Introduction: An analysis of experience of surgical and gynecologic oncologists in the United States with the use of hyperthermic intraperitoneal chemotherapy for women with invasive epithelial ovarian cancer (EOC).
Methods: An Internet-based registry (HYPER-O) collected data from collaborating institutions. Eligibility included women with EOC treated with hyperthermic intraperitoneal chemotherapy. Borderline and nonepithelial cancers were excluded.
Results: As of July 1, 2008, 141 women were eligible for analysis treated at the following time points: frontline (n = 26), interval debulking (n = 19), consolidation (n = 12), and recurrence (n = 83). The mean perfusion temperatures were 38.5 to 43.6°C (median, 41.9°C) for inflow and 36.9 to 42.9°C (median, 41°C) for outflow for 30 to 120 minutes. Treatment was with a platinum agent (n = 72), mitomycin (n = 53), or a combination (n = 14). Median follow-up was 18 months (range, 0.3-140.5 months) and median overall survival 30.3 months (95% confidence interval, 23.0-37.6) with 2-, 5-, and 10-year overall survival probabilities of 49.1%, 25.4%, and 14.3%, respectively. Of the 141 patients, 110 (78%) experienced recurrence of ovarian cancer and 87 died, 3 (0.5%) dying within 30 days of surgery. In the multivariable analysis, the factors significant for increased survival were sensitivity to platinum response (P = 0.048), completeness of cytoreduction scores of 1 or 0 (P = 0.025), carboplatin alone or a combination of 2 or more chemotherapy agents used (P = 0.011), and duration of hospital stays of 10 days or less (P = 0.021).
Conclusions: Hyperthermic intraperitoneal chemotherapy is a viable additional treatment option for patients with invasive EOC and may extend life in selected groups. It warrants further study in randomized controlled trials.
- Hyperthermic intraperitoneal chemotherapy (HIPEC)
- Ovarian neoplasms
- Intraperitoneal chemotherapy
- Cytoreductive surgery
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Dr Helm has received 3 honoraria for lectures on hyperthermic intraperitoneal chemotherapy in ovarian cancer from ThermaSolutions, Inc (White Bear Lake, Minn).
Dr Helm has received grant support from ThermaSolutions, Inc for the HYPER-O registry and from Sanofi-Aventis (Bridgewater, NJ) for a clinical research study investigating hyperthermic intraperitoneal chemotherapy.