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f. Change the dressing as prescribed, and
                                                                record the type and amount of
                                                                drainage.
                                                             g. Perform wound irrigations if
                                                                prescribed.
                                                             h. Maintain nasogastric tube suction and
                                                                patency of the tube if present.
                                                             i. Administer antibiotics and analgesics as
                                                                prescribed.
                    X. Hirschsprung’s Disease (Fig. 33-4)
                                A. Description
                                             1. Hirschsprung’s disease is a congenital anomaly also
                                                known as congenital aganglionosis or aganglionic
                                                megacolon.
                                             2. The disease occurs as the result of an absence of
                                                ganglion cells in the rectum and other areas of the
                                                affected intestine.
                                             3. Mechanical obstruction results because of inadequate
                                                motility in an intestinal segment.
                                             4. The disease may be a familial congenital defect or may
                                                be associated with other anomalies, such as Down’s
                                                syndrome and genitourinary abnormalities.
                                             5. A rectal biopsy specimen shows histological evidence
                                                of the absence of ganglionic cells.

                                             6.        The most serious complication is enterocolitis;

                                                signs include fever, severe prostration,
                                                gastrointestinal bleeding, and explosive watery
                                                diarrhea.
                                             7. Treatment for mild or moderate disease is based on
                                                relieving the chronic constipation with stool softeners
                                                and rectal irrigations; however, many children require
                                                surgery.
                                             8. Treatment for moderate to severe disease involves a 2-
                                                step surgical procedure.
                                                             a. Initially, in the neonatal period, a
                                                                temporary colostomy is created to
                                                                relieve obstruction and allow the
                                                                normally innervated, dilated bowel to
                                                                return to its normal size.
                                                             b. When the bowel returns to its normal
                                                                size, a complete surgical repair is
                                                                performed via a pull-through
                                                                procedure to excise portions of the
                                                                bowel; at this time, the colostomy is
                                                                closed.






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