Reproduction outcomes and prognostic significance of pregnancy after nasopharyngeal carcinoma treatment

Many female patients with nasopharyngeal carcinoma (NPC) desire to reproduce after treatment. To evaluate the outcomes of subsequent pregnancy after NPC and explore the prognostic effects of pregnancy in women. Female patients with locoregional NPC were included, and their pregnancy status, newborn information, and obstetric information were collected. Pregnant patients after therapy were matched to non-pregnant patients for survival analysis and overall survival (OS), disease-free survival (DFS), distant metastasis-free survival (DMFS), and locoregional relapse-free survival (LRFS) were assessed. Of 895 patients, 79 conceived after NPC treatment. Of these, 52 women successfully delivered, and the rest had abortions. No abnormalities were recorded in any of the newborns and the caesarean section rate was 30.1%. The median birth weight of newborns was 3.11 kg. Patients who delivered successfully were younger than those who had an abortion. Among the pregnancies, four cases of spontaneous abortion and two cases of ectopic pregnancy were recorded. No significant differences in OS, DFS, LRFS, or DMFS were observed between the 79 subsequently pregnant patients and 315 matched non-pregnant patients. Pregnancy after NPC treatment was not associated with adverse clinical outcomes. Abortion may not be a remedial choice post-treatment in patients with NPC.