Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 11/8/2025

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

Key Pitfalls to Avoid

  • Never attempt vacuum extraction when the fetal head is at low station—this is a dangerous practice with high risk of severe fetal injury 1, 2, 3
  • Do not use a single forceps blade as a lever to disimpact the head—this is considered dangerous and unsupported by evidence 4, 3

REFERENCES

1

Management of Preterm Labor at 33 Weeks [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

2

Vacuum-Assisted Vaginal Delivery at Low Station [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

3

Contraindications and Precautions for Vacuum-Assisted Vaginal Delivery [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

4

management of impacted fetal head at cesarean delivery. [LINK]

American Journal of Obstetrics and Gynecology, 2024

5

management of impacted fetal head at cesarean delivery. [LINK]

American Journal of Obstetrics and Gynecology, 2024

6

management of impacted fetal head at cesarean delivery. [LINK]

American Journal of Obstetrics and Gynecology, 2024

7

management of impacted fetal head at cesarean delivery. [LINK]

American Journal of Obstetrics and Gynecology, 2024

8

the active phase of labor. [LINK]

American Journal of Obstetrics and Gynecology, 2023