Società Lombarda di Chirurgia Studio randomizzato di Fase II per la valutazione di un approccio di revisione chirurgica sistematica, associata a chemio-ipertermia intraperitoneale ed eventuale chirurgia citoriduttiva,versus follow-up standard in pazienti ad alto rischio di sviluppare carcinosi peritoneale da carcinoma colo-rettale Shigeki Kusamura e Baratti Dario Period January 1995 - February 2009 47 studies Median survival 5-year survival Operative morbidity Operative death 2 randomized (1 completed) 2 controlled 43 observational (3 multicentric) 11.9-60.1 months 11-51% (median 19%) 14.8-76% 0-12% Median OS 29 months Median OS 5.4 months Mortality rate: 8% Most of the serious complications seem to be related to the extent of surgery, and may be related to the extent of peritoneal involvement Median survival: 30.1 mths 5yr OS: 27% Morbidity: 31% Mortality: 3% 1. The earlier the better 2. Not optimal sensitivity of clinical, tumor markers and imaging in detecting early PC Second-look surgery Systematic use of planned reoperation in asymptomatic patients with malignant disease who are theoretically at risk for developing recurrent or metastatic disease despite initial curative surgery Largerly employed in Epithelial Ovarian Cancer during the 90s Which candidates? Wangensteen OH Wis. Med J 1949 1. Singapore general hospital 2. 3019 colorectal cancer 3. 349 (13%) developed PC - 214 synchronous - 135 metachronous Logistic regression analysis for development of metachronous PC Population-based cohort study 11.124 patients with colorectal cancer in Stockholm County 924 patients (8·3 %) had synchronous or metachronous PC Cumulative incidence of metachronous PC: 4.2% PC was the sole site of meta at the time of diagnosis in 177 of 7799 Hazard ratios for metachronous PC after resection of stage I-III colon cancer Macroscopically resected minimal PC Macroscopically resected ovarian metastases Perforated primary tumor Adjuvant systemic oxaliplatin/ irinotecan for 6 months Follow-up for 6 months Negative re-staging Second-look surgery Annals of surgery, 2011 Syncr. PC n=25 Ovarian M n= 8 Perforated T N=8 TOTAL n=41 SUGERY + sCT PC at second look operation n=15 (60%) PCI: 9+/-6 N=5 (62%) PCI: 7+/-5 N=3 (37%) PCI: 5+/-2 n=23 (56%) 5-year overall survival in 41 pts undergoing HIPEC±CRS= 90% MORTALITY: 2% Morbidity= 9.7% Annals of surgery, 2011 Patients undergoing radical primary treatment and ≥3 months of adjuvant systemic CT INCLUSION CRITERIA • resected minimal PC • ovarian metastases • perforated primary tumor • T4 • obstruction • bleeding End-point: overall survival Accrual: 35 pts per arm Duration: 5 years Trial Comparing Simple Follow-up to Exploratory Laparotomy Plus "in Principle“HIPEC in Colorectal Patients A phase III multicentric French study (ProphyloCHIP) Colon cancer with high risk of PC Adjuvant systemic Folfox for 6 months Follow-up for 6 months Negative re-staging Second-look surgery Follow-up • Minimal PC, resected at the same time as the primary •Ovarian metastases • Rupture of the primary tumour • Iatrogenic rupture of the primary tumour during surgery