Trauma in pregnancy.

The anatomic and physiologic changes make treatment of the pregnant trauma patient complex. The fetus is the challenge, because, in pregnancy, trauma has little effect on maternal morbidity and mortality. Aggressive resuscitation of the mother, in general, is the best management for the fetus, because fetal outcome is directly related to maternal outcome. Recent literature has attempted, with little success, to identify factors that may predict poor fetal outcomes. Cardiotocographic monitoring should be initiated as soon as possible in the emergency department to evaluate fetal well-being. Other key points include: Maternal blood pressure and respiratory rate return to baseline as pregnancy approaches term. Initial fetal health may be the best indicator of maternal health. Inferior vena cava compression in the supine patient may cause significant hypotension. Maternal acidosis may be predictive of fetal outcome. Kleihauer-Betke testing is not necessary in the emergency department. Early ultrasonographic evaluation can identify free intraperitoneal fluid and assess fetal health. Necessary radiographs should not be withheld at any period of gestation. Radiation beyond 20 weeks' gestation is safe. Patients with viable gestations require at least 4 hours of CTM monitoring after even minor trauma.