Related Experiment Videos
[Conduction anesthesia and the newborn infant]
M Palot1, H Visseaux, C Botmans
1Département d'Anesthésie-Réanimation, CHU de Reims.
Cahiers D'Anesthesiologie
|January 1, 1995
Summary
Local anesthetics (LA) and epidural anesthesia (EA) effects on fetuses vary. While some LA can affect fetal heart rate (FHR), neonatal outcomes are generally good with careful monitoring and management of maternal hypotension.
Area of Science:
- Anesthesiology
- Pharmacology
- Obstetrics
Context:
- Placental transfer of local anesthetics (LA) is influenced by maternal, placental, and fetal factors.
- Assessing fetal well-being during epidural anesthesia (EA) involves monitoring fetal heart rate (FHR) and pH.
- Neonatal effects are evaluated using Apgar scores and neurobehavioral tests.
Purpose:
- To review the direct and indirect effects of local anesthetics and epidural anesthesia on fetal and neonatal outcomes.
- To compare the safety and efficacy of different anesthetic agents and techniques during labor and cesarean delivery.
- To provide guidance on managing maternal hypotension and other potential complications.
Summary:
- Direct effects of LA on FHR variability exist but are generally transient; fetal neurological toxicity is rare.
- Indirect effects, primarily maternal hypotension, significantly impact uteroplacental blood flow and fetal pH.
- Epidural narcotics have varying effects, with fentanyl and newer agents showing favorable neonatal profiles compared to morphine.
- General anesthesia (GA) for cesarean sections is associated with poorer neonatal outcomes at 1 minute compared to EA, though perinatal mortality is similar.
Impact:
- Optimizing anesthetic techniques can improve fetal and neonatal outcomes during labor and delivery.
- Understanding the pharmacokinetics and pharmacodynamics of LA is crucial for safe maternal and fetal care.
- This review aids clinicians in selecting appropriate anesthetic strategies to minimize risks and enhance patient safety.