title: Colonic Stents for Colorectal Cancer Are Seldom Used and Mainly for Palliation of Obstruction: A Population-Based Study.
abstract: Self-expandable stents for obstructing colorectal cancer (CRC) offer an alternative to operative management. The objective of the study was to determine stent utilization for CRC obstruction in the province of Ontario between April 1, 2000, and March 30, 2009. Colonic stent utilization characteristics, poststent insertion health outcomes, and health care encounters were recorded. 225 patients were identified over the study period. Median age was 69 years, 2/3 were male, and 2/3 had metastatic disease. Stent use for CRC increased over the study period and gastroenterologists inserted most stents. The median survival after stent insertion was 199 (IQR, 69-834) days. 37% of patients required an additional procedure. Patients with metastatic disease were less likely to go on to surgery (HR 0.14, 95% CI 0.06-0.32, p < 0.0001). There were 2.4/person-year emergency department visits (95% CI 2.2-2.7) and 2.3 hospital admissions/person-year (95% CI 2.1-2.5) following stent insertion. Most admissions were cancer or procedure related or for palliation. Factors associated with hospital admissions were presence of metastatic disease, lack of chemotherapy treatment, and stoma surgery. Overall the use of stents for CRC obstruction remains low. Stents are predominantly used for palliation with low rates of postinsertion health care encounters.
authors.affiliation: Department of Surgery, University of Toronto, Toronto, ON, Canada.
authors.forename: Anna M
authors.initials: AM
authors.lastname: Borowiec
authors.affiliation: Department of Medicine, University of Toronto, Toronto, ON, Canada.
authors.forename: Charlie S K
authors.initials: CS
authors.lastname: Wang
authors.affiliation: Department of Surgery, University of Toronto, Toronto, ON, Canada.
authors.forename: Elaine
authors.initials: E
authors.lastname: Yong
authors.affiliation: Department of Surgery, University of Toronto, Toronto, ON, Canada.
authors.forename: Calvin
authors.initials: C
authors.lastname: Law
authors.affiliation: Department of Surgery, University of Toronto, Toronto, ON, Canada.
authors.forename: Natalie
authors.initials: N
authors.lastname: Coburn
authors.affiliation: Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.
authors.forename: Rinku
authors.initials: R
authors.lastname: Sutradhar
authors.affiliation: Department of Surgery, University of Toronto, Toronto, ON, Canada.
authors.forename: Nancy
authors.initials: N
authors.lastname: Baxter
authors.affiliation: Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada.
authors.forename: Lawrence
authors.initials: L
authors.lastname: Paszat
authors.affiliation: Department of Medicine, University of Toronto, Toronto, ON, Canada.
authors.forename: Jill
authors.initials: J
authors.lastname: Tinmouth
mesh_terms: D000046:Academic Medical Centers / Q000706:statistics & numerical data; D000368:Aged; D015179:Colorectal Neoplasms / Q000150:complications* / Q000473:pathology / Q000628:therapy; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data; D006764:Hospitals, Community / Q000706:statistics & numerical data; D006801:Humans; D007415:Intestinal Obstruction / Q000209:etiology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D009864:Ontario; D010166:Palliative Care; D019233:Retreatment; D012189:Retrospective Studies; D000069322:Self Expandable Metallic Stents / Q000706:statistics & numerical data*; D015996:Survival Rate; D016896:Treatment Outcome