Testicular tissue percent oxygen saturation (%StO2) measured by trans-scrotal near infrared spectroscopy in children undergoing orchidopexy.

Rationale for the study Surgery for the treatment of undescended testes may lead to some adverse long-term effects upon the structures of the inguinal canal, including damage to the blood vessels, which might eventually result in reduced testicular function or in the worse scenario to testicular atrophy. Study population Infants and children undergoing orchidopexy for undescended testes. Clinical outcomes Near infrared spectroscopy %StO2 readings obtained from testes before surgery, in the immediate post-operative period, at 1-month and 6-month follow-up will be correlated with the size of the testicle using Prader orchidometer.