Fatal gestational trophoblastic neoplasia: An analysis of treatment failures at the Brewer Trophoblastic Disease Center from 1979-2012 compared to 1962-1978.

Objective: To determine clinical factors that contributed to death from gestational trophoblastic neoplasia (GTN) at the Brewer Trophoblastic Disease Center from 1979-2012 compared to 1962-1978.

Methods: Nineteen women who died of GTN from 1979-2012 were retrospectively identified and compared to 45 women previously reported on who died of GTN from 1962-1978. Clinical factors analyzed included demographics, pretreatment human chorionic gonadotropin (hCG) level, duration of disease, antecedent pregnancy, number and sites of metastases, FIGO stage and score, treatment, and cause of death.

Results: Death from GTN occurred in 19 (4%) of 483 patients treated from 1979-2012 compared to 45 (11%) of 396 patients treated from 1962-1978 (P<0.001). Pretreatment hCG level >100,000 mIU/mL, time from pregnancy event to treatment >4 months, nonmolar antecedent pregnancy and use of surgery to control metastatic disease were similar between the two treatment eras. Patients in the recent series were more likely to have presented with FIGO IV disease or brain metastasis, been initially treated with multiagent chemotherapy, and received treatment before referral to our center compared to the earlier series. The most common causes of death from 1979-2012 and 1962-1978 were hemorrhage from one or more metastatic sites (11% vs. 42%), respiratory failure (37% vs. 31%), and multiorgan failure due to widespread chemoresistant disease (42% vs. 8%), respectively.

Conclusions: Our overall survival rate in patients with gestational trophoblastic neoplasia improved from 89% in 1962-1978 to 96% in 1979-2012. More patients treated between 1979-2012 died from widespread chemoresistant disease rather than hemorrhagic complications.