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Posts Tagged ‘second stage’

Labour: Assisting the Birth. Anaesthetic, Vacuum Extraction, Episiotomy

Tuesday, June 2nd, 2009

Why isn’t the baby out yet?
assisting the birth
What is an assisted delivery?

An assisted delivery is one that uses either forceps or a ventouse, or suction cup (see p.204), to help extract the baby from the birth canal if the baby is not making good progress during labour or there are complications during the second stage of labour in a vaginal delivery You will still be helping to deliver your baby with your contractions, but the instrument used will be helping to guide the baby out of the birth canal.
How is an assisted delivery carried out?
Assisted deliveries are carried out using either forceps or ventouse (vacuum extraction) by a doctor (or specially trained midwife) Forceps are metal instruments specially shaped to fit around the baby’s head, whereas in the ventouse method, a vacuum is created by attaching a cup-like fitting to the head and using a mechanism to create suction to help draw your baby out.
How do they decide whether to use ventouse or forceps? Will it be my choice?
Both forceps- and ventouse-assisted births are relatively safe procedures and, although each has pros and cons, it’s best to be guided by the doctor, as the choice of instrument usually depends on the position of the baby and the doctor’s preference or experience, although your opinion will be taken into consideration. Although forceps used to be the most widely used instrument, ventouse has increased significantly in popularity. Many consider ventouse easier to use and less likely to cause damage and tearing to the mother. However, this method is also more likely to cause swelling to the baby’s head where the cup was placed
What is a “prolonged second stage” and does this mean that the delivery will be assisted?
It is difficult to define a ”prolonged second stage” as it depends on certain factors, for example if it is your first baby the position and size of the baby, if you have an epidural, if the contractions are effective and how often they are coming, how well you are pushing, and if the pelvis is an adequate size There is some evidence to suggest that if the baby has progressed further into the pelvis, and there is no sign of distress. then there is no need to put a time limit on labour. However, it does tend to be the case that hospitals have guidelines as to how long they will allow a woman to push for before deciding that intervention may be necessary Usually, after about one and a half hours, doctors may decide to assist the delivery to reduce the risk of fetal distress and of the mother becoming exhausted.
I had a forceps delivery as in the end I was too tired to push. Is this likely to happen again?
An assisted delivery is more common during a first birth than in subsequent ones. The first pregnancy and birth causes the pelvic ligaments to stretch, which can make subsequent births easier, and the uterus is often more efficient in contracting the second and subsequent times around, which also means that labour is usually shorter Often, even if the baby’s head is not in the best position for birth, for example if the baby is in a posterior position, where the back of the head is towards the mother’s spine and lower back, it may be delivered without assistance during a second delivery Therefore, it is likely, but by no means certain, that you will have a normal vaginal delivery next time.
Can I refuse to have forceps or vacuum extraction and what are the alternatives?
No-one can go against your wishes if you do not want to have a particular procedure. However, it’s usually best to have a flexible approach to labour. Although you may wish for certain things not to take place, the doctor or midwife is likely to have a good reason for wanting to carry out a procedure and has your and -your baby’s best interests at heart. If an assisted delivery is suggested, asking the midwife or doctor to explain and support this decision can help you to come to terms with it. Usually the only other alternative to an assisted delivery would be a Caesarean section: however, this may be difficult if the baby has gone too far into the pelvis
Will I have an anaesthetic before they use the forceps?
Suitable pain relief, such as a local anaesthetic injection, or an epidural, will be given before the procedure The doctor will then help to pull the baby out while the mother pushes. The forceps and ventouse cup are removed after the head has been delivered, and the body is delivered normally,
What can go wrong at an assisted birth?
Forceps and ventouse can cause bruising, swelling, and marks on the baby’s head or face, although these usually resolve without any problems within a few days In rare cases, cuts and severe bruising on
Assisted delivery
An assisted delivery, using forceps or a ventouse vacuum extraction, may be carried out for one or more of the following reasons:
* The mother is exhausted from a long labour and has insufficient energy to push.
* The baby is showing signs of distress during the second stage of labour.
* The baby’s head is in a slightly wrong position -if you are in the second stage of labour, forceps or ventouse can often be used to turn the head around and deliver the baby.
* Forceps are sometimes used to protect the delicate head of a premature baby during birth
* Forceps are sometimes used to deliver the head of a breech baby
* If the baby is particularly large - this can be the case when the mother has had gestational diabetes .
the baby can occur. The paediatrician, a doctor who specializes in babies and children, may prescribe a paracetamol-based medicine to ease any discomfort that the baby may feel There is also an increased
risk of the baby developing jaundice, where the baby looks yellow due to the presence of the waste product bilirubin (see p.164), particularly in cases of severe bruising The levels of bilirubin in the baby will be checked if the doctor is concerned and the condition can be treated, if necessary
For the mother, the two main concerns are that there is an increased risk of tearing or being cut during the procedure - and hence an increased risk of more bleeding (which can be dealt with straight away) - and, rarely, damage may occur to the tubes that lead from the bladder.
If the situation warrants an assisted delivery, the benefits of delivering babies by these methods far outweigh the risks. If the procedure is not successful, an emergency Caesarean may be necessary.

Helping your baby’s birth

A delivery may be assisted using either vacuum extraction (or ventouse), which involves a small suction cap (metal or plastic) being placed on the back of your baby’s head and very gently pulled, or forceps, metal tongs that guide the baby out.
Why might this be necessary? There are several reasons why the obstetrician, and in some units the midwife, will advise this type of birth.  Generally an assisted delivery is carried out because the mother is too tired to carry on pushing after a prolonged second stage of labour, and the ventouse suction cap or forceps can help accelerate the baby’s progress through the birth canal. An assisted delivery may also be necessary if your blood pressure has risen suddenly or if there are signs of fetal distress You will be given either an epidural or local anaesthetic before the procedure is carried out
Is it safe? This is a safe way for your baby to be born, although there is a very small chance that your baby may bleed under his scalp and may need to go to the neonatal unit to be cared for and monitored after the birth, After vacuum extraction, most babies will have a little bump (a ”chignon”) where the soft cup has been attached to the head, and the baby s head may look slightly elongated Babies delivered by forceps may have marks on the sides of the head where the tongs were. However, any swelling or marks should disappear within a few days
Will I need an episiotomy? An episiotomy - a cut made between your vagina and back passage to make more space for your baby to be born in order to prevent tearing - is sometimes carried out if you have an assisted delivery, and is more likely with a forceps delivery.

Episiotomy
An episiotomy is an incision, or cut, made with scissors into the area called the perineum, which is the piece of tissue between the vagina and the anus. This area stretches and thins during the birth to allow for the baby’s head to be born with ease An episiotomy is performed only in an emergency situation An example of this is if the baby needs to be born quickly, or sometimes during an assisted delivery for example with forceps (see opposite), to prevent uncontrolled tearing Before the procedure is performed, a local anaesthetic is gently injected into the muscle to reduce the discomfort or pain during the procedure. An episiotomy will need stitching afterwards, and this is usually done by the midwife who has been involved in your delivery or by the obstetrician involved in the birth. Although episiotomies used to be routine around 10 to 15 years ago, they are now performed only when really necessary You should be informed why one is being recommended and give your verbal consent before the procedure is carried out.

MEDIO-LATERAL CUT:
What is an episiotomy and why might this be done?
An episiotomy is a cut along the muscle between the vagina and anus, known as the perineum, to widen the area where the baby will be delivered (see above) This is done only when absolutely necessary and will not be performed without your consent. There are several reasons why an episiotomy may be recommended including if the baby is in distress, to speed up the delivery of the head; in cases of forceps or ventouse deliveries! if the baby’s head is too large to pass through the vagina; if the perineum has not stretched sufficiently by the end of the second stage of labour to allow the smooth passage of the baby’s head through the vagina; if there is a complication in the vaginal delviery of a breech baby: or if the mother is finding it difficult to control her pushing while the baby’s head is crowning (see p. 186), which means she is more likely to tear significantly during the delivery
Usually, local anaesthetic is injected into the muscular area first and the procedure is performed at the strongest part of the contraction, as this distracts you from what is being done and assists with a quick delivery
The thought of having a cut down there is terrifying. What can I do to prevent this?
Some studies have shown that massaging the perineum regularly in pregnancy, using an unscented vegetable oil, can reduce the risk of tearing (see p.111) as this helps to make the area more flexible and may consequently help to stretch the area as the head is being born Wash your hands thoroughly before massaging the perineum. Although an episiotomy may be a worrying prospect, if you are advised to have one, this may prevent uncontrolled tearing.
Why might they do an emergency Caesarean section?
Emergency Caesareans are carried out for several reasons. The baby may be showing signs of being very tired, picked up by the fetal heart monitor or a blood test carried out during labour, and this could lead to the baby being distressed, known as fetal distress, in which case a Caesarean may be recommended Rarely, the umbilical cord comes down before the baby, a condition known as cord prolapse, and this is an emergency that requires immediate delivery by Caesarean.