Abstract
111 Background: The prognosis of malignant peritoneal mesothelioma (MPM) has improved over the past decade in patients undergoing operative extirpation and intraperitoneal chemotherapy (IC). This study investigates the time from diagnosis to treatment intervention in premenopausal women and its impact on fertility and childbearing options. Methods: A retrospective analysis of 195 patients diagnosed with peritoneal mesothelioma between 1995 and 2015. Patients with unresectable or bicavity disease were not excluded. Kaplan-Meier curves and univariate cox proportional hazards model were used to estimate survival and significant treatment and prognosis factors. Results: The median survival time of all peritoneal mesothelioma patients (n = 195) was 3.21 years with (95% CI: 2.38- 5.53), with median follow-up of 3.44 years (SD = 3.4, minimum = 0.014 and maximum = 16.752) years from first operation. Patient set included 111 men (57%) and 84 women (43.1%) with female sex having favorable survival [HR: 0.442 95% CI: 0.296-0.659), p < 0.001] of 110.1 months with (95% CI: lower bond: 48.3). Of these women, their mean age at diagnosis was 52 years, (SD = 14.5, minimum = 14.7 – maximum = 79.9), with a mean time of 8.20 months from diagnosis to the start of treatment (SD = 18.6, minimum = 0 and maximum = 128.6 months). Overall survival of premenopausal women (N = 23) during follow-up was 72.2% (SE = 27.8%). Mean age at time of diagnosis was 34.7 years, (SD = 9.26, minimum = 14.7, maximum = 48.1), with a mean time of 10.6 months from diagnosis to treatment (SD = 17.9, minimum = 0.63, maximum = 86.7). Of the 195 patients who received a full treatment course, 66 (33.8% CI: 95%) were still alive at the median follow-up, of those alive 37 are female: 7 are premenopausal and have presented with gynecological symptoms, and 17 are premenopausal and have presented with abdominal discomfort. Conclusions: This data suggests that women preparing for treatment of MPM should not be precluded from exploring fertility options. With a mean time of 10.6 months from diagnosis to treatment, it is possible for premenopausal women to take advantage of fertility preservation before starting treatment.
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