Induction of labour Flashcards

1
Q

indications

A

prolonged pregnancy, e.g. 1-2 weeks after the estimated date of delivery
prelabour premature rupture of the membranes, where labour does not start
diabetic mother > 38 weeks
pre-eclampsia
rhesus incompatibility

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2
Q

what is the bishops score?

A

used to help assess the whether induction of labour will be required.

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3
Q

what components does the bishop score measure?

A

Cervical position

Cervical consistency

Cervical effacement

Cervical dilation

Fetal station

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4
Q

what does the scoring for bishops score indicate?

A

a score of < 5 indicates that labour is unlikely to start without induction

a score of ≥ 8 indicates that the cervix is ripe, or ‘favourable’ - there is a high chance of spontaneous labour, or response to interventions made to induce labour

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5
Q

methods

A

membrane sweep

vaginal prostaglandin

maternal oxytocin infusion

amniotomy

cervical ripening balloon

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6
Q

complications

A

uterine hyperstimulation

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7
Q

what is uterine hyper stimulation

A

the main complication of induction of labour
refers to prolonged and frequent uterine contractions - sometimes called tachysystole

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8
Q

what are the potential consequences of uterine hyper stimulation?

A

intermittent interruption of blood flow to the intervillous space over time may result in fetal hypoxemia and acidemia

uterine rupture (rare)

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9
Q

Mx of uterine hyper stimulation

A

removing the vaginal prostaglandins if possible and stopping the oxytocin infusion if one has been started

tocolysis with terbutaline

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