View clinical trials related to Platelet Transfusion.
Filter by:Rationale: Preterm neonates with low platelet counts receive prophylactic platelet transfusions with the aim to prevent bleeding. However, it is not clear in which cases platelet transfusions reduce the risk of bleeding or whether they do more harm than good. A large, randomized trial showed that the higher platelet count threshold for transfusion was associated with a higher rate of death and major bleeding, which suggests that platelet transfusions caused harm in neonates. To gain insight into the risk/benefits of platelet transfusions, the investigators will validate a recently developed dynamic prediction model for major bleeding in multiple NICUs in Europe and investigate the effects of prophylactic platelet transfusions on the risks of bleeding and potential transfusion-associated adverse events. This model could then be used in future studies to define enhanced indications for transfusion, with the ultimate goal to prevent transfusion-associated harm in this vulnerable population. Objectives: 1. Validation of the existing dynamic prediction model in an international cohort of preterm neonates with severe thrombocytopenia (platelet count <50x10^9/L) admitted to a NICU. 2. Model amendment to enable prediction of bleeding risks under various hypothetical platelet transfusion strategies in preterm neonates with severe thrombocytopenia. 3. To examine whether prophylactic platelet transfusions are causally associated with the occurrence of bronchopulmonary dysplasia (BPD), necrotizing enterocolitis (NEC), proven sepsis, retinopathy of prematurity (ROP), major bleeding, and mortality. Study design: Multicenter international retrospective cohort study. Study population: Neonates with a gestational age <34 weeks and a platelet count <50x10^9/L, admitted to a NICU between January 1st 2017 and January 1st 2022. Main study endpoints: Major bleeding, BPD, NEC, proven sepsis, ROP and mortality. Nature and extent of the burden and risks associated with participation, benefit, and group relatedness: Not applicable, as this is a retrospective study.
Multicenter case cohort study investigating clinical risk factors for clinically relevant bleeding in hemato-oncology patients, as well as bleeding related biomarkers during intensive treatment.
Between 10 and 15% of critically ill patients require platelet transfusion within their intensive care unit (ICU). Platelets (PLT) are given to prevent bleeding in thrombocytopenic patients or to treat bleeding as part of massive transfusion or in bleeding thrombocytopenic patients. International and local guidelines (American Association of Blood Banks-AABB) are mainly based on experts' opinion. The efficacy of PLT transfusion in the ICU setting remains poorly studied and unknown and the administration of PLT may be associated with adverse effects including an increased risk of hospital acquired infection. Finally, the short PLT shelve-life may be responsible for inventory issues. Altogether, this makes very important to improve the evidence that support PLT transfusion in ICU patients. This is a multicentre prospective observational study that aims to first determine PLT transfusion efficacy and to identify the parameters associated with transfusion efficacy and to analyse the compliance with international (and local) guidelines of PLT transfusion in ICU patients.
This is a platelet transfusion study. The purpose of this study is to measure the life span and quality of platelets stored in a refrigerator. Participants will give platelets by apheresis. Platelets will be stored for 3 -20 days. A small portion of the subject's own stored platelets will be tagged with a radioactive isotope and infused back into the participant. This will enable us to track how many transfused platelets survive after storage in the refrigerator.