placenta previa Flashcards

1
Q

definición placenta previa

A

placentga limita o recubre OCI

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2
Q

qué es placenta de inserción baja

A

cuando se encuentra a <2 cm del OCI

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3
Q

factores riesgo placenta previa

A

gestación múltiple, EM avanzada, antecedente cesarea, ant placenta previa, ant cx intrauterina (curetaje), tabaquismo (multiplica por 2)

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4
Q

Fisiopatología placenta previa

A

mala inserciòn de la implantación, secundario a una cicatriz uterina previa o alteraciones en la morfología uterina

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5
Q

Fisiopatología sangrado en PP

A

cambios del cuello uterino y segmento, producen cizallamiento en el lugar de la placenta, realizando un desprendimiento parcial y sangrado consecuente

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6
Q

complicaciones PP

A

RCIU, acretismo placentario, RPM, parto prematuro, muerte fetal

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7
Q

clìnica

A

sangrado transvaginal

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8
Q

diagnóstico

A

a partir 20 sdg visualizar inserciòn, y a las 32 semanas confirmar diagnóstico

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9
Q

tratamiento en asintomáticas

A

usg de control, programar cesarea a las 36 sdg, evitar TV y act sexual

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10
Q

tx mujeres con STV

A

tocolíticos, pruba kleihour bethke, SMgO en emb 24-32 sdg, EMP 24-34 sdg, ORH neg anti-D a las 28.

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11
Q

hemorragia que no cede a tx tocolitico

A

cesarea

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12
Q

hospitalizacion

A

primer sangrado 72 hrs, segundo sangrado 7 dias. tercer sangrado hasta la resolucion del embarazo

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