Devitalised tissue
‘Devitalised tissue’ or ‘non-viable tissue’ are terms that are
used interchangeably. They describe tissue that has no blood
supply and will not come back to life with treatment or
time (Wounds UK, 2013). This devitalised non-viable tissue
Leanne Atkin
needs removing to allow healing to occur. Non-viable tissue
can occur for a number of reasons, including: infection,
ischaemia, hypoxia of the wound bed and dehydration of
the wound bed. Non-viable tissue comes in many different
forms, from thin superficial slough (Figure 1), thick slough
(Figure 2), dehydrated slough (Figure 3), and strongly adhered
dry necrotic tissue/eschar (Figure 4).
The presence of devitalised tissue will delay wound
healing, as it prevents the formation of granulation tissue. It
can also be a source of bacterial growth, increasing the risk
of infection (Broadus, 2013). Therefore practitioners need to
focus on removing the non-viable tissue as rapidly as possible,
but also be aware that in certain situations debridement
should be avoided. For instance, in patients affected by
peripheral arterial disease, non-viable tissue such as distal
necrosis may be intentionally left to auto-amputate (i.e. fall
off) (Figure 5). Only after adequate revascularisation should
Leanne Atkin is Lecturer Practitioner and Vascular Nurse Specialist at
the School of Human and Health Sciences, University of Huddersfield
and Mid Yorkshire NHS Trust
Accepted for publication: May 2014
Reprinted article #2.qxp_Layout 1 23/09/2014 10:40 Page 1
© 2014 MA Healthcar
e Ltd
This article is reprinted from the British Journal of Nursing, 2014 (Tissue Viability Supplement), Vol 23, No 12
debridement be encouraged and this should only be done by
the specialist team.
Dostları ilə paylaş: |