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J Surg Oncol. 2014 Feb;109(2):104-9. doi: 10.1002/jso.23446.

Cytoreduction and heated intraperitoneal chemotherapy for colorectal cancer: are we excluding patients who may benefit?

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1
Department of Surgery and Oncology, University of Calgary, Calgary, Alberta, Canada.

Abstract

BACKGROUND:

Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) are increasingly used to treat peritoneal carcinomatosis from colorectal cancer. It is still relatively unknown which poor prognostic factors to avoid in order to optimize patient selection for CRS + HIPEC.

METHODS:

Between February 2003 and October 2011, 68 consecutive colorectal cancer patients who underwent CRS + HIPEC with a complete cytoreduction were identified from a prospective database. Survival analysis was performed using the Kaplan-Meier method, with log rank testing of differences between groups. Multivariate analysis was conducted using Cox proportional hazard regression.

RESULTS:

Median follow-up was 30.3 (range, 2-88) months amongst survivors. Patients with a peritoneal cancer index (PCI) of 10 or less showed improved survival over those with a PCI of 11 or higher (P = 0.03). No difference in survival was seen for the other potentially poor prognostic variables including lymph node status, synchronous peritoneal disease, peri-operative systemic chemotherapy, and rectal cancer primary.

CONCLUSIONS:

A low PCI was associated with improved survival. Complete CRS + HIPEC appears to result in similar survival outcomes regardless of delivery of peri-operative systemic chemotherapy. Rectal origin, lymph node status, and synchronous peritoneal disease should not be used as an absolute exclusion criteria for CRS + HIPEC based on current data.

KEYWORDS:

HIPEC; colorectal cancer; cytoreduction; peritoneal carcinomatosis

PMID:
24449172
DOI:
10.1002/jso.23446
[Indexed for MEDLINE]
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