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INFARTO DE
MIOCARDIO
Maria Alejandra Torres.
Edward A. Estupiñan.
Juliana Rojas.
INFARTO DE MIOCARDIO
• QUE ES UN INFARTO DE MIOCARDIO?

• CLASIFICACION DEL INFARTO DE MIOCARDIO
• INFARTO TRANSMURAL
• INFARTO SUBENDOCARDICO
• Factores de riesgo:
•
•
•
•
•
•
•
•
•

Edad avanzada.
Sexo.
Diabetes Mellitus.
IM previo.
Tabaquismo
Obesidad
Sedentarismo
HTA
estrés
EVENTOS DESENCADENADOS DURANTE EL
INFARTO DE MIOCARDIO
• 1.Cambio súbito de la morfología de una placa ateromatosa(
hemorragia, ulceración, erosion, ruptura.)
• 2.Las plaquetas experimentan adhesión, agregación, activación y
liberación de favorecedores potentes como los tromboxanos,
serotonina y factores plaquetarios.
• 3.Vasoespamos generado por la agregación de plaquetas y
liberación de mediadores.
• 4.Otros mediadores activan la coagulación y aumentan el tamaño
del trombo.
• 5.El trombo evoluciona así ocluyendo por completo la luz del vaso
coronario.
• Complicaciones:
•
•
•
•

Extensión del infarto
Expansión del infarto
Trombosis mural
Aneurisma ventricular

 Infartos transmurales.
Infartos subendocárdicos.
• Consecuencias:
• Después del IM agudo
• Pronostico al largo plazo

• Prevención del infarto de miocardio:
• Prevención primaria
• Prevención secundaria
Infarto de miocardio

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Infarto de miocardio

  • 1. INFARTO DE MIOCARDIO Maria Alejandra Torres. Edward A. Estupiñan. Juliana Rojas.
  • 2. INFARTO DE MIOCARDIO • QUE ES UN INFARTO DE MIOCARDIO? • CLASIFICACION DEL INFARTO DE MIOCARDIO • INFARTO TRANSMURAL • INFARTO SUBENDOCARDICO
  • 3. • Factores de riesgo: • • • • • • • • • Edad avanzada. Sexo. Diabetes Mellitus. IM previo. Tabaquismo Obesidad Sedentarismo HTA estrés
  • 4. EVENTOS DESENCADENADOS DURANTE EL INFARTO DE MIOCARDIO • 1.Cambio súbito de la morfología de una placa ateromatosa( hemorragia, ulceración, erosion, ruptura.) • 2.Las plaquetas experimentan adhesión, agregación, activación y liberación de favorecedores potentes como los tromboxanos, serotonina y factores plaquetarios. • 3.Vasoespamos generado por la agregación de plaquetas y liberación de mediadores. • 4.Otros mediadores activan la coagulación y aumentan el tamaño del trombo. • 5.El trombo evoluciona así ocluyendo por completo la luz del vaso coronario.
  • 5. • Complicaciones: • • • • Extensión del infarto Expansión del infarto Trombosis mural Aneurisma ventricular  Infartos transmurales. Infartos subendocárdicos.
  • 6. • Consecuencias: • Después del IM agudo • Pronostico al largo plazo • Prevención del infarto de miocardio: • Prevención primaria • Prevención secundaria