of Athens, 10676 Athens, Greece
| | - Sotirios Xydonas
- Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, Evangelismos General Hospital of Athens, 10676 Athens, Greece
| | - Kosmas Valkanas
- Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, Evangelismos General Hospital of Athens, 10676 Athens, Greece
| | - Antonios Sideris
- Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, Evangelismos General Hospital of Athens, 10676 Athens, Greece
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Asirvatham SJ, Stevenson WG. In the middle. Circ Arrhythm Electrophysiol 2014; 7:982-3. [PMID: 25336369 DOI: 10.1161/circep.114.002202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Samuel J Asirvatham
- From the Division of Cardiovascular Diseases, Department of Medicine, Department of Pediatrics and Adolescent Medicine, Mayo Clinic, Rochester, MN (S.J.A.); and Department of Medicine, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S.).
| | - William G Stevenson
- From the Division of Cardiovascular Diseases, Department of Medicine, Department of Pediatrics and Adolescent Medicine, Mayo Clinic, Rochester, MN (S.J.A.); and Department of Medicine, Cardiovascular Division, Brigham and Women's Hospital, Boston, MA (W.G.S.)
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YOSHIDA NAOKI, YAMADA TAKUMI, MCELDERRY HTHOMAS, INDEN YASUYA, SHIMANO MASAYUKI, MUROHARA TOYOAKI, KUMAR VINEET, DOPPALAPUDI HARISH, PLUMB VANCEJ, KAY GNEAL. A Novel Electrocardiographic Criterion for Differentiating a Left from Right Ventricular Outflow Tract Tachycardia Origin: The V2S/V3R Index. J Cardiovasc Electrophysiol 2014; 25:747-53. [DOI: 10.1111/jce.12392] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 01/28/2014] [Accepted: 02/10/2014] [Indexed: 11/27/2022]
Affiliation(s)
- NAOKI YOSHIDA
- Division of Cardiovascular Disease; University of Alabama at Birmingham; Birmingham Alabama USA
| | - TAKUMI YAMADA
- Division of Cardiovascular Disease; University of Alabama at Birmingham; Birmingham Alabama USA
| | - H. THOMAS MCELDERRY
- Division of Cardiovascular Disease; University of Alabama at Birmingham; Birmingham Alabama USA
| | - YASUYA INDEN
- Department of Cardiology; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - MASAYUKI SHIMANO
- Department of Cardiology; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - TOYOAKI MUROHARA
- Department of Cardiology; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - VINEET KUMAR
- Division of Cardiovascular Disease; University of Alabama at Birmingham; Birmingham Alabama USA
| | - HARISH DOPPALAPUDI
- Division of Cardiovascular Disease; University of Alabama at Birmingham; Birmingham Alabama USA
| | - VANCE J. PLUMB
- Division of Cardiovascular Disease; University of Alabama at Birmingham; Birmingham Alabama USA
| | - G. NEAL KAY
- Division of Cardiovascular Disease; University of Alabama at Birmingham; Birmingham Alabama USA
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EBRILLE ELISA, CHANDRA VISHNUM, SYED FAISAL, DEL CARPIO MUNOZ FREDDY, NANDA SUDIP, HAI JOJO, CHA YONGMEI, FRIEDMAN PAULA, HAMMILL STEPHENC, MUNGER THOMASM, VENKATACHALAM K, PACKER DOUGLASL, ASIRVATHAM SAMUELJ. Distinguishing Ventricular Arrhythmia Originating from the Right Coronary Cusp, Peripulmonic Valve Area, and the Right Ventricular Outflow Tract: Utility of Lead I. J Cardiovasc Electrophysiol 2014; 25:404-410. [DOI: 10.1111/jce.12330] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 10/18/2013] [Accepted: 11/01/2013] [Indexed: 12/01/2022]
Affiliation(s)
- ELISA EBRILLE
- Division of Cardiovascular Diseases; Department of Medicine, Mayo Clinic; Rochester Minnesota USA
| | | | - FAISAL SYED
- Division of Cardiovascular Diseases; Department of Medicine, Mayo Clinic; Rochester Minnesota USA
| | - FREDDY DEL CARPIO MUNOZ
- Division of Cardiovascular Diseases; Department of Medicine, Mayo Clinic; Rochester Minnesota USA
| | - SUDIP NANDA
- Division of Cardiovascular Diseases; Department of Medicine, Mayo Clinic; Rochester Minnesota USA
| | - JO JO HAI
- Division of Cardiology; Department of Medicine; Queen Mary Hospital; Hong Kong
| | - YONG-MEI CHA
- Division of Cardiovascular Diseases; Department of Medicine, Mayo Clinic; Rochester Minnesota USA
| | - PAUL A. FRIEDMAN
- Division of Cardiovascular Diseases; Department of Medicine, Mayo Clinic; Rochester Minnesota USA
| | - STEPHEN C. HAMMILL
- Division of Cardiovascular Diseases; Department of Medicine, Mayo Clinic; Rochester Minnesota USA
| | - THOMAS M. MUNGER
- Division of Cardiovascular Diseases; Department of Medicine, Mayo Clinic; Rochester Minnesota USA
| | - K.L. VENKATACHALAM
- Mayo Clinic Jacksonville Florida; Division of Cardiology; Jacksonville Florida USA
| | - DOUGLAS L. PACKER
- Division of Cardiovascular Diseases; Department of Medicine, Mayo Clinic; Rochester Minnesota USA
| | - SAMUEL J. ASIRVATHAM
- Division of Cardiovascular Diseases; Department of Medicine, Mayo Clinic; Rochester Minnesota USA
- Department of Pediatrics and Adolescent Medicine Mayo Clinic; Rochester Minnesota USA
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Abstract
Idiopathic ventricular arrhythmias occur in patients without structural heart disease. They can arise from a variety of specific areas within both ventricles and in the supravalvular regions of the great arteries. Two main groups need to be differentiated: arrhythmias from the outflow tract (OT) region and idiopathic left ventricular, so-called fascicular, tachycardias (ILVTs). OT tachycardia typically originates in the right ventricular OT, but may also occur in the left ventricular OT, particularly in the sinuses of Valsalva or the anterior epicardium or the great cardiac vein. Activation mapping or pace mapping for the OT regions and mapping of diastolic potentials in ILVTs are the mapping techniques that are typically used. The ablation of idiopathic ventricular arrhythmias is highly successful, associated with only rare complications. Newly recognized entities of idiopathic ventricular tachycardias are those originating in the papillary muscles and in the atrioventricular annular regions.
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Affiliation(s)
- Doreen Schreiber
- Department of Electrophysiology, Clinic Hirslanden - Heart Center, Witellikerstrasse 40, CH - 8032, Zurich, Switzerland.
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LACHMAN NIRUSHA, SYED FAISALF, HABIB AMMAR, KAPA SURAJ, BISCO SUSANE, VENKATACHALAM KL, ASIRVATHAM SAMUELJ. Correlative Anatomy for the Electrophysiologist, Part I: The Pericardial Space, Oblique Sinus, Transverse Sinus. J Cardiovasc Electrophysiol 2010; 21:1421-6. [DOI: 10.1111/j.1540-8167.2010.01872.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Rillig A, Meyerfeldt U, Birkemeyer R, Jung W. Ablation within the sinus of Valsalva for treatment of supraventricular and ventricular tachycardias: what is known so far? Europace 2009; 11:1142-50. [DOI: 10.1093/europace/eup194] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Affiliation(s)
- Niloufar Tabatabaei
- From the Department of Internal Medicine (N.T., S.J.A.), Division of Cardiovascular Diseases, and the Department of Pediatric Cardiology (S.J.A.), Department of Pediatrics and Adolescent Medicine, Mayo Clinic, Rochester, Minn
| | - Samuel J. Asirvatham
- From the Department of Internal Medicine (N.T., S.J.A.), Division of Cardiovascular Diseases, and the Department of Pediatric Cardiology (S.J.A.), Department of Pediatrics and Adolescent Medicine, Mayo Clinic, Rochester, Minn
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Weber R, Letsas KP, Arentz T, Kalusche D. Adenosine sensitive focal atrial tachycardia originating from the non-coronary aortic cusp. Europace 2009; 11:823-6. [DOI: 10.1093/europace/eup086] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Bhushan M, Asirvatham SJ. The conundrum of ventricular arrhythmia and cardiomyopathy: Which abnormality came first? Curr Heart Fail Rep 2009; 6:7-13. [DOI: 10.1007/s11897-009-0003-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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