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Title: The response of skin perfusion and of rheological and immunological variables to intravenous prostanoid administration in Raynaud's phenomenon secondary to collagenosis. Author: Drinda S, Neumann T, Pöhlmann G, Vogelsang H, Stein G, Wolf G, Hein G. Journal: Vasa; 2005 Nov; 34(4):243-9. PubMed ID: 16363279. Abstract: BACKGROUND: Prostanoids are used in the treatment of Raynaud's phenomenon and acral perfusion disorders secondary to collagenosis. In subjective terms, intravenous administration of these agents produces success in more than 50% of patients. The therapeutic outcome of clinical administration of alprostadil or iloprost may vary from individual to individual. PATIENTS AND METHODS: The following variables were analysed in a cross-over study in 27 patients with collagenosis and Raynaud's phenomenon: plasma viscosity and erythrocyte aggregation (rheological variables), partial pressure of oxygen and laser Doppler flowmetry in the finger region, and lymphocyte phenotyping and interleukin (IL) determinations (immunological variables). RESULTS: Laser Doppler flowmetry revealed significant differences between patients with secondary Raynaud's phenomenon and a control group of 25 healthy subjects. Laser Doppler readings did not change significantly as a result of the treatments. Therapy with iloprost produced a reduction in IL-1beta, L-selectin (CD 62 L) and IL-6. CONCLUSION: The change in immunological variables due to iloprost may explain the long-term effects of prostaglandins in the treatment of Raynaud's phenomenon. From our results it is not possible to infer any preference for iloprost or alprostadil.[Abstract] [Full Text] [Related] [New Search]