Platelet function tests in thalassemic children.
Platelet changes in thalassemia included prolongation of bleeding time (30%), thrombocytosis (29%), decreased platelet retention (79%), and normal PF3 release. Platelet aggregation was found to be hyperaggregation in 50%, normal in 22%, and hypoaggregation in 28% of the studied patients. Platelet changes in thalassemia can be hyper-, normal, or hypofunction. The changes are likely to be related to many factors, particularly to the progress of the disease. Platelet hypoaggregation may lead to a bleeding problem. Platelet hyperaggregation and thrombocytosis were prominent in the splenectomized patients and/or the severely anemic group; antiplatelet drugs may be indicated in these patients.
Department of Pediatrics, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
P
P
Isarangkura
P
P
Pintadit
P
P
Hathirat
W
W
Sasanakul
D000293:Adolescent; D001241:Aspirin / Q000627:therapeutic use; D001792:Blood Platelets / Q000502:physiology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D010974:Platelet Aggregation / Q000187:drug effects; D010976:Platelet Count; D010979:Platelet Function Tests; D013789:Thalassemia / Q000097:blood* / Q000188:drug therapy
D001241:Aspirin