Neonatal Transfusion Guidelines

Introduction to Transfusion Strategies

Blood transfusions in neonates should follow restrictive transfusion strategies with specific hemoglobin thresholds based on the infant's clinical status, particularly for preterm neonates born at less than 30 weeks' gestation, as recommended by the American Academy of Pediatrics 1
Restrictive transfusion strategies are preferred over liberal strategies, as they have not demonstrated improved outcomes 1

For preterm neonates (<30 weeks' gestation) with a higher level of illness severity, the recommended hemoglobin thresholds are:
For preterm neonates (<30 weeks' gestation) with a lower level of illness severity, the recommended hemoglobin thresholds are:

Red blood cell transfusion dosing: 10 mL/kg (expected to increase hemoglobin by approximately 20 g/L), as recommended by the Association of Anaesthetists 2, 3
Other blood components should be dosed as follows:
Initial blood product dosing for hemorrhagic shock should be calculated based on the estimated blood volume, with recommended doses including:
Product Dose
Red Blood Cells 10 mL/kg
Fresh Frozen Plasma 10-15 mL/kg
Platelets 10-20 mL/kg
Cryoprecipitate 5-10 mL/kg [3]
A 1:1:1 ratio of RBCs:FFP:platelets should be considered for massive hemorrhage, as recommended by the American Society of Anesthesiologists 3

Parents should be properly informed about the complexity of neonatal transfusion medicine, including known benefits and remaining uncertainties, and their views and preferences should be considered in the decision-making process, as recommended by the American Academy of Pediatrics 1
Documented informed consent should be obtained before transfusion whenever possible (except in emergencies) 1

Continuous monitoring of vital signs (heart rate, respiratory rate, blood pressure, oxygen saturation) and temperature should be performed during transfusion to prevent hypothermia and detect signs of transfusion reactions 1
Monitoring for signs of iatrogenic anemia following significant or repeated blood draws, including tachycardia, decreased activity level, pallor, and decreased hemoglobin/hematocrit levels, is crucial, as recommended by the American Academy of Pediatrics 4
Vital signs, such as heart rate and blood pressure, should be monitored, as well as capillary refill, which should be targeted at ≤2 seconds, and urine output, which should be targeted at >1 mL/kg/hr, as recommended by the Society of Critical Care Medicine 5

The estimated blood volume in pediatric patients ranges from 70-100 mL/kg, with newborns having higher volumes (up to 100 mL/kg) and older children averaging around 70 mL/kg, as reported by 3, 6
Blood volume varies by age, with the following estimated ranges:
Age Group Blood Volume (mL/kg)
Term neonates 85-100
Young infants (0-6 months) 80-85
Older infants (6-24 months) 75-80
Children (2-11 years) 75
Adolescents (11-18 years) 70-75 [3, 6]
Blood should be prescribed in volume (mL) rather than units for pediatric patients, as recommended by 3

Neonates should receive cytomegalovirus-negative blood products, as recommended by the American Society of Anesthesiologists 3
Tranexamic acid should be administered at a loading dose of 15 mg/kg followed by a 2 mg/kg/hr infusion in trauma cases, as recommended by the American Society of Anesthesiologists 3
Temperature management is crucial to prevent hypothermia, which worsens coagulopathy, and calcium supplementation should be monitored and replaced as needed during massive transfusion, as recommended by the American Society of Anesthesiologists 3
Crystalloid boluses of 20 mL/kg can be repeated to a total of 40-60 mL/kg in the first hour, and may require up to 200 mL/kg in severe cases, as recommended by the Society of Critical Care Medicine 5