Standard Operating Procedure: Shoulder Dystocia Emergency Management

Shoulder dystocia is a time-critical obstetric emergency defined as the inability to deliver the fetal shoulders after the delivery of the head, requiring specific maneuvers to release the impacted anterior shoulder from the maternal symphysis pubis. This SOP outlines the clinical protocol for a rapid, structured response to minimize fetal morbidity (e.g., brachial plexus injury, hypoxia) and maternal trauma (e.g., hemorrhage, lacerations). Team communication and adherence to the "HELPERR" mnemonic are essential for successful resolution.

Phase 1: Recognition and Initial Activation

• Identify the Sign: Recognize the "turtle sign" (retraction of the fetal head against the perineum).
• Call for Help: Activate the obstetric emergency alarm. State clearly: "Shoulder Dystocia, Room [Number]."
• Note the Time: Designate a team member to record the time and sequence of maneuvers performed.
• Avoid Pushing: Instruct the patient to stop pushing immediately to prevent further impaction.

Phase 2: Immediate Maneuvers (The HELPERR Protocol)

• H - Help: Ensure the presence of an attending obstetrician, anesthesiologist, neonatologist, and additional nursing staff.
• E - Episiotomy: Consider an episiotomy if the perineum is obstructing access; evaluate need based on fetal status.
• L - Legs (McRoberts Maneuver): Hyperflex the mother’s thighs against her abdomen to flatten the sacral promontory and rotate the symphysis pubis cephalad.
• P - Pressure (Suprapubic): Apply firm, downward pressure just above the symphysis pubis—not fundal pressure—using the heel of the hand in a "CPR" motion to displace the anterior shoulder.
• E - Enter Maneuvers (Internal Rotation):
  • Rubin Maneuver: Attempt to rotate the posterior shoulder into an oblique position.
  • Woods Screw Maneuver: Apply pressure to the anterior surface of the posterior shoulder to rotate it into an anterior position.
• R - Remove Posterior Arm: Sweep the posterior arm across the fetal chest and deliver the arm to facilitate shoulder rotation.
• R - Roll the Patient: Move the patient to an all-fours (Gaskin) position if initial maneuvers fail.

Phase 3: Advanced Escalation

• Emergency Measures: If the above maneuvers fail, assess for:
  • Fracture of the fetal clavicle (intentional).
  • Zavanelli maneuver (cephalic replacement followed by emergency C-section).
  • Symphysiotomy (if performed by trained personnel).
• Neonatal Support: Ensure the Neonatal Resuscitation Team is briefed and ready for immediate assessment of potential asphyxia or nerve injury.

Pro Tips & Pitfalls

• Pro Tip (The Golden Rule): Never apply fundal pressure. This can worsen the impaction, cause uterine rupture, and increase the risk of permanent brachial plexus injury.
• Pro Tip (Communication): Utilize closed-loop communication. The person managing the delivery should lead the team, while a secondary nurse explicitly calls out the time intervals for each maneuver.
• Pitfall (Anxiety Management): The greatest risk is panic-induced rushing. Move systematically through the maneuvers; allow 30–60 seconds per maneuver unless fetal distress is extreme.
• Pitfall (Documentation): Failure to document the timing of the maneuvers is a common medico-legal vulnerability. Ensure the chart reflects exactly when the diagnosis was made and when each maneuver was attempted.

Frequently Asked Questions (FAQ)

1. How long should we attempt vaginal maneuvers before proceeding to a C-section? There is no fixed time limit, but typically, if maneuvers are unsuccessful within 5–7 minutes, or if fetal heart rate decelerations become severe and unrecoverable, an emergency C-section or rescue maneuver must be initiated.

2. Should a shoulder dystocia drill be performed routinely? Yes. High-reliability organizations conduct multidisciplinary simulation drills at least quarterly to ensure muscle memory and improve team dynamics under stress.

3. What is the primary indicator that the dystocia is resolved? The delivery of the posterior arm or the rotation of the shoulders into the oblique diameter is the most reliable indicator of release. Once the shoulder is "unlocked," delivery of the torso should proceed smoothly without excessive downward traction.