[Calciphylaxis]

Area of Science:

• Nephrology
• Dermatology
• Vascular Medicine

Background:

• Calciphylaxis is a rare and severe vasculopathy affecting patients with end-stage renal disease.
• It is characterized by calcification and thrombosis in small blood vessels, leading to skin necrosis and high mortality.
• Diagnosis typically relies on skin biopsy, with no specific laboratory markers.

Observation:

• Patients often present with painful, purplish skin mottling, resembling livedo reticularis, primarily on the extremities.
• Lesions progress to non-healing ulcers and bedsores, significantly impacting patient quality of life.
• Two clinical cases illustrating the presentation and management of calciphylaxis are presented.

Findings:

• Skin biopsy confirms calcification and fibroplasia in the panicular arterioles.
• While standard care includes wound management and antibiotics, sodium thiosulfate is explored for its antioxidant and chelating properties.
• The reported cases highlight the clinical course and potential therapeutic avenues.

Implications:

• Early recognition and diagnosis of calciphylaxis are crucial for timely intervention.
• Sodium thiosulfate represents a potential therapeutic agent for calciphylaxis, warranting further investigation.
• Improved management strategies are needed to reduce the high mortality associated with this condition.