High Peritoneal Cancer Index Research Articles

Evolution of locoregional treatment for peritoneal carcinomatosis: single-center experience of 308 procedures of cytoreductive surgery and perioperative intraperitoneal chemotherapy

Background Peritoneal carcinomatosis imposes an enormous clinical burden to the oncologic community. This study reports the patterns of care of the locoregional approach of cytoreductive surgery (CRS) and perioperative intraperitoneal chemotherapy as a curative procedure for peritoneal carcinomatosis from the experience of a single tertiary center in Australia. Methods We performed a review of clinical records from a prospective database of patients who were treated at the St George Hospital Peritoneal Surface Malignancy Program according to a standard protocol. Results A total of 308 CRS were performed in 249 patients with peritoneal surface malignancy; the mean age was 53 years and 55% were women. Over the years, we expanded the age limit for treatment ( P = .03), reduced intensive care unit stays ( P = .04), reduced amount of blood transfusion ( P = .03), treated patients with a higher peritoneal cancer index ( P < .001), achieved higher rates of complete cytoreduction ( P = .003), increased use of PIC ( P < .001), and improved complication rate ( P = .02) and mortality rate ( P = .01). The median survival of patients treated over the years also improved ( P = .001). Conclusions We show the maturity of the treatment of peritoneal carcinomatosis with CRS and perioperative intraperitoneal chemotherapy in our institution after an initial learning curve with expansion of the selection criteria, improved perioperative outcomes, improved surgical results, and long-term survival outcomes.

Long-Term Survival in Patients with Pseudomyxoma Peritonei Treated with Cytoreductive Surgery and Perioperative Intraperitoneal Chemotherapy: 10 Years of Experience from a Single Institution

Cytoreductive surgery (CRS) and perioperative intraperitoneal chemotherapy (PIC) has been recognized as a treatment option for pseudomyxoma peritonei. This study reports the survival outcomes, clinicopathological prognostic factors, and a learning curve from a single institution's experience. Patients with pseudomyxoma peritonei underwent CRS and PIC, which was comprised of hyperthermic intraperitoneal chemotherapy (HIPEC) and/or early postoperative intraperitoneal chemotherapy (EPIC), according to a standardized treatment protocol in our institution. Clinicopathological factors were analyzed to determine their prognostic value for survival using univariate and multivariate analysis. Time period comparison was performed to study the effect of a learning curve. A total of 106 patients (43 men and 63 women) were treated. The mortality rate was 3% and severe morbidity rate was 49%. The median follow-up was 23 (range, 0-140) months. The overall median survival was 104 months with a 5-year survival rate of 75%. The progression-free survival was 40 months with a 1-year progression-free survival rate of 71%. Factors influencing survival include histopathological type of tumor, use of both HIPEC and EPIC, peritoneal cancer index, completeness of cytoreduction, and severe morbidity. The results demonstrate a learning curve where patients with a higher peritoneal cancer index (PCI) were treated, reduced amount of blood products required, more patients undergoing HIPEC and the combined HIPEC and EPIC, more redo-procedures performed, and a longer progression-free survival. This report demonstrates long-term survival outcomes, acceptable perioperative outcomes, and a learning curve associated with the treatment of patients with pseudomyxoma peritonei.