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  • Title: Tissue and urinary haemosiderin in chronic leg ulcers.
    Author: Tan J, Smith A, Abisi S, Eastham D, Burnand KG.
    Journal: Eur J Vasc Endovasc Surg; 2007 Sep; 34(3):355-60. PubMed ID: 17601755.
    Abstract:
    OBJECTIVE: The aim of this study was to assess the relationship between urinary and tissue haemosiderin in chronic leg ulcers, and its value as a diagnostic test for venous ulceration. METHODS: 45 patients with chronic leg ulcers were recruited to the study (24 venous, 6 ischaemic, 6 lymphoedematous, 5 rheumatoid and 4 sickle cell). Punch biopsy of the ulcer edge was taken and early morning urine samples were collected. Positive Prussian-blue urinary haemosiderin granules were measured with a haemocytometer following Perls' staining. The percentage area of histological section staining positively with Perls' was measured using image analysis. RESULTS: 84 urine samples and 46 ulcer biopsies were collected. Urinary haemosiderin was present in 92% of venous ulcer patients, but was absent in the ischaemic ulcer patients (p<0.0001). Significantly more urinary haemosiderin granules were detected in venous ulcer patients compared with patients who had lymphoedema (p<0.05). Tissue haemosiderin was detected in all ulcer types investigated. No correlation was found between the amounts of haemosiderin deposited in the tissue and the amount found in urine (r(2)=0.06). CONCLUSIONS: Haemosiderin is present in the urine of most patients with venous ulcers but not in ischaemia ulcers.
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