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Effect of Vancomycin applied over transected sternal edges on the rate of wound infections in patients undergoing Coronary Artery Bypass Grafting at National Hospital Kandy, Sri Lanka: A randomized controlled trial

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SLCTR Registration Number

SLCTR/2026/024


Date of Registration

15 Sep 2026

The date of last modification

Sep 15, 2026



Application Summary


Scientific Title of Trial

Effect of Vancomycin applied over transected sternal edges on the rate of wound infections in patients undergoing Coronary Artery Bypass Grafting at National Hospital Kandy, Sri Lanka: A randomized controlled trial


Public Title of Trial

Effect of Vancomycin applied over transected sternal edges on the rate of wound infections compared to standard of care in patients undergoing Coronary Artery Bypass Grafting at National Hospital Kandy, Sri Lanka: A randomized controlled trial


Disease or Health Condition(s) Studied

Ischemic heart disease, Coronary bypass surgery


Scientific Acronym

None


Public Acronym

None


Brief title

None


Universal Trial Number

U1111-1343-5284


Any other number(s) assigned to the trial and issuing authority

2026/EC/11


Trial Details


What is the research question being addressed?

Does the local application of vancomycin over the transected sternal edges during coronary artery bypass grafting reduce the rate of postoperative surgical site infections compared with standard care among patients treated at National Hospital Kandy, Sri Lanka?


Type of study

Interventional


Study design

Allocation

Randomized controlled trial


Masking

Double blinded : Participants, Outcome assessors


Control

Standard therapy/practice


Assignment

Parallel


Purpose

Prevention


Study Phase

Phase 3


Intervention(s) planned

Study setting: Cardiothoracic Surgical Unit, National Hospital Kandy, Sri Lanka.

Randomization: Individual participants will be randomized in a 1:1 ratio using block randomization with variable block sizes of 4, 6 and 8. The randomization sequence will be generated before study commencement using the Sealed Envelope blocked randomization system. Unit of randomization: Individual participant. Allocation concealment: The randomization codes will be kept securely under lock and key by the ward master/sister in the preoperative ward. The ward master/sister will communicate the allocation to the lead operating-theatre nurse by telephone immediately before sternal closure. The lead nurse will inform the trial team of the allocation.

Intervention: Vancomycin 2 g, prepared as a paste and applied topically over the transected sternal edges once, immediately before sternal closure, after the previously applied bone wax has been scraped off. The application is performed following the coronary artery bypass grafting operation by the consultant cardiothoracic surgeon or a trained medical officer. Control: Standard care. After the previously applied bone wax is scraped off, the sternum is closed according to routine unit practice without application of vancomycin. No study vancomycin is administered to the control group.

Standard care: Both groups undergo CABG and routine perioperative/postoperative care according to the National Hospital Kandy cardiothoracic unit standard practice, including the usual antibiotic cover. Blinding: Participants and outcome assessors will be blinded to allocation. The surgical team administering the intervention cannot be blinded because allocation is required immediately before sternal closure. Outcome assessments will be performed by medical officers/consultants who are blinded to the intervention


Inclusion criteria

  1. Patients who undergo coronary artery bypass surgery that requires median sternotomy at National hospital Kandy cardiothoracic unit.
  2. Elective surgeries
  3. Age more than 18 years
  4. Both male and female
  5. Negative MRSA screening prior to surgery

Exclusion criteria

  1. Known allergy/hypersensitivity to vancomycin or other glycopeptide/peptidoglycan-group antibiotics, including teicoplanin.
  2. Known immunodeficiency or current systemic immunosuppressive therapy.
  3. Emergency CABG surgery.
  4. Active sternal infection at the time of surgery.
  5. Redo/re-sternotomy cases.
  6. Patients who need intra venous Vancomycin.


Primary outcome(s)

1.

Incidence of postoperative sternal surgical site/wound infection, assessed by wound inspection for discharge and pain, measurement of temperature for fever with or without FBC, CRP as indicated

[

postoperative 5 days , 1 month and 3 months intervals

]

Secondary outcome(s)

1.

Postoperative hospital length of stay, measured in days from surgery/admission until hospital discharge.

[

At the time of discharge

]
2.

Dose and duration of the usual perioperative antibiotic cover received by each participant, recorded from the treatment/medication records

[

Time of discharge, 3 weeks and 3 months

]
3.

Use of additional antibiotics on top of the usual antibiotic cover for patients undergoing coronary artery bypass grafting and National hospital Kandy – Number of days

[

Time of discharge, 3 weeks and 3 months

]
4.

Clinical findings related to sternal wound healing an infections during scheduled follow-up assessments at postoperative day 5

[

Postoperative day 5

]

Target number/sample size

60, 30 in each arm


Countries of recruitment

Sri Lanka


Anticipated start date

2026-09-25


Anticipated end date

2028-02-28


Date of first enrollment


Date of study completion


Recruitment status

Pending


Funding source

No


Regulatory approvals

Ethical review committee, Faculty of Medicine, University of Peradeniya.



State of Ethics Review Approval


Status

Approved


Date of Approval

2026-06-21


Approval number

2026/EC/11


Details of Ethics Review Committee

Name: Ethical review committee, Faculty of Medicine, University of Peradeniya.
Institutional Address:Faculty of Medicine, University of Peradeniya.
Telephone:081-2389106
Email: chairperson.erc@med.pdn.ac.lk

Contact & Sponsor Information


Contact person for Scientific Queries/Principal Investigator

Dr. Muditha Lansakara
Consultant Cardiothoracic Surgeon
Cardiothoracic Surgery Unit, National hospital, Kandy, Sri Lanka
071-0316907
071- 8480625

mudithalansa@yahoo.co.in

Contact Person for Public Queries

Dr. Muditha Lansakara
Consultant Cardiothoracic Surgeon
Cardiothoracic Surgery Unit, National hospital, Kandy, Sri Lanka
071-0316907
071- 8480625

mudithalansa@yahoo.co.in


Primary study sponsor/organization

Cardiothoracic Surgical Unit/Department, National Hospital Kandy, Sri Lanka

National hospital, Kandy, Sri Lanka
071-0316907


https://nhkandy.org/

Secondary study sponsor (If any)

None





Trial Completion details


Do the investigators plan to share identified individual clinical trial participant-level data (IPD)?

Yes


IPD sharing plan description

On request with the approval of study team and the hospital administration


Study protocol available

Yes


Protocol version and date

Version II, 06.05.2026


Protocol URL


Results summary available

No


Date of posting results


Date of study completion


Final sample size


Date of first publication


Link to results


Brief summary of results