

antiagregantes
Presentation
•
Biology
•
11th Grade
•
Hard
Carolain Bello
Used 1+ times
FREE Resource
9 Slides • 0 Questions
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Fármacos Antiagregantes
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Generalidades
Trombo: rico en plaquetas
Embolos: ricos en fibrinas
Los antiagregantes sólo se utilizan para prevenir la formación de coágulos, si ya está el coagulo se tratará con fibrinolíticos.
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Inhibidores enzimáticos
Inhibidor de la cicloxigenasa
El ácido acetilsalicílico (AAS) inhibe de forma irreversible la ciclooxigenasa que interviene en la síntesis de precursores de tromboxanos.
La dosis para conseguir efecto antiagregante oscila entre 75 y 325 mg/día.
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Profármaco que inhibe la agregación plaquetaria inhibiendo la unión del ADP a su receptor plaquetario y la activación subsiguiente del complejo GPIIb-IIIa mediada por ADP. 75mg/día
Clopidrogel
Inhibe la agregación plaquetaria inhibiendo la unión ADP-dependiente del fibrinógeno a la membrana plaquetaria. 250mg c/24 horas
Ticlopidina P2Y2
Inhibidores de receptores ADP
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Aumentando los niveles de AMPc e inhiben la agregación plaquetaria.
200mg y 25mg de ASA c/12horas.
Dipiridamol
Inhibidores de la fosfodiesterasa
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Antagonistas de GPIIB-IIIa
Tirofiban y Abciximab: Bloquean la unión del fibrinógeno y el factor de won willebrand.
Fármacos Antiagregantes
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