Small dates, pregnancy problems Flashcards
What can cause a small baby?
Pre term delivery
Intra uterine growth restriction (IUGR)
Constitutionally small
What is the definition of pre-term birth?
Delivery between 24 and 36+6 weeks
What is the survival rates for a baby born 24 weeks?
20-30%
What is the survival rate for a baby born 27 weeks?
80%
What is the survival rate of a baby born at 32 weeks?
> 95%
What are reasons for preterm birth?
Planned caesarean section
Premature rupture of membranes
Emergency event
What reasons would there be for a planned caesarean section?
Severe pre-eclampsia
Kidney disease
Fetal development
What would be classified as a emergency event?
Placental abruption
Infection
Eclampsia
What is the definition of a ‘small for gestational age’ infant?
<10th centile
What type of growth is affected with Intra Uterine Growth Restriction?
Maternal
Fetal
Placental
What maternal factors can cause poor growth?
Smoking Alcohol Drugs Height/weight Age Maternal disease such as hypertension
What fetal factors can cause poor growth?
Infection e.g. rubella, CMV, toxoplasma
Congenital anomalies e.g. absent kidneys
Chromosomal abnormalities e.g. Down’s syndrome
What placental factors can cause poor growth?
Infarcts
Abruption
Often secondary to hypertension
What are the consequences of being growth restricted during labour or in antenatal phase?
Hypoxia
death
What are the consequences of being growth restricted post nataly?
Hypoglycaemia Effects of asphyxia Hypothermia Polycythaemia Hyperbilirubinaemia Abnormal neurodevelopment
