Hemodynamic and Cardiac Function Parameters During Heated Intraoperative Intraperitoneal Chemotherapy Using the Open “Coliseum Technique”
Background: Heated intraoperative intraperitoneal chemotherapy achieves high peritoneal concentrations with limited systemic absorption and has become an important tool in the management of patients with peritoneal carcinomatosis from low-grade malignancies such as pseudomyxoma peritonei and in selected cases of high-grade tumors such as colon adenocarcinoma. When the closed abdomen technique is used, its perioperative toxicity seems to be related to the hemodynamic and cardiac function changes associated with increased body temperature and increased intra-abdominal pressure.
Methods: Hemodynamic and cardiac function variables during heated intraoperative intraperitoneal chemotherapy, using an open abdomen “coliseum technique,” were measured in 15 patients with the use of a noninvasive esophageal Doppler monitor.
Results: The hemodynamic and cardiac function changes were characterized by an increased heart rate, increased cardiac output and decreased systemic vascular resistance associated with an increased body temperature, and decreased effective circulating volume with the urinary output tending to decrease as the therapy progressed.
Conclusion: Heated intraoperative intraperitoneal chemotherapy with the open abdomen coliseum technique induces a hyperdynamic circulatory state with an increased intravenous fluid requirement and avoids changes because of increased intra-abdominal pressure. Hemodynamic and cardiac stability, as documented by normal blood pressure and adequate urinary output, can be achieved by liberal intravenous fluids, titrated to frequent urinary output determination.
Key Words:Heated intraoperative intraperitoneal chemotherapy—Operative monitoring.
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