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Obregón-Rosas S, García-Almazán D, Flores-Pérez CS, Sotelo-Lozano MT, De Sandoval-Martínez E, Hernández-Alcaraz FC, López-Mota LA, Martínez-Estrada MA, Oroz-Domínguez AS, Montañez-Aguirre ÁA, Romero-García de Acevedo LE, Acosta-Castro I, Pérez-Rubio Flores R, Ortega-Cerda JJ. Comprehensive analysis of right fascicular and right bundle branch blocks: A multi-center study. J Electrocardiol 2024; 83:95-105. [PMID: 38387106 DOI: 10.1016/j.jelectrocard.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/05/2024] [Accepted: 02/12/2024] [Indexed: 02/24/2024]
Abstract
Electrocardiographic patterns of right bundle branch and fascicular blocks were comprehensively analyzed in a two-phase study. The research aimed to address the scarcity of literature and the absence of standardized diagnostic criteria for these conditions. It revealed a weak correlation between the cardiac axis and age and highlighted the high misdiagnosis rate of these blocks. Furthermore, it discussed the challenges in fulfilling existing diagnostic criteria. The study emphasizes the need for a more precise understanding of right ventricular conduction disorders and the importance of developing robust diagnostic criteria.
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Affiliation(s)
- Santiago Obregón-Rosas
- Mexican Faculty of Medicine, La Salle University, Mexico City, Mexico; Hospital Angeles Pedregal, Mexico City, Mexico.
| | | | | | | | | | | | | | | | - Aranza Sara Oroz-Domínguez
- Mexican Faculty of Medicine, La Salle University, Mexico City, Mexico; Hospital General Ajusco Medio, Mexico City, Mexico
| | | | | | - Itzayana Acosta-Castro
- Mexican Faculty of Medicine, La Salle University, Mexico City, Mexico; Hospital Angeles Mexico, Mexico City, Mexico
| | | | - José Juan Ortega-Cerda
- Professor Emeritus, Mexican Faculty of Medicine, La Salle University, Mexico City, Mexico; Director of Teaching and Research, Hospital Angeles Health System, Mexico City, Mexico; Hospital Angeles Pedregal, Mexico City, Mexico.
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Obregón-Rosas S, Montañez-Aguirre ÁA, Sotelo-Lozano MT, Ortega-Cerda JJ. Right fascicular blocks: A case series and a comprehensive electrocardiographic analysis. J Electrocardiol 2023; 81:159-162. [PMID: 37738713 DOI: 10.1016/j.jelectrocard.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/12/2023] [Accepted: 09/12/2023] [Indexed: 09/24/2023]
Abstract
The main trunk of the right bundle branch divides into an anterior, middle (lateral) and posterior fascicle. This article describes the right anterior and posterior fascicular block. They present a diagnostic challenge and are often overlooked during diagnostic processes. The studied patients were young adults whose electrocardiographic tracings were registered at the Mexican Faculty of Medicine of La Salle University. The presence of delayed R-peak time in aVR and V1, along with the described ventricular complex morphologies, and a right or left deviation of the cardiac axis exceeding +60°, may be suggestive of right fascicular blocks.
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Affiliation(s)
- Santiago Obregón-Rosas
- Mexican Faculty of Medicine of La Salle University, Las Fuentes 17, Tlalpan Centro I, Tlalpan, Mexico City, 01400, Mexico.
| | - Ángel Antonio Montañez-Aguirre
- Mexican Faculty of Medicine of La Salle University, Las Fuentes 17, Tlalpan Centro I, Tlalpan, Mexico City, 01400, Mexico.
| | - María Teresa Sotelo-Lozano
- Mexican Faculty of Medicine of La Salle University, Las Fuentes 17, Tlalpan Centro I, Tlalpan, Mexico City, 01400, Mexico.
| | - José Juan Ortega-Cerda
- La Salle University Mexican Faculty of Medicine, Professor Emeritus, Las Fuentes 17, Tlalpan Centro I, Tlalpan, 14000 Ciudad de México, Mexico; Hospital Angeles Health System; Director of teaching and research. Camino Sta. Teresa 1055-S, Héroes de Padierna, La Magdalena Contreras, 10700 Ciudad de México, Mexico; Hospital Angeles Pedregal, La Magdalena Contreras, Mexico City, Mexico.
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