neuropathic ulcers Flashcards
caused by
Often caused by lack of sensation so often no wound related pain (however may have neuropathic pain in the area)
how do neuropathic ulcers look
Round, punched out lesion rimmed in callous; light drainage; light pink wound bed, may have some necrotic tissue
*friable
*can be completely covered by callous
if ulcer has callous,
usually neuropathic ulcer
neuropathic ulcer periwound looks like
Key to this type of wound is the callous that build up due to pressure
Toenails may be thickened due to fungal infection
May have edema if they have autonomic neuropathy (causes vasodilation)
Pulses may be present but microvascular changes are common
May be warm if there is vasodilation but may be cool if there is microvascular changes
risk factors for type II DM
> 85%body weight for age and sex
120% ideal weight
Having close relative with DM
Being a high-risk ethnic origin
Having a mother with history of gestational DM
neuropathic ulcer: autonomic neuropathy
***callus formation, and blood flow
Decreased sweating
Systemic effects: tachycardia, exercise intolerance, hypotension, gastroparesis, & sexual dysfunction
osteoarthropathy
Uncontrolled vasodilation caused increased blood flow to bone->leeches Calcium-> predisposes for fracture=>charcot foot
what happens to rate of collagen synthesis, phagocytosis, angiogenesis and fibroblast proliferation and tensile strength
with neuropathic ulcers?
decreased rate of everything due to hyperglycemia
What is a normal A1C
less than 5.7%
What is prediabetes A1C
5.7-6.4%
what is diabetes A1C
over 6.4%
ways of assessment of circulation
Capillary refill, doppler US, ABI, TBI, arteriography or transcutaneous O2 measurement
how to perform semmes weinstein test
Use Semmes-Weinstein monofilament to test for protective sensation 5.07 (10 g); test at 1st, 3rd, and 5th digits, 1st, 3rd, and 5th met heads, medial and lateral midfoot and calcaneus; apply enough pressure to bend the wire and test each area 3 times
how should you perform local wound care?
-callus must be removed
wound edge made even with base if possible
-moisturize periwound
-protect wound with offloading devices
*EDUCATE!!!!
what is the gold standard of care for neuropathic ulcers?
total contact cast TCC