Enfermedad Hemorragica Del Recien Nacido (EHRN) Flashcards

1
Q

Etiologia

A

Deficit de factores de coagulación dependiente de vitamina k

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2
Q

Incidencia

A

4.4 a 7.2 por 100’000

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3
Q

Forma clasica factores de riesgo

A

Baja transferencia placentaria de vitamina k
Lactancia materna exclusiva sin profilaxis
Falta de flora intestinal
Ingesta oral disminuida

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4
Q

F riesgo de forma temprana

A

Medicamentos
Warfarina, anticonvulsivantes, rifampicina, isoniazids.
Leche materna exclusiva
Premarurez, desnuticion no tener profilaxis vit k

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5
Q

F riesgo forma tardia

A

Factores de coagulación (sx de mala absorción, ictericia colestasica, fibrosis quistica, deficit alfa 1 antitripsina)

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6
Q

Clinica forma temprana

A

O a 24 hrs de vida, presenta sangrado grave, en snc, cefalohematoma, o intrabronquial

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7
Q

Forma clasica clinica

A

Presenta de 2 a 7 dias , sitios son sangrado tubo digestivo, cordón umbilical, sitios de venopuncion , nasal o cutaneo.

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8
Q

Forma tardia clinica

A

Presenta a las 2- 6 meses
Clinica variable
Sangrado snc 60%
Vomitos
Fontanela abombada
Palidez
Rechazo al alimento
Convulsiones

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9
Q

Laboratorios

A

Tp prolongado
Ttp normal o ligeramente prolongado
Fbrinogeno y plaquetas normales

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10
Q

Diagnostico

A

INR igual o mayor a 4y uno de lo siguientes ( Plaqueta normal, fibrinogeno normal,regreso a la normalidad de Tp tras administración de vitamina k

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11
Q

Tratamiento

A

Si la hemorragia es leve vitamina k i.v. Dosis 1-2 mg

Si hemorragia es severa plasma fresco congelado (10/15 ml/ kg)

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12
Q

Prevencion

A

Vitamima k 1 mg a todos los rn

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13
Q

Si hay un INR > 4

A

Solicitar ( pedir PIVKA proteina inducida por vit k) aunque no se requiere para confirmar diagnostico

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