Skin problems in chronic kidney disease

Area of Science:

• Nephrology
• Dermatology
• Internal Medicine

Background:

• Skin disorders are common and debilitating complications in patients with chronic kidney disease (CKD).
• These conditions significantly impair quality of life, affecting both mental and physical well-being.
• Uremic pruritus and calcific uremic arteriolopathy are key examples of CKD-associated dermatological issues.

Purpose of the Study:

• To review the pathogenesis and current treatment strategies for major skin disorders in CKD patients.
• To highlight the role of inflammation and the opioidergic system in uremic pruritus.
• To discuss therapeutic approaches for calcific uremic arteriolopathy and preventive measures for nephrogenic systemic fibrosis.

Main Methods:

• Literature review of studies on skin disorders in chronic kidney disease.
• Analysis of the pathophysiology of uremic pruritus, including inflammatory markers and the opioidergic system.
• Evaluation of treatment options for uremic pruritus, calcific uremic arteriolopathy, and nephrogenic systemic fibrosis.

Main Results:

• Uremic pruritus is an inflammatory systemic disease linked to increased inflammation biomarkers and potential opioidergic system imbalance.
• Calcific uremic arteriolopathy results from an imbalance in vascular calcification regulators due to uremic inflammation.
• Nephrogenic systemic fibrosis is a severe complication of gadolinium contrast agents in advanced CKD, with prevention being key.

Conclusions:

• Effective management of uremic pruritus involves treatments like nalfurafine, while bisphosphonates and sodium thiosulfate are promising for calcific uremic arteriolopathy.
• Preventing nephrogenic systemic fibrosis requires careful selection of contrast agents and consideration of patient's CKD stage.
• Further research is needed to establish optimal management and potential therapies for these challenging conditions.