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        Propranolol Reduces Thrombocytopenia In Cirrhosis

        A DGReview of :"Propranolol ameliorates thrombocytopenia in patients with cirrhosis"
        Journal of Gastroenterology

        03/21/2002
        By Mark Greener


        Propranolol counters thrombocytopenia in patients with cirrhosis by altering splenic hemodynamics.

        Propranolol contracts arteries supplying the spleen so, in theory at least, it potentially modifies hypersplenic symptoms, such as thrombocytopenia.

        To test this hypothesis, researchers from Kurume University School of Medicine, and Iwao Hospital, Hita, Japan, enrolled 19 patients with cirrhosis and thrombocytopenia. Ten patients received propranolol and the remainder placebo. The propranolol dose reduced heart rate by between 20 and 25 percent.

        Placebo did not significantly alter either splenic artery hemodynamics or platelet count. In contrast, propranolol increased both intra-splenic artery pulsatility index and platelet count. The average intra-splenic artery pulsatility index increased from 1.10 to 1.24 in the propranolol arm. Propranolol also increased the average platelet count from 4.5 to 6.1 x 104 per mm3. Both these differences reached statistical significance.

        Changes in both the extrasplenic artery pulsatility index and intrasplenic artery pulsatility index correlated with the alteration in platelet count. On the other hand, neither propranolol nor placebo altered platelet-associated immunoglobulin G levels.
        Journal of Gastroenterology 2002;37:112-118. "Propranolol ameliorates thrombocytopenia in patients with cirrhosis"

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