arteriosclerosis 2013
DESCRIPTION
pathogenesis and morphology of artheriosclerosis (in spanish)TRANSCRIPT
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Hallan momias con arterioesclerosis
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Aterosclerosis aorta abdominal
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Arterioesclerosis
• Ateromatosis
• Degeneración microquística de la túnica media
• Calcificación de la túnica media
• Arteriolosclerosis
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• Ateromatosis
• Degeneración microquística de la túnica media
• Calcificación de la túnica media
• Arteriolosclerosis
• arterias elásticas y grandes arterias
• Arterias musculares
• Arteriolas
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Teorias patogénicas
• Teoría Inflamatoria: respuesta a la injuria vascular
• Teoría monoclonal (Benditt)
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Factores de riesgo para
la ateroesclerosis
Hiperlipidemia (hipercolesterolemia)+++
Hipertensión
Consumo de cigarrillos
Diabetes
Proteína C reactiva
MODIFICABLES
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Factores de riesgo para
la ateroesclerosis
Vejez
Sexo masculino
Antecedentes familiares
Anomalías genéticas
INMODIFICABLES
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LIPOPROTEINAS
HDL LDLAlfa lipoproteínas Beta lipoproteínas
50% lípidos50% apoproteínas
80%lípidos20%apoproteínas
Pre B lipoproteínas: VLDL 90%lípidos10% apoproteínas
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Pared arterial
Endothelium
Internalelastic lamina
Externalelastic lamina
Intima
Media
Adventitia
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Estructura normal de la pared de una arteria elástica
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Iniciación del proceso aterosclerótico
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Inflamación
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Formación de células espumosas
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Lesión y Trombosis
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Formación de la Placa Fibrosa
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Por qué se pensó en una enfermedad neoplásica.
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Por qué se pensó en una enfermedad inflamatoria
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COMPLICACIONES DE PLACA
• HEMORRAGIA
• ULCERACION
• CALCIFICACION
• TROMBOSIS
• ANEURISMAS
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From AtheromaTo Thrombus (4)
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CONSECUENCIAS DE LA ATC
OCLUSION GRADUAL: ISQUEMIA CEREBRAL
ISQUEMIA MIOCARDIO
ISQUEMIA RENAL
OCLUSION BRUSCA: TROMBOSIS /EMBOLIA=
INFARTO(MIOCARDIO, CEREBRAL,
RENAL)
HEMORRAGIA: RUPTURA DE ANEURISMA
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Angioplastia
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Stent
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Stent
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Degeración microquística de la túnica media
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http://www.nejm.org/doi/full/10.1056/NEJMra052723
https://www.youtube.com/watch?v=mCYAOeEe6-w
https://www.youtube.com/watch?v=pDm02a9GxMw
Videos de ateroesclerosis