Sx de Bartter Flashcards

1
Q

Cambios electrolíticos

A

Hipokalemia
Hipocloremia
Hipercalciuria

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2
Q

Mutación Bartter tipo 1

A

NKCC2

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3
Q

Mutación Barrer V

A

CaSR

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4
Q

Mecanismo de sordera neurosensorial en Bartter IV y V

A

El Cl no puede salir de la célula de la coclea para causar electroneutralidad y permitir despolarización por K

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5
Q

Patognomonico de Gitelman

A

Hipomagnesemia

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6
Q

Causa de falta de crecimiento

A

Formación de PGE2 a causa de vasoconstricción por ANG II

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7
Q

Hay alcalosis o acidosis?

A

Alcalosis

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8
Q

¿Qué causa la hipocloremia?

A

Retención de HCO3 por el intercambiado HCO3- Cl (canal AE1)

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9
Q

Edad de aparición de Gitelmann

A

Adolescencia

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10
Q

Tipo de Bartter más severo

A

Tipo IV (infantil+ sordera neurosensorial)

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11
Q

Fenotipo

A

Frente prominente, ojos largos y orejas protruyentes

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12
Q

Hallazgos en EKG

A

Ondas T baja y aparición de ondas U

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13
Q

En que parte de la nefrona esta la afectación en Bartter

A

Rama gruesa ascendente del asa de Henle

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14
Q

En que parte de la nefrona esta la afectación en Gitelman

A

Túbulo contorneado distal

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15
Q

¿A que se debe la hipocitraturia?

A

A la necesidad de un buffer intracelular

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16
Q

Causa de policitemia

A

Hemoconcentración