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Soares Correa F, Lokhandwala Y, Cruz Filho F, Sánchez‐Quintana D, Mori S, Anderson RH, Wellens HJJ, Back Sternick E. Part II—Clinical presentation, electrophysiologic characteristics, and when and how to ablate atriofascicular pathways and long and short decrementally conducting accessory pathways. J Cardiovasc Electrophysiol 2019; 30:3079-3096. [DOI: 10.1111/jce.14203] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/07/2019] [Accepted: 09/28/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Frederico Soares Correa
- Post Graduation DepartmentFaculdade de Ciências Médicas Belo Horizonte Brazil
- Arrhythmia and Electrophysiology DepartmentBiocor Institute Nova Lima Brazil
| | | | - Fernando Cruz Filho
- Centro de Tecnologia CelularInstituto Nacional de Cardiologia Rio de Janeiro Brazil
| | | | - Shumpei Mori
- Division of Cardiovascular Medicine, Department of Internal MedicineKobe University Graduate School of Medicine Kobe Japan
| | - Robert H. Anderson
- Institute of Genetic MedicineNewcastle University Newcastle upon Tyne United Kingdom
| | | | - Eduardo Back Sternick
- Post Graduation DepartmentFaculdade de Ciências Médicas Belo Horizonte Brazil
- Arrhythmia and Electrophysiology DepartmentBiocor Institute Nova Lima Brazil
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Chen CC, Hu YF, Chen SA. A single Mahaim accessory pathway with bidirectional delta waves. HeartRhythm Case Rep 2019; 5:379-381. [PMID: 31341781 PMCID: PMC6630185 DOI: 10.1016/j.hrcr.2019.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Chun-Chao Chen
- Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Yu-Feng Hu
- Heart Rhythm Center, Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Address reprint requests and correspondence: Dr Yu-Feng Hu, Heart Rhythm Center, Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, No 201, Sec 2, Shih-Pai Rd, Taipei, Taiwan.
| | - Shih-Ann Chen
- Heart Rhythm Center, Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
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Lokhandwala Y, Vyas A. A Wide Complex Tachycardia in a Structurally Normal Heart: What is the Mechanism? Where to Ablate? J Innov Card Rhythm Manag 2019; 10:3504-3507. [PMID: 32494405 PMCID: PMC7252864 DOI: 10.19102/icrm.2019.100101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 04/26/2018] [Indexed: 11/26/2022] Open
Abstract
We present a case of wide complex tachycardia (left bundle branch block, superior axis) in a 30-year-old female with a structurally normal heart and no baseline preexcitation on electrocardiogram. Tachycardia initiation and atrial pacing confirmed the existence and participation of a right-sided atriofascicular decrementally conducting Mahaim pathway. Tachycardia mechanism validation by atrial pacing maneuvers was documented as well as was a response to adenosine and preexcited Mahaim atrial fibrillation. The usual ablation site did not record a Mahaim potential; hence, ablation was performed at a site other than the usual one.
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Affiliation(s)
- Yash Lokhandwala
- Cardiology Department, Holy Family Hospital and Research Center, Mumbai, India
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Katritsis DG, Boriani G, Cosio FG, Hindricks G, Jaïs P, Josephson ME, Keegan R, Kim YH, Knight BP, Kuck KH, Lane DA, Lip GYH, Malmborg H, Oral H, Pappone C, Themistoclakis S, Wood KA, Blomström-Lundqvist C, Gorenek B, Dagres N, Dan GA, Vos MA, Kudaiberdieva G, Crijns H, Roberts-Thomson K, Lin YJ, Vanegas D, Caorsi WR, Cronin E, Rickard J. European Heart Rhythm Association (EHRA) consensus document on the management of supraventricular arrhythmias, endorsed by Heart Rhythm Society (HRS), Asia-Pacific Heart Rhythm Society (APHRS), and Sociedad Latinoamericana de Estimulación Cardiaca y Electrofisiologia (SOLAECE). Europace 2018; 19:465-511. [PMID: 27856540 DOI: 10.1093/europace/euw301] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Affiliation(s)
- Demosthenes G Katritsis
- Athens Euroclinic, Athens, Greece; and Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Giuseppe Boriani
- Cardiology Department, Modena University Hospital, University of Modena and Reggio Emilia, Modena, Italy
| | | | | | - Pierre Jaïs
- University of Bordeaux, CHU Bordeaux, LIRYC, France
| | | | - Roberto Keegan
- Hospital Privado del Sur y Hospital Español, Bahia Blanca, Argentina
| | - Young-Hoon Kim
- Korea University Medical Center, Seoul, Republic of Korea
| | | | | | - Deirdre A Lane
- Asklepios Hospital St Georg, Hamburg, Germany.,University of Birmingham Institute of Cardiovascular Science, City Hospital, Birmingham, UK; and Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Gregory Y H Lip
- University of Birmingham Institute of Cardiovascular Science, City Hospital, Birmingham, UK; and Aalborg Thrombosis Research Unit, Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Helena Malmborg
- Department of Cardiology and Medical Science, Uppsala University, Uppsala, Sweden
| | - Hakan Oral
- University of Michigan, Ann Arbor, MI, USA
| | - Carlo Pappone
- IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | | | | | | | - Bulent Gorenek
- Cardiology Department, Eskisehir Osmangazi University, Eskisehir, Turkey
| | | | - Gheorge-Andrei Dan
- Colentina University Hospital, 'Carol Davila' University of Medicine, Bucharest, Romania
| | - Marc A Vos
- Department of Medical Physiology, Division Heart and Lungs, Umc Utrecht, The Netherlands
| | | | - Harry Crijns
- Mastricht University Medical Centre, Cardiology & CARIM, The Netherlands
| | | | | | - Diego Vanegas
- Hospital Militar Central - Unidad de Electrofisiologìa - FUNDARRITMIA, Bogotà, Colombia
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Abstract
The term Mahaim conduction is conventionally used to describe decrementally conducting connections between the right atrium or the AV node and the right ventricle in or close to the right bundle branch. Although such pathways are rare, their unique properties make their diagnosis and treatment cumbersome. In this article we review the published evidence, and discuss the electrocardiographic and electrophysiological characteristics as well as the anatomy and origin of these fibres.
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Affiliation(s)
| | - Hein J Wellens
- Cardiovascular Research Institute, Maastricht, the Netherlands
| | - Mark E Josephson
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
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