ABSTRACT
von Willebrand disease is a common inherited bleeding disorder and the problem is undefined in developing countries due to limitation of its diagnostic facilities. The aim of the study was to diagnose vWD in patients with history of muco - cutaneous bleeding and characterization into its variants by multimeric analysis. 224 patients presenting with history of muco - cutaneous bleeding were selected. In all patients, platelet count, BT, PT, APTT, PF3 availability, clot solubility and factor VIII assay were done. Diagnosis of vWD was confirmed by RIPA, vWF: Ag, and vWF: RCo and its sub-characterization was done by multimeric analysis. 64 patients were diagnosed to have vWD. Of these, 21.9% were of type 1 vWD, 43.7% type 2 vWD, 1.6% acquired vWD and 32.8% type 3 vWD. By multimeric analysis, 2 patients had supranormal HMW multimers and two patients had normal distribution of vWF multimers were diagnosed as type 2M 'Vicenza'; and type 2M vWD respectively. It is concluded, that vWD is not an uncommon condition amongst Indian population.
Subject(s)
Adolescent , Adult , Bleeding Time/methods , Child , Child, Preschool , Factor VIII/analysis , Female , Humans , India/epidemiology , Infant , Male , Middle Aged , Partial Thromboplastin Time/methods , Platelet Aggregation , Platelet Factor 3/analysis , von Willebrand Diseases/classification , von Willebrand Factor/analysisABSTRACT
Hemostatic profile was studied in 25 full term non-asphyxiated neonates with blood culture-proven septicemia. Observations were compared with that of 25 healthy, non-asphyxiated, full term, birth weight and age-matched controls. Detailed coagulation tests & platelet studies were done in each of the 50 neonates by standard techniques. Hemostatic defects occurred in 96% of the septicemic neonates and none in the control group irrespective of the occurrence of clinical bleeding. The coagulation tests were deranged in 805 and platelet function tests in 92% of patients. These tests were significantly deranged in septicemic neonates as compared to control group.
Subject(s)
Anti-Bacterial Agents/therapeutic use , Bacteremia/blood , Blood Coagulation , Blood Platelets/physiology , Female , Humans , Infant, Newborn , Male , Partial Thromboplastin Time , Platelet Factor 3/analysis , Platelet Function Tests , Thrombin TimeABSTRACT
Primary diseases of platelet function include Glanzmann's thrombasthenia, hereditary platelet release abnormalities (storage pool disease and release defect), Bernard-Soulier giant platelet syndrome, and platelet factor 3 defects. Qualitative defects of platelets are associated with many diseases, notably of the liver and kidney, and with the use of many drugs, particularly aspirin.