labour_2ndstagemx
Emergency delivery - 2nd stage of labour
see also: labour; ED Mx of emergency breech delivery; Mx of shoulder dystocia in labour; Mx of cord prolapse; neonatal resuscitation
cephalic delivery:
- have mother grasp post. aspect of distal portion thighs with hips & knees flexed
- encourage mother to “bear down” during contractions by holding breath with chin on chest for count of 10, repeated 2 or more times during each contraction, with quick breath between each pushing effort
- check fetal descent occasionally with sterile gloved hand
crowning
- when fetal head maintains labial separation b/n contractions it is said to be “crowning”
- ⇒ place pressure on perineum to decrease risk of uncontrolled delivery & possible extensive vaginal laceration
consider episiotomy
- consider intra-contraction episiotomy when posterior vaginal wall stretched & thin if:
- pre-term neonate (risk of intraventricular haemorrhages)
- prolonged crowning (this quickly results in profound fetal hypoxia)
- fetal compromise (eg. abnormal CTG)
- risk of shoulder dystocia
- forceps or vacuum delivery are likely to be needed
deliver head
- encourage mother to gradually increase her bearing down efforts to allow fetal head to dilate vaginal opening in a controlled fashion whilst supporting perinuem with sterile towel
- when fetal head is delivered (usually face towards perineum then it will rotate 90deg):
- ask mother to stop pushing & to breathe
- cleanse face from contamination
- suction mouth then nose
- check neck for evidence of nuchal cord & if present:
- gently reduce it over its head to prevent constriction with delivery
- if too tight, clamp with 2 haemastats & divide between clamps
deliver shoulders
- encourage mother to again bear down gently as you apply gentle posterolateral traction on side of head to aid delivery of anterior shoulder (see also shoulder dystocia)
- once anterior shoulder free, redirect traction in an anterior direction to deliver baby's posterior shoulder
deliver baby and clamp cord and cut
- support the remainder of the baby's body as it subsequently delivers spontaneously
- hold back of infants head whilst trapping legs & body between your forearm & body (ie. don't drop the slippery little critter!!)
- double clamp cord & divide approx. 2-2.5“ from umbilicus
- recent studies strongly suggest the benefit of “delayed clamping” of the cord to the neonate with no harm to the mother:
- term baby: 2-3 minutes after delivery, or after pulsations cease
- pre-term baby: 20-30 secs after delivery.
dry and resuscitate baby as needed
- place on sterile dry towel & dry thoroughly
- if crying, give to mother otherwise stimulate & consider placing under radiant heater for resuscitation
- if oxygen is used, use low oxygen levels - avoid 100% oxygen.
- see also neonatal resuscitation
labour_2ndstagemx.txt · Last modified: 2011/04/18 03:59 by 127.0.0.1