TL;DR: Treatment for undescended testis before puberty decreases the risk of testicular cancer, and the effect of age at orchiopexy on the risk in the cohort was similar in comparisons within the cohort.
Abstract: We identified men who underwent orchiopexy for undescended testis in Sweden between 1964 and 1999. Cohort subjects were identified in the Swedish Hospital Discharge Register and followed for the occurrence of testicular cancer through the Swedish Cancer Registry. Vital statistics and data on migration status were taken from the Register of Population and Population Changes for the years 1965 through 2000. We estimated the relative risk of testicular cancer using Poisson regression of standardized incidence ratios, comparing the risk in the cohort with that in the general population. We also analyzed the data by means of Cox regression, using internal comparison groups. Results The cohort consisted of 16,983 men who were surgically treated for undescended testis and followed for a total of 209,984 person-years. We identified 56 cases of testicular cancer during follow-up. The relative risk of testicular cancer among those who underwent orchiopexy before reaching 13 years of age was 2.23 (95% confidence interval [CI], 1.58 to 3.06), as compared with the Swedish general population; for those treated at 13 years of age or older, the relative risk was 5.40 (95% CI, 3.20 to 8.53). The effect of age at orchiopexy on the risk of testicular cancer was similar in comparisons within the cohort. Conclusions Treatment for undescended testis before puberty decreases the risk of testicular cancer.
TL;DR: The aim is to reach consensus among specialists from the Nordic countries on the present state‐of‐the‐art in treatment of undescended testicles.
Abstract: Aim: To reach consensus among specialists from the Nordic countries on the present state-of-the-art in treatment of undescended testicles.
Methods: A group of specialists in testicular physiology, paediatric surgery/urology, endocrinology, andrology, pathology and anaesthesiology from all the Nordic countries met for two days. Before the meeting, reviews of the literature had been prepared by the participants.
Recommendations: The group came to the following unanimous conclusions: (1) In general, hormonal treatment is not recommended, considering the poor immediate results and the possible long term adverse effects on spermatogenesis. Thus, surgery is to be preferred. (2) Orchiopexy should be done between 6 and 12 months of age, or upon diagnosis, if that occurs later. (3) Orchiopexy before age one year should only be done at centres with both paediatric surgeons/urologists and paediatric anaesthesiologists. (4) If a testis is found to be undescended at any age after 6 months, the patient should be referred for surgery—to paediatric rather than general surgeons/urologists if the boy is less than one year old or if he has bilateral or non-palpable testes, or if he has got relapse of cryptorchidism.
TL;DR: Orchiectomy may be considered in healthy patients with cryptorchidism who are between ages 12 and 50 years, and observation should be recommended in postpubertal males at significant anesthetic risk and all males older than 50 years.
TL;DR: In this paper, the authors comprehensively reviewed the literature addressing the epidemiology of congenital and acquired cryptorchidism and orchiopexy, and found that the risk of ascent may be as high as 50% in cases where 1 testis is significantly retractile.
Abstract: Purpose: The frequency, significance and possible etiology of testicular ascent (acquired cryptorchidism) are characterized in light of the known incidence and natural history of congenital cryptorchidism, and data provided by longitudinal and epidemiological studies of ascended testes and orchiopexy rates. Materials and Methods: We comprehensively reviewed the literature addressing the epidemiology of congenital and acquired cryptorchidism and orchiopexy. Results: The incidence of congenital cryptorchidism in full-term males at birth (2% to 4%) and at age 1 year (approximately 1%) has not increased in the last few decades. The risk of ascent may be as high as 50% in cases where 1 testis is significantly retractile. Ascended testes are typically unilateral (77%), identified in mid childhood and located distal to the inguinal canal (77%). Ascended and significantly retractile testes may be prone to the same germ cell maldevelopment seen in congenital cryptorchidism. Cumulative orchiopexy rates in defined populations are 2% to 4%, and mean age at orchiopexy remains higher than expected (greater than 4 years), despite a long held standard of care that includes recommendation for surgery by age 2. These data suggest that cryptorchidism may be acquired in a significant subset of cases. Conclusions: With close monitoring of young boys spontaneous ascent of testes from a scrotal to a suprascrotal position may be observed with time, due to either true or apparent testicular ascent, with possible adverse effects on germ cell development and fertility potential. Patients with significant testicular retractility appear to be at highest risk for acquired cryptorchidism, and should be followed closely at yearly intervals until puberty.