Predictive factors analysis for malignant peritoneal mesothelioma

Shi Jin1, Shoubo Cao, Jingyan Cao

  • 1Department of Medical Oncology, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Harbin, 150081, China.

Abstract

Insights

Malignant peritoneal mesothelioma (MPM) survival is improved in patients aged ≤65 years with abdominal pain who receive cytoreductive surgery plus adjuvant therapy. These factors independently predict better outcomes for MPM patients.

Area of Science:

  • Oncology
  • Surgical Oncology
  • Medical Oncology

Background:

  • Malignant peritoneal mesothelioma (MPM) is a rare cancer with poor prognosis and poorly understood natural history.
  • This study investigates prognostic factors and management strategies for MPM.

Purpose of the Study:

  • To identify independent prognostic factors for malignant peritoneal mesothelioma (MPM).
  • To evaluate the impact of treatment strategies on MPM patient survival.

Main Methods:

  • Retrospective review of clinical records for 39 MPM patients (2003-2014).
  • Overall survival analyzed using Kaplan-Meier curves and Cox regression.
  • Prognostic factors assessed through univariate and multivariate analyses.

Main Results:

  • Median survival was 10.0 months; 2-year survival rate was 15.8%.
  • Key clinical presentations included abdominal distension, pain, and weight loss.
  • Laboratory and CT scan findings indicated ascites, peritoneal masses, and thickening.
  • Cytoreductive surgery (CRS) plus adjuvant therapy was associated with improved survival compared to chemotherapy or best supportive care.

Conclusions:

  • Age ≤65 years, presence of abdominal pain, and undergoing CRS plus adjuvant therapy are independent positive prognostic factors for MPM.
  • These findings can inform treatment decisions and patient counseling for MPM.

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