Meta-analysis of survival of patients with stage IV colorectal cancer managed with surgical resection versus chemotherapy alone

Stillwell, A.P., Buettner, P.G., and Ho, Y-H. (2010) Meta-analysis of survival of patients with stage IV colorectal cancer managed with surgical resection versus chemotherapy alone. World Journal of Surgery, 34 (4). pp. 797-807.

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Abstract

Background: There is no consensus regarding the appropriate management of asymptomatic and minimally symptomatic patients with stage IV colorectal cancer and irresectable metastases.

Methods: A literature search was conducted on Medline and Embase. Outcome measures included: survival; postoperative morbidity and mortality; complications from the primary tumor and the need for surgery to manage complications; the likelihood of curative surgery after initial response to primary therapy; and length of hospital stay. Quantitative meta-analysis was performed where appropriate.

Results: Eight retrospective studies, including 1,062 patients, met the criteria for inclusion in this study. Metaanalysis has shown an improvement in the survival of patients managed with palliative resection of their primary tumor, with an estimated standardized median difference of 6.0 months (standardized difference, 0.55; 95% confidence interval (CI), 0.29, 0.82; p\0.001). Patients managed with chemotherapy alone were 7.3 times more likely to have a complication from the primary tumor (95% CI, 1.7, 34.4; p = 0.008). There was no difference in the response rates to chemotherapy, making metastatic disease amendable to curative resection (0.85; 95% CI 0.40, 1.8; p = 0.662).

Conclusions: To date, only retrospective data are available, showing that palliative resection of the primary tumor in asymptomatic or minimally symptomatic patients with stage IV colorectal cancer is associated with longer survival. Resection of the primary tumor reduces the likelihood of complications from the primary tumor and avoids the need for emergency procedures.

Item ID: 11651
Item Type: Article (Refereed Research - C1)
ISSN: 1432-2323
Date Deposited: 03 Aug 2010 05:49
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1103 Clinical Sciences > 110323 Surgery @ 30%
11 MEDICAL AND HEALTH SCIENCES > 1112 Oncology and Carcinogenesis > 111205 Chemotherapy @ 30%
11 MEDICAL AND HEALTH SCIENCES > 1103 Clinical Sciences > 110307 Gastroenterology and Hepatology @ 40%
SEO Codes: 92 HEALTH > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920102 Cancer and Related Disorders @ 100%
Citation Count from Web of Science Web of Science 34
Downloads: Total: 4
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