Surveillance for Stage I Nonseminoma Testicular Cancer: Outcomes and Long-Term Follow-Up in a Population-Based Cohort

Gedske Daugaard, Maria Gry Gundgaard, Mette Saksø Mortensen, Mads Agerbæk, Niels Vilstrup Holm, Mikael Rørth, Hans von der Maase, Ib Jarle Christensen, Jakob Lauritsen

121 Citationer (Scopus)

Abstract

PURPOSE: To describe treatment results in a large cohort with stage I nonseminoma germ cell cancer (NSGCC) treated in a surveillance program.

PATIENTS AND METHODS: From January 1, 1984, to December 31, 2007, 1,226 patients with stage I NSGCC, including high-risk patients with vascular invasion, were observed in a surveillance program.

RESULTS: The relapse rate after orchiectomy alone was 30.6% at 5 years. Presence of vascular invasion together with embryonal carcinoma and rete testis invasion in the testicular primary identified a group with a relapse risk of 50%. Without risk factors, the relapse risk was 12%. Eighty percent of relapses were diagnosed within the first year after orchiectomy. The median time to relapse was 5 months (range, 1 to 308 months). Early relapses were mainly detected by increase in tumor markers, and late relapses were detected by computed tomography scans. Relapses after 5 years were seen in 0.5% of the whole cohort or in 1.6% of relapsing patients. The majority of relapses (94.4%) belonged to the good prognostic group according to the International Germ Cell Cancer Collaborative Group classification. The disease-specific survival at 15 years was 99.1%.

CONCLUSION: A surveillance policy for patients with stage I NSGCC is a safe approach associated with an excellent cure rate and an overall low treatment burden despite a high relapse rate in a small group of patients. We recommend surveillance for patients with stage I NSGCC with immediate systemic treatment at relapse. Clearly defined risk factors for relapse are presented if an option of risk-adapted treatment is preferred.

OriginalsprogEngelsk
TidsskriftJournal of Clinical Oncology
Vol/bind32
Udgave nummer34
Sider (fra-til)3817-3823
Antal sider7
ISSN0732-183X
DOI
StatusUdgivet - 1 dec. 2014

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