Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/76747
DC FieldValueLanguage
dc.contributor.authorCabrera, José Angelen_US
dc.contributor.authorSánchez-Quintana, Damiánen_US
dc.contributor.authorHo, Siew Yenen_US
dc.contributor.authorMedina, Alfonsoen_US
dc.contributor.authorAnderson, Robert H.en_US
dc.date.accessioned2020-12-16T15:36:17Z-
dc.date.available2020-12-16T15:36:17Z-
dc.date.issued1998en_US
dc.identifier.issn1045-3873en_US
dc.identifier.otherWoS-
dc.identifier.urihttp://hdl.handle.net/10553/76747-
dc.description.abstractIntroduction: Electrophysiologists recognize a so-called isthmus" in the right atrium through which passes the reentrant circuit of common atrial nutter. Ablative lesions placed in this narrow channel have proved effective in breaking the circuit, To the best of our knowledge, however, no study has been performed to establish the arrangement and orientation of the atrial myocardial fibers in this crucial area.Methods and Results: We examined 28 normal heart specimens, identifying a quadrilateral area composed of three morphologic sectors between the inferior caval vein and the tricuspid valve confluent superiorly with the triangle of Koch, Within this quadrilateral, there are constant recesses, or sinuses, inferior and lateral to the orifice of the coronary sinus. The inferior isthmus measured an average of 31 +/- 4 mm (range 19 to 40), Gross examination identified marked differences in the atrial wall forming the quadrilateral, A smooth anterior component forming the vestibule of the tricuspid valve was found in all the hearts, but variations in the remaining sectors were seen in ten specimens, The usually membranous posterior sector was noticeably muscular in three specimens, while the middle, trabecular sector was more membranous in five specimens. We demonstrated the orientation of the subendocardial atrial fibers by dissection in 14 specimens, revealing a relatively constant overall pattern in eight specimens and variations in fiber orientation in the remaining specimens.Conclusion: There are considerable anatomic variations in the atrial wall that comprises the so-called isthmus, The presence of recesses and membranous areas in some hearts and the variations in arrangement of the subendocardial fibers are relevant in improving understanding of conduction in this area.en_US
dc.languageengen_US
dc.relation.ispartofJournal of Cardiovascular Electrophysiologyen_US
dc.sourceJournal of Cardiovascular Electrophysiology [ISSN 1045-3873], v. 9 (11), p. 1186-1195, (Noviembre 1998)en_US
dc.subject321305 Cirugía de garganta, nariz y oídosen_US
dc.subject.otherAnisotropyen_US
dc.subject.otherArrhythmiaen_US
dc.subject.otherAtrial Flutteren_US
dc.subject.otherCatheter Ablationen_US
dc.titleThe architecture of the atrial musculature between the orifice of the inferior caval vein and the tricuspid valve: The anatomy of the isthmusen_US
dc.typeinfo:eu-repo/semantics/Articleen_US
dc.typeArticleen_US
dc.identifier.doi10.1111/j.1540-8167.1998.tb00091.xen_US
dc.identifier.scopus0031795163-
dc.identifier.isi000076877000008-
dc.contributor.authorscopusid7202882405-
dc.contributor.authorscopusid6701705050-
dc.contributor.authorscopusid7403717121-
dc.contributor.authorscopusid7202723590-
dc.contributor.authorscopusid9533191200-
dc.identifier.eissn1540-8167-
dc.description.lastpage1195en_US
dc.identifier.issue11-
dc.description.firstpage1186en_US
dc.relation.volume9en_US
dc.investigacionCiencias de la Saluden_US
dc.type2Artículoen_US
dc.contributor.daisngid120551-
dc.contributor.daisngid30183834-
dc.contributor.daisngid28148482-
dc.contributor.daisngid5831803-
dc.contributor.daisngid4258798-
dc.description.numberofpages10en_US
dc.utils.revisionen_US
dc.contributor.wosstandardWOS:Cabrera, JA-
dc.contributor.wosstandardWOS:Sanchez-Quintana, D-
dc.contributor.wosstandardWOS:Ho, SY-
dc.contributor.wosstandardWOS:Medina, A-
dc.contributor.wosstandardWOS:Anderson, RH-
dc.date.coverdateEnero 1998en_US
dc.identifier.ulpgcen_US
dc.description.jcr2,076
dc.description.jcrqQ1
item.fulltextSin texto completo-
item.grantfulltextnone-
crisitem.author.deptGroup for the Research on Renewable Energy Systems-
crisitem.author.deptDepartamento de Ingeniería Civil-
crisitem.author.orcid0000-0001-8478-3011-
crisitem.author.parentorgDepartamento de Ingeniería Mecánica-
crisitem.author.fullNameLozano Medina, Alexis-
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