Wound care notes by Colin Stevenson
(notes based on talks by Dr. I. Bayoumi, PBSG module on venous stasis ulcers)
Dry wound
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Intrasite gel (15 g tube); cover with Telfa, for example
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Duoderm: if no infection
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these products promote debridement
Wet wound
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Foam
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Allevyn-pink side up
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Biatain
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Mepilex-good if painful wound
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Calcium alginate (Kaltostat)-no lateral wicking; has hemostatic qualities
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Hydrofibre (Aquacel)-when wet, becomes a gel that peels off easily; can be layered
Edema
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Edema predisposes to skin breakdown
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Elevate legs above level of heart 1.5 h tid (even 1 h bid might help)
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Elevating legs to below level of heart may stabilize edema, but would not likely reduce it
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Can use elastic or inelastic systems to decrease edema
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After edema is decreased and any wound healing is complete, can start compression stockings
Elastic systems
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Profore elastic bandages (better if pt is not very mobile); Surepress is another brand
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used to decrease edema, perhaps 1-2 wks
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Check ABI first
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ABI 0.6-0.8 : can use 3 layer (approx 25-30 mm Hg)
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Normal ABI: can use 4 layer (approx 40 mm Hg)
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Apply padding to shin, malleoli before applying these systems
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If elastic system causes pain, remove
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Change daily x 3 d, then 2-3 x /wk until wound healed (or, if no wound, until edema controlled)
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Apply from base of toes to base of knee
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CCAC can apply these
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Just before nurse arrives, pt could take off bandages and wash with hand-held shower
Inelastic systems
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Short stretch Comprilon (about 40 mm Hg)
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Check for normal ABI first
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Patient should be ambulatory
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CCAC can apply these
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wrap limb x 1-2 wks to decrease edema
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when edema decreased, can fit for stockings
Compression Stockings
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Use stockings AFTER edema has decreased and any ulcer has healed
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Check ABI first (in interim, could use tensors)
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If ABI >0.8, can use high compression stockings
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if ABI 0.5-0.8, can use low compression stockings
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If ABI <0.5, don’t use stockings; also, spontaneous wound closure may not be possible
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Strengths
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Class 1: 15-20 mm Hg; over-the-counter; example: maternal support stockings (for pregnancy)
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Class 2 : 25-30: the minimum suggested for someone with edema
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Class 3: 45-50 mm Hg
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Below-knee stockings are sufficient; tighter at foot, lessening pressure up to knee
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Go for fitting first thing in the morning when edema will be less
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seek pharmacy where someone is qualified to fit stockings
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Cost: about $40-100 per pair (Dell East Mountain $55, for example)
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Stockings should be worn all day; they last 4-6 months
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Wash stockings out each night, then hang to dry (prescribe 2 pairs at once)
Infection
a) Subclinical infection:
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Poor quality granulation tissue
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Friable/grey-violet dusky colour
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Increased pain
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Increased discharge
For subclinical infection, could start topical abx; if improves over 2-3 wk, then continue until better
If not improving, switch to po abx
Topical antibiotics (for subclinical infection, not for infection prophylaxis)
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Flamazine: perhaps less resistance; at least daily dressing change (apply bid, for example); not ideal if wet wound; not if sulfa allergy; using a silver-based dressing may be less expensive
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Bactroban—better spectrum of coverage than polysporin; useful for impetigo
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Polysporin
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Fucidin: potential sensitizer/contact reaction, esp in those with venous insufficiency ulcers
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Iodosorb
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Betadine for non-healable wounds (ABI < 0.5)
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Metronidazole gel: covers anaerobes; useful if odour
b) Frank infection/cellulitis
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Non-diabetic ulcer: Cephalexin (Keflex) 250 qid
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Sacral ulcer: cipro 500 bid
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DM foot ulcer
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cipro 500 bid + Clinda 300 tid x 2 wk (this combo also covers pseudomonas) or
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Septra + clinda or
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Metro + (keflex or Septra) or
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clavulin
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Taking a wound swab:
Try to sample from a clean base; use zigzag motion with swab
Other wound care notes
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Mechanical debridement of necrotic tissue is important (intrasite or duoderm allow some debridement as an alternative)
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Infected or very wet wound: mesalt
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Avoid wet-to-dry dressings
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usually sufficient to change dressings q 2-3 d unless excessive drainage
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Every pt with DM + neuropathy should see podiatrist or chiropodist for foot care
Arterial disease ulcer: distal, painful
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Mgt: tensor okay; NOT compression stockings
Acute stasis dermatitis: bilateral, crusting, can be red, warm
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mgt: elevate, topical steroid