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Preterm Labour
Definition It is onset of labour before completed 37 weeks of pregnancy. Incidence-5-10%.
Aetiology Maternal causes Foetal causes Idiopathic.
Maternal causes  1. Medical disorders:                 > Preeclampsia.                 > Chronic nephritis.                 > Anaemia and malnutrition.  2.Antepartum haemorrhage:                  > Placenta praevia.                       > Abruptioplacentae 3. Uterine anomalies:                 > Septate uterus.                > Incompetent cervix.                               > Fibroid uterus.  4.Psychological or hormonal.
Foetal causes > Congenital anomalies.  > Intrauterine foetal death. > Polyhydramnios.> Multiple pregnancy. > Rh-isoimmunization.  > Premature rupture of membranes.
Risk of Prematurity Birth trauma: particularly intracranial haemorrhage which is aggravated by hypoprothrombinaemia and capillary fragility present in prematures.
Risk of Prematurity Birth trauma: particularly intracranial haemorrhage which is aggravated by hypoprothrombinaemia and capillary fragility present in prematures.
Respiratory distress syndrome (RDS): ,[object Object]
Dyspnoea and cyanosis develops 1-2 hours after delivery and death occurs after about 30 hours.,[object Object]
 Hypothermia as a result of a.Decreased heat production due to;   > reduced muscle activity and hypoglycaemia. b.Increased heat loss due to;    >large surface area relative to body weight,                     > lack of insulating fat,                 > immaturity of the heat regulating center.
Preterm labour
Preterm labour
Preterm labour
Preterm labour
Preterm labour
Preterm labour

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Preterm labour

  • 2. Definition It is onset of labour before completed 37 weeks of pregnancy. Incidence-5-10%.
  • 3. Aetiology Maternal causes Foetal causes Idiopathic.
  • 4. Maternal causes 1. Medical disorders: > Preeclampsia. > Chronic nephritis. > Anaemia and malnutrition. 2.Antepartum haemorrhage: > Placenta praevia. > Abruptioplacentae 3. Uterine anomalies: > Septate uterus. > Incompetent cervix. > Fibroid uterus. 4.Psychological or hormonal.
  • 5. Foetal causes > Congenital anomalies. > Intrauterine foetal death. > Polyhydramnios.> Multiple pregnancy. > Rh-isoimmunization. > Premature rupture of membranes.
  • 6. Risk of Prematurity Birth trauma: particularly intracranial haemorrhage which is aggravated by hypoprothrombinaemia and capillary fragility present in prematures.
  • 7. Risk of Prematurity Birth trauma: particularly intracranial haemorrhage which is aggravated by hypoprothrombinaemia and capillary fragility present in prematures.
  • 8.
  • 9.
  • 10. Hypothermia as a result of a.Decreased heat production due to; > reduced muscle activity and hypoglycaemia. b.Increased heat loss due to; >large surface area relative to body weight, > lack of insulating fat, > immaturity of the heat regulating center.