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  • Title: Cytoreductive surgery and hyperthermic intraperitoneal perfusion with chemotherapy in children with peritoneal tumor spread: A French nationwide study over 14 years.
    Author: Scalabre A, Philippe-Chomette P, Passot G, Orbach D, Elias D, Corradini N, Brugières L, Msika S, Leclair MD, Joseph S, Brigand C, Becmeur F, Soler C, Pezet D, Gagniere J, Glehen O, Sarnacki S.
    Journal: Pediatr Blood Cancer; 2018 Apr; 65(4):. PubMed ID: 29286576.
    Abstract:
    BACKGROUND: Efficacy and role of cytoreductive surgery (CRS) and hyperthermic peritoneal perfusion with chemotherapy (HIPEC) remain poorly documented in pediatric tumors. METHODS: This retrospective national study analyzed all pediatric patients with peritoneal tumor spread treated by CRS and HIPEC as part of a multimodal therapy in France from 2001 to 2015. RESULTS: Twenty-two patients (nine males and 13 females) were selected. The median age at diagnosis was 14.8 years (4.2-17.6). Seven had peritoneal mesotheliomas; seven, desmoplastic small round cells tumors (DSRCT); and eight, other histologic types. A complete macroscopic resection (CC-0, where CC is completeness of cytoreduction) was achieved in 16 (73%) cases. Incomplete resections were classified as CC-1 in four (18%) cases and CC-2 in two (9%) cases. Fourteen (64%) patients had complications within 30 days from HIPEC, requiring an urgent laparotomy in eight (36%) cases. Thirteen (59%) patients received adjuvant chemotherapy and four (18%) received total abdominal radiotherapy after surgery. Sixteen (72%) patients had relapse after a median time of 9.6 months (1.4-86.4) and nine (41%) eventually died after a median time of 5.3 months (0.1-36.1) from relapse. Six (27%) patients (four mesotheliomas, one pseudopapillary pancreatic tumor, and one DSRCT) were alive and in complete remission after a median follow-up of 25.0 months (5.3-78.2). The mean overall survival (OS) and disease-free survival (DFS) were 57.5 months (95% CI [38.59-76.32]) and 30.9 months (95% CI [14.96-46.77]). Patients with a peritoneal mesothelioma had a significantly better OS (p = 0.015) and DFS (p = 0.028) than other histologic type. CONCLUSIONS: In this national series, outcomes of HIPEC are encouraging for the treatment of peritoneal mesothelioma in children.
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