title: Collagen implant with gentamicin sulphate reduces surgical site infection in vascular surgery: a prospective cohort study.
abstract: BACKGROUND
  Surgical site infection (SSI) is a common complication after vascular surgery. It may cause exposure of the underlying prosthesis causing graft infection, which may require the removal of the vascular graft, increasing amputation and mortality risks. Graft contamination usually occurs during operative procedure or by direct spread from an infected wound. It is therefore advisable to a strong effort in reducing SSI. Topic antibiotics have not been fully studied in vascular surgery, but collagen implant with gentamicin sulphate has shown to reduce SSI in cardiac surgery, orthopaedics, and general surgery procedures.
  
  
  METHODS
  Sixty (60) non-diabetic and non-obese patients with lower limb ischaemia with indication for femoropopliteal PTFE prosthetic bypass were allocated into 2 groups of 30 patients. A collagen implant impregnated with gentamicin sulphate (Collatamp(®)) was applied in the groin incision adjacent to the prosthesis in one group, and the other was a control group. The same surgical team operated all patients. Szilagyi classification was used.
  
  
  RESULTS
  There was no SSI (0% - 0/30) in the collagen implant with gentamicin sulphate group, contrasting with 6 cases (20% - 6/30) of SSI (grade I and II) in the control group (p = 0.024). In-hospital day's data shows a significant difference between the two groups (p = 0.004) with a mean of 5.66 days for implant group and 8.10 days for control group. There was no SSI grade III.
  
  
  CONCLUSIONS
  Collagen implant with gentamicin sulphate (Collatamp(®)) reduces SSI in the groin incision in ischaemic patients submitted to femoropopliteal PTFE prosthetic bypass. Days of hospitalization are also reduced. Decreasing SSI rate and in-hospital days, this implant may also reduce health care costs. Because this is a small pilot study, a multicentre RCT is necessary for validation.
authors.affiliation: Centro Hospitalar e Universitário de Coimbra (Covões), Quinta dos Vales, São Martinho do Bispo, 3041-801 Coimbra, Portugal. Electronic address: carloscostaalmeida@yahoo.com.
authors.forename: Carlos Eduardo Perdigão
authors.initials: CE
authors.lastname: Costa Almeida
authors.affiliation: Centro Hospitalar e Universitário de Coimbra (Covões), Quinta dos Vales, São Martinho do Bispo, 3041-801 Coimbra, Portugal.
authors.forename: Luis
authors.initials: L
authors.lastname: Reis
authors.affiliation: Centro Hospitalar e Universitário de Coimbra (Covões), Quinta dos Vales, São Martinho do Bispo, 3041-801 Coimbra, Portugal.
authors.forename: Luis
authors.initials: L
authors.lastname: Carvalho
authors.affiliation: Centro Hospitalar e Universitário de Coimbra (Covões), Quinta dos Vales, São Martinho do Bispo, 3041-801 Coimbra, Portugal.
authors.forename: Carlos Manuel
authors.initials: CM
authors.lastname: Costa Almeida
mesh_terms: D000368:Aged; D000900:Anti-Bacterial Agents / Q000008:administration & dosage*; D019072:Antibiotic Prophylaxis / Q000379:methods*; D003094:Collagen / Q000008:administration & dosage*; D004343:Drug Implants; D005260:Female; D005839:Gentamicins / Q000008:administration & dosage*; D006801:Humans; D007902:Length of Stay / Q000706:statistics & numerical data; D008297:Male; D011446:Prospective Studies; D013530:Surgical Wound Infection / Q000517:prevention & control*; D058017:Vascular Grafting
chemical_list: D000900:Anti-Bacterial Agents; D004343:Drug Implants; D005839:Gentamicins; D003094:Collagen
keywords: Collagen implant; Collatamp(®); Gentamicin; Groin; Surgical site infection; Vascular infection