Cytoreductive surgery with intraperitoneal hyperthermic chemotherapy for malignant peritoneal mesothelioma: mitomycin versus cisplatin.
BACKGROUND: Malignant peritoneal mesothelioma (MPM) is a rare, rapidly fatal disease. Because traditional treatments offer little benefit, there has been increasing interest in cytoreductive surgery (CS) with intraperitoneal hyperthermic chemotherapy (IPHC). The most efficacious chemotherapy regimen is not established. Herein we report clinical outcomes of MPM patients treated with CS and IPHC and contrast results using two chemoperfusates: mitomycin and cisplatin. METHODS: Thirty-four patients were treated for MPM. Following CS, 19 patients underwent IPHC with mitomycin and 15 received cisplatin. Overall survival, disease-free survival, and progression-free survival were compared between the two groups. RESULTS: Overall survival was 56 and 17% at 3 and 5 years, with median survival of 40.8 months. Those perfused with cisplatin were more likely to be alive at 1, 2, and 3 years (P < 0.05, 0.05, and 0.04, respectively). Median survival for mitomycin and cisplatin was 10.8 and 40.8 months, respectively (P = 0.22). Median disease-free survival and progression-free survival were 10.3 and 9.1 months, respectively. There was a trend toward improved disease-free and progression-free survival using cisplatin. CONCLUSIONS: CS with IPHC is a promising modality for patients with MPM, and clinical outcomes appear to be improved using cisplatin. We recommend using high-dose intraperitoneal cisplatin following cytoreductive surgery when treating malignant peritoneal mesothelioma.
Blackham, AU; Shen, P; Stewart, JH; Russell, GB; Levine, EA
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