title: Risk Factors of a Pulmonary Thromboembolism After Colorectal Surgery.
abstract: OBJECTIVE
  Previous studies have revealed that predictors and risk factors of pulmonary thromboembolism (PTE) are malignancy, immobilization, diabetes, and obesity in the postoperative patients. However, in patients undergoing colorectal cancer, studies of PTE have not been enough. Thus, we investigated the risk factors of PTE related to colorectal surgery.
  
  
  METHODS
  From January 2009 to October 2014, 312 patients received colorectal surgery without other organ resection. The postoperative patients with PTE were 14 (4.5%), and they were classified by sex, age, and stage as a 1:3 paired match to the control group. A multiple logistic regression was performed to identify which factors were associated with PTE.
  
  
  RESULTS
  One patient was in stage I, 3 in stage II, 9 in stage III, and 1 in stage IV. In the binary logistic regression analysis, history of diabetes mellitus (odds ratio, 6.498; P = 0.031) and being overweight (odds ratio, 10.018; P = 0.014) were independent risk factors for PTE in patients undergoing colorectal cancer.
  
  
  CONCLUSIONS
  A history of diabetes mellitus and being overweight were independent risk factors of PTE after colorectal cancer.
authors.affiliation: Department of Surgery, Inje University Sanggye Paik Hospital, Seoul, Korea.
authors.forename: Junyub
authors.initials: J
authors.lastname: Kim
authors.affiliation: Department of Surgery, Inje University Sanggye Paik Hospital, Seoul, Korea.
authors.forename: Byung-Noe
authors.initials: BN
authors.lastname: Bae
authors.affiliation: Department of Surgery, Inje University Sanggye Paik Hospital, Seoul, Korea.
authors.forename: Hyun Seok
authors.initials: HS
authors.lastname: Jung
authors.affiliation: Department of Surgery, Inje University Sanggye Paik Hospital, Seoul, Korea.
authors.forename: Inseok
authors.initials: I
authors.lastname: Park
authors.affiliation: Department of Surgery, Inje University Sanggye Paik Hospital, Seoul, Korea.
authors.forename: Hyunjin
authors.initials: H
authors.lastname: Cho
authors.affiliation: Department of Surgery, Inje University Sanggye Paik Hospital, Seoul, Korea.
authors.forename: Geumhee
authors.initials: G
authors.lastname: Gwak
authors.affiliation: Department of Surgery, Inje University Sanggye Paik Hospital, Seoul, Korea.
authors.forename: Kiwhan
authors.initials: K
authors.lastname: Kim
authors.affiliation: Department of Surgery, Inje University Sanggye Paik Hospital, Seoul, Korea.
authors.forename: Hong-Joo
authors.initials: HJ
authors.lastname: Kim
authors.affiliation: Department of Surgery, Inje University Sanggye Paik Hospital, Seoul, Korea.
authors.forename: Young Duk
authors.initials: YD
authors.lastname: Kim
keywords: Antineoplastic agents; Colorectal neoplasms; Pulmonary embolism