amniotomy
Pronunciation: am-nee-OT-oh-mee
Artificial rupture of fetal membranes performed to induce or augment labor.
Full Definition
Amniotomy is the deliberate rupture of the amniotic sac using a sterile instrument, typically an amniohook or amniotome. This procedure is performed to induce labor, augment slow labor progress, or facilitate internal fetal monitoring placement. The technique requires cervical dilation of at least 2-3 centimeters and confirmation that the presenting part is well-applied to the cervix to minimize cord prolapse risk. Following amniotomy, continuous fetal monitoring is essential due to increased risks of cord compression, infection, and variable decelerations. The procedure should only be performed when delivery is anticipated within a reasonable timeframe.
Usage
Usage note: Often abbreviated as AROM (artificial rupture of membranes).
In Context
- "Amniotomy was performed at 4 cm dilation to augment labor progress." — Labor and delivery record
- "Following amniotomy, clear amniotic fluid was noted without evidence of meconium." — Intrapartum monitoring note