Absorbent Hydrofiber and Calcium Alginate Foam Dressings |
Posted: April 12, 2017 |
Hydrofiber dressings are comprised of a substance which is very absorbent called sodium carboxymethylcellulose (CMC). When you are to purchase these dressings they are obtainable in either sheets or ropes.
Both, hydrophilic and hydrophobic properties can be found within the material. This is within the carboxy and methylcellulose regions, respectively.
The CMC bounds the exudate to the middle of the fiber and should not be bioresorbable.
The way in which this works would be that the glycoproteins is bound from the carboxymethylcellulose on cell surfaces. This allows absorption and sequestering of inflammatory cells particularly the neutrophils. This can help in hastening the re-epithelialization.
The benefit of this type of dressing is it provides a moisture balanced milieu. This helps slow degrees of autolysis as well as controls to an excellent extent the exudate because the dressing features a gelling property from the dressing, core.
Inside a study conducted of chronic venous ulcers which CMC dressings was applied when compared with gauze demonstrated that the usage of CMC dressing was better. The likelihood of healing were 130% more there had been a possibility of healing within 18 weeks. Additionally, it demonstrated that there have been reduced healthcare costs because of less necessity of nursing and physician costs which are part and parcel of dressing changes.
The Hydrofiber dressings are prescribed to people who have moderate to heavy exudates. These may also be used with plenty of surface bacterial burden.
However, these dressings usually are not preferred for dry wounds or wounds which have little exudate. The Hydrofiber dressings have good fiber strength and may be loosely packed into sinuses.
They may be non-adhesive and must have a tape or perhaps a secondary dressing to ensure they are in position.
Calcium alginate dressings however are produced from kelp and made up of calcium alginate polysaccharides.
These dressings have the idea of a sodium-calcium ion exchange involving the exudate from your wound as well as the dressing. This interaction of ion as well as the exudate creates a sodium alginate gel that features a moisture-retentive property and autolytic debridement potential. This will make these dressings an applicant for moderately draining wounds.
The physical properties from the dressing are based on the different composition of units of mannuronic and galuronic acid.
Additionally increased concentrations of galuronic acid promote fiber strength and degrees of mannuronic acid encourage gelling. This can help in easier packing from the dressing available for sale.
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