Electro‐vectorcardiographic demonstration of rate‐independent transient left posterior fascicular block
Left posterior fascicular block (LPFB) is a rare intraventricular conduction disorder of rare occurrence, especially as an isolated entity. Its transient form is even rarer and maybe rate‐independent or rate‐dependent intermittent LPFB (phase 3 block, tachycardia‐dependent and phase 4 block or brady...
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| Published in: | Annals of noninvasive electrocardiology Vol. 24; no. 5; pp. e12600 - n/a |
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| Main Authors: | , , , , , |
| Format: | Journal Article |
| Language: | English |
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United States
John Wiley & Sons, Inc
01-09-2019
John Wiley and Sons Inc |
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| Abstract | Left posterior fascicular block (LPFB) is a rare intraventricular conduction disorder of rare occurrence, especially as an isolated entity. Its transient form is even rarer and maybe rate‐independent or rate‐dependent intermittent LPFB (phase 3 block, tachycardia‐dependent and phase 4 block or bradycardia‐dependent). We present a case of a young adult male whose baseline ECG/VCG showed the typical LPFB pattern. A treadmill stress test revealed rate‐independent intermittent LPFB with random occurrence. Imaging exams ruled out structural heart disease. To our knowledge, this is the first case in the literature of a rate‐independent intermittent LPFB with no underlying structural heart disease. |
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| AbstractList | Left posterior fascicular block (LPFB) is a rare intraventricular conduction disorder of rare occurrence, especially as an isolated entity. Its transient form is even rarer and maybe rate‐independent or rate‐dependent intermittent LPFB (phase 3 block, tachycardia‐dependent and phase 4 block or bradycardia‐dependent). We present a case of a young adult male whose baseline ECG/VCG showed the typical LPFB pattern. A treadmill stress test revealed rate‐independent intermittent LPFB with random occurrence. Imaging exams ruled out structural heart disease. To our knowledge, this is the first case in the literature of a rate‐independent intermittent LPFB with no underlying structural heart disease. |
| Author | Nikus, Kjell Daminello‐Raimundo, Rodrigo Barbosa‐Barros, Raimundo Sá Leitão Ramos Borges, Maria Tereza Pérez‐Riera, Andrés Ricardo de Abreu, Luiz Carlos |
| AuthorAffiliation | 1 Laboratorio de Pesquisa e Escrita Científica da Faculdade de Medicina do ABC Santo André SP Brazil 3 Heart Center, Faculty of Medicine and Life Sciences Tampere University Hospital University of Tampere Tampere Finland 2 Coronary Center Messejana Hospital Dr. Carlos Alberto Studart Gomes Fortaleza Ceará Brazil |
| AuthorAffiliation_xml | – name: 1 Laboratorio de Pesquisa e Escrita Científica da Faculdade de Medicina do ABC Santo André SP Brazil – name: 2 Coronary Center Messejana Hospital Dr. Carlos Alberto Studart Gomes Fortaleza Ceará Brazil – name: 3 Heart Center, Faculty of Medicine and Life Sciences Tampere University Hospital University of Tampere Tampere Finland |
| Author_xml | – sequence: 1 givenname: Andrés Ricardo orcidid: 0000-0003-4948-538X surname: Pérez‐Riera fullname: Pérez‐Riera, Andrés Ricardo email: riera@uol.com.br organization: Laboratorio de Pesquisa e Escrita Científica da Faculdade de Medicina do ABC – sequence: 2 givenname: Raimundo surname: Barbosa‐Barros fullname: Barbosa‐Barros, Raimundo organization: Messejana Hospital Dr. Carlos Alberto Studart Gomes – sequence: 3 givenname: Maria Tereza surname: Sá Leitão Ramos Borges fullname: Sá Leitão Ramos Borges, Maria Tereza organization: Messejana Hospital Dr. Carlos Alberto Studart Gomes – sequence: 4 givenname: Rodrigo surname: Daminello‐Raimundo fullname: Daminello‐Raimundo, Rodrigo organization: Laboratorio de Pesquisa e Escrita Científica da Faculdade de Medicina do ABC – sequence: 5 givenname: Luiz Carlos surname: de Abreu fullname: de Abreu, Luiz Carlos organization: Laboratorio de Pesquisa e Escrita Científica da Faculdade de Medicina do ABC – sequence: 6 givenname: Kjell surname: Nikus fullname: Nikus, Kjell organization: University of Tampere |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/30255966$$D View this record in MEDLINE/PubMed |
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| Keywords | rate-independent intermittent left posterior fascicular block transient left posterior fascicular block isolated left posterior fascicular block |
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| References | 2009 1981; 46 1983; 84 1999; 32 1973; 31 1968; 38 1972; 46 1976; 17 1972; 34 1979; 44 e_1_2_5_9_1 e_1_2_5_8_1 e_1_2_5_11_1 e_1_2_5_10_1 e_1_2_5_6_1 e_1_2_5_5_1 e_1_2_5_4_1 e_1_2_5_3_1 e_1_2_5_2_1 Issa Z. (e_1_2_5_7_1) 2009 |
| References_xml | – volume: 46 start-page: 931 issue: 5 year: 1972 end-page: 938 article-title: Transient left posterior hemiblock. Report of four cases induced by exercise test publication-title: Circulation – year: 2009 – volume: 44 start-page: 1083 issue: 6 year: 1979 end-page: 1088 article-title: Histopathologic correlates of left posterior fascicular block publication-title: American Journal of Cardiology – volume: 46 start-page: 687 issue: 6 year: 1981 end-page: 690 article-title: Tachycardia‐dependent left posterior hemiblock publication-title: British Heart Journal – volume: 32 start-page: 57 issue: 1 year: 1999 end-page: 64 article-title: Transient left posterior hemiblock during myocardial ischemia‐eliciting exercise treadmill testing: A report of a case and a critical analysis of the literature publication-title: Journal of Electrocardiology – volume: 17 start-page: 123 issue: 1 year: 1976 end-page: 132 article-title: A case of acute anterolateral infarction complicated with "left posterior hemiblock" publication-title: Japanese Heart Journal – volume: 84 start-page: 638 issue: 5 year: 1983 end-page: 640 article-title: Transient left posterior hemiblock during Prinzmetal's angina culminating in acute myocardial infarction publication-title: Chest – volume: 38 start-page: 5 issue: 1 year: 1968 end-page: 28 article-title: An appraisal of "supernormal" A‐V conduction publication-title: Circulation – volume: 34 start-page: 807 issue: 8 year: 1972 end-page: 814 article-title: Histopathological examination of concept of left hemiblock publication-title: British Heart Journal – volume: 31 start-page: 362 issue: 3 year: 1973 end-page: 371 article-title: Alternative mechanisms of apparent supernormal atrioventricular conduction publication-title: American Journal of Cardiology – ident: e_1_2_5_4_1 doi: 10.1136/hrt.34.8.807 – ident: e_1_2_5_11_1 doi: 10.1378/chest.84.5.638 – ident: e_1_2_5_10_1 doi: 10.1536/ihj.17.123 – ident: e_1_2_5_8_1 doi: 10.1016/S0022-0736(99)90022-5 – ident: e_1_2_5_9_1 doi: 10.1161/01.CIR.38.1.5 – ident: e_1_2_5_5_1 doi: 10.1016/0002-9149(79)90173-5 – ident: e_1_2_5_6_1 doi: 10.1016/0002-9149(73)90269-5 – ident: e_1_2_5_3_1 doi: 10.1136/hrt.46.6.687 – volume-title: Clinical arrhythmology and electrophysiology: A companion to Braunwald's heart disease year: 2009 ident: e_1_2_5_7_1 contributor: fullname: Issa Z. – ident: e_1_2_5_2_1 doi: 10.1161/01.CIR.46.5.931 |
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| Snippet | Left posterior fascicular block (LPFB) is a rare intraventricular conduction disorder of rare occurrence, especially as an isolated entity. Its transient form... |
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| SubjectTerms | Adult Bradycardia Cardiovascular disease Cardiovascular diseases Case Report Case Reports Conduction Coronary artery disease Echocardiography EKG Electrocardiography Exercise Test Heart Block - diagnosis Heart diseases Humans isolated left posterior fascicular block Magnetic Resonance Imaging Male rate‐independent intermittent left posterior fascicular block Tachycardia transient left posterior fascicular block Treadmills Vectorcardiography - methods Young adults |
| Title | Electro‐vectorcardiographic demonstration of rate‐independent transient left posterior fascicular block |
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