Posterior arm born, anterior arm high, shoulders in A-P diameter – help is required!
In July, Gerhard Bogner of Salzburg presented data at a Breech Birth Network study day. Although the series is small, the data indicate that when the mother is in all fours position to birth a breech baby, approximately 70% of those births will occur completely spontaneously, eg. without the need to perform assisting manoeuvres at all. Use of upright positioning also reduced the rate of maternal perineal damage from 58.5% to 14.6%, which is actually better than cephalic births!
The reduced need for manoeuvres potentially reduces iatrogenic damage to babies associated with interference at the time of birth, such as birth injuries and inhaled meconium. That’s great for that 70%, but what about the other 30%? The babies born with upright positioning in Bogner’s study had a slightly higher rate of low cord blood gases, indicating hypoxia, although no consequences for the infants or differences in 5 minute Apgar scores were observed.
If a woman is birthing her baby in an upright position, how do we assist the birth confidently and safely when delay is identified? How do upright manoeuvres differ from those performed when the woman is supine? To address a growing need for more practical training in upright breech birth, City University are offering Physiological Breech Birth Workshops in London and taster days around the country. The next one is on 2nd of December at the Whittington in Central London. Lots of hands-on training with a small group of doctors and midwives committed to extending breech skills. We also post conferences and workshops provided by others when we can.
Several people have been in touch to ask about the How and When to Help handout. I disabled the link because it is constantly being updated! Please feel free to download this one and use it in your practice area. But keep in mind understanding in this area is constantly expanding, and this is just one midwife’s current approach. I’m working on research to understand others’ approaches as well, but it will be some time until this is finished.
Look out for two articles appearing this month. In The Practising Midwife, I present a summary of current evidence related to ECV (external cephalic version), with some excellent photos provided by Dr Helen Simpson and Midwife Emma Williams of South Tees Foundation Hospital. In Essentially MIDIRS, Mariamni Plested and I talk about issues in providing innovative care for higher risk birth choices.
Finally, shameless plug: Today (30/9/14) is the last day to vote for my, um, remarkable cousin Jake in the NRS National Model Search. Read all about him here, and then click on the link at the bottom of the article to VOTE FOR JAKE!
Favourite quote from the article: “The funny thing is, some bulls are just like big dogs. They come up to you, put their butt in your face and say, ‘Scratch my butt.’ But as soon as they get that flank rope on them, it’s like, ‘Game on. I’ve got something to do now.'”
Awww. Gotta love a bit of passion, of finding your niche and loving it … We love you, Jake! (Just what every 18 year old boy always wanted, a plug on a breech birth information site. We clearly share a common love of butts.)
Update:He won! Go Jake!
Bogner, G., Strobl, M., Schausberger, C., Fischer, T., et al. (2014) Breech delivery in the all fours position: a prospective observational comparative study with classic assistance. Journal of perinatal medicine. [Online] Available from: doi:10.1515/jpm-2014-0048
Helping the aftercoming head to flex in upright breech births
When women are in upright positions, many breech births will proceed completely spontaneously because the birth canal follows the flow of gravity. However, the attending clinician may need to assist, either because maternal effort no longer results in steady progress, or because the baby appears compromised and assistance will result in a quicker delivery. In this blog, I describe one manoeuvre to help in upright breech births.
The shoulder press is very effective in the following circumstances:
The aftercoming head has descended through the pelvic inlet and is either on the perineum (chin visible) or mid-pelvis (chin not visible, but easily reached in the sacral space); and the occiput is anterior
The mother is in an upright, forward-leaning position (e.g. all fours or kneeling)
The clinician facilitating the birth is behind the mother, and the baby is directly facing the clinician (‘tum to bum’ with mother), with head and body in alignment
In this scenario, the maternal pubic arch is directly behind the baby’s occiput. When pressure is applied to the baby’s torso along the clavicular ridge, guiding the baby’s body straight back through the mother’s legs, the pubic arch will push the occiput up and forward. This causes the aftercoming head to flex and descend, following the curve of the birth canal. The sternocleidomastoid muscles (SCM), responsible for head flexion, attach to the superior aspect of the clavicle and keep the head in alignment throughout this process.
Buttock/Gluteal Lift – If descents stops with the perineum tight on the baby’s forehead (bregma), and the shoulder press alone has no further effect, an assistant can augment the manoeuvre by lifting the woman’s buttocks up and out. This lifts the perineum over the bregma as the primary attendant performs the shoulder press, moving the baby in the opposite direction. This assisted manoeuvre is especially helpful when the woman is obese, or the perineum is especially tight and intact.
The feeling and effectiveness of this manoeuvre is very easy to replicate using an obstetric model, turned upside down, as in the video below.
Preserving an intact perineum. An intact perineum helps to maintain beneficial fetal flexion, and routine episiotomy should be avoided for this reason. However, when the aftercoming head has descended onto the perineum, reaching the maxillary or malar bones to perform a modified Mariceau-Smellie-Veit (MSV) can be difficult. Therefore, many clinicians will cut an episiotomy early in order to avoid cutting one while the baby’s face is on the perineum. However, this is not necessary. When the chin is visible, pressure on the maxillary bones through an intact perineum is possible, in combination with upward pressure on the occiput behind the pubic arch, enabling descent to continue. However, the shoulder press is more effective.
Clinicians who are inexperienced or untrained in manoeuvres specific to upright birth will be tempted to pull down on the baby’s torso to deliver the head. However, this does not follow the direction of the birth canal in the same way as the shoulder press as described. Pulling rather than pushing is potentially more likely to result in severe perineal damage, and may also cause cervical nerve damage in the baby due to increased resistance from the intact perineum.
Fractured clavicle. When applying pressure on the clavicle, fracture is an obvious potential risk, although neither I nor those I have learned from have reported fractured clavicles resulting from the use of this manoeuvre. This potential risk can be minimised by spreading the fingers to apply even pressure along the entire ridge, or by applying pressure with fingers or thumbs at the distal aspect, near the glenohumeral joint. The pressure exerted is firm but is not significantly different to that applied when delivering an anterior shoulder in a supine cephalic delivery, and therefore no more likely to result in trauma. The shoulder press minimises the amount of force needed to achieve delivery by promoting maximum head flexion and descent in the direction of the birth canal.
The shoulder press as described, on its own, may not resolve a dystocia caused by a deflexed or hyperextended aftercoming head. A very high chin, pointing upwards, identifies a hyperextended head; only the bottom jawbone (resembling a ‘bird beak’) is felt at the very top of the maternal sacrum. If the deflexed head has impacted at the pelvic inlet, the baby’s whole body may need to be lifted in order to flex and/or rotate the head to oblique so that it can enter the pelvis before the shoulder press is useful. Additionally, suprapubic pressure performed by an assistant may help flex the head enough to pass through the pelvic inlet.
The practice of supporting breech births with the mother in an upright position is somewhat controversial, as minimal research evidence regarding effectiveness exists. Although breech experience is generally at a very low level, most clinicians are only trained to perform lithotomy manoeuvres, and therefore the RCOG recommend lithotomy as the preferred maternal position (RCOG 2006). However, increasingly women are requesting freedom of movement and their own preference to be upright, which is potentially a more satisfying birthing position (Thies-Lagergren L et al 2013). In the absence of evidence that such an approach increases risks, introducing upright manoeuvres into mandatory training will enable this option.
In addition, through discussions with other midwives and participation in the risk management process for various Trusts, I have been informed of several cases of undiagnosed breech births where women were instructed to get onto their backs on their floor following the diagnosis of a breech in labour, due to lack of an obstetric bed in that setting. In some cases, this has been associated with severe delay in delivering the aftercoming head. In true lithotomy, head flexion is promoted by allowing the baby to hang off the end of the bed, where the maternal pubic arch again is responsible for lifting the occiput as gravity gently pulls the baby through the birth canal. This cannot occur on the floor, and the head becomes deflexed. In these cases, the midwives were only trained to perform lithotomy manoeuvres, and instructed that guidelines required them to manage breech births in this way, but the births occurred in settings with no obstetric bed. Providing mandatory training in upright breech to those working in midwifery-led settings will potentially improve outcomes in emergency cases in the short term, and increase maternal choice in the long term.
I first learned about this mechanism from Dr Anke Reitter, FRCOG, of Frankfurt, Germany, and Jane Evans, an experienced UK Independent Midwife. At the University Hospital Frankfurt a similar technique is called ‘Frank’s Nudge’ after the lead obstetrician, Prof Frank Louwen, who introduced the upright management of breech birth to their unit. I do not refer to the manoeuvre as ‘Frank’s Nudge’ because research indicates eponyms cause confusion and lead to inaccurate documentation. Some have described the mechanism as a reflex action, but my hands have experienced it as purely mechanical, and much more effective than Mariceau-Smellie-Veit when women are upright. Others have described a similar experience in my qualitative studies of how people learn vaginal breech birth skills.
RCOG (2006) The Management of Breech Presentation. RCOG Green-top Guidelines, No. 20b. London, Royal College of Obstetricians and Gynaecologists.
Thies-Lagergren L et al (2013) Who decides the position for birth? A follow-up study of a randomised controlled trial.” Women and Birth26(4): e99-e104.
The Dutch in Old Amsterdam do it .. not to mention the Finns .. The folks in Bergen, Norway, do it .. They’re not even second twins …
This Valentine’s Day over 100 obstetricians, midwives, student doctors and student midwives assembled at Crosshouse Hospital in Kilmarnock to show some love to breech babies.
explaining the way ‘prayer hands’ help maintain alignment of the fetal head
We were privileged to be joined by Dr Susanne Albrechtsen, Head of Obstetrics at Haukland Hospital in Bergen, Norway, home of Jørgen Løvset. She has written extensively about the practical management of breech presentation and authored several epidemiological articles. Dr Albrechtsen is responsible for the Norwegian breech guidelines, and shares her expert knowledge of breech and operative vaginal deliveries through practical training throughout Scandinavia and beyond (details available through the Norwegian Medical Society). Her hospital in Bergen, which currently enjoys a CS rate of 13%, is a mecca for trainees hoping to improve their hands-on skills. Haukland, with an annual birth rate of 5000, sees 150-200 breech deliveries per year and Dr Albrechtsen herself has attended over 500 breech deliveries.
How do they do it? Dr Albrechtsen tells us: “You just have to decide that it is good for babies to be born vaginally, unless there is clearly a problem, and commit yourself to developing the skills to enable that to happen.” As she explained, a normal vaginal birth is an important programming event with life-long consequences. Evidence is growing about the links between caesarean section and future disease in the child, such as Type 1 diabetes, asthma, allergies, gastroenteritis and obesity (see Ulander et al, 2004). Dr Albrechtsen also presented her epidemiological data, demonstrating the way CS rates and rates of vaginal birth have changed over the last 40 years in Scandinavia. Particularly interesting were the way the Finns have been able to make a dramatic change within a few years, simply by making the decision to do so.
Dr Michele Mohajer Royal Shrewsbury
Dr Michele Mohajer, whose unit in Shropshire currently enjoys a 14.3% CS rate, shared with us the work of her breech clinic and her extensive experience with ECV, having performed over 1500 procedures herself, in addition to attending hundreds of breech deliveries in her career. It is reassuring to know that these skills are being maintained by expert practitioners.
Feedback from the day suggested that those attending had concerns about managing an undiagnosed breech birth, and interest in developing skills had been driven by recent experiences. This is a real concern. Approximately 3-4% of babies present breech at term, and 25-30% remain undiagnosed until labour. Consequently, an undiagnosed breech presents in labour approximately 1:100 of all births. It is in everyone’s interests that we do our best to support all women wishing to make the informed choice to labour with their breech babies, putting plans in place so that skills can be developed for when women cannot make a measured decision.
working it out together
In my view, organising small on-call teams for breech, involving both doctors and midwives, is the best way to accomplish the re-introduction of breech skills. Some research and professional opinion supports this view (Kotaska 2009, Maier et al 2011). Neither all doctors nor all midwives will be confident and keen to attend a breech birth. Ideally all staff involved will be both, but at least one well-prepared and experienced person at every breech birth is essential, for both safety and the reassurance of the woman involved. At the conference, we also reviewed the mechanisms of breech birth, counselling for informed choice, and how to help in a complicated breech birth, particularly when the woman births in an upright position. I’ve noticed more doctors attending these study days each time we do it. One young obstetrician said to me, “I needed you here about a week ago, when I got hauled over the coals for supporting a woman to [successfully] have her breech baby vaginally.” This threatening cultural atmosphere needs to change. We need obstetricians and midwives who are willing to develop the skills to facilitate breech birth in the safest possible way.
Let’s do it .. Let’s fall in love… with breech babies
This study day was organised by Geraldine Butcher, Consultant Midwife for Ayrshire and Arran, and a passionate advocate for the rights of women to make informed decisions about how to have their babies. Feedback from the study day:
“It has been a very fruitful day for me and I will use the presentations and practice to update my own. I will feel more confident in supporting upright breech birth.”
“It gives me more confidence to promote breech delivery and services surrounding breech as an option.”
“Video scenarios were very helpful. Recent undiagnosed breech presentations have encouraged us to review / update knowledge.”