[The possible role of the timing of the first oncological treatment on the survival rate of cancer diseases. A literature overview].

The aim of this study was to survey the effects of the waiting time for the first oncology treatment in cancer diseases. By the analysis of 67 retrospective studies and reviews the numerical effects of treatment initiation time on survival were assessed. The "time factor" has a leading role on cancer types with aggressive biological behaviour, like breast cancer in younger age, testicular cancers, or head and neck tumours. However, a few days and reasonable delay to the first oncology intervention has no negative impact in numerous cancer diseases. The course of the primary check-up could be modified by several medical and psychosocial factors, and many times the treatment of the most advanced cancers are privileged causing an inverse survival effect. The effectiveness of the cancer therapies is determined by the optimal treatment decision, however, further research is necessary for the determination of the exact role of the "time factor" in oncology. Orv Hetil. 2018; 159(14): 535-546.