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VARICES ESOFÁGICAS
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KarolineBarreda
April 25, 2019
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VARICES ESOFÁGICAS
SEMINARIO 6
KarolineBarreda
April 25, 2019
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Transcript
VARICES ESOFÁGICAS • Venas anormalmente dilatas • Dificultad hepática por
enfermedad • Riesgo: rotura • + tamaño, +PA, +Delg→ +Hemorragia
FACTORES DE DESARROLLO • Pr. Portal (Cirrocis hepática) •
Colaterales portosistémicas (VEGF |PDGF) • Anatómicos (u. gastroesofágica |crec. de varices)
ANATOMIA
FISIOPATOLOGIA DE HEMORRAGIA ESOFAGICA • Aumento de Pr. intra-variceal •
GPP >12mmHg • Tension excesiva de la pared (p.rotura) • Ley de Laplace • Tamaño y pared varicosa →más grandes →puntos rojos
SINTOMAS DIAGNOSTICO • Hemorragia • síntomas • Perdida de
sangre →mareo, sudor., perd. de conciencia • Endoscopia digestiva
TRATAMIENTO SIN HERMORRAGIA CON HEMORRAGIA QUIRURGICO • -bloqueantes • →(Presion,
riesg. hemo. muerte) • Tx endoscópico • →(banding) • Cuidados intensivos • Reposicion de la volemia • (2U-4U-> insuf renal/resp) • Proxilaxis de compl. 2°s • →Antibioticos • →Aspiracion del contenido • Tratamiento hemostático • →vasopresina • →somatostatina • Ligadora endoscópica • + efic / -riesgo • Escleoterapia endoscópica • Inyeccion dentro/junto a variz→trombosis • Taponamiento esofágico • →Sengstaken-blakemore • →Linton –Nachlas • DPPI