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For the third in our series on adjunctive therapies, we examine the role of negative pressure wound therapy in the treatment of wounds.
Treatment overview
Negative pressure wound therapy (NPWT) is an intervention Topics widely used to treat problems of acute and chronic wounds that do not respond to conventional moist wound healing techniques. A negative pressure, typically -125 mmHg is applied to the wound bed, removing excess exudate and help to establish the water balance. Furthermore, NPWT is thought to stimulate the formation of granulation tissue, reduce the interstitial edema and improve microvascular blood flow.
The negative pressure in NPWT is applied via a tube from a vacuum device, through a gauze or dressing foam which was sealed with a transparent film. The negative pressure may be applied continuously or intermittently, depending on the type of wound and objectives treatment.
Directions
- Chronic, acute and traumatic wounds
- Thick Partial burns
- Wound dehiscence
- Pressure ulcers
- Neuropathic ulcers
- Muscle flaps
- Skin Grafts
- Because of inadequate arterial or venous Wounds
- Wounds with bone or tendon exposed
- Orthopedics and degloving injuries
- Wounds with exposed equipment
Cons-indications
- Dry wounds
- Necrotic wounds
- Wounds in body cavities
- Injuries in malignant tumors
- Presence of blood vessels exposed or untreated osteomyelitis
In addition, caution must be used with patients anticoagulants or injury with active bleeding, and NWPT should not be applied immediately after an incision and drainage procedure
Benefits
- Provides a moist closed wound healing
- Helps reduce contamination by bacteria outside
- Removes excess fluid from the wound and surrounding tissues
- Reduced cell death caused by dehydration
- May facilitate wound contraction
- If used for more than a few days, it may be more profitable than standard wound care
Disadvantages
- Some patients report pain treatment
- The congestion the device makes it difficult mobility
- Because of the suction effect, some patients develop hypertension May ulcers in areas treated
- Obtaining a seal to the air can be difficult to achieve in some places, the wound
- Do can be used on necrotic wounds
- Be expensive, especially on a short timetable
Interested to become certified in managing wound care? Woundeducators.com is your online resource for the most comprehensive information available wound care, and may help you take the next step in your career. Contact us today for more information.
References:
C. Ahearn (2009). Intermittent NPWT and Lower negative pressures – What are the differences between the Current Science and Practice: A Review; Ostomy Wound Management 55 (6), p.22
Sibbald RG, Mahoney J, VAC Therapy Canadian Consensus Group. (2003). A consensus report on the use of vacuum-Assisted Closure in chronic, difficult to heal wounds, Ostomy Wound Management, 49 (11), p.52
WoundEducators.com offers comprehensive online wound management training programs designed to educate and prepare health care practitioners to become certified in the rapidly growing field of wound management. Visit us at: http://woundeducators.com for more information.
BSN 908 Group 31 (3)
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