[Physiopathology of bedsores]

Area of Science:

• Biomedical Engineering
• Dermatology
• Gerontology

Context:

• Decubitus ulcers (pressure sores) are a significant clinical challenge, primarily caused by sustained pressure.
• Intrinsic factors like immobility, advanced age, comorbidities, poor nutrition, and smoking exacerbate risk.
• External forces such as shearing, friction, and excessive moisture also contribute to pathogenesis.

Purpose:

• To elucidate the primary pathogenic mechanisms and key risk factors in the development of decubitus ulcers.
• To highlight the substantial morbidity and mortality associated with pressure sore complications.
• To emphasize the critical role of early identification and risk stratification in prevention strategies.

Summary:

• Pressure is the principal etiological factor in decubitus ulcer formation, compounded by shearing forces, friction, and moisture.
• Immobility, age-related diseases, nutritional deficits, certain medications, and smoking are significant intrinsic risk factors.
• The therapeutic management of pressure ulcers is contingent upon their clinical grading.

Impact:

• Effective prevention strategies, centered on identifying high-risk individuals, are crucial for mitigating the severe consequences of pressure sores.
• Understanding these factors allows for targeted interventions to reduce patient morbidity and mortality.
• This knowledge supports the development of evidence-based clinical guidelines for pressure ulcer management.