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Intestinal atresia is any congenital malformation of the structure of the intestine that causes bowel obstruction. The malformation can be a narrowing ( stenosis ), absence or malrotation of a portion of the intestine.
The majority of cases are small intestinal atresia, while colonic atresias are uncommon. [14] There have been two main etiologies proposed for intestinal atresia: the first is a lack of re-vacuolization of the solid cord stage of intestinal development, and the second is a late intrauterine mesenteric vascular accident.
Familial multiple intestinal atresia (FMIA) or familial intestinal polyatresia syndrome (FIPA) is an inherited disorder where atresia occurs at multiple locations throughout the small and large intestines. It presents at birth and the prognosis is very poor with almost all those diagnosed with this condition dying with one month.
Intestinal malrotation is a congenital anomaly of rotation of the midgut. It occurs during the first trimester as the fetal gut undergoes a complex series of growth and development. It occurs during the first trimester as the fetal gut undergoes a complex series of growth and development.
The intestinal atresia is of the "apple-peel" type, an uncommon type in which the remaining portion of the intestine is found twisted around its main artery, and this usually affects the jejunum. [2] [3] Often, much of the bowel is missing in this form of atresia. [9] There can sometimes also be intestinal malrotation. [2] [3] [8] [11]
Other causes can include acid reflux, asthma, allergies, or other chronic medical conditions, adds Richard Watkins, M.D., an infectious disease physician and professor of medicine at the Northeast ...
The high aldosterone levels causes the kidneys to avidly retain Na + (to correct the intravascular volume depletion), and excrete increased amounts of K + into the urine (resulting in a low blood level of potassium). [citation needed] The body's compensatory response to the metabolic alkalosis is hypoventilation resulting in an elevated ...
Unanswered questions remain about a fatal shooting at a Madison, Wisconsin, private school as new details emerge about the shooter’s family life and possible ties to a California man who ...