End-of-Life Wounds: Common Types and Terminology
End-of-life wounds encompass several distinct entities including Kennedy Terminal Ulcers (KTU), Trombley-Brennan Terminal Tissue Injuries, Skin Changes at Life's End (SCALE), and end-stage skin failure—all representing unavoidable skin breakdown that occurs in dying patients despite optimal preventive care. 1, 2, 3
Primary Categories of End-of-Life Wounds
1. Kennedy Terminal Ulcers (KTU)
These are the most recognized end-of-life wounds, appearing typically in the final 6 weeks of life. They present as sudden-onset skin injuries that rapidly progress from superficial ulcers to full-thickness lesions, most commonly on the sacrum, coccyx, and lower extremities (heels and toes). 1, 4, 3
2. Skin Changes at Life's End (SCALE)
This term describes the broader spectrum of skin failure occurring as part of the dying process, encompassing various manifestations of skin breakdown related to hemodynamic changes and insufficient tissue perfusion. 2, 3
3. Trombley-Brennan Terminal Tissue Injuries
Another recognized terminology for unavoidable skin injuries at end of life, though less commonly used in clinical practice. 1, 2
4. End-Stage Skin Failure
This describes the pathophysiological process where skin tissue fails due to disease progression, aging, and multiorgan failure in dying patients. 1, 4
Critical Distinguishing Features from Pressure Injuries
A major clinical pitfall is misdiagnosing these end-of-life wounds as preventable pressure injuries, which leads to inappropriate aggressive treatment and causes unnecessary distress to patients and families. 4, 3, 5 The key distinction is that end-of-life wounds are unavoidable—they develop despite comprehensive pressure-relieving interventions and optimal care. 3, 5
Pathophysiology
End-of-life wounds result from:
- Hemodynamic instability and circulatory failure
- Insufficient perfusion of skin tissue
- Multiorgan system failure
- Progressive disease processes
- Age-related skin changes
Additional Wound Types in Palliative Populations
Beyond terminal ulcers, palliative and end-of-life patients commonly develop:
Chronic Wounds
- Pressure ulcers (Stage III and IV with exposed bone, muscle, or tendon) 6
- Venous and arterial leg ulcers
- Diabetic ulcers
- Fungating malignant wounds (from tumor invasion through skin)
Malignant Wounds
These occur when tumors invade blood vessels and skin, particularly in areas like groins or axillae, creating risk for catastrophic bleeding. Management focuses on controlling exudate, odor, and bleeding rather than healing. 7
Management Priorities: Comfort Over Cure
The fundamental principle is that wound care goals shift from healing to symptom management and quality of life preservation. 8, 3, 9 Aggressive healing interventions become unrealistic and burdensome at end of life.
Key Symptom Management Strategies:
- Pain control: Topical morphine gel applied directly to wounds, opioid patches, or subcutaneous delivery via syringe driver 7
- Exudate management: Low-air-loss mattresses, absorbent dressings to prevent maceration 7
- Odor control: Charcoal, honey, or silver dressings; environmental deodorizers 7
- Bleeding prevention: Dark towels available for catastrophic bleeds; fast-acting benzodiazepines (midazolam) for anxiety 7
- Psychological support: Essential for patients and families throughout the dying process 7, 10
Clinical Assessment Approach
When evaluating wounds in dying patients:
- Determine prognosis and goals of care first 9
- Assess for skin blanching to differentiate pressure response 1
- Document wound location (sacrum, coccyx, heels, toes most common for KTU) 1
- Recognize timing (appearance in final weeks of life suggests terminal ulcer) 4, 3
- Accept unavoidability when comprehensive prevention measures are already in place 3, 5
Common Pitfall to Avoid
Do not pursue aggressive wound healing protocols when a patient is actively dying. This causes unnecessary suffering and diverts focus from comfort care. 8, 3 Recognize that some wounds at end of life are manifestations of the dying process itself, not failures of nursing care. 5
Palliative Care Integration
Palliative care teams should be involved early in wound management for end-of-life patients, as they have specialized training in symptom management, communication about prognosis, and supporting families through difficult decisions. 10 Trauma and acute care surgeons often lack this training and should not manage these complex situations alone. 10
The priority remains preserving dignity, comfort, and quality of life rather than achieving wound closure when death is imminent. 7, 10, 3