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Cytoreductive surgery and continuous hyperthermic peritoneal perfusion (CHPP) involve the conduct of a complex surgical procedure and delivery of high-dose hyperthermic chemotherapy to the peritoneum. This therapeutic modality has been shown to benefit patients with peritoneal carcinomatosis resulting from gastrointestinal and ovarian tumors and mesothelioma. However, it is unknown whether the primary disease (mesothelioma versus peritoneal carcinomatosis) affects hemodynamic and metabolic perturbations during the course of CHPP with cisplatin. We examined the perioperative course of patients undergoing CHPP with cisplatin and evaluated the effect of primary diagnosis (mesothelioma versus peritoneal carcinomatosis) on hemodynamic and metabolic parameters in response to peritoneal perfusion. Sixty-nine mesothelioma and 100 peritoneal carcinomatosis patients underwent 169 consecutive cytoreduction and CHPP procedures with general anesthesia. During CHPP, patients from both groups developed significant increases in central venous pressure, and heart rate, decreases in mean arterial pressure (all P &lt; 0.0001), metabolic acidosis with significant decreases in pH and bicarbonate (P &lt; 0.0001), deterioration of gas exchange with significant increases in PaCO(2) and oxygen alveolar-arterial gradient (P &lt; 0.0001), and significant increases in activated partial thromboplastin time (aPTT) and prothrombin time (PT) and decreases in hematocrit and platelet counts (all P &lt; 0.0001). However, patients with mesothelioma had lesser increases in temperature (P &lt; 0.01) and heart rate (P &lt; 0.0001) and lesser decreases in hematocrit (P = 0.0013) during CHPP and greater decreases in sodium bicarbonate (P = 0.0082) after completion of CHPP compared with patients with peritoneal carcinomatosis. We conclude that the transient hemodynamic and metabolic perturbations associated with cytoreductive surgery and CHPP with cisplatin can vary according to the primary diagnosis (mesothelioma versus peritoneal carcinomatosis) warranting this therapy.

annals of surgical oncology

Cytoreductive Surgery and Continuous Hyperthermic Peritoneal Perfusion in Patients with Mesothelioma and Peritoneal Carcinomatosis: Hemodynamic, Metabolic, and Anesthetic Considerations