The main regional difference in CHMCF presentation is related to a higher rate of potentially life-threatening conditions in South America. Sixty percent of the expectantly managed CHMCF delivered a viable infant, and the overall rate of GTN in this study was 46%. Elective termination of pregnancy did not influence the risk for GTN; however the need for termination due to complications and higher hCG levels were associated with development of GTN in CHMCF.
This is one of the largest studies to comprehensively catalogue toxicities associated with 8-day MTX/FA and one-day MTX infusion. Although treatment-related adverse events were more frequent with 8-day MTX/FA, these were all self-limited and resolved with no long-term sequelae. Given this and its higher effectiveness, 8-day MTX/FA remains the treatment of choice at NETDC for patients with low-risk postmolar GTN.
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