3 research outputs found
A retrospective study on the use of post-operative colonoscopy following potentially curative surgery for colorectal cancer in a Canadian province
BACKGROUND: Surveillance colonoscopy is commonly recommended following potentially curative surgery for colorectal cancer. We determined factors associated with patients undergoing a least one colonoscopy within five years of surgery. METHODS: In this historical cohort study, data on 3918 patients age 30 years or older residing in Alberta, Canada, who had undergone a potentially curative surgical resection for local or regional stage colorectal cancer between 1983 and 1995 were obtained from the provincial cancer registry, ministry of health and cancer clinic charts. Kaplan-Meier estimates of the probability of undergoing a post-operative colonoscopy were calculated for patient, tumor and treatment-related variables of interest. RESULTS: A colonoscopy was performed within five years of surgery in 1979 patients. The probability of undergoing a colonoscopy for those diagnosed in the 1990s was greater than for those diagnosed earlier (0.65 vs 0.55, P < 0.0001). The majority of the difference was seen at one-year following surgery, consistent with changes in surveillance practices. Those most likely to undergo a colonoscopy were those under age 70 (0.74 vs 0.50 for those age 70 – 79, P < 0.0001), who underwent a pre-operative colonoscopy (0.69 vs 0.54, P < 0.0001), and who underwent a resection with reanastomosis (0.62 vs 0.47 for abdominoperineal resection, P < 0.0001) by a surgeon who performs colonoscopies (0.68 vs 0.54, P < 0.0001). CONCLUSIONS: The majority of patients undergo colonoscopy following colorectal cancer surgery. However, there are important variations in surveillance practices across different patient and treatment characteristics
Use of colonoscopy following colorectal cancer surgery: A population-based study in a setting of universal health care
Kaplan-Meier survival curves of time to first post-operative colonoscopy for patients diagnosed from 1983 – 1989 and 1990 – 1995
<p><b>Copyright information:</b></p><p>Taken from "A retrospective study on the use of post-operative colonoscopy following potentially curative surgery for colorectal cancer in a Canadian province"</p><p>BMC Cancer 2004;4():14-14.</p><p>Published online 19 Apr 2004</p><p>PMCID:PMC419354.</p><p>Copyright © 2004 Hilsden et al; licensee BioMed Central Ltd. This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original URL.</p> A divergence in the curves at 12 months is consistent with increased use of colonoscopy for post-operative surveillance