title: [Analyses of risk factors for deep vein thrombosis in lower extremities].
abstract: OBJECTIVE
  To explore the risk factors of deep vein thrombosis (DVT) in lower extremities.
  
  
  METHODS
  Retrospective data analyses were performed for a total of 1264 DVT patients at our department from January 2010 to December 2012.
  
  
  RESULTS
  Among them, 984 cases (77.85%) were over 40 years old, no overt cause was found for 642 cases (50.79%), 142 cases (11.23%) had a clear history of trauma before onset (without surgery). Among 316 recurrent postoperative cases, there were the surgical histories of orthopedics (n = 142, 11.23%), gynecology (n = 90, 7.12%), general practice (n = 42, 3.32%), vascular (n = 23, 1.82%), urological (n = 12, 0.94%) and others (n = 7, 0.55%). Ten cases (0.79%) occurred after suffering bedridden chronic diseases. And 20 cases (1.58%) were caused by conditions during pregnancy or postpartum period.had Malignant tumors were found in 25 (1.98%) patients. After long-term uses of hormones, 10 patients (0.79%) of rheumatoid arthritis had a recurrence.Owing to varicose veins, 27 patients (2.14%) recurred. Eight patients (0.63%) had a history of drug abuse, 2 cases (0.16%) suffered depression and 62 cases (4.9%) were recurrent.
  
  
  CONCLUSIONS
  There are many causative factors of DVT so that prevention is of great importance. We should pay more attention to the prevention and treatment of high-risk DVT patients.
authors.affiliation: Department of Vascular Surgery, Kunming General Hospital of Chengdu Military Command, Kunming 650032, China.
authors.forename: Tian
authors.initials: T
authors.lastname: Qiu
authors.forename: Shu-guang
authors.initials: SG
authors.lastname: Guo
authors.forename: Wei
authors.initials: W
authors.lastname: Fang
authors.forename: Hong-bin
authors.initials: HB
authors.lastname: Su
authors.forename: Kuang-rong
authors.initials: KR
authors.lastname: Chen
authors.forename: Kai
authors.initials: K
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D005260:Female; D006801:Humans; D035002:Lower Extremity / Q000098:blood supply*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012307:Risk Factors; D020246:Venous Thrombosis / Q000209:etiology*; D055815:Young Adult