QOLP-21. LONG-TERM FOLLOW-UP OF GERM CELL TUMOR SURVIVORS

Abstract

Abstract Germ cell tumor (GCT) is a juvenile tumor, completely cured by adequate treatments, including radiation therapy and chemotherapy. However, survivors require continuous medical treatment mostly due to hypopituitarism, and several issues could be observed during follow-up. In the present report, we analyzed medical records of long-term GCT survivors, retrospectively, and make the issues clear. Of ninety-three, 82 GCT patients with several medical and social information are included in the analysis. Median follow-up time is 11.95 years, and 47 patients followed more than ten years. Fifteen deaths are recorded, and 8 are tumor-progression, and 7 are treatment-related long-term events, including four subsequent gliomas, one cerebral vascular disease, one renal cancer, and one sudden death. Seven survivors developed subsequent malignancy, and all lived more than 19 years and received more than 50Gy of irradiation. The overall survival rate is gradually decreasing more than ten years follow-up, such as 10-, 15- and 25-years survival are 92.3, 87.7 and 73.3%, respectively. Long-term follow-up also clarified several social issues. Forty-two of 50 adult survivors had a job after the treatments, but only thirty-four (70.8%) are still working. Of note, only nine (18.8% of adults) survivors got married. All four women require any hormone replacement, while only one of 4 men requires the replacement. Long-term follow-up of GCT survivors revealed subsequent malignancy and social problems. Recent attempt to decrease radiation dose and to give adequate hormone replacement might overcome these problems. Clinicians still observed GCT patients closely.