Chong2
Negative pressure wound care can be maintained during HBOT with apparent safety and effectiveness.
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Clinical bottom line: 1. Some weak evidence that suction can be maintained safely for negative pressure dressings during HBOT |
Citation/s:1. Chong SJ, Kwan TM, Weihao L, Joang KS, Rick SC.Maintenance of negative-pressure wound therapy while undergoing hyperbaric oxygen therapy. Diving Hyperb Med. 2011 Sep;41(3):147-50
Lead author's name and fax: Jack Chong : chong_si_jack@hotmail.com
Three-part Clinical Question:For patients with chronic wounds being treated with hyperbaric oxygen, can negative pressure wound dressings being maintained during therapy, compared to stopped for therapy, lead to safe and effective wound management?
Search Terms: Chronic wounds, negative pressure wound dressings, pain
The Study:Single-blinded concealed randomised controlled trial with intention-to-treat.
The Study Patients: Patients with diabetic ulcers on the lower leg for whom both HBOT and negative pressure wound dressings (NPWD) had been prescribed.
Control group (N = 6; 6 analysed): NPWD suspended during a single HBOT session
Experimental group (N = 6; 6 analysed): NPWD maintained using internal suction during a single HBOT session.
The Evidence:
Outcome |
Time to Outcome |
Control group |
NPWD group |
Relative risk reduction |
Absolute risk reduction |
NNT |
Better dressing appearance |
After each session |
0.17 |
0.83 |
399% |
0.67 |
2 |
95% CIs: |
146% to 652% |
0.24 to 1.09 |
1 to 4 | |||
Comments:
1. Very small crossover trial with six patients and two treatments each.
2. Authors stated no difference in pain scores during and after treatment but have not given any of the numerical results.
3. Assessors were blinded.
Appraised by:Mike Bennett m.bennett@unsw.edu.au; Thursday, 27 May 2021
Kill or Update By: May 2024
