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PubMed2006

Calciphylaxis.

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PubMed2006

Successful treatment of a patient with severe calcific uremic arteriolopathy (calciphylaxis) by etidronate disodium.

A 59-year-old woman with a 10-year history of hemodialysis was admitted to our hospital for painful skin ulcers on her right thigh, right calf, and left upper arm. A whole-body plain computed tomographic scan showed diffuse calcification of the uterus and marked calcification of the mitral valve. Skin biopsy specimens from the left thigh showed calcium deposition in numerous small blood vessels in the dermis and fat, leading to a diagnosis of calcific uremic arteriolopathy (CUA). Despite antibiotic therapy and aggressive wound care for 2 months, the skin ulcers enlarged and the patient's general condition worsened. Surprisingly, oral administration of etidronate disodium (200 mg/d) strikingly improved the focal infection and decreased the size of the skin ulcers within several days. She was discharged from the hospital 2 months later, when epithelialization of the ulcers was almost complete. We report a case of CUA that was improved dramatically by treatment with etidronate. Etidronate therapy should be considered for refractory CUA.

Bone Density Conservation Agents↗
PubMed1995

[Calciphylaxis].

HISTORY AND CLINICAL FINDINGS: Acute, zigzag-shaped livid skin markings developed on both thighs of a 55-year-old woman who had been on dialysis for 6 years. Within 7 days these areas increased in size to about 10 cm in diameter and contained central dry and painful necroses. On legs, lower arms and hands hard subcutaneous nodules were palpable with a diameter up to 3 mm. For many years the phosphate and parathormone levels, as well as alkaline phosphatase activity had been raised. The patient had often failed to follow treatment recommendations. TESTS: There were increased serum concentrations of calcium (2.8 mmol/l) and phosphate (1.78 mmol/l). The calcium phosphate ion product was 4.98 (mmol/l)2. Furthermore, there were raised levels of alkaline phosphatase (315 U/l) and parathormone (1076 ng/l, normal: 10-65). X-ray film of the hands showed soft tissue and arterial calcifications, while histological examination of a deep skin biopsy revealed calcium phosphate emboli of the main vessels. TREATMENT AND COURSE: Excision of the cutaneous necroses was followed by parathyroidectomy at which only three parathyroid glands were identified and removed. The parathormone level fell postoperatively, but rose again after 4 weeks. The fourth parathyroid gland was then found and removed, after which the parathormone level fell below measurable levels. The skin ulcers healed completely 4 weeks after the second operation.

Calciphylaxis↗