Prevalence and outcomes of thrombocytopenia in a neonatal intensive care unit
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Abstract
Abstract
Background: Thrombocytopenia is a common clinical problem in neonatal intensive care units, affecting about 20 to 35% of all admitted neonates. Even most episodes are mild or moderate, severe episodes could be life-threatening or responsible for sequelae.
Objectives: The aims of this study were to describe the prevalence, clinical diagnoses, and to determine risk factors for poor prognosis of thrombocytopenia in a neonatal intensive care unit.
Methods: We carried out a retrospective study in the neonatal intensive care unit of Charles Nicolle Hospital of Tunis, a tertiary neonatal care center, over a four years period (January 2010 to December 2013). All Neonates with at least one episode of confirmed thrombocytopenia were included. Poor prognosis was defined as death or intraventricular hemorrhage ≥ grade 2 in survivors.
Results: Of 808 admitted neonates, one hundred (12.4%) had presented at least one episode of confirmed thrombocytopenia, and 12 had presented two episodes of thrombocytopenia. A total of 112 episodes of thrombocytopenia were collected. Thrombocytopenia occurred in the first 3 days of life in 74.1% of cases. Thrombocytopenia was mild in 22.3%, moderate in 36.7% and severe in 41%. Intrauterine growth restriction was the most common cause of early thrombocytopenia. Nosocomial sepsis was the most common cause of late thrombocytopenia. We found that the outcomes of thrombocytopenic neonates depend on, birth weight, gestational age, platelet count, and the underlying cause.
Conclusions: Thrombocytopenia in neonates can be life-threatening, appropriate diagnosis, preventive and therapeutic approach is necessary to prevent death or neurological impairment
Keywords:
thrombocytopenia; platelet count; newborn; outcomes.##plugins.themes.academic_pro.article.details##
References
- Castle V, Andrew M, Kelton J, Giron D, Johnston M, Carter C. Frequency and mechanism of neonatal thrombocytopenia. J Pediatr 1986; 108:749-55.
- Ferrer-Marin F, Liu ZJ, Gutti R, Sola-Visner M. Neonatal thrombocytopenia and megakaryocytopoiesis. Semin Hematol 2010; 47:281-8.
- Baer VL, Lambert DK, Henry E, Christensen RD. Severe Thrombocytopenia in the NICU. Pediatrics 2009; 124:1095-100.
- Roberts I, Stanworth S, Murray NA. Thrombocytopenia in the neonate. Blood Rev 2008; 22:173-86.
- von Lindern JS, van den Bruele T, Lopriore E, Walther FJ. Thrombocytopenia in neonates and the risk of intraventricular hemorrhage: a retrospective cohort study. BMC Pediatr 2011; 11:11-6.
- Murray NA, Howarth LJ, McCloy MP, Letsky EA, Roberts IA. Platelet transfusion in the management of severe thrombocytopenia in neonatal intensive care unit patients. Transfus Med 2002; 12:35-41.
- Stanworth SJ, Clarke P, Watts T, et al ; Platelets and Neonatal Transfusion Study Group. Prospective, observational study of outcomes in neonates with severe thrombocytopenia. Pediatrics 2009; 124:826-34.
- Roberts I, Murray NA. Neonatal thrombocytopenia: causes and management. Arch Dis Child Fetal Neonatal Ed 2003; 88:359-64.
- Bonifacio L, Petrova A, Nanjundaswamy S, Mehta R. Thrombocytopenia related neonatal outcome in preterms. Indian J Pediatr 2007; 74:269-74.
- Murray NA, Roberts IA. Circulating megakaryocytes and their progenitors in early thrombocytopenia in preterm neonates. Pediatr Res 1996; 40:112-9.
- Sola-Visner M, Saxonhouse MA, Brown RE. Neonatal thrombocytopenia: what we do and don't know. Early Hum Dev 2008; 84:499-506.
- Charoo BA, Iqbal JI, Iqbal Q, Mushtaq S, Bhat AW, Nawaz I. Nosocomial sepsis-induced late onset thrombocytopenia in a neonatal tertiary care unit: a prospective study. Hematol Oncol Stem Cell Ther 2009; 2:349-53.
- Levi M, van der Poll T. Endothelial injury in sepsis. Intensive Care Med 2013; 39:1839-42.
- Christensen RD, Henry E, Wiedmeier SE, et al. Thrombocytopenia among extremely low birth weight neonates: data from a multihospitalhealthcare system. J Perinatol 2006; 26:348-53.
- Josephson CD, Su LL, Christensen RD, et al. Platelet transfusion practices among neonatologists in the United States and Canada: results of a survey. Pediatrics 2009; 123:278-85.
- Andrew M, Vegh P, Caco C, Kirpalani H, Jefferies A, Ohlsson A. A randomized, controlled trial of platelet transfusions in thrombocytopenic premature infants. J Pediatr 1993; 123:285-91.
- Blanchette VS, Hume HA, Levy GJ, Luban NL, Strauss RG. Guidelines for auditing pediatric blood transfusion practices. Am J Dis Child 1991; 145:787-96.
- Gibson BE, Todd A, Roberts I, Pamphilon D, et al; British Commitee for Standards in Haematology Transfusion Task Force: Writing group. Transfusion guidelines for neonates and older children. Br J Haematol 2004; 124:433-53.
- Borges JP, dos Santos AM, da Cunha DH, Mimica AF, Guinsburg R, Kopelman BI. Restrictive guideline reduces platelet count thresholds for transfusions in very low birth weightpreterm infants. Vox Sang 2013; 104:207-13.
- Bolat F, Kılıç SÇ, Oflaz MB, et al. The prevalence and outcomes of thrombocytopenia in a neonatal intensive care unit: a three-year report. Pediatr Hematol Oncol 2012; 29:710-20.
- Baer VL, Lambert DK, Henry E, Snow GL, Sola-Visner MC, Christensen RD. Do platelet transfusions in the NICU adversely affect survival? Analysis of 1600 thrombocytopenic neonates in a multihospital healthcare system. J Perinatol 2007; 27:790-6.
- Kenton AB, Hegemier S, Smith EO, et al. Platelet transfusions in infants with necrotizing enterocolitis do not lower mortality but may increase morbidity. J Perinatol 2005; 25:173-7.
- Christensen RD, Henry E, Del Vecchio A. Thrombocytosis and thrombocytopenia in the NICU: incidence, mechanisms and treatments. J Matern Fetal Neonatal Med 2012; 25 (Suppl ):4.