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Estenosis pilórica - Overview

Nombres alternativos

Estenosis pilórica hipertrófica congénita; Obstrucción del orificio gástrico; Estenosis pilórica hipertrófica

Definición:

Es un estrechamiento del píloro, la abertura que va del estómago al intestino delgado.

Causas:

Normalmente, el alimento pasa de manera fácil desde el estómago hacia la primera parte del intestino delgado a través de una válvula llamada píloro. En la estenosis pilórica, los músculos del píloro se engruesan. Esto impide que el estómago se vacíe en el intestino delgado.

Aunque los factores genéticos pueden jugar un papel, la causa del engrosamiento se desconoce. Los hijos de padres que tuvieron estenosis pilórica son más propensos a padecer esta afección.

La estenosis pilórica ocurre con mayor frecuencia en los niños que en las niñas y es rara en niños mayores de 6 meses. La afección por lo general se diagnostica cuando el niño tiene 6 meses.

  • Reviewed last on: 8/2/2011
  • Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

Referencias

Hunter AK, Liacouras CA. Pyloric stenosis and congenital anomalies of the stomach. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 19th Ed. Philadelphia, Pa: Saunders Elsevier; 2007: chap 321.

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