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Elkiran O, Akdeniz C, Karacan M, Tuzcu V. Electroanatomic mapping-guided catheter ablation of atrial tachycardia in children with limited/zero fluoroscopy. Pacing Clin Electrophysiol 2019; 42:453-457. [PMID: 30740745 DOI: 10.1111/pace.13619] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 12/29/2018] [Accepted: 01/30/2019] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Atrial tachycardia (AT) is an uncommon cause of supraventricular tachycardia in children and it is often resistant to medical therapy. Catheter ablation can be curative in children with AT. However, experience of ablation of pediatric AT is still very limited. The aim of this study, which is the largest series from a single center, was to assess the efficacy and safety of ablation of AT using an electroanatomical-mapping system. METHODS It was a retrospective review of 39 children with AT who underwent catheter ablation procedure using the EnSite Velocity system (St. Jude Medical, St. Paul, MN, USA) between July 2012 and April 2017. RESULTS The mean patient age was 13.32 ± 6.82 years. The location of AT was right sided in 25 and left sided in 13, and both sides in one patient. The mean procedure time was 184.23 ± 60.19 min. Fluoroscopy was not used in 25 of 39 patients. The mean fluoroscopy time in the remaining patients was 5.53 ± 5.22 min. Radiofrequency (RF) ablation was used in 22, cryoablation was used in 10, and both RF and cryoablation were used in seven. Acute success was achieved in 34 patients (87.2%). During a mean follow-up of 51.35 ± 12.62 months, AT recurred in five patients. These patients underwent second ablation procedures and four of them were successful. Final success was achieved in 33 out of 39 patients (84.6%). There were no complications except for one patient who had an uneventful pericardial needle injury during transseptal puncture without effusion. CONCLUSIONS Catheter ablation of AT in children can be performed safely and effectively with a limited fluoroscopy using electroanatomical mapping systems.
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Affiliation(s)
- Ozlem Elkiran
- Department of Pediatric Cardiology, Faculty of Medicine, Inonu University, Malatya, Turkey
| | - Celal Akdeniz
- Department of Pediatric Cardiology/Electrophysiology, Istanbul Medipol University Hospital, Istanbul, Turkey
| | - Mehmet Karacan
- Department of Pediatric Cardiology/Electrophysiology, Istanbul Medipol University Hospital, Istanbul, Turkey
| | - Volkan Tuzcu
- Department of Pediatric Cardiology/Electrophysiology, Istanbul Medipol University Hospital, Istanbul, Turkey
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Manolis AS, Lazaridis K. Focal atrial tachycardia ablation: Highly successful with conventional mapping. J Interv Card Electrophysiol 2019; 55:35-46. [PMID: 30506176 DOI: 10.1007/s10840-018-0493-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 11/19/2018] [Indexed: 10/27/2022]
Abstract
BACKGROUND/OBJECTIVE Radiofrequency catheter ablation (RFCA) of focal atrial tachycardia (FAT) traditionally is guided by conventional endocardial mapping of earliest atrial activation; however, more recently electro-anatomical mapping is heralded as a more effective, albeit more expensive, tool to guide ablation. Herein we present the results of conventional mapping-guided RFCA. Apropos, we conducted a literature search of studies reporting > 10 FAT patients submitted to RFCA. METHODS AND RESULTS Conventional mapping-guided RFCA, performed in 63 FAT patients (aged 42.4 + 17.3 years; 14 with incessant tachycardia and 12 with tachycardiomyopathy (TCM)), was successful in 61 (96.8%) patients, applied for single foci in 59 (93.7%) and two foci in 4 patients, right (n = 46) or left sided (n = 17). The earliest atrial activation time at the ablation site was 41.3 ± 16.2 ms. Fluoroscopy time averaged 27.3 + 18.7 min, and procedure lasted 2.6 + 1.7 h. Complications occurred in two patients (sinus pauses in one needing a pacemaker and a large inguinal hematoma in one). Over 29.0 + 22.9 months, four patients (6.5%) had recurrences, of whom three were successfully re-ablated. All patients with TCM showed gradual improvement to normalization over 4-6 months. Literature search showed that RFCA success is equally high when guided with either conventional (88.5%) or electro-anatomical mapping (90%) with similar recurrences (9.6% vs. 9.5%). CONCLUSION Conventional mapping-guided RFCA of FAT had high success (96.8%) with low complication (3.2%) and recurrence rates (6.5%). TCM was fully reversible. These results are comparable to those achieved with the more expensive electro-anatomical mapping, which may be reserved for more complex cases or for those failing the conventional approach.
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Page RL, Joglar JA, Caldwell MA, Calkins H, Conti JB, Deal BJ, Estes NM, Field ME, Goldberger ZD, Hammill SC, Indik JH, Lindsay BD, Olshansky B, Russo AM, Shen WK, Tracy CM, Al-Khatib SM. 2015 ACC/AHA/HRS Guideline for the Management of Adult Patients With Supraventricular Tachycardia. Circulation 2016; 133:e506-74. [DOI: 10.1161/cir.0000000000000311] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | | | | | - Hugh Calkins
- Writing committee members are required to recuse themselves from voting on sections to which their specific relationships with industry and other entities may apply; see Appendix 1 for recusal information. HRS Representative. ACC/AHA Representative. ACC/AHA Task Force on Performance Measures Liaison. ACC/AHA Task Force on Clinical Practice Guidelines Liaison. Former Task Force member; current member during this writing effort
| | - Jamie B. Conti
- Writing committee members are required to recuse themselves from voting on sections to which their specific relationships with industry and other entities may apply; see Appendix 1 for recusal information. HRS Representative. ACC/AHA Representative. ACC/AHA Task Force on Performance Measures Liaison. ACC/AHA Task Force on Clinical Practice Guidelines Liaison. Former Task Force member; current member during this writing effort
| | - Barbara J. Deal
- Writing committee members are required to recuse themselves from voting on sections to which their specific relationships with industry and other entities may apply; see Appendix 1 for recusal information. HRS Representative. ACC/AHA Representative. ACC/AHA Task Force on Performance Measures Liaison. ACC/AHA Task Force on Clinical Practice Guidelines Liaison. Former Task Force member; current member during this writing effort
| | - N.A. Mark Estes
- Writing committee members are required to recuse themselves from voting on sections to which their specific relationships with industry and other entities may apply; see Appendix 1 for recusal information. HRS Representative. ACC/AHA Representative. ACC/AHA Task Force on Performance Measures Liaison. ACC/AHA Task Force on Clinical Practice Guidelines Liaison. Former Task Force member; current member during this writing effort
| | - Michael E. Field
- Writing committee members are required to recuse themselves from voting on sections to which their specific relationships with industry and other entities may apply; see Appendix 1 for recusal information. HRS Representative. ACC/AHA Representative. ACC/AHA Task Force on Performance Measures Liaison. ACC/AHA Task Force on Clinical Practice Guidelines Liaison. Former Task Force member; current member during this writing effort
| | - Zachary D. Goldberger
- Writing committee members are required to recuse themselves from voting on sections to which their specific relationships with industry and other entities may apply; see Appendix 1 for recusal information. HRS Representative. ACC/AHA Representative. ACC/AHA Task Force on Performance Measures Liaison. ACC/AHA Task Force on Clinical Practice Guidelines Liaison. Former Task Force member; current member during this writing effort
| | - Stephen C. Hammill
- Writing committee members are required to recuse themselves from voting on sections to which their specific relationships with industry and other entities may apply; see Appendix 1 for recusal information. HRS Representative. ACC/AHA Representative. ACC/AHA Task Force on Performance Measures Liaison. ACC/AHA Task Force on Clinical Practice Guidelines Liaison. Former Task Force member; current member during this writing effort
| | - Julia H. Indik
- Writing committee members are required to recuse themselves from voting on sections to which their specific relationships with industry and other entities may apply; see Appendix 1 for recusal information. HRS Representative. ACC/AHA Representative. ACC/AHA Task Force on Performance Measures Liaison. ACC/AHA Task Force on Clinical Practice Guidelines Liaison. Former Task Force member; current member during this writing effort
| | - Bruce D. Lindsay
- Writing committee members are required to recuse themselves from voting on sections to which their specific relationships with industry and other entities may apply; see Appendix 1 for recusal information. HRS Representative. ACC/AHA Representative. ACC/AHA Task Force on Performance Measures Liaison. ACC/AHA Task Force on Clinical Practice Guidelines Liaison. Former Task Force member; current member during this writing effort
| | - Brian Olshansky
- Writing committee members are required to recuse themselves from voting on sections to which their specific relationships with industry and other entities may apply; see Appendix 1 for recusal information. HRS Representative. ACC/AHA Representative. ACC/AHA Task Force on Performance Measures Liaison. ACC/AHA Task Force on Clinical Practice Guidelines Liaison. Former Task Force member; current member during this writing effort
| | - Andrea M. Russo
- Writing committee members are required to recuse themselves from voting on sections to which their specific relationships with industry and other entities may apply; see Appendix 1 for recusal information. HRS Representative. ACC/AHA Representative. ACC/AHA Task Force on Performance Measures Liaison. ACC/AHA Task Force on Clinical Practice Guidelines Liaison. Former Task Force member; current member during this writing effort
| | - Win-Kuang Shen
- Writing committee members are required to recuse themselves from voting on sections to which their specific relationships with industry and other entities may apply; see Appendix 1 for recusal information. HRS Representative. ACC/AHA Representative. ACC/AHA Task Force on Performance Measures Liaison. ACC/AHA Task Force on Clinical Practice Guidelines Liaison. Former Task Force member; current member during this writing effort
| | - Cynthia M. Tracy
- Writing committee members are required to recuse themselves from voting on sections to which their specific relationships with industry and other entities may apply; see Appendix 1 for recusal information. HRS Representative. ACC/AHA Representative. ACC/AHA Task Force on Performance Measures Liaison. ACC/AHA Task Force on Clinical Practice Guidelines Liaison. Former Task Force member; current member during this writing effort
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Page RL, Joglar JA, Caldwell MA, Calkins H, Conti JB, Deal BJ, Estes III NM, Field ME, Goldberger ZD, Hammill SC, Indik JH, Lindsay BD, Olshansky B, Russo AM, Shen WK, Tracy CM, Al-Khatib SM. 2015 ACC/AHA/HRS guideline for the management of adult patients with supraventricular tachycardia. Heart Rhythm 2016; 13:e136-221. [DOI: 10.1016/j.hrthm.2015.09.019] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Indexed: 01/27/2023]
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Mora G. Capítulo 4. Utilidad del mapeo tridimensional en la ablación de la taquicardia auricular focal. Revista Colombiana de Cardiología 2016. [DOI: 10.1016/j.rccar.2016.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Page RL, Joglar JA, Caldwell MA, Calkins H, Conti JB, Deal BJ, Estes NAM, Field ME, Goldberger ZD, Hammill SC, Indik JH, Lindsay BD, Olshansky B, Russo AM, Shen WK, Tracy CM, Al-Khatib SM. 2015 ACC/AHA/HRS Guideline for the Management of Adult Patients With Supraventricular Tachycardia: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society. J Am Coll Cardiol 2015; 67:e27-e115. [PMID: 26409259 DOI: 10.1016/j.jacc.2015.08.856] [Citation(s) in RCA: 239] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Okubo K, Kuwahara T, Takagi K, Takigawa M, Nakajima J, Watari Y, Nakashima E, Yamao K, Fujino T, Tsutsui H, Takahashi A. Rapid Mapping of Right Atrial Tachycardia Using a New Multielectrode Basket Catheter. J Cardiovasc Electrophysiol 2015; 27:73-9. [PMID: 26331802 DOI: 10.1111/jce.12823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 08/21/2015] [Accepted: 08/26/2015] [Indexed: 11/28/2022]
Abstract
INTRODUCTION The mapping of atrial tachycardia (AT) can often be challenging and time-consuming, especially in patients with ATs that develop following cardiac surgery or are concomitant with atrial fibrillation. Recently, a new multielectrode basket catheter (MBC) has become available; we hypothesized that the MBC could be utilized to diagnose AT circuits. METHODS AND RESULTS This study included 51 consecutive patients undergoing catheter ablation of clinically documented right-sided ATs (including 17 cases following cardiac surgery). Using a NavX system, 2 activation maps of the ATs were created, one using the new MBC (32 mm, 31 poles) and the other using a circular catheter. The time needed to complete the activation maps and the points acquired with both mapping catheters were compared. In all 64 ATs, including 34 non-cavotricuspid isthmus-dependent ATs, the AT activation maps created by both catheters were essentially identical. The number of points acquired to complete the activation maps did not differ significantly between the MBC and the circular catheter (387 [285-511] vs. 374 [269-533], P = 0.19), but the mapping time was significantly shorter using the MBC (4.0 [3.0-6.0] minutes vs. 8.0 [6.5-10.0] minutes, P < 0.0001). Inadvertent mechanical AT termination (n = 6) was observed only during mapping with the circular catheter. CONCLUSION In patients with right-sided ATs, the use of an MBC could save mapping time.
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Affiliation(s)
- Kenji Okubo
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan.,Department of Cardiovascular Medicine, Hokkaido University, Sapporo, Japan
| | - Taishi Kuwahara
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Katsumasa Takagi
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | | | - Jun Nakajima
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Yuji Watari
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Emiko Nakashima
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Kazuya Yamao
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Tadashi Fujino
- Cardiovascular Center, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Hokkaido University, Sapporo, Japan
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Abstract
Atrial tachycardia and atrial flutter are common tachyarrhythmias in the heart failure population. They commonly lead to, exacerbate, and increase the morbidity and mortality associated with heart failure and, thereby, warrant urgent and early definitive therapy in the form of catheter ablation. Catheter ablation requires careful patient stabilization and extensive preprocedural planning, particularly with regards to anesthesia, strategy, catheter choice, mapping system, and fluid balance, to increase efficacy and limit adverse effects. Heart failure may limit the success of catheter ablation with higher reported recurrence rates, and in selected patients, a hybrid epicardial-endocardial ablation can be considered.
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Affiliation(s)
- Ayotunde Bamimore
- Division of Cardiology, University of North Carolina, Chapel Hill, 160 Dental Circle, Burnett-Womack Building, CB #7075, Chapel Hill, NC 27599, USA
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Abstract
Catheter ablation is at the forefront of the management of a range of atrial arrhythmias. In this Series paper, we discuss the underlying mechanisms and the current role of catheter ablation for the three most common atrial arrhythmias encountered in clinical practice: focal atrial tachycardia, atrial flutter, and atrial fibrillation. The mechanisms of focal atrial tachycardia and atrial flutter are well understood, and these arrhythmias are amenable to curative catheter ablation with high success rates. In most cases, paroxysmal atrial fibrillation is initiated by triggers located within pulmonary vein musculature. Circumferential ablation to isolate this musculature is associated with high success rates for elimination of paroxysmal atrial fibrillation in selected populations. Because of the problem of recurrent pulmonary vein connection, more than one procedure will be needed in about 30% of patients, and new technologies are being developed to reduce this occurrence. The mechanisms that sustain persistent atrial fibrillation are not well understood and are the subject of continuing investigation. As such, ablation approaches and technologies for this arrhythmia are still evolving.
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Affiliation(s)
- Geoffrey Lee
- Department of Cardiology, Royal Melbourne Hospital, Melbourne, VIC, Australia
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Wieczorek M, Salili AR, Kaubisch S, Hoeltgen R. Catheter ablation of non-sustained focal right atrial tachycardia guided by virtual non-contact electrograms. Europace 2011; 13:876-82. [DOI: 10.1093/europace/eur058] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Pott C, Dechering DG, Muszynski A, Zellerhoff S, Bittner A, Wasmer K, Mönnig G, Eckardt L. [Class I antiarrhythmic drugs: mechanisms, contraindications, and current indications]. Herzschrittmacherther Elektrophysiol 2010; 21:228-238. [PMID: 21113605 DOI: 10.1007/s00399-010-0090-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Class I antiarrhythmic drugs are sodium channel inhibitors that act by slowing myocardial conduction and, thus, interrupting or preventing reentrant arrhythmia. Due to proarrhythmic effects and the risk of ventricular tachyarrhythmia, class I antiarrhythmics should not be administered in patients with structural heart disease. Nevertheless, there remains a broad spectrum of arrhythmias--among the most common being atrial fibrillation--that can successfully be treated with class I antiarrhythmic drugs. This review gives an overview on the classification, antiarrhythmic mechanisms, indications, side effects, and application modes of class I antiarrhythmic drugs.
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MESH Headings
- Administration, Oral
- Adrenergic beta-Antagonists/therapeutic use
- Anti-Arrhythmia Agents/adverse effects
- Anti-Arrhythmia Agents/classification
- Anti-Arrhythmia Agents/therapeutic use
- Arrhythmias, Cardiac/chemically induced
- Arrhythmias, Cardiac/drug therapy
- Arrhythmias, Cardiac/mortality
- Atrial Fibrillation/drug therapy
- Atrial Fibrillation/mortality
- Contraindications
- Dose-Response Relationship, Drug
- Drug Therapy, Combination
- Electrocardiography/drug effects
- Female
- Heart Failure/complications
- Heart Failure/drug therapy
- Humans
- Infusions, Intravenous
- Myocardial Infarction/complications
- Myocardial Infarction/drug therapy
- Pregnancy
- Randomized Controlled Trials as Topic
- Sodium Channel Blockers/adverse effects
- Sodium Channel Blockers/classification
- Sodium Channel Blockers/therapeutic use
- Tachycardia, Atrioventricular Nodal Reentry/drug therapy
- Tachycardia, Supraventricular/drug therapy
- Tachycardia, Ventricular/drug therapy
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Affiliation(s)
- C Pott
- Medizinische Klinik C - Kardiologie und Angiologie, Universitätsklinikum Münster, Albert-Schweitzer Str. 33, 48149, Münster, Deutschland.
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Aktas MK, Khan MN, Di Biase L, Elayi C, Martin D, Saliba W, Cummings J, Schweikert R, Natale A. Higher rate of recurrent atrial flutter and atrial fibrillation following atrial flutter ablation after cardiac surgery. J Cardiovasc Electrophysiol 2010; 21:760-5. [PMID: 20132385 DOI: 10.1111/j.1540-8167.2009.01709.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Atrial flutter (AFL) is common after cardiac surgery. However, the types of post-cardiac surgery AFL, its response to catheter-based radiofrequency ablation, and its relationship to atrial fibrillation (AF) are unknown. METHODS AND RESULTS We retrospectively studied all patients who underwent mapping and ablation for AFL after cardiac surgery from January 1990 to July 2004. One hundred randomly selected patients without prior cardiac surgery (PCS) who underwent mapping and ablation of AFL served as the control population. A total of 236 patients formed the study population (mean age 62 + 13 years, 22% female) and 100 patients formed the control population (mean age 60 + 13 years, 25% female). The majority of patients without PCS had cavo-tricuspid isthmus (CTI)-dependent AFL when compared to patients with PCS (93% vs 72%, respectively, P < 0.0001). In contrast, scar-related AFL was more common in patients with PCS as compared to patients without PCS (22% vs 3%, P < 0.0001). Predictors of scar related AFL in multivariable regression analysis included PCS and left-sided AFL. Acute success rates and complications were similar between the groups. When compared to patients with AFL ablation without PCS, those that had AFL after PCS had higher rates of recurrence of both AFL (1% vs 12%, P < 0.0001; mean time to recurrence 1.85 years) and AF (16% vs 28%, P = 0.02; mean time to recurrence 2.67 years). CONCLUSION Despite ablation of AFL, patients with PCS have a higher rate of AFL and AF when compared to patients without PCS who underwent ablation of atrial flutter during long-term follow-up.
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Affiliation(s)
- Mehmet K Aktas
- University of Rochester Medical Center, Rochester, New York, USA
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Knecht S, Veenhuyzen G, O'Neill MD, Wright M, Nault I, Weerasooriya R, Miyazaki S, Sacher F, Hocini M, Jaïs P, Haïssaguerre M. Atrial Tachycardias Encountered in the Context of Catheter Ablation for Atrial Fibrillation Part II: Mapping and Ablation. Pacing and Clinical Electrophysiology 2009; 32:528-38. [PMID: 19335864 DOI: 10.1111/j.1540-8159.2009.02315.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sébastien Knecht
- Hôpital Cardiologique du Haut-Lévêque, Université Victor Segalen Bordeaux II, Bordeaux, France.
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Bastani H, Insulander P, Schwieler J, Tabrizi F, Braunschweig F, Kenneback G, Drca N, Sadigh B, Jensen-Urstad M. Safety and efficacy of cryoablation of atrial tachycardia with high risk of ablation-related injuries. Europace 2009; 11:625-9. [DOI: 10.1093/europace/eup004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Affiliation(s)
- Karl-Heinz Kuck
- AK St. Georg, II. Med. Abteilung (Kardiologie), Lohmühlenstr. 5, 20099, Hamburg, Germany.
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Roberts-Thomson KC, Kistler PM, Haqqani HM, McGavigan AD, Hillock RJ, Stevenson IH, Morton JB, Vohra JK, Sparks PB, Kalman JM. Focal Atrial Tachycardias Arising from the Right Atrial Appendage: Electrocardiographic and Electrophysiologic Characteristics and Radiofrequency Ablation. J Cardiovasc Electrophysiol 2007; 18:367-72. [PMID: 17286568 DOI: 10.1111/j.1540-8167.2006.00754.x] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To characterize the electrocardiographic and electrophysiological features and frequency of focal atrial tachycardia (AT) originating from the right atrial appendage (RAA). BACKGROUND The RAA has been described as a site of origin of AT, but detailed characterization of these tachycardias is limited. METHODS Ten patients (3.8%) of 261 undergoing radiofrequency ablation (RFA) for focal AT are reported. Endocardial activation maps (EAM) were recorded from catheters at the CS (10 pole), tricuspid annulus (20 pole Halo catheter), and His positions. P waves were classified as negative, positive, isoelectric, or biphasic. RESULTS The mean age was 39 +/- 20 years, nine males, with symptoms for 4.1 +/- 5.1 years. Tachycardia was incessant in seven patients, spontaneous in one patient, and induced by programmed extrastimuli in two patients. These foci had a characteristic P wave morphology. The P wave was negative in lead V(1) in all patients, becoming progressively positive across the precordial leads. The P waves in the inferior leads were low amplitude positive in the majority of patients. Earliest EAM activity occurred on the Halo catheter in all patients. Mean activation time at the successful RFA site =-38 +/- 15 msec. Irrigated catheters were used in six patients, due to difficulty achieving adequate power. RFA was acutely successful in all patients. Long-term success was achieved in all patients over a mean follow up of 8 +/- 7 months. CONCLUSIONS The RAA is an uncommon site of origin for focal AT (3.8%). It can be suspected as a potential anatomic site of AT origin from the characteristic P wave and activation timing. Irrigated ablation catheters are often required for successful ablation. Long-term success was achieved with focal ablation in all patients.
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Abstract
We report a patient with re-entrant atrial tachycardia that originated at the inferolateral tricuspid annulus. Single atrial extra-stimulation reproducibly induced the atrial tachycardia with an inverse relationship between the coupling interval of extra-stimulation and the return cycle of the first tachycardia beat. A real-time three-dimensional electroanatomical mapping showed focal atrial activation spreading semi-radially from the tricuspid annulus. The tachycardia was successfully eliminated by radiofrequency ablation at the earliest atrial activation site, preceding by 27 ms the arbitrary determined onset of surface P wave. An accelerated atrial rhythm with similar P-wave morphology to that of the tachycardia was observed at the successful ablation site during radiofrequency application. The mechanism of this tachycardia seems to be due to re-entry originating in or around the possible accessory atrioventricular node without ventricular connection.
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Affiliation(s)
- Yuji Okuyama
- Cardiovascular Division, Osaka Police Hospital, 10-31 Kitayama-cho, Tennoji-ku, Osaka, 543-0035, Japan.
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Abstract
Over the last decade there have been significant changes in the treatment of focal atrial tachycardia (AT). This review concentrates on the different approaches to the treatment of focal AT. Initial therapies included antiarrhythmic medications and surgery. However, with the advent of radiofrequency ablation, and the poor efficacy of pharmacological therapy, there has been a shift toward a primary ablative approach. Several different mapping techniques have been proposed. The different techniques, including P-wave morphology and advanced three-dimensional mapping, are discussed in this review.
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Kistler PM, Fynn SP, Haqqani H, Stevenson IH, Vohra JK, Morton JB, Sparks PB, Kalman JM. Focal Atrial Tachycardia From the Ostium of the Coronary Sinus. J Am Coll Cardiol 2005; 45:1488-93. [PMID: 15862424 DOI: 10.1016/j.jacc.2005.01.042] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2004] [Revised: 01/03/2005] [Accepted: 01/11/2005] [Indexed: 11/19/2022]
Abstract
OBJECTIVES The goal of this study was to characterize the electrocardiographic and electrophysiologic features and frequency of focal atrial tachycardia (AT) originating from the coronary sinus ostium (CS). BACKGROUND The ostium of the coronary sinus has been described as a site of origin of AT, but detailed characterization of these tachycardias is limited. METHODS Thirteen patients (6.7%) of 193 undergoing radiofrequency ablation (RFA) for focal AT are reported. Endocardial activation maps (EAM) were recorded from catheters at the CS (10 pole), crista terminalis (20 pole), and His positions. The P waves were classified negative, positive, isoelectric, or biphasic. RESULTS The mean age was 41 +/- 6 years, seven female patients, with symptoms for 8 +/- 3 years. Tachycardia was induced by programmed extra-stimuli in eight patients, was spontaneous in three patients, and in response to isoproterenol in two patients. These foci had a characteristic P-wave morphology. At the CS ostium, the P-wave was deeply negative in all inferior leads, negative or isoelectric becoming positive in lead V(1), then progressively negative across the precordium. Lead aVL was positive in all patients. Earliest EAM activity occurred at the proximal CS at 20 +/- 3 ms ahead of P-wave. Mean activation time at the successful RFA site = -36 +/- 8 ms; RFA was acutely successful in 11 of 13 patients. Long-term success was achieved in 11 of 11 over a median follow-up of 25 +/- 4 months. CONCLUSIONS The CS ostium is an uncommon site of origin for focal AT (6.7%). It can be suspected as a potential anatomic site of AT origin from the characteristic P-wave and activation timing. Long-term success was achieved with focal ablation in the majority of patients.
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Affiliation(s)
- Peter M Kistler
- Department of Cardiology, Royal Melbourne Hospital, University of Melbourne, Melbourne, Australia
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22
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Abstract
BACKGROUND We describe the clinical and electrophysiological characteristics of a novel macroreentrant form of left atrial flutter circuit. METHODS AND RESULTS A total of 11 patients were included in the study. The mean tachycardia cycle length was 278+/-41 ms. Nine of the 11 patients were treated with antiarrhythmic drugs at the time of the study for concomitant atrial fibrillation. With the use of entrainment pacing and either the CARTO Biosense mapping system (9 patients) or conventional mapping (2 patients), the flutter circuit was found to rotate around the left septum primum with a critical isthmus located between the pulmonary veins posteriorly and/or mitral annulus anteriorly and the septum primum. In 5 patients, radiofrequency ablation was performed from the septum primum to the right inferior pulmonary vein (group 1), and in 6 patients, a lesion was made from the septum primum to the mitral annulus (group 2). After a follow-up of 13+/-6 months, 2 patients in group 1 and all patients in group 2 remained in sinus rhythm without recurrence. CONCLUSIONS Slowing of electric conduction in the left atrial septum due to antiarrhythmic drugs and/or atrial myopathy seems to promote left septal atrial flutter. Radiofrequency ablation of this arrhythmia is usually effective and safe. A line of block between the septum primum and the mitral annulus proved to be effective for cure of tachycardia.
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Affiliation(s)
- Nassir F Marrouche
- Section of Pacing and Electrophysiology, Department of Cardiovascular Medicine, The Cleveland Clinic Foundation, Cleveland, Ohio, USA
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23
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Schneider MAE, Ndrepepa G, Weber S, Deisenhofer I, Schömig A, Schmitt C. Influence of High-Pass Filtering on Noncontact Mapping and Ablation of Atrial Tachycardias. Pacing and Clinical Electrophysiology 2004; 27:38-46. [PMID: 14720153 DOI: 10.1111/j.1540-8159.2004.00383.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The aim of the study was to define the impact of different high-pass filter settings (HPF) on the accuracy of mapping of ectopic atrial tachycardias (EAT) using a noncontact mapping (NCM) system. In 20 patients with 22 EAT a noncontact probe was deployed in the right (n = 19) or in the left atrium (n = 3). The device enables interpolation and analysis of unipolar electrograms. It provides information on focus localization and signal morphology. These parameters were compared in different HPF of 0.5 Hz, 2 Hz, 8 Hz, and 16 Hz. The NCM signal morphology was preserved at all HPF. An initial negative deflection recorded by NCM system showed a positive predictive value of 93% regarding the ablation success. The deviation (spatial disparity) between visualized focus origin and successful ablation site was 6.9 +/- 5.4 mm. Between two consecutive filter settings, the focus shift was more pronounced between 0.5 and 2 Hz (5.4 +/- 4.5 mm) compared to a setting between 8 and 16 Hz (2.9 +/- 2.9 mm; P < 0.05). Successful ablation was achieved in 15/18 right atrial tachycardias (83%) and in 2/3 left atrial arrhythmias. Different HPF influence NCM spatial analysis of EAT. However, a small variability in foci localization does not impact final ablation results.
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Affiliation(s)
- Michael A E Schneider
- Deutsches Herzzentrum and I. Med. Klinik, Technische Universität München, Munich, Germany.
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24
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Blomström-Lundqvist C, Scheinman MM, Aliot EM, Alpert JS, Calkins H, Camm AJ, Campbell WB, Haines DE, Kuck KH, Lerman BB, Miller DD, Shaeffer CW, Stevenson WG, Tomaselli GF, Antman EM, Smith SC, Alpert JS, Faxon DP, Fuster V, Gibbons RJ, Gregoratos G, Hiratzka LF, Hunt SA, Jacobs AK, Russell RO, Priori SG, Blanc JJ, Budaj A, Burgos EF, Cowie M, Deckers JW, Garcia MAA, Klein WW, Lekakis J, Lindahl B, Mazzotta G, Morais JCA, Oto A, Smiseth O, Trappe HJ. ACC/AHA/ESC Guidelines for the Management of Patients With Supraventricular Arrhythmias—Executive Summary. Circulation 2003; 108:1871-909. [PMID: 14557344 DOI: 10.1161/01.cir.0000091380.04100.84] [Citation(s) in RCA: 308] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Blomström-Lundqvist C, Scheinman MM, Aliot EM, Alpert JS, Calkins H, Camm AJ, Campbell WB, Haines DE, Kuck KH, Lerman BB, Miller DD, Shaeffer CW, Stevenson WG, Tomaselli GF, Antman EM, Smith SC, Alpert JS, Faxon DP, Fuster V, Gibbons RJ, Gregoratos G, Hiratzka LF, Hunt SA, Jacobs AK, Russell RO, Priori SG, Blanc JJ, Budaj A, Burgos EF, Cowie M, Deckers JW, Garcia MAA, Klein WW, Lekakis J, Lindahl B, Mazzotta G, Morais JCA, Oto A, Smiseth O, Trappe HJ. ACC/AHA/ESC guidelines for the management of patients with supraventricular arrhythmias∗∗This document does not cover atrial fibrillation; atrial fibrillation is covered in the ACC/AHA/ESC guidelines on the management of patients with atrial fibrillation found on the ACC, AHA, and ESC Web sites.—executive summary. J Am Coll Cardiol 2003; 42:1493-531. [PMID: 14563598 DOI: 10.1016/j.jacc.2003.08.013] [Citation(s) in RCA: 379] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
MESH Headings
- Anti-Arrhythmia Agents/therapeutic use
- Atrial Flutter/diagnosis
- Atrial Flutter/therapy
- Cardiac Pacing, Artificial
- Catheter Ablation
- Costs and Cost Analysis
- Diagnosis, Differential
- Electrocardiography
- Electrophysiologic Techniques, Cardiac
- Female
- Heart Conduction System/physiopathology
- Heart Defects, Congenital/complications
- Humans
- Male
- Pregnancy
- Pregnancy Complications, Cardiovascular/diagnosis
- Pregnancy Complications, Cardiovascular/therapy
- Quality of Life
- Tachycardia, Atrioventricular Nodal Reentry/diagnosis
- Tachycardia, Atrioventricular Nodal Reentry/therapy
- Tachycardia, Ectopic Atrial/diagnosis
- Tachycardia, Ectopic Atrial/therapy
- Tachycardia, Ectopic Junctional/diagnosis
- Tachycardia, Ectopic Junctional/therapy
- Tachycardia, Paroxysmal/diagnosis
- Tachycardia, Paroxysmal/therapy
- Tachycardia, Sinus/diagnosis
- Tachycardia, Sinus/therapy
- Tachycardia, Supraventricular/diagnosis
- Tachycardia, Supraventricular/epidemiology
- Tachycardia, Supraventricular/therapy
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26
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Abstract
We report a case of focal atrial tachycardia with appearance suggestive of atypical atrial flutter in a 57-year-old man. Based on ECG criteria, tachycardia was misclassified as atypical atrial flutter. The electrophysiological study using a noncontact mapping system revealed a focal activity within the left upper pulmonary vein ostium. This case highlights the limitations of standard electrocardiographic and electrophysiological classifications of regular atrial tachycardia. This report also shows the relevance of new mapping techniques in the successful mapping and ablation of these arrhythmias, even those arising within the left atrium.
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Affiliation(s)
- Sana Ouali
- Department of Cardiology, Rouen University Hospital, Rouen, France
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27
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Seidl K, Schwacke H, Rameken M, Drögemüller A, Beatty G, Senges J. Noncontact mapping of ectopic atrial tachycardias: different characteristics of isopotential maps and unipolar electrogram. Pacing Clin Electrophysiol 2003; 26:16-25. [PMID: 12685135 DOI: 10.1046/j.1460-9592.2003.00145.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The success rate for catheter ablation of ectopic atrial tachycardia (AT) has been limited by the inherent difficulty in localizing the site of origin within the complex three-dimensional structures of the atria. The objective of the study was to determine the usefulness of a noncontact mapping system for catheter ablation of AT. Radiofrequency ablation of 25 ATs was performed using a noncontact mapping system. Three different characteristics of isopotential maps and unipolar electrogram morphologies were observed: Group 1: Isopotential maps displayed a narrow, sharp ring of colors around a white, center spot. Unipolar electrograms revealed a Q-S morphology with a rapid dV/dt. Group 2: Isopotential maps displayed a broad ring of colors with little or no white spot in the center. Unipolar electrograms revealed a low amplitude, broad and smooth Q-S morphology in front of a second component with a rapid dV/dt. Group 3: Isopotential maps displayed a broad ring of colors. Unipolar electrogams revealed a low amplitude and fractionated waveform followed by endocardial breakthrough with a gradual dV/dt. Radiofrequency catheter ablation was successful in all ATs of groups 1 and 2, and failed in two of three ATs in group 3. The overall success rate was 92%. No severe complications were observed. Noncontact isopotential mapping is helpful to identify and characterize the origin of ectopic AT. Ablation success is associated with the characteristics of isopotential maps and unipolar electrogram morphologies. The overall success rate was 92%.
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Affiliation(s)
- Karlheinz Seidl
- Herzzentrum Ludwigshafen, Cardiology Bremserstr. 79, 67063 Ludwigshafen, Germany.
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28
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Abstract
There is an important association between heart failure and the development of atrial arrhythmias. Although most often associated with atrial fibrillation, there is some evidence to suggest an association between heart failure and other atrial arrhythmias and, in particular, atrial flutter and atrial tachycardia. The mechanisms by which these common atrial arrhythmias may arise in patients with heart failure are discussed.
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Affiliation(s)
- Vias Markides
- Imperial College School of Medicine, National Heart and Lung Institute, Waller Cardiac Department, St Mary's Hospital, London, UK
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29
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Abstract
Atrial fibrillation is the commonest clinical arrhythmia, is increasing in incidence and prevalence, and is associated with substantial morbidity and mortality. The arrhythmia may be paroxysmal (self-limiting), persistent (amenable to cardioversion), or permanent. Especially in its paroxysmal form, atrial fibrillation may be initiated by rapidly firing foci, generally located in the proximal pulmonary veins. Sustained atrial fibrillation is maintained by an atrial tissue substrate capable of accommodating many meandering wavelets. With continuing arrhythmia, the electrophysiological properties of the atria change and further facilitate continuing fibrillation. Treatment is aimed at prevention of thromboembolic complications, restoration and maintenance of sinus rhythm, and control of ventricular rate during atrial fibrillation. With greater understanding of the arrhythmia mechanisms, it is becoming possible to offer targeted curative treatments to more and more patients.
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30
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Abstract
Radiofrequency (RF) catheter ablation is the current treatment of choice for several cardiac arrhythmias. The conventional approach utilizing intracardiac electrograms during sinus rhythm and during tachycardia has inherent limitations, including limited two-dimensional fluoroscopic imaging and limited ability to evaluate several potential sites for ablation then go precisely to the most suitable site. Recently, a noncontact mapping system has been developed that can be used to perform single beat high resolution mapping of cardiac arrhythmias. In this report, we describe the advantage of utilizing the system in facilitating a successful outcome in 5 patients with different complex arrhythmias.
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Affiliation(s)
- J Sra
- Electrophysiology Laboratories of St Luke's Medical Center, University of Wisconsin Medical School-Milwaukee Clinical Campus, Milwaukee, Wisconsin 53215-3360, USA.
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31
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Kanagaratnam L, Tomassoni G, Schweikert R, Pavia S, Bash D, Beheiry S, Neibauer M, Saliba W, Chung M, Tchou P, Natale A. Ventricular tachycardias arising from the aortic sinus of valsalva: an under-recognized variant of left outflow tract ventricular tachycardia. J Am Coll Cardiol 2001; 37:1408-14. [PMID: 11300454 DOI: 10.1016/s0735-1097(01)01127-5] [Citation(s) in RCA: 199] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVES To describe a normal heart left bundle branch block, inferior axis ventricular tachycardia (VT), that could not be ablated from the right or left ventricular outflow tracts. BACKGROUND Whether these VTs are epicardial and can be identified by a specific electrocardiographic pattern is unclear. METHODS Twelve patients with normal heart left bundle branch block, inferior axis VT and previously failed ablation were included in this study. Together with mapping in the right and left ventricular outflow tracts, we obtained percutaneous epicardial mapping in the first five patients and performed aortic sinus of Valsalva mapping in all patients. RESULTS No adequate pace mapping was observed in the right and left ventricular outflow tracts. Earliest ventricular activation was noted in the epicardium and the aortic cusps. All patients were successfully ablated from the aortic sinuses of Valsalva (95% CI 0% to 18%). The electrocardiographic pattern associated with this VT was left bundle branch block, inferior axis and early precordial transition with Rs or R in V2 or V3. Ventricular tachycardia from the left sinus had rS pattern in lead I, and VT from the noncoronary sinus had a notched R wave in lead I. None of the patients had complications and all remained arrhythmia-free at a mean follow-up of 8 +/- 2.6 months. CONCLUSIONS Normal heart VT with left bundle branch block, inferior axis and early precordial transition can be ablated in the majority of patients from either the left or the noncoronary aortic sinus of Valsalva.
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Affiliation(s)
- L Kanagaratnam
- Department of Cardiology, Cleveland Clinic Foundation, Ohio 44195, USA
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32
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Abstract
Electromechanical endocardial mapping of the heart using a nonfluoroscopic catheter-based system is a new imaging modality that has been studied recently in the experimental setting as well as in patients. Besides its original application in the diagnosis and treatment of various cardiac arrhythmias, it has also been used as an investigational tool for assessing left ventricular function and viability. Finally, the mapping system may be a valuable platform for direct myocardial revascularization using either laser treatment or injection of pharmacologic agents.
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Affiliation(s)
- K C Koch
- Medizinische Klinik I, Department of Cardiology, University Hospital, RWTH, Aachen, Germany
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33
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Natale A, Pisanó E, Beheiry S, Richey M, Leonelli F, Fanelli R, Potenza M, Tomassoni G. Ablation of right and left atrial premature beats following cardioversion in patients with chronic atrial fibrillation refractory to antiarrhythmic drugs. Am J Cardiol 2000; 85:1372-5. [PMID: 10831959 DOI: 10.1016/s0002-9149(00)00774-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- A Natale
- The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA.
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