Clinical Study Of The Influence Of One Testis Missing On The Other Testis

Objective: (1)To study the influence of one testis missing on the other testis.To evaluate the relation of CTA and causes of one testis missing,ages of operation,times after surgery.(2) To study the influence of one testis missing on sex hormonal and secondary sex character.Methods:We reviewed the patients in hospital with monorchism and orchiectomy for testis torsion or testis tumor for 15 years. 51 subjects were involved by random,including 22 cases of monorchism ,18 cases of testis torsion and 11 cases of testis tumor.The average age was 8.9 years and the average follow-up was 6.0years. In addition,150 normal controls were also include.They were divided into < 10-year group,10-12-year group and 12-16-year group according to ages. All subjects were examined clinically by myself,including the remain testicular volume and the development of secondary sex character,sex hormons were detected voluntarily by radioimmnuoassay. The datas were analysed with statistical method.Results: (1)In different ages range, testicular volume was increasing by ages. Within the same age range, testicular size was significantly larger in testis missing than that in controls(P<0.05).It confirms CTA waspresent on the other testis. (2) testicular volume had no significant differences at the same age range in different causes of one testis missing(P>0.05).It didn't suggest there is relation of CTA and diseases.(3)The relation of CTA and times after surgery. They were divided into < 6-month group,6 mon-2 year group and >2year group.we amounted the numbers of obviously CTA (testis volume beyond 30% ).There was no statistical significance between groups(P>0.05),but obviously CTA was more in the early stage of testis missing than others, decreasing following times.(4) The relation of CTA and ages of operation.They were divided into <10-year group,10-12-year group and 12-16-year group according to ages. Obviously CTA was more in 10-12-year group and 12-16-year group than <10-year group (P<0.05).It suggested CTA was relative to the development stage of testis.(5) Within different age range,there was no obvious difference between experiment group and control group(P>0.05),except LH within < 10-year group. It suggested CTA wasn't influenced on sex hormone.(6)We obversed there were no obvious difference in development of pubic hair, axillary hairs, laryngeal prominence, voice change or body type between experiment group and control group(P>0.05).Conclusion: The other testis could be compensatory adaptation once one testis missing.CTA wasn't relative to causes of one testis missing,but obviously in the early stage of operation, and decreasing following times. CTA was also relative to the development stage of testis.(2)CTA didn't influened on sex hormone and the development of body and secondary sex character in adolescents.