amnioinfusion
Pronunciation: am-nee-oh-in-FYOO-zhuhn
Therapeutic procedure involving instillation of isotonic fluid into the amniotic cavity to treat oligohydramnios or dilute meconium.
Full Definition
Amnioinfusion is a therapeutic obstetric procedure that involves the transcervical instillation of warmed isotonic saline or lactated Ringer's solution into the amniotic cavity. The primary indications include oligohydramnios to reduce cord compression, thick meconium-stained amniotic fluid to decrease neonatal aspiration risk, and prevention of recurrent variable decelerations during labor. The procedure is performed using an intrauterine pressure catheter or specialized amnioinfusion catheter under continuous fetal monitoring. Potential complications include uterine overdistension, umbilical cord prolapse, and increased risk of chorioamnionitis. Success rates vary depending on indication and timing of intervention.
Usage
Usage note: Distinguish from amniocentesis (diagnostic) and amnioreduction (therapeutic fluid removal).
In Context
- "Amnioinfusion was performed to alleviate recurrent variable decelerations caused by cord compression in the setting of oligohydramnios." — Labor and delivery procedure note
- "The decision to proceed with amnioinfusion was made to dilute thick meconium and reduce aspiration risk." — Intrapartum management plan