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  • Title: Calciphylaxis: calcific uraemic arteriolopathy--a case study.
    Author: Byrne H, Lloyd S.
    Journal: J Ren Care; 2007; 33(2):74-7. PubMed ID: 17702510.
    Abstract:
    Having worked in nephrology for more than 20 years, and never encountering this condition before, we came across three patients who had been diagnosed with calciphylaxis in the space of 12 months. This condition is also known as calcific uraemic arteriolopathy and is a syndrome of medical calcification of the small arteries, which leads to painful ischaemia of the surrounding subcubitis and skin (1). Prevalence of 1-4% has been estimated in various haemodialysis populations. Also 1% per year in dialysis patients has also been suggested (3). The mortality rate for distal lesions is 23%, whilst the mortality for proximal lesions is 63% (4). The pathogenesis of this condition remains uncertain. However, vascular calcium deposition is thought to be important, and raised serum phosphate levels were associated with a substantially increased risk of calciphylaxis. Although PTH levels were high, plasma PTH was not consistently higher in patients with calciphylaxis than controls (5). The important aspect of the condition for the patients is the sheer pain and distress suffered, as well as the high mortality rate. Therefore, the implications for nurses are early detection, to allow speedy treatment to take place and involvement of the multidisciplinary team to enhance care and provide as much support as possible, thus facilitating optimal outcome and comfort.
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