[Hemorheological, hemocoagulation and photoplethysmographic changes induced by the administration of pentoxifylline in patients with Raynaud's disease].

: 1200 mg/day per os of Pentoxyphyllin administered for 60 day brought about an improvement in symptomatology and photoplethysmographic readouts under base conditions and following the cooling test in 7 out of 11 females suffering from Raynaud's disease. These results may be explained by an improved microcirculation flow resulting from increased erythrocyte filterability and a decrease in fibrinogenemia .