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Negative pressure wound therapy
This document outlines negative pressure wound therapy (NPWT), also known as vacuum assisted closure (VAC). It discusses the mechanism of action, components, indications, contraindications, application process, advantages, monitoring considerations, potential complications, and conclusion regarding NPWT. NPWT applies sub-atmospheric pressure to a wound through a sealed dressing to promote healing in acute or chronic wounds by removing excess fluid, increasing blood flow, and stimulating the growth of new tissue. It is indicated for various open wounds where closure is not possible, such as pressure ulcers, surgical wounds, diabetic ulcers, and more. Contraindications include wounds with necrotic tissue or exposed anatomy. Monitoring includes pressure levels, drainage
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Negative pressure wound therapy
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- 2. OUTLINE • Introduction • Mechanismof action VAC • Component of VAC • Application • Advantages • Indications • Contraindication • Monitoring • Complication • Conclusion
- 3. INTRODUCTION • Is atherapeutic technique using a vacuum dressing to promote healing in acute or chronic wounds • First described by Fleischmann et al in 1993 • promotes wound healing by applying a vacuum drainage through a special sealed dressing. • Also called Vacuum Assisted Closure (VAC),
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- 5. INDICATION OF NPWT •indicated for almost any open wound where surgical closure is not feasible or desirable. • Full thickness pressure ulcers • Dehisced surgical wounds • Diabetic/neuropathic ulcers • Venous leg ulcers • Post-surgical wounds • Traumatic wounds • Pre & post op flaps & grafts • Burns wounds
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- 14. CONTRAINDICATION OF NPWT •Necrotic tissue & eschar • Unexplored fistulas • Malignant wounds • Exposed vasculature • Exposed anastomosis • Exposed nerves • Exposed organs.
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- 16. HOW WE APPLYTHE VAC
- 28. APPLICATION PRESSURE ONVAC • Neonates : - 50 mmHg. • Children < 2 years : -50 to -75 mmHg • Children > 2 years : -75 to -125 mmHg • Adults : -125mmHg
- 29. ADVANTAGE OF NPWT •Maintenance of moist • Removal of excess interstitial fluid • Increased local vascularity • Decreased bacterial colonization • Quantification of wound drainage • Increased rate of granulation tissue formation • Increased rate of contraction • Increased rate of epithelization • Protect wound • Prevent cross infection
- 30. MONITORING •Pressure (75 –125mmHg) •Effluent / Electrolytes •Infections •Pain control
- 31. TERMINATION OF NPWT •Adequategranulation base allowing for: •Changing to conventional dressing • Split-thickness skin graft • Flap closure
- 38. CONCLUSION • NPWT hasrevolutionized wound management. • It is easy, safe and can be achieved using cheap and conventional material in resource constraint settings.
- 40. THANK YOU WOUND COURSE– NEVER TOO LATE 2018