Management of Pressure Ulcers in the Medicine Department
Use hydrocolloid or foam dressings as your primary wound dressing, supplement all patients with protein or amino acids, and consider electrical stimulation as adjunctive therapy for stage 2-4 ulcers. These three interventions form the evidence-based core of pressure ulcer management according to the American College of Physicians 1.
Core Treatment Algorithm
1. Nutritional Support (First-Line)
Provide protein or amino acid supplementation to all patients with pressure ulcers 1. This reduces wound size, though the optimal dose remains undefined. This recommendation applies primarily to patients with nutritional deficiencies, which describes most hospitalized medicine patients with pressure ulcers. Vitamin C supplementation shows no benefit and should not be used 1.
Important caveat: The evidence for nutritional supplementation was tested alongside standard wound care (dressings and support surfaces), not as monotherapy 1.
2. Wound Dressing Selection (First-Line)
Choose hydrocolloid or foam dressings over traditional gauze 1. The evidence shows:
- Hydrocolloid dressings are superior to gauze for reducing wound size
- Hydrocolloid and foam dressings perform equivalently for complete wound healing
- Both cause similar rates of skin irritation, inflammation, and tissue maceration 1
Avoid dextranomer paste - it is inferior to other dressings for wound size reduction 1.
3. Adjunctive Electrical Stimulation (Consider for Stage 2-4)
Add electrical stimulation to standard treatment for stage 2-4 ulcers to accelerate healing 1. This has moderate-quality evidence supporting faster healing rates, though it doesn't clearly improve complete wound healing rates.
Critical warning: Frail elderly patients experience more adverse events (primarily skin irritation) with electrical stimulation 1. Weigh this risk carefully in your typical medicine department population.
4. Support Surface Selection
Use air-fluidized beds when feasible - they are the only support surface proven superior to standard hospital beds for reducing ulcer size 1. However, the ACP explicitly recommends against routine use of advanced support surfaces (alternating-air beds, low-air-loss mattresses) due to limited evidence, poorly reported harms, cost considerations, and patient immobility concerns 1.
Practical approach: Standard repositioning protocols remain essential regardless of support surface used 1.
5. Advanced Therapies for Severe Ulcers
For severe (stage 3-4) ulcers, consider platelet-derived growth factor (PDGF) - it improves healing compared to placebo in more severe ulcers 1. Evidence for other biological agents (fibroblast, nerve, macrophage suspensions) is insufficient 1.
6. Surgical Consultation
Refer for surgical evaluation in advanced-stage ulcers, recognizing that:
- Dehiscence rates range from 12-24% 1
- Dehiscence is more common when bone is removed during surgery 1
- Ischial ulcers have higher complication rates than sacral or trochanteric ulcers 1
- Rotation flaps have the lowest complication rates (12%) compared to other flap procedures 1
Evidence is insufficient to determine which surgical technique is superior 1.
What NOT to Do
Avoid these interventions lacking evidence:
- Negative-pressure wound therapy (no benefit over controls) 1
- Electromagnetic therapy (no benefit) 1
- Therapeutic ultrasound (no benefit) 1
- Laser therapy (no benefit) 1
- Hyperbaric oxygen therapy (insufficient evidence despite common use) 1
- Zinc supplementation (insufficient evidence) 1
- Maggot therapy (insufficient evidence) 1
Common Pitfalls
Using gauze dressings out of habit - hydrocolloid/foam dressings have superior evidence 1
Focusing solely on the wound - pressure ulcers in medicine patients represent a geriatric syndrome requiring management of underlying conditions (diabetes, heart failure, hypothyroidism), optimization of mobility post-acute illness, and addressing nutritional deficiencies 2
Expecting complete healing in all patients - many grade 3-4 ulcers become chronic wounds 2. When ulcers become chronic, shift goals to symptom control (odor, pain, infection prevention) and family support rather than pursuing aggressive healing interventions 2
Overlooking medication effects - if using oxandrolone (not routinely recommended), monitor liver enzymes as 32.4% develop elevations 1
Evidence Quality Context
The entire evidence base is sparse with mostly small studies, high risk of bias, and low-to-very-low certainty evidence 3. The three ACP recommendations are all "weak" grade recommendations 1. However, these represent the best available evidence, and the interventions recommended have minimal harm profiles compared to alternatives.
The 2015 ACP guideline [1-1] remains the highest-quality systematic evidence synthesis available, though newer guidelines from Japan (2023) 4 and the Wound Healing Society (2023) 5 are being developed using GRADE methodology.