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  • Title: Nifedipine and Raynaud's phenomenon associated with connective tissue diseases.
    Author: Kahan A, Weber S, Amor B, Menkes CJ, Hodara M, Degeorges M.
    Journal: Int Angiol; 1985; 4(2):221-3. PubMed ID: 3831143.
    Abstract:
    We have evaluated the therapeutic effect of the calcium-channel blocking agent nifedipine in Raynaud's phenomenon associated with connective tissue diseases and in idiopathic digital vasospasm. Thirty patients were included in this study: Raynaud's phenomenon was associated with progressive systemic sclerosis (PSS) in ten patients, systemic lupus erythematosus (SLE) in five and rheumatoid arthritis (RA) in three; it was idiopathic (I) in twelve patients. Each patient received, in a double-blind manner and random order, on two consecutive weeks, nifedipine (20 mg three times daily) and placebo. Nifedipine proved to be effective: the mean number of digital vasospastic attacks per week decreased from 20.30 to 5.83 (p less than 0.01). The results in the SLE and RA groups were similar and were pooled. The improvement (in percent decrease) was better in the idiopathic group (90.95) than in the SLE and RA group (78.63, p less than 0.02) and the PSS group (64.02, p less than 0.01).
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