Oligohydramnios

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Oligohydramnios

  1. 1. OLIGOHYDRAMNIOS<br />www.freelivedoctor.com<br />
  2. 2. Definition<br />Reduction of amniotic fluid volume below 500 ml. <br />Anhydramnios is complete absence of amniotic fluid which is very rare.<br />Incidence1:750.<br />www.freelivedoctor.com<br />
  3. 3. Aetiology<br />a.Placental insufficiency: as in severe pre-eclampsia and post-term pregnancy.<br />b. Urinary tract malformations: as renal agenesis (detected by empty foetal bladder on serial ultrasonic scanning) and obstruction of the urinary tract.<br />www.freelivedoctor.com<br />
  4. 4. Clinical Picture<br />a. Uterus is small for date.<br />b. The foetus is in hyperflexed attitude and breech presentation is common.<br />www.freelivedoctor.com<br />
  5. 5. Investigations<br /> Ultrasound: shows small (<1x1cm) amniotic fluid locules. It is important to exclude congenital anomalies, growth retardation and identifies foetal presentation.<br />www.freelivedoctor.com<br />
  6. 6. Complications<br />a. Pulmonary hypoplasia: as the amniotic fluid is essential for lung distension.<br />b. Abnormal foetal development: due to compression of uterine wall and adherent foetal parts.<br /> c. Abnormal presentations.<br />www.freelivedoctor.com<br />
  7. 7. Management<br />In post-term: Termination of pregnancy is indicated.<br />b.Duringlabour: Observe for foetal distress as it is more common, if occurs do immediate vaginal or abdominal delivery according to the circumstances.<br />www.freelivedoctor.com<br />

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