Can I pack a stage III pressure injury with iodine‑impregnated ribbon gauze?

Do Not Use Iodine Ribbon Gauze for Packing Stage III Pressure Injuries

You should not pack a stage III pressure injury with iodine-impregnated ribbon gauze for the purpose of wound healing. The most recent and highest-quality evidence from the 2024 IWGDF guidelines provides a strong recommendation against using topical antiseptic or antimicrobial dressings, including iodine-impregnated products, for wound healing 1.

Evidence Against Iodine Use

The 2024 IWGDF guidelines (the most recent and authoritative source) explicitly state: "Do not use topical antiseptic or antimicrobial dressings for wound healing of diabetes-related foot ulcers (Strong; Moderate)" 1. While this guideline specifically addresses diabetic foot ulcers, the underlying principles apply broadly to chronic wounds including pressure injuries.

Key Findings on Iodine Dressings:

• Three studies on iodine-impregnated dressings showed no benefit for wound healing 1
• The only study with proper blinding (reducing bias) found no difference in healing outcomes when compared with standard care 1
• A large multicenter RCT with low risk of bias compared iodine-impregnated dressing with non-adherent dressing and found no difference in wound healing or infection prevention 2
• The evidence shows either no benefit or inconsistent results with small effect sizes and low certainty 1

What You Should Use Instead

Select dressings based on:

1. Exudate control - Match absorbency to wound drainage
2. Patient comfort - Minimize pain and trauma during changes
3. Cost-effectiveness - Use the least expensive option that meets clinical needs 2

Appropriate alternatives include:

• Basic contact dressings (low-adherence dressings, simple absorbent dressings)
• Advanced dressings (alginate, hydrogel, films, hydrocolloid, foam) based on wound characteristics 2
• For packing: plain gauze moistened with saline is acceptable and evidence-based

Critical Safety Concerns with Iodine Packing

While the primary issue is lack of efficacy, there are documented safety risks:

• Systemic iodine absorption can occur from wound packing, particularly in deep wounds 3
• Reported complications include renal failure, electrolyte disturbances, thyroid dysfunction, altered mental status, and seizures 4
• One case report documented life-threatening cardiovascular collapse with severe metabolic acidosis from iodine absorption during wound packing 3

Clinical Algorithm for Stage III Pressure Injury Management

Instead of iodine packing, follow this approach:

1. Debride necrotic tissue - Remove all devitalized tissue to expose viable wound bed
2. Control infection if present - Use systemic antibiotics when indicated, not topical antimicrobials
3. Select appropriate dressing:
   • Heavy exudate: foam or alginate dressings
   • Moderate exudate: hydrocolloid or hydrofiber
   • Light exudate: hydrogel or thin film
4. Ensure offloading - Pressure redistribution is essential
5. Optimize nutrition and comorbidities - Address underlying factors affecting healing

Common Pitfall to Avoid

The widespread historical use of iodine products creates a false sense of their effectiveness. The 2000 survey found many nurses still using povidone iodine and gauze packing despite these being "outdated practices" 5. Do not confuse antiseptic properties with wound healing promotion - while iodine has antimicrobial activity, this does not translate to improved healing outcomes in chronic wounds 1, 6, 7.

The evidence is clear and consistent across multiple high-quality guidelines: iodine-impregnated dressings offer no advantage for wound healing and should not be used for this purpose 2, 1, 2, 8.