Subdirector de la Carrera de Especialista en Endocrinología Pediátrica, Universidad de Buenos Aires. La criptorquidia es la anomalía genital más común en el recién nacido varón .. alternativas: la cirugía a cielo abierto o la laparoscopia. Acta Pediátrica de México Volumen 27, Núm. 6, noviembre-diciembre, Criptorquidia. Nueva Se analiza qué pacientes requieren cirugía y cuáles Palabras clave: Criptorquidia, testículos, tratamiento hormonal, tratamiento quirúrgico. Revista Mexicana de Cirugía Pediátrica 15 years of age, with criptorquidia inguinal, patients by means of orquidopexia paraescrotal, in a pediatric Hospital.
|Published (Last):||12 April 2008|
|PDF File Size:||10.77 Mb|
|ePub File Size:||7.86 Mb|
|Price:||Free* [*Free Regsitration Required]|
criptorquidia cirugia pediatrica pdf
This was not observed in the group of late orchidopexy. The hypothalamus-pituitary-testis axis in boys during the first six months of life: Several papers have stressed the possibility that the hCG treatment could induce inflammatory and vascular changes in the testis, mainly based in experimental works in animals 41, 43, 44 and a few ones in humans 45as well as apoptosis of the germinal epithelium Around the 13th week the testis is anchored to the internal inguinal orifice by the gubernaculum testis.
Permanece elevada hasta los 15 meses de vida post natal. Swiss Med Wkly ; Immediate surgical complications, such as cirubia and infections are rare.
Nordic consensus on treatment of undescended testes. The gubernaculum is enlarged by increasing its water contents widening the inguinal canal reaching a maximum around the 7th months of fetal criptorqukdia. These observations suggest that certain environmental factors with estrogen activity might act as endocrine disruptors to inhibit INSL3 and induce lack of testicular descent. Moreover, because of some evidences of adverse effects, a growing number of professionals do not recommend this treatment Testis and epidydimis, involved in the peritoneum, slide into the inguinal canal guided by the gubernaculum.
The gonad is caudally bound to the mesonephros which later differentiates into the gubernaculum reaching the internal inguinal orifice. Human models of cryptorchidism in peduatrica there is a deficiency in androgen production are: More than articles have been published so far.
This is the transitory post natal elevation of gonadotropins with consequent stimulation of Leydig cells and increases in serum testosterone. It has also been described that risk, even though lower, is also increased in the contralateral testis In the group of early orchidopexy, testis showed compensatory growth during follow up, up to 4 years of age. Even though no treatment is necessary 4these patients need to be followed to confirm the scrotal location These cells support a number of germ cells, and their number define future spermatogenic capacity.
Fertility alter bilateral criptorchidism.
Orchidopexy Paraescrotal in Children with Criptorquidia Inguinal
On the other hand, from studies in animals, it has been proposed that the effect of testosterone is indirect, mediated by calcitonin gene related peptide CGRP production in the genitofemoral nerve 5.
A metaanalysis including four studies, revealed that the risk of developing a tumor was significantly increased when orchidopexy was carried out after years of age. Surgical treatment of unilaterally undescended testes: Reduction in the number of orchidopexies for cryptorchidism after recognition of acquired undescended testis and implementation of expectative policy. Probably, in these cases, the origin is multifactorial.
Horm Res Orchidopexy of the high undescended testis testis by division of the espermatic vessels: J Clin Endocrinol Metab ; The aim of this review is to update the physiology and etiopathogenesis of cryptorchidism and to discuss pros and cons of present therapeutical options.
The elevation of the kidney during the th week also determines a partial descent of the testis. Leydig cells proliferate during minipuberty with a maximum between months of age, but they regress thereafter. A diminished postnatal surge of Ad spermatogonia in cryptorchid infants is additional evidence for hypogonadotropic hypogonadism.
Finalmente, el descenso inguino-escrotal se produce en la semana Leydig cell function after Cryptorchidism: On the other hand, Ong C et al.