Survival after Total vs. Partial Removal of Low Grade Gliomas

We have collected a series of 102 operated oligodendrogliomas [2]. Our results confirm that total tumor vs. partial tumor or biopsy removal offered a statistically significant extended survival postoperatively. This survival advantage was lost when we measured survival after first symptoms of the disease: For statistical analysis life table analysis and logrank test have been performed. The results for total vs. partial tumor removal were 0,3049 after first symptoms and 0,0250 postoperatively. The second but not the first result is statistically significant.