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Criteria:\n\n* Comfort care or withdrawal of care planned\n* Neonatal alloimmune thrombocytopenia or suspected\u002Fconfirmed congenital platelet or bleeding disorder\n* Receipt of platelet transfusion\n* No receipt of Vitamin K\n* Parents\u002Fguardian decline consent",true,"ALL","1 Hour","48 Hours",{"count":349,"type":350},2433,"ESTIMATED","INTERVENTIONAL",[353],"NA","The objective of the NeoPlaTT trial is to test whether, among extremely preterm infants born at 23 0\u002F7 to 26 6\u002F7 weeks' gestation, a lower platelet transfusion threshold, compared to a higher threshold, improves survival without major or severe bleeding up to 40 0\u002F7 weeks' postmenstrual age (PMA).",[356,357,358,359,360,361,362],"Thrombocytopenia","Neonatal","Platelet Transfusion","Infant, Newborn, Diseases","Infant, Extremely Low Birth Weight","Infant, Small for Gestational Age","Thrombosis",[364,365,366],"platelet 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