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<p>Preface viii</p> <p>Abbreviations x</p> <p><b>1 The full blood count and blood film in healthy term and preterm neonates 1</b></p> <p>Introduction 1</p> <p>Brief outline of the ontogeny of haemopoiesis 1</p> <p>Properties of fetal haemopoietic stem and progenitor cells 2</p> <p>Red blood cell production and development in the fetus and neonate 5</p> <p>Erythropoietin production in the fetus and neonate 6</p> <p>Haemoglobin synthesis and red blood cell production in the fetus and newborn 6</p> <p>Red blood cell lifespan and the red blood cell membrane in the fetus and neonate 9</p> <p>Red blood cell metabolism in the fetus and neonate 10</p> <p>Iron metabolism in the fetus and neonate 11</p> <p>Normal values for red blood cell parameters in the fetus and neonate 12</p> <p>Leucocytes in the fetus and newborn 17</p> <p>Leucocyte production and function in the fetus and neonate 18</p> <p>Platelets and megakaryocytes in the fetus and neonate 23</p> <p>Developmental megakaryopoiesis and thrombopoiesis 23</p> <p>Platelet numbers in the neonate and fetus – normal values 24</p> <p>Neonatal platelet function 25</p> <p>Practical problems in interpreting neonatal blood counts and films 25</p> <p>Sample quality/artefacts 25</p> <p>Site of sampling 26</p> <p>Gestational age and postnatal age 27</p> <p>Pregnancy-associated complications and mode of delivery 28</p> <p>References 28</p> <p><b>2 Red cell disorders: Anaemia, jaundice, polycythaemia and cyanosis 38</b></p> <p>Neonatal anaemia 38</p> <p>Definition and clinical significance of neonatal anaemia 38</p> <p>Neonatal anaemia due to reduced red cell production 39</p> <p>Neonatal anaemia due to increased red cell destruction 47</p> <p>Neonatal anaemia due to haemoglobinopathies and other microcytic anaemias 67</p> <p>Neonatal anaemia due to blood loss 76</p> <p>Anaemia of prematurity 81</p> <p>A simple diagnostic approach to neonatal anaemia 83</p> <p>Neonatal polycythaemia 85</p> <p>Haematological causes of cyanosis 86</p> <p>Principles of red cell transfusion in neonates 86</p> <p>Illustrative cases 88</p> <p>Abbreviations used in the illustrative cases 110</p> <p>References 110</p> <p><b>3 Neonatal infection and leucocyte disorders 128</b></p> <p>Leucocyte abnormalities in neonatal systemic disease 128</p> <p>Increases in leucocyte numbers 128</p> <p>Neonatal infection and its differential diagnosis: clues from the blood count and blood film 135</p> <p>Storage disorders: diagnostic clues from the blood film 144</p> <p>Neonatal neutropenia 145</p> <p>Definition and causes of neutropenia 145</p> <p>Immune neutropenia 148</p> <p>Inherited congenital or neonatal neutropenia 150</p> <p>Haematological features of neonates with Down syndrome 154</p> <p>Congenital leukaemia 154</p> <p>Leukaemia and preleukaemia in neonates with Down syndrome 156</p> <p>Acute leukaemia in neonates without Down syndrome 160</p> <p>Juvenile myelomonocytic leukaemia and Noonan syndrome myeloproliferative disorder 168</p> <p>Illustrative cases 169</p> <p>Abbreviations used in the illustrative cases 176</p> <p>References 176</p> <p><b>4 Disorders of platelets and coagulation, thrombosis and blood transfusion 190</b></p> <p>Thrombocytopenia overview 190</p> <p>Causes of neonatal thrombocytopenia: a practical classification based on age at onset 192</p> <p>Fetal thrombocytopenia 194</p> <p>Early-onset neonatal thrombocytopenia (presenting at <72 hours of age) 194</p> <p>Late-onset neonatal thrombocytopenia (presenting at >72 hours of age) 196</p> <p>Conditions leading to clinically significant thrombocytopenia in the neonate 197</p> <p>Fetal/neonatal alloimmune thrombocytopenia 197</p> <p>Neonatal thrombocytopenia due to maternal autoimmune disease 200</p> <p>Thrombocytopenia due to congenital infections 201</p> <p>Neonatal thrombocytopenia associated with chromosomal abnormalities 205</p> <p>Inherited thrombocytopenia 206</p> <p>Investigation of neonatal thrombocytopenia 215</p> <p>Management of neonatal thrombocytopenia 215</p> <p>Indications for platelet transfusion 216</p> <p>Platelet function disorders 217</p> <p>Inherited platelet function disorders with normal platelet counts presenting in the neonate 218</p> <p>Thrombocytosis 218</p> <p>Abnormalities of coagulation 220</p> <p>Developmental haemostasis 220</p> <p>Laboratory investigation of coagulation disorders in the neonate 220</p> <p>Acquired coagulation abnormalities 221</p> <p>Inherited coagulation disorders 223</p> <p>Thrombosis 224</p> <p>Screening tests for thrombophilia in neonates 224</p> <p>Acquired thrombotic abnormalities 225</p> <p>Inherited thrombotic abnormalities 225</p> <p>General principles of neonatal platelet and plasma component transfusion 226</p> <p>Platelet transfusion 226</p> <p>Fresh frozen plasma 226</p> <p>Cryoprecipitate 227</p> <p>Prothrombin complex and recombinant factor VIIa 227</p> <p>Illustrative cases 227</p> <p>Abbreviations used in the illustrative cases 233</p> <p>References 234</p> <p>Index 254</p>

<p><b>Irene Roberts</B> is Emeritus Professor of Paediatric Haematology at the Department of Paediatrics and MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford. She was formerly Professor of Paediatric Haematology at Imperial College London and Honorary Consultant Paediatric Haematologist at St Mary’s and Hammersmith Hospitals, Imperial College Healthcare NHS Trust where she established a neonatal haematology diagnostic service based on daily evaluation of peripheral blood films over several decades. Her research focuses on the molecular and biological characteristics of blood disorders in the fetus and early childhood particularly in Down syndrome. <p><b>Barbara J. Bain</B> is a Professor of Diagnostic Haematology at St Mary’s Hospital Campus, Imperial College Faculty of Medicine. She is also a Consultant Haematologist at St Mary’s Hospital, London, UK. Her research has been focused on morphology of blood cells, ethnic and biological differences in haematological variables and cytogenetics and molecular genetics in relation to haematological malignancy. She has collaborated with numerous experts in the field and contributed to the WHO Classification of Tumours of Haemopoietic and Lymphoid Tissues.

<p>This unique handbook contains comprehensive coverage of neonatal haematology and aids diagnosis via high-quality images, diagnostic algorithms, case studies, and tables. With illustrations accompanying the diagnosis at each stage and clear explanations provided throughout, the book is ideal for trainees and experts alike. <p>Authored by two of the world’s leading haematologists, Professor Irene Roberts and Professor Barbara Bain, this book provides a depth of knowledge that is unequalled in other texts. To aid in reader comprehension, it is neatly organised by clinical problems and covers sample topics such as: <ul><li> Red cells: morphology, membrane, enzymes, and changes over the first 4 weeks of life</li> <li> Haemolytic anaemias: causes of neonatal haemolysis, diagnostic clues, and immune haemolysis (haemolytic disease of the newborn)</li> <li> Neonatal anaemia due to blood loss: causes of blood loss, diagnostic clues, feto-maternal haemorrhage, and twin-to-twin transfusion</li> <li> Haematological signs of neonatal infection: causes of neutrophil left shift, leucoerythroblastosis, and toxic granulation</li></ul> <p>Paediatric haematologists, consultant haematologists, and trainees in haematology can use the succinct, well-written content in this book as a useful helping hand during consultation. Biomedical scientists will also value the work as a laboratory reference.

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