Objective: To study the clinical characteristics, outcome, prognostic factors and survival of patients with testicular germ cell tumors (TGCTs).
Methods: 107 TGCT patients received chemotherapy after orchiectomy. The median age of the patients was 32 years. 30.8% (33/107) patients had seminomas with 14 (42.4%) stage I lesions. Seventy-four patients had non-seminomatous germ cell tumors (NSGCTT) with 21 (28.4%) stage I lesions. The response rate was analyzed with chi(2) test. The survival rate was calculated with Kaplan-Meier method and log-rank test. Therapy including chemotherapy, radiation and necessary salvage operation were performed after orchiectomy.
Results: Clinical stage and pathological type were the main prognostic factors. The 3-, 5- and 10-year survival rates were 75.8%, 73.5%, 73.5% for all patients, 100%, 96.8%, 96.8% for seminoma and 63.5%, 61.7%, 61.7% for NSGCTTs, respectively. Sixty-four patients were evaluable for response. Seventeen (26.6%) patients achieved CR by chemotherapy alone and an additional 8 patients (12.5%) achieved CR by chemotherapy plus salvage operation or radiation. The 5-year survival rates were 91.7% and 26.2% for patients who achieved CR or not.
Conclusion: The long-term outcome for stage I germ cell tumors is excellent. The treatment outcome and survival in patients with metastatic TGCTs can be greatly improved by adopting multi-modality therapy with combined chemotherapy as the chief means.