• Wien. Klin. Wochenschr. · Oct 2024

    Surgical and oncological outcome after cytoreductive surgery and hyperthermic intraperitoneal chemotherapy for peritoneal mesothelioma : A retrospective single center experience.

    • Catharina Müller, Michael Bergmann, Anton Stift, Thomas Bachleitner-Hofmann, and Stefan Riss.
    • Department of Surgery, Division of General Surgery, Comprehensive Cancer Center Vienna, Medical University of Vienna, Spitalgasse 23, 1090, Vienna, Austria.
    • Wien. Klin. Wochenschr. 2024 Oct 25.

    BackgroundPeritoneal mesothelioma (PM) is a rare disease with various histopathological subtypes. For malignant peritoneal mesothelioma and borderline subgroups locoregional therapy with cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) has been implemented. The aim of our study was to retrospectively present the outcome after CRS and HIPEC for patients with different subtypes of peritoneal mesothelioma.MethodsIn total 15 patients received CRS and HIPEC due to peritoneal mesothelioma at our tertiary referral hospital between 2013 and 2022. Surgical and oncologic outcomes of 14 of those patients were retrospectively evaluated as one patient was lost to follow-up.ResultsThe cohort consisted of 9 patients with diffuse malignant peritoneal mesothelioma (64.3%), 3 patients with multicystic peritoneal mesothelioma (21.4%) and 2 patients with well-differentiated peritoneal mesothelioma (14.3%). Complete cytoreduction was possible in 85.7% (n = 12). The major complication rate was 28.6% (n = 4) and the reoperation rate was 14.3% (n = 2). Median follow-up was 55 months (standard error, SE 15.0%, 95% confidence interval, CI 25.6-84.4 months). Over this time period 64.3% (n = 9) had no evidence of disease, 21.4% (n = 3) were alive with disease and 14.3% (n = 2) died of peritoneal mesothelioma. The median recurrence-free survival of patients was 13 months (SE 13.0%, 95% CI 0.0-32.2 months). None of the patients with multicystic peritoneal mesothelioma had evidence of disease at the time of last follow-up.ConclusionPatients with peritoneal mesothelioma should receive locoregional treatment as good oncological results can be achieved with reasonable postoperative morbidity. Thus, awareness is necessary for this rare but potentially aggressive disease to offer the best medical care.© 2024. The Author(s).

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