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Study to Evaluate DACC Dressings for the Prevention of Surgical Site Infections in Women Undergoing Caesarean Section.

Not Applicable
Completed
Conditions
Surgical Site Infection
Infection; Cesarean Section
Interventions
Device: DACC impregnated dressing
Device: Standard surgical dressing
Registration Number
NCT02168023
Lead Sponsor
Medical University of Warsaw
Brief Summary

Surgical site infections (SSIs) constitute an important medical and socioeconomic problem worldwide. Despite the fact that the risk factors for SSIs were identified and the continuously increasing medical knowledge in the fields of tissue engineering, molecular biology and microbiology facilitated the development of numerous new recommendations and methods for management, in many cases the available options for successful treatment of post-operative wound infections remain limited. Non-treated or inappropriately treated SSIs often lead to necrosis of the surrounding tissues, wound dehiscence, formation of fistulas, or become sites of origin for systemic infections. Patients are exposed to risk of further complications and hospitalization time extends resulting in increased total treatment costs. Treatment prolongation affects also the quality of life and psychosocial functioning of patients with impaired wound healing. Considering the arguments above, appropriate prevention and management of infected post-surgical wounds is currently one of the priorities for the majority of invasive medical disciplines.

Obstetrics constitute a field of medicine in which the issues associated with wound healing are particularly relevant. According to the literature data wound infections occur in approximately 1.8-11.3% of women undergoing caesarean section.

Dialkylcarbamoyl chloride (DACC) is a fatty acid derivative that irreversibly binds microorganisms to the dressing fibres as a result of hydrophobic interaction. As the mechanism of DACC action is solely physical no chemical agents are released into the wound bed and the dressing could be safely used by women during puerperal period.

The purpose of this randomized controlled study is to compare the effect of DACC impregnated dressing and standard surgical dressing in the prevention of SSIs in adult women following caesarean section. This study will also evaluate pre-, peri- and postoperative risk factors of SSIs and analyze health economics of DACC impregnated dressings for prevention of post-cesarean wound infections.

Detailed Description

This is a single-blinded randomized controlled trial performed at the Department of Obstetrics and Gynecology of Medical University of Warsaw. The study will involve 518 patients undergoing caesarean section who after giving their informed consent will be randomly divided into two groups: study (n=259) and control group (n=259). The study group will receive DACC impregnated dressing - Sorbact Surgical Dressing ® (ABIGO Medical AB, Sweden) and the control group will receive standard surgical dressing.

In all participants transverse skin incision and low transverse uterine incision will be performed during caesarean section procedure.

All participants will receive prophylactic dose of antibiotics prior to the start of surgery (1g cefazolin intravenously 0-30 minutes before surgery) and wound irrigation with octenidine prior to the subcutaneous tissue closure.

For fascial incision, subcutaneous tissue and skin incision closure continuous antibacterial braided absorbable suture, single monofilament absorbable suture and subcuticular continuous monofilament non-absorbable suture will be used, respectively.

Dressing will be left in place for the first 48 hours post caesarean section unless clinical reason exists to replace it. After the first 48 hours postoperatively all of the dressings will be removed and first wound evaluation will be performed. On post-operative day 3 patients will be discharged and indicated to revisit on post-operative day 7 to remove the skin suture. During this follow-up visit second wound review will be performed for any signs of infection. Third, and final wound assessment will take place on post-operative day 14.

To analyze overall treatment costs patients with SSI will be followed up until the end of treatment, up to 8 weeks post surgery.

Recruitment & Eligibility

Status
COMPLETED
Sex
Female
Target Recruitment
543
Inclusion Criteria
  • age ≥ 18 years
  • undergoing elective or emergency caesarean section
  • transverse skin incision
  • low transverse uterine incision
  • single and multiple pregnancy
  • intravenous administration of 1g cefazolin 0-30 minutes prior to the start of surgery
  • irrigation of the wound with octenidine prior to the subcutaneous tissue closure
Exclusion Criteria
  • patients age <18 years
  • patients physical or mental incapacity to give informed consent
  • skin incision other than transverse
  • uterine incision other than low transverse
  • patients that did not receive routine prophylactic dose of antibiotics prior to the start of surgery
  • patients without irrigation of the wound with octenidine prior to the subcutaneous tissue closure

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
DACC impregnated dressingDACC impregnated dressingPatients undergoing elective or emergency caesarean section with DACC impregnated dressing Sorbact Surgical Dressing ® (ABIGO Medical AB, Sweden) placed over post-caesarean wound after skin closure, the dressing will be removed after the first 48 hours postoperatively
Standard surgical dressingStandard surgical dressingPatients undergoing elective or emergency caesarean section with standard surgical dressing placed over post-caesarean wound after skin closure, the dressing will be removed after the first 48 hours postoperatively
Primary Outcome Measures
NameTimeMethod
Percentage of patients with surgical site infectionwithin the first 14 days post surgery

SSI determined according to Centers for Disease Control and Prevention (CDC) criteria

Secondary Outcome Measures
NameTimeMethod
Surgeons experienceDay 0 (day of surgery)

resident, ob/gyn specialist with professional experience \<5 years, ob/gyn specialist with professional experience ≥5 years

Length of surgeryDay 0 (day of surgery)

minutes from skin incision until skin closure

Mode of caesarean sectionDay 0 (day of surgery)

elective or emergency; emergency caesarean section defined as caesarean section performed within 30 minutes from decision

Percentage of patients with SSI associated wound dehiscencewithin the first 8 weeks post surgery
Length of the primary and any secondary hospitalizationDay 0 (day of surgery/ the first day of readmission to hospital) until the date of discharge, up to 8 weeks post surgery
Readmissions to hospital due to SSI following caesarean sectionwithin the first 8 weeks post surgery
Percentage of patients with antibiotic treatment due to SSI following caesarean sectionwithin the first 8 weeks post surgery
Patients parityDay 0 (day of surgery)

primiparous or multiparous

Patients pre-gestational weightDay 0 (day of surgery)
Patients pre-gestational body mass indexDay 0 (day of surgery)
Patients gestational weight gainDay 0 (day of surgery)
Percentage of patients with nicotine dependenceDay 0 (day of surgery)
Percentage of patients with gestational diabetes mellitus or pre-gestational diabetes mellitusDay 0 (day of surgery)
Patients haemoglobin concentration prior to the start of surgeryDay 0 (day of surgery)
Patients haemoglobin concentration after the surgery24 hours after surgery
Percentage of patients with surgical intervention due to SSIwithin the first 8 weeks post surgery
Pathogens responsible for SSIwithin the first 8 weeks post surgery

Wound swab testing to be made in all patients presenting clinical symptoms of surgical site infection

Patients ageDay 0 (day of surgery)
Patients raceDay 0 (day of surgery)

Trial Locations

Locations (1)

Chair and Department of Obstetrics and Gynecology, II Faculty of Medicine, Medical University of Warsaw

🇵🇱

Warsaw, Masovian Voivodeship, Poland

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