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dc.contributor.advisorSalazar, Gabriel 
dc.creatorJaimes Castellanos, Claudia Patricia 
dc.date.accessioned2013-01-16T05:50:22Z
dc.date.available2013-01-16T05:50:22Z
dc.date.created2012-12-03
dc.date.issued2012
dc.identifier.urihttp://repository.urosario.edu.co/handle/10336/4094
dc.descriptionOBJETIVOS: Describir y comparar los cambios dinámicos de la geometría del anillo mitral durante todo el ciclo cardiaco en pacientes con insuficiencia mitral isquémica y pacientes con válvula mitral normal. MATERIALES Y MÉTODOS: Los estudios ecocardiográficos analizados fueron 37, 23 con insuficiencia mitral isquémica y 14 con válvula mitral normal. La reconstrucción del anillo se realizó en la estación de trabajo Xcelera (Philips Medial Systems) mediante la herramienta de análisis mitral (MVQ), en 5 momentos del ciclo cardiaco: Comienzo de Sístole, Mitad de Sístole, Final de Sístole, Mitad de Diástole y Final de Diástole. RESULTADOS: El anillo del grupo control, fue más dinámico, con sus menores dimensiones al final de la diástole, presentando incremento progresivo durante la sístole. Los cambios en el perímetro y el área, fueron significativos entre el comienzo y mitad de la sístole (p:0.087 y p: 0.055). En el grupo con insuficiencia mitral isquémica, el anillo fue más estático. Todas las dimensiones en este grupo, fueron mayores en los cinco momentos del ciclo cardiaco. (p < 0.1). El anillo también fue más plano, con un índice morfológico anular menor al del grupo control (p:0.087). DISCUSIÓN Y CONCLUSIONES: En pacientes sin insuficiencia mitral, el anillo es una estructura dinámica. Durante la sístole, las menores dimensiones se produjeron al comienzo de este periodo y la conformación en silla de montar se mantuvo, protegiendo contra la insuficiencia mitral. El anillo del grupo con insuficiencia mitral fue más estático y plano, perdiendo los mecanismos protectores.
dc.description.abstractOBJECTIVES: To describe and compare the dynamic changes in the geometry of the mitral ring in patients with ischemic mitral regurgitation and normal mitral valve. MATERIALS AND METHODS: 37 studies were analyzed, 23 with ischemic mitral regurgitation and 14 without mitral regurgitation. The mitral ring reconstruction was performed in Xcelera workstation (Philips Medial Systems, Andover, Massachusetts) with a mitral analysis tool (MVQ), in 5 different times of the cardiac cycle: Early systole, middle systole, late systole, middle diastolic and late diastole. RESULTS: The mitral ring of the control group, was more dynamic, with its smaller size in the late diastole, with a progressive increase during systole. Changes in the perimeter and area were significant between the early and middle of systole (p: 0. 087 and p: 0. 055, respectively). In the group with ischemic mitral regurgitation, the ring was more static. All dimensions were larger in this group, with a significant difference in every dimension (p &lt; 0. 1). The annular morphological index was lower is this group, than in the control group. DISCUSSION AND CONCLUSIONS: The mitral ring is a dynamic structure in patients without mitral regurgitation. During systole, the smaller dimensions occurred at the beginning of this period and the saddle shape remained during the whole cardiac cycle, protecting against mitral regurgitation. The mitral ring was static and flat in patients with ischemic mitral regurgitation, losing the protective mechanisms described in the control group.
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dc.language.isospa
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/co/
dc.sourcereponame:Repositorio Institucional EdocUR
dc.sourceinstname:Universidad del Rosario
dc.subjectAnillo Mitral
dc.subjectDinámica Mitral
dc.subjectInsuficiencia Mitral
dc.subjectCardiopatía isquémica
dc.subject.lembCardiología::Investigaciones
dc.subject.lembEcocardiografía::Investigaciones
dc.subject.lembInsuficiencia cardiaca
dc.subject.lembInsuficiencia de la válvula mitral
dc.subject.lembIsquemia miocárdica
dc.titleDinámica del anillo mitral en pacientes con insuficiencia mitral isquemica
dc.typebachelorThesis
dc.publisherUniversidad del Rosario
dc.creator.degreeEspecialista en Ecocardiografía
dc.publisher.departmentFacultad de medicina
dc.title.alternativeDinámica del anillo mitral en pacientes con insuficiencia mitral isquemica. Nuevas proyecciones de la ecocardiografía transesofágica tridimensional en tiempo real.
dc.subject.keywordMitral ring
dc.subject.keywordMitral annular dynamic
dc.subject.keywordMitral regurgitation
dc.subject.keywordIschemic heart disease
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.type.spaTrabajo de grado
dc.rights.accesoAbierto (Texto completo)
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersion
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