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Flashcards in Instrumental delivery - facts Deck (5)
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1
Q

Incidence of operative vaginal deliveries

A

10 - 13 %

2
Q

Factors that can influence a risk of failure of instrumental deliveries

A
  • Maternal body mass index over 30
  • Estimated fetal weight over 4000 g or clinically big baby
  • Occipito-posterior position
  • Mid-cavity delivery or when 1/5th of the head palpable per abdomen
3
Q

Vacuum extraction vs forceps

A
  • More likely to fail delivery with the selected instrument
  • More likely to be associated with cephalhaematoma
  • More likely to be associated with retinal haemorrhage
  • More likely to be associated with maternal worries about baby
  • Less likely to be associated with significant maternal perineal and vaginal trauma
  • No more likely to be associated with delivery by caesarean section
  • No more likely to be associated with low 5-minute Apgar scores
  • No more likely to be associated with the need for phototherapy
4
Q

Rate of subdural or cerebral haemorrhage in vacuum deliveries

A

1 in 860 vs 1 in 664 for forceps

5
Q

Risks of complications in sequential instruments

A

1 in 256