particles, with a hydrophilic polymer-modified
starch, can accommodate up to seven times
their dry weight in exudate, and then generate
a hydrogel. Even if the gel supports autolytic
debridement, its primary indication in wound
therapy is the antimicrobial treatment of
infected wounds.
41,42
e
Some multi-component dressings include an
enzyme alginogel, which is claimed to create a
protective film, protecting the wound borders
from maceration.
38
Administration
For correct use of an autolytic debridement, the
dressing is directly applied to the wound surface.
As the administration of the available dressings
varies according to the properties of the dressings,
specific administration guidance apply to different
types of products.
For autolytic dressings without absorptive properties,
it should in general be mentioned that these may
be combined with an exudate-absorbing secondary
dressing to allow already-detached, non-viable tissue
to be absorbed. For autolytic debridement, it is most
common to change dressings once daily. Remains
of the gels can be removed with tap water or sterile
irrigation solutions.
34,43
In addition, it should be mentioned that:
a
For hydrogels, a coating with a thickness of
at least 5mm is necessary; smaller or deeper
wounds may be completely filled with the gel.
Hydrogel sheets should be applied so that they
overlap 2cm around the wound edges.
c
Dressings with highly absorptive properties
should be applied at a thickness of a least 3mm.
The dressing should be replaced after 1–3 days,
depending on the level of exudate.
For cadexomer iodine, it is recommended that
the total dose should not exceed 150g/week and
the overall treatment should not be longer than
3 months, for a single course of treatment.
44
Benefits
Products for autolytic debridement are fairly
well documented as easy to use and causing
little-to-no pain. They do not damage healthy
tissues (selective debridement) and are claimed to
promote the formation of granulation tissue and
epithelialisation.
22,37
Most of these products are
likely to require few dressing changes.
45
With regard to specific groups of products, it
should be mentioned that:
a
A further benefit of hydrogel sheets is that they
are mostly transparent, thus allowing wound
inspection without having to remove the
dressing. As well as the debridement effects,
certain hydrogel sheets are claimed to provide
a cooling effect, which may lead to pain relief,
especially for patients with burns. However, for
other patients, for example patients with arterial
disease, this cooling effect may be unpleasant.
34
c
Benefits of the absorptive dressings with
autolytic properties include removal of
slough, provision of moisture, absorption and
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