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Hemostatic changes in active pulmonary tuberculosis
(Ingenta Connect, 2002) Kunter, E.; Sezer, M.; Solmazgül, E.; Cerrahoğlu, K.; Bozkanat, E.; Öztürk, A.; İlvan, A.
Objective: Severe pulmonary tuberculosis (PTB) is sometimes complicated by deep vein thrombosis (DVT). We have searched for possible hemostatic disturbances that are predisposing factors for venous thrombosis in patients with PTB. Design: Coagulation and platelet function tests were studied in 45 patients with active PTB and 20 healthy control volunteers before therapy. Findings were compared with results at 30 days. Results: Analysis in patients with active PTB showed anemia, leucocytosis, thrombocytosis, elevation in plasma fibrinogen, factor VIII, plasminogen activator inhibitor 1 (PAI-1) with depressed antithrombin III (AT III) and protein C (PC) levels. On the 30th day of treatment, anemia, leucocytosis and thrombocytosis were improved. Fibrinogen and factor VIII levels had decreased to normal levels, PC and AT III levels had increased to normal levels, and there was no difference in PAI-1 levels. We found no activated protein C resistance. Platelet aggregation studies demonstrated increased platelet activation. However, DVT was not detected in patients during the follow-up period. Conclusion: Decreased AT III, PC and elevated plasma fibrinogen levels and increased platelet aggregation appear to induce a hypercoagulable state seen in PTB and improve with treatment.