Renal function is mostly preserved in patients with systemic sclerosis.

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title = "Renal function is mostly preserved in patients with systemic sclerosis.",
abstract = "Objective: Chronic renal disease other than scleroderma renal crisis (SRC) is not well documented in systemic sclerosis (SSc). We examined the occurrence of decreased glomerular filtration rate (GFR) in a large consecutive SSc cohort and analysed whether it was related to SSc or could be related to other causes. Methods: During 1983-2004 GFR was measured by chromium-51-ethylenediaminetetraacetic acid (51Cr-EDTA) or iohexol clearance in 461 patients with SSc according to the American College of Rheumatology (ACR) criteria [356 with limited cutaneous SSc (lcSSc) and 105 with diffuse cutaneous SSc (dcSSc)] and the measurements were repeated once a year. Decreased GFR was defined as GFR<70% of the age-adjusted values. SRC was diagnosed in 4/360 lcSSc (1.1%) and in 10/115 dcSSc (8.7%). These patients were excluded from further analyses. Results: At the latest follow-up at a median duration of 7.7 (range 0.5-54) years, decreased GFR was found in 39 lcSSc (11%) and nine (8.6%) dcSSc patients. Among the 48 SSc patients with GFR<70p% (percentage of predicted value = p%), hypertension was diagnosed in 29 (60%) and cardiac involvement in 25 (52%). Different nephropathies were found in eight (19%) patients by renal biopsy. Fifteen patients with decreased GFR were followed up for >/=4 years and no progress was seen in 11/15. Conclusions: A minority of patients with SSc develop renal dysfunction other than SRC. Decreased GFR was associated with other manifestations such as hypertension and cardiac involvement indicating possible pre-renal causes.",
author = "Agneta Scheja and I Bartosik and Dirk Wuttge and Roger Hesselstrand",
year = "2009",
doi = "10.1080/03009740802629424",
language = "English",
volume = "38",
pages = "295--298",
journal = "Scandinavian Journal of Rheumatology",
issn = "1502-7732",
publisher = "Taylor & Francis",