Hypospadias surgery: Difference between revisions
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==Surgery== | ==Surgery== | ||
In developed countries, most hypospadias are surgically repaired in infancy. Surgical repair of first and second degree hypospadias is nearly always successful in one procedure, usually performed in the first year of life by a [[pediatric urologist]] or a [[plastic surgeon]]. | In developed countries, most hypospadias are surgically repaired in infancy. Surgical repair of first and second degree hypospadias is nearly always successful in one procedure, usually performed in the first year of life by a [[pediatric urologist]] or a [[plastic surgeon]]. | ||
Revision as of 05:46, 22 May 2013
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Steven C. Campbell, M.D., Ph.D.
Surgery
In developed countries, most hypospadias are surgically repaired in infancy. Surgical repair of first and second degree hypospadias is nearly always successful in one procedure, usually performed in the first year of life by a pediatric urologist or a plastic surgeon.
When the hypospadias is third degree, or there are associated birth defects such as chordee or cryptorchidism, the best management can be a more complicated decision. A karyotype and endocrine evaluation should be performed to detect intersex conditions or hormone deficiencies. If the penis issmall, testosterone or human chorionic gonadotropin (hCG) injections may be given to enlarge it prior to surgery.
Surgical repair of severe hypospadias may require multiple procedures and mucosal grafting. Preputial skin is often used for grafting and circumcision should be avoided prior to repair. In a minority of patients with severe hypospadias surgery produces unsatisfactory results, such as scarring, curvature, or formation of urethral fistulas, diverticula, or strictures. A fistula is an unwanted opening through the skin along the course of the urethra, and can result in urinary leakage or an abnormal stream. A diverticulum is an "outpocketing" of the lining of the urethra which interferes with urinary flow and may result in post-urination leakage. A stricture is a narrowing of the urethra severe enough to obstruct flow. Reduced complication rates even for third degree repair (e.g., fistula rates below 5%) have been reported in recent years from centers with the most experience, and surgical repair is now performed for the vast majority of infants with hypospadias.
Because of the difficulties and lower success rates of surgical repair of the most severe degrees of under virilization, some of these genetically male but severely undervirilized infants have been assigned and raised as girls, with feminizing surgical reconstruction. Opinion has shifted against this approach in the last decade because adult sexual function as a female has often been poor, and development of a male gender identity despite female sex assignment and rearing, has occurred in some XY children after reassignment for a more severe type of genital birth defect, cloacal exstrophy.