Negative pressure wound therapy for wounds that are difficult to heal

Click thumbnail to view full-size
In preparation for negative pressure wound treatment, clean the skin around the wound bed thoroughly. The wound will be treated for two to three days under the dressing without removal and the skin should be cleaned so as not to trap any bacteria froSometimes if the wound edge is very uneven or inflamed, aquaflo can be cut and placed around the wound to protect the skin. ( We do not show this in this picture) Another product used to protect surrounding skin is duoderm. After the wound has been cPLace a strip of stomi paste about 1cm away from the edge of the wound where the drain will exit the wound bed and suction dressing.This is to both avoid any pressure wound developing from the drain tubing and also to ensure that the dressing will bePlace the drain onto the gauze and cover with another piece of gauze. Lead the drain tubing over the paste and seal with another piece of paste on top to hold in place.Cover the whole wound area with transparent film and fix with sports tape. I like to use 3m sportstape as it is easy to remove but still stays in place over time. Neither does it leave horrible sticky black marks after use. Now you are rerady to conn
In preparation for negative pressure wound treatment, clean the skin around the wound bed thoroughly. The wound will be treated for two to three days under the dressing without removal and the skin should be cleaned so as not to trap any bacteria fro
In preparation for negative pressure wound treatment, clean the skin around the wound bed thoroughly. The wound will be treated for two to three days under the dressing without removal and the skin should be cleaned so as not to trap any bacteria fro
Sometimes if the wound edge is very uneven or inflamed, aquaflo can be cut and placed around the wound to protect the skin. ( We do not show this in this picture) Another product used to protect surrounding skin is duoderm. After the wound has been c
Sometimes if the wound edge is very uneven or inflamed, aquaflo can be cut and placed around the wound to protect the skin. ( We do not show this in this picture) Another product used to protect surrounding skin is duoderm. After the wound has been c
PLace a strip of stomi paste about 1cm away from the edge of the wound where the drain will exit the wound bed and suction dressing.This is to both avoid any pressure wound developing from the drain tubing and also to ensure that the dressing will be
PLace a strip of stomi paste about 1cm away from the edge of the wound where the drain will exit the wound bed and suction dressing.This is to both avoid any pressure wound developing from the drain tubing and also to ensure that the dressing will be
Place the drain onto the gauze and cover with another piece of gauze. Lead the drain tubing over the paste and seal with another piece of paste on top to hold in place.
Place the drain onto the gauze and cover with another piece of gauze. Lead the drain tubing over the paste and seal with another piece of paste on top to hold in place.
Cover the whole wound area with transparent film and fix with sports tape. I like to use 3m sportstape as it is easy to remove but still stays in place over time. Neither does it leave horrible sticky black marks after use. Now you are rerady to conn
Cover the whole wound area with transparent film and fix with sports tape. I like to use 3m sportstape as it is easy to remove but still stays in place over time. Neither does it leave horrible sticky black marks after use. Now you are rerady to conn

A very basic description of how negative pressure therapy works.

I have been working with negative pressure wound therapy for eight years and have held many courses around Europe on the different types of techniques used when treating different types of wounds.

Negative pressure wound therapy is used to both clean wounds and encourage granulation of hard to heal wounds. There are no wounds too small or too large, too difficult or too simple to treat.

I have experienced a lot over the past eight years and have witnessed chronic wounds on patients which they have had for over two years actually heal and close. This does, however, take time and patience but the wounds are treated and healed.

I have witnessed patients being admitted to hospital for amputations of limbs due to diabetic ulcers that have become infected being cleansed and treated successfully. Again this takes patience and time. Unfortunately not all patients are so lucky but i can honestly say that i have experienced far more successes than failures amongst the several hundreds of wounds i have been involved with.

What is negative pressure wound therapy?

First of all i will say that i am going to try to explain this to you as simply as possible. I will not use difficult medical terminology as i feel that it is important for people not working in the medical profession to understand this method of treatment.

This is a topical negative pressure which treats wounds locally. That is that the treatment is only applied to the area where the bandage or dressing is inserted.

By applying a drain into the dressing you are able to suck out wound debris and fluid from the wound bed allowing the wound to receive more nutrients and oxygen from the surrounding blood vessels at the base and edges of the wound.  The wound fluid, bacteria, pus etc is sucked through the drain and tubing into a canister found on the suction machine. This fluid etc is then removed from the machine and emptied as infected material.

The gauze dressing in the wound cavity is covered by a transparent plaster which only breathes in one direction. When the wound therapy machine is switched on it causes a negative pressure/ vacuum under the dressing allowing the inflammation fluid to be drawn off and away from the woundbed continously.

I like to call this procedure the human bodies vacuum cleaner as it litteraly sucks out the grime dirt and stuff that keeps bacteria happy and wounds from growing or healing.

When the unwanted grime is removed and there is no more fluid to empty out the granulation begins. Granulation is that nice red beefy appearance which you see growing inside of the wound. Anything yellow, black or slimey is not healthy and should be removed before treatment is continued.

The wound grows from the bottom up and from the edges inwards towards the middle. Always inspect for fistulas and pockets deep within the wound on each wound dresing change as these need to be treated before allowing the wound to close completely.

Also when changing dressings use your sense of smell this tells you a lot about a wound. Smelly wounds are usually infected wounds but do not confuse the smell of the dirty bandage full of grime, wait until the wound has been cleansed and then observe.

It is obvious that a bandage which has been in the wound for several days without direct oxygen will smell unpleasant.

Should the wound be really infected at the start of treatment then i would always suggest to shift the dressing at least once a day for the first three days before going over to shifting every third day.

It is possible to achieve complete closure of a wound but in some cases the doctor will bring the granulation to a point where the wound has been filled and then they will order a skin transplant to finish the procedure quickly. This saves both time and the scar tissue area is reduced.

In this case the skin graft is also fixed into place with three further days of treatment with the vacuum machine.( Specific technique needed )

There are very many different machines found on the market today and as long as a negative pressure can be applied they all work just as well.

The main thing is that the technique chosen for the type of wound is correct.

Depending on the type of wound and dressing used you can be treated for several hours each day, intermittently or continously for several days at a time before the dressing is either changed or removed.

If this hub is of interest i would be more than happy to provide more pictures and techniques with even more descriptive details.

More by this Author

  • Runners Pain in the Big Toe
    0

    The runners pain in the Toe……Big Toe The "metatarsalphalangeal joint " is the first knuckle of the big toe, where the toe joins the foot. This joint is very important for runners. Almost...

  • A large pain in the CORN
    2

    Corns are often very small but are very very irritating little things that last a long time and difficult to get rid of.  They can interfere with daily activities in ways that you just couldn't imagine unless you...


Comments 5 comments

jess 6 years ago

We are using this in the home great help thank you for the good guide


grant 5 years ago

are there other vital fluids being extracted from the body in the suctioning process? such as perhaps platelets or white blood cells?


Aisla profile image

Aisla 5 years ago from Norway Author

Normally not. However, if you are treating for example, an abdominal compartment syndrome the vitals must be continually monitored. You must never apply negative pressure over exposed veins, arteries or any other organs without first taking necessary precautions. Each wound type is treated differently but this is what makes this treatment so good.

The principal of treatment is to encourage granulation. You are basically just removing the fluid that would be in excess in a wound naturally. This is why bandages are often changed several times daily.


Melissa 4 years ago

How much faster do the wounds heal with NWPT?


Aisla profile image

Aisla 4 years ago from Norway Author

When the wounds are cleared of bacteria or necrotic tissue the wounds do heal significantly faster. There are many different types of wounds and each are treated with different techniques. To say how long it would take to heal I would both need to see the wound and know the patients medical history. I hope this helps. If you wonder abut any particular wound type please let me know. I will do my best to give you an answer.

    Sign in or sign up and post using a HubPages Network account.

    0 of 8192 characters used
    Post Comment

    No HTML is allowed in comments, but URLs will be hyperlinked. Comments are not for promoting your articles or other sites.


    Click to Rate This Article
    working