Volvulos Del Colon Flashcards

1
Q

Definicion de volvulos del colon?

A

Torsion del asa dilatada sobre su meso, con obstrucción parcial o total del transito intestinal, pudiendo existir o no compromiso intestinal.

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2
Q

Localizacion de volvulos de colon?

A
  • Sigmoides 75%
  • Ciego 20%
  • Tranverso 5%
  • Angulo esplénico <1%
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3
Q

Etiologia volvula del colon?

A
  • C. Derecho: malformacion congenita
  • C. Izquierdo: asa anormalmente movil sumado a enf. que dilatan y alargan el sigma
  • Transverso: exageracion de una situacion normal
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4
Q

Etiopatogenia congenita?

A
  • Asa sigmoidea larga y falta de fijacion peritoneal
  • Enfermedad de Hisprung
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5
Q

Etiopatogenia Adquirida?

A
  • Mesenteritis retractil
  • Megacolon Chagasico
  • Factores metabolicos, neurologicos
  • Factores desencadenantes; habitos alimentarios
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6
Q

Fisiopatologia?

A
  • Interrupción venosa
  • Interrupción arterial
  • Trasudado a la luz del colon
  • Edema de la pared
  • Necrosis
  • Perforación
  • Shock septico -> muerte
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7
Q

Tipos de torsión?

A

-180 graus genera obstruccion luminal
- 360 graus genera compromiso vascular

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8
Q

Clinica?

A
  • distension abdominal
  • timpanismo percutorio
  • dolor abdominal
  • constipacion
  • vomitos
  • diarrea
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9
Q

Cuadro clinico?

A
  • Volvulo agudo ( sin antecedentes previo,menos frecuente)
  • volvulo sub- agudo( el mas frecuente)
  • Volvulo cronico ( poco frecuente)
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10
Q

Classificacion de Kantor?

A

Grd 1 - asintomatico
Grd 2 - obstruccion parcial reduce espontaneamente con maniobras endoscopicas
Grd 3 - obstruccion completa isquemia reversible
Grd 4 - obstruccion completa isquemia irreversible

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11
Q

OtroS signos?

A
  • Signo de bayer: diatencion enorme
  • Signo de Von Wahl: mov peristalticos intestinales a lá exploración
  • Signo de la resonancia metalica de kiwul: timpanismo a la percusion del asa valvulada
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12
Q

Diagnostico?

A

Rx abdomen: 30 a 40% de los volvulos no se diagnostican
Tac abdominal: 100% de sensibilidad

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