10 May 2009

Fetal distress



Fetal distress
Presentation by:LIN QI DE

Fetal distress is defined as depletion of oxygen and accumulation of carbon dioxide,leading to a state of “hypoxia and acidosis ” during intra-uterine life.

Definition
Maternal factors

* Microvascular ischaemia(PIH)
* Low oxygen carried by RBC(severe anemia)
* Acute bleeding(placenta previa, placental abruption)
* Shock and acute infection
* obstructed of Utero-placental blood flow

Etiology
Placenta umbilical factors
* Obstructed of umbilical blood flow
* Dysfunction of placenta
* Fetal factors
* Malformations of cardiovascular system
* Intrauterine infection

Hypoxiaaccumulation of carbon dioxide
Respiratory Acidosis
Intestinal peristalsis
Relaxation of the anal sphincter
Meconium aspiration
Fetal or neonatal pneumonia
Pathogenesis
Acute fetal distress

Clinical manifestation Acute fetal distress
Acute fetal distress
Chronic fetal distress
Management

Fetal distress.ppt

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