Operative Vaginal Delivery with Forceps
Introduction to Operative Vaginal Delivery
- The American College of Obstetricians and Gynecologists recommends forceps delivery as the preferred operative vaginal method in certain scenarios due to lower failure rates compared to vacuum extraction 1
- For patients at 35-36 weeks with fetal head in the vaginal canal and Category 2 CTG, forceps delivery is the preferred operative approach, as vacuum extraction is contraindicated at low station due to high risk of intracranial and subgaleal hemorrhage 1, 2
Primary Delivery Strategy: Forceps
- Forceps delivery is the preferred operative vaginal method in this scenario due to lower failure rates compared to vacuum extraction 1
- Vacuum extraction should be avoided when the fetal head is at low station due to increased risk of intracranial and subgaleal hemorrhage 1, 2, 3
Contraindications to Vacuum Extraction
- Vacuum-assisted delivery should not be performed at low station due to increased risk of significant fetal injury, including intracranial and subgaleal hemorrhage 2, 3
- The use of a single forceps blade or ventouse as a lever to disimpact the fetal head is considered dangerous and should be avoided 3
Intrapartum Management Protocol
- The American College of Obstetricians and Gynecologists recommends placing the patient in lateral decubitus position to attenuate hemodynamic impact of uterine contractions during operative delivery 1, 2
- Continuous electronic fetal heart rate monitoring should be maintained throughout the operative delivery 1, 3
Cesarean Section Considerations
- If cesarean becomes necessary with impacted fetal head, reverse breech extraction may be associated with better neonatal outcomes including improved Apgar scores and reduced NICU admissions 6, 4
- Manual vaginal disimpaction (vaginal push method) can be used to move the fetal head up into the abdomen before making a uterine incision 7, 8
Critical Contraindications to Assess
- Suspected cephalopelvic disproportion is an absolute contraindication to operative vaginal delivery and requires cesarean section 1, 2
- Thoroughly assess for signs of CPD including marked molding, deflexion, or asynclitism of the fetal head without descent 5
Postpartum Management
- Administer slow IV oxytocin (<2 U/min) after placental delivery to prevent hemorrhage while avoiding hypotension 1
- Continue hemodynamic monitoring for at least 24 hours postpartum due to fluid shifts 1