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69-year-old female patient with
Hydrocoll – absorbent hydrocolloid dressing
an 8-year history of venous leg
Hydrocoll is a self-adhesive, absorbent hydrocolloid dress-
ulcer (Case study:
M. Zimmermann, Heidenheim)
ing for cleansing and conditioning of non-infected
1) State of the ulcer on 27 March
wounds with moderately severely to slightly secretion.
on starting the new therapy con-
The principle of action of
cept starting with TenderWet
The term “colloid” comes from the ancient Greek and
Hydrocoll
for initial cleansing.
2) Treatment was changed to
means a substance which is integrated in a very finely
PermaFoam to influence the still
1 2
dispersed form in a matrix. Hydrocoll therefore consists of
heavy flow of exudate and pre-
hydrocolloids capable of absorbing and swelling and are
vent maceration of wound mar-
incorporated in a self-adhesive elastomer. A semiperme-
gins on 4 April.
3) Continuation of PermaFoam
able layer serves to prevent bacterial and moisture pene-
therapy, a strip of epithelial tissue
tration.
is visible at the wound margin.
4) State of the ulcer on 6 August,
The central feature of the mechanism of action of
after changing to Hydrocoll two
weeks previously to promote
Hydrocoll is the hydrocolloids incorporated in the carrier
epithelisation.
layer. On absorbing wound exudate they swell to form a
34
gel which expands into the wound and maintains a moist
wound environment. The gel remains absorbent until the
PermaFoam is atraumatic, sticking to the wound and hydrocolloids are saturated. During the swelling process
growth of tissue into the foam structure are minimised. the absorbed wound exudate, which is always contami-
Due to the high absorptive capacity and the very good nated with detritus, bacteria and their toxins, is securely
retention, PermaFoam can – even with profuse exudation retained within the gel structure.
(when no complications exist) - remain on the wound for
several days. The adhesive power of the elastomer allows Hydrocoll to
Hydrocoll is easy to apply like a
12
be applied to the wound like an adhesive plaster. When
plaster. When the hydrocolloids
are saturated by absorbing exu-
PermaFoam is available in spe-
PermaFoam is soft and flexible and therefore clings well the gel forms, the adhesive power on the wound surface
date, this is shown by a blister-
cial, wound adapted sizes to
to the wound contours. The dressing is held in place with disappears, leaving Hydrocoll fixed only on the intact
like bulging of the dressing.
allow optimal wound manage-
ment in all cases. PermaFoam
elastic conforming bandages (e.g. Peha-haft) or over the periwound area in a manner atraumatic to the wound.
Hydrocoll should then be
entire area with elastic non-woven sheet dressing for
changed.
concave (1) for use on the heels
and PermaFoam round (2) for the
dressing retention (e.g. Omnifix elastic). For easy fixation,
care of smaller ulcers in problem
PermaFoam has a adhesive border around the edges and
zones.
the adhesive is kind to the skin. PermaFoam is available
in a variety of versions and sizes.
Phase-specific wound management [52.53]
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