LAUSR

144Background: Testicular cancer occurs in young men and is usually cured leaving survivors with many life years at risk from long term treatment effects. Risks increase with treatment intensity and include cardiovascular disease associated with the metabolic syndrome (Haugnes 2012, de Haas 2013). Testosterone deficiency (TD) is associated with metabolic syndrome & reduced QoL (Huddart 2005). Serum testosterone levels (STLs) are also influenced by underlying testicular dysgenesis & the effects of ageing (Skakkebaek 2001, Oldenburg 2016). We added annual screening STL to our surveillance protocols in 2013 & reviewed the value of this practice. Methods: Men followed in our Testicular Surveillance Clinic from 01 Jan 2006 to 31 Dec 2015 were identified electronically & data extracted retrospectively. Men eligible for this analysis had clinical stage I (CS I) testicular cancer treated with unilateral orchiectomy alone. Outcomes of interest were STLs, Endocrinology referral (Endo) & treatment with androgen repl...