Shoulder Dystocia Flashcards

1
Q

Definition

A

Vaginal cephalic delivery requiring additional obstetric manoeuvres to delivery fetus shoulders after delivery of head and gentle traction failed (RCOG, 2012).

TIME CRITICAL EMERGENCY

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2
Q

Incidence

A

0.1% - 3% of all births. 50% of cases have birth weight below 4000g

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3
Q

Risk factors

A
  • Previous shoulder dystocia
  • Macrosomia > 4000g
  • Gestational age
  • GDM
  • Obesity BMI > 30
  • Prolonged 1st/2nd Stage
  • Operative vaginal birth
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4
Q

Help

A
Senior Midwife - Aware of ward activity
Senior OBS - Experienced and knowledge
Anaesthetist - In case we need to go theatre
Scribe - To document everything
Paediatric - To assess baby condition
Runner - To get equipment
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5
Q

Recognition

A
  • Prolonged crowning/restitution
  • Prolonged head bobbing
  • Difficulty with birth of face and chin
  • Turtle neck sign, chin retracts and depress perineum
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6
Q

Principle management

A
  • Maximise pelvic dimension space for shoulders
  • Adduct shoulder
  • Change alignment of shoulders to pass through widest diameter of pelvis
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7
Q

McRoberts position

A
  • Lay women flat
  • flex hips and knees to chest and apply axial traction to fetal head to assess if successful

Increases AP diameter, flattens sacrum and flexes fetal spine

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8
Q

All fours position

A

Position women in exaggerated in all fours to increase pelvic diameter

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9
Q

Suprapubic pressure

A
  • Apply pressure from side of fetal back which reduces diameter of shoulders by adducting shoulders
  • Apply pressure above symphysis pubis onto posterior aspect of anterior shoulder using CPR grip

Apply axial traction

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10
Q

Episiotomy

A

To aid in internal manouvres

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11
Q

Internal manouvres

A
  • Delivery of posterior arm

- Internal rotational manouvre

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12
Q

Delivery of posterior arm

A
  • Reduces diameter of fetal shoulders
  • Pringle hands into vagina
  • Feel for hand and forearm, take hold of wrist with fingers
  • Release posterior arm in straight line
  • Once arm delivered apply axial traction
  • If arm across body, flex antecubital fossa and grab wrists
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13
Q

Internal rotational manouvres

A
  • Move shoulders out of the narrowest diameter into widest diameter
  • Pringle hands press on anterior or posterior aspect of posterior shoulder
  • Rotation moves shoulder into wider oblique pelvis and perform axial traction
  • If one direction doesn’t work try opposite direction
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14
Q

Additional manouvres

A
  • Performed by consultant
  • Deliberate clavicle fracture with direct upwards pressure on clavicle
  • Zavanelli manouvre, cephalic replacement by C/S
  • Symphysiotomy, division of symphysis pubis
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15
Q

Aftercare

A
  • Active management of third stage
  • Psychological care, perform debreif
  • Perform resus, skin to skin, early feed, cord gases, Vit k
  • Maternal normal post labour observations
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16
Q

Documentation

A
  • Proforma
  • Time head delivered
  • Manouvres performed
  • Time body delivered
  • Staff present and time
  • Condition of baby
  • Direction baby facing at birth
  • Incident form
17
Q

Complication

A

Maternal

  • PPH
  • 3rd/4th degree tear
  • Uterine rupture
  • Psychological distress

Neonatal

  • Fetal USS
  • Neonatal mortality
  • Hypoxia
  • Brachial plexus injury
  • Stillbirth