title: Implications of the use of vascular CDL in hemodialysis patients: analysis of echographic insertion sites.
abstract: BACKGROUND
  Chronic renal failure is a disease which prevalence has been increasing in Brazil. Hemodialysis is their primary therapeutic modality and arterio-venous fistula their preferential access. Nevertheless, many patients require the use of double-lumen catheters, either as permanent or temporary access. Vascular complications related to this procedure may occur, and their best method of non-invasive analysis is ultrasound analysis.
  
  
  OBJECTIVE
  To analyze the complications by the use of double-lumen catheter in patients with chronic kidney disease on hemodialysis, at "Santa Casa de Misericordia de Ponta Grossa" hospital, through eco-Doppler exam.
  
  
  METHODS
  Observational research, analytical, case-control type, to obtain data we used TASY®, interview, physical exam and imaging (eco-Doppler).
  
  
  RESULTS
  None of the variables was significant isolated as a predictor of vascular impact in eco-Doppler, which detected changes in 31.25% of the cases. Physical exam showed poor accuracy compared to Doppler capacity to detect complications (K = -0.123).
  
  
  CONCLUSIONS
  We conclude that the vascular effects of the use of CDL are frequent (31.25%). Manifesting itself in the form of occlusions with/without recanalization and stenoses. This leads us to required a prior analysis of the insertion site with Doppler, in order to avoid unnecessary procedures and possible complications.
authors.affiliation: Universidade Estadual de Ponta Grossa.
authors.forename: Douglas Squizatto
authors.initials: DS
authors.lastname: Leite
authors.affiliation: Universidade Estadual de Ponta Grossa.
authors.forename: Natasha Lure Bueno
authors.initials: NL
authors.lastname: de Camargo
authors.affiliation: Santa Casa de Misericórdia de Ponta Grossa.
authors.forename: Flamarion de Barros
authors.initials: Fde B
authors.lastname: Cordeiro
authors.affiliation: Universidade Estadual de Ponta Grossa.
authors.forename: Adriana de Fátima Menegat
authors.initials: Ade F
authors.lastname: Schuinski
authors.affiliation: Universidade Estadual de Ponta Grossa.
authors.forename: Gilberto
authors.initials: G
authors.lastname: Baroni
mesh_terms: D016022:Case-Control Studies; D002408:Catheters, Indwelling / Q000009:adverse effects*; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D006435:Renal Dialysis / Q000295:instrumentation*; D018608:Ultrasonography, Doppler; D014652:Vascular Diseases / Q000000981:diagnostic imaging* / Q000209:etiology*