title: Age Over 80 is a Possible Risk Factor for Postoperative Morbidity After a Laparoscopic Resection of Colorectal Cancer.
abstract: OBJECTIVE
  With extended life expectancy, the mean age of patients at the time of diagnosis of colorectal cancer and its treatment, including radical resection, is increasing gradually. We aimed to evaluate the impact of age on postoperative clinical outcomes after a laparoscopic resection of colorectal cancers.
  
  
  METHODS
  This is a retrospective review of prospectively collected data. Patients with primary colorectal malignancies or premalignant lesions who underwent laparoscopic colectomies between January 2009 and April 2013 were identified. Patients were divided into 6 groups by age using 70, 75, and 80 years as cutoffs: younger than 70, 70 or older, younger than 75, 75 or older, younger than 80, and 80 or older. Demographics, pathological parameters, and postoperative clinical outcomes, including postoperative morbidity, were compared between the younger and the older age groups.
  
  
  RESULTS
  All 578 patients underwent a laparoscopic colorectal resection. The overall postoperative complication rate was 21.1% (n = 122). There were 4 cases of operative mortality (0.7%). Postoperative complication rates were consistently higher in the older groups at all three cutoffs; however, only the comparison with a cutoff at 80 years showed a statistically significant difference between the younger and the older groups.
  
  
  CONCLUSIONS
  Age over 80 is a possible risk factor for postoperative morbidity after a laparoscopic resection of colorectal cancer.
authors.affiliation: Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University of School of Medicine, Seoul, Korea.
authors.forename: Taekhyun
authors.initials: T
authors.lastname: Kang
authors.affiliation: Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University of School of Medicine, Seoul, Korea.
authors.forename: Hyung Ook
authors.initials: HO
authors.lastname: Kim
authors.affiliation: Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University of School of Medicine, Seoul, Korea.
authors.forename: Hungdai
authors.initials: H
authors.lastname: Kim
authors.affiliation: Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University of School of Medicine, Seoul, Korea.
authors.forename: Ho-Kyung
authors.initials: HK
authors.lastname: Chun
authors.affiliation: Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University of School of Medicine, Seoul, Korea.
authors.forename: Won Kon
authors.initials: WK
authors.lastname: Han
authors.affiliation: Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University of School of Medicine, Seoul, Korea.
authors.forename: Kyung Uk
authors.initials: KU
authors.lastname: Jung
keywords: Aged; Colonic neoplasms; Laparoscopy
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