Surgery Plus Intraoperative Peritoneal Hyperthermic Chemotherapy (IPHC) to Treat Peritoneal Carcinomatosis (IPHC)

DISEASE CHARACTERISTICS: * Histologically confirmed peritoneal carcinomatosis with the following histologies: * Primary peritoneal mesothelioma * Adenocarcinoma of gastrointestinal tract origin * Confined to peritoneal cavity * Tumor mass could be debulked to less than 2.5 cm in diameter per tumor deposit * Must not have failed prior intraperitoneal platinum therapy * Treatment failure is defined as radiographic evidence of disease progression on 2 consecutive CT scans within 3 months after therapy PATIENT CHARACTERISTICS: Age: \- 20 to 70 years old Performance status: \- KPS\>50 Life expectancy: \- More than 8 weeks Hematopoietic: * WBC at least 3,500/mm\^3 * Platelet count at least 80,000/mm\^3 Hepatic: * Bilirubin no greater than 2 times upper limit of normal (ULN) * AST and ALT no greater than 2 times ULN * Liver enzymes no greater than 2 times ULN Renal: \- Creatinine no greater than 1.5 mg/dL Cardiovascular: * No significant irreversible cardiac ischemia * No significant changes in ECG recording Pulmonary: * FEV\_1 at least 1.2 liters * Maximum voluntary ventilation at least 50% expected Other: * Not pregnant or nursing * Negative pregnancy test * No concurrent medical problems that would preclude surgery