A
new study has shown that women who had a cesarean section in a previous
pregnancy are much more likely to have a safer vaginal birth if their antenatal
care is led by a midwife, according to a new study from The University of
Manchester, reports ITRealms.
Experts
noted that although cesarean sections are safe, research is increasingly
showing that vaginal birth and labour protects against long term-risks such as
impaired immune response, asthma, obesity and type 2-diabetes in the baby. As a
result there is a growing emphasis placed by health authorities on promoting
vaginal birth after cesarean (VBAC) where it is safe to do so.
The
new Manchester study, published in the journal Birth,
is the first to evaluate the influence on VBAC rates of midwife-led antenatal
care as opposed to care led by an obstetrician.
ITRealms gathered that using patient records, 405 women giving birth at one hospital
after a previous cesarean were examined in two groups. The first group
was from 2008 when antenatal care was led by obstetricians and, following a
change in hospital policy in 2009-2010, the second group was drawn from women
who had received midwife-led antenatal care in 2011.
The
number of women who intended to give birth by VBAC in 2011 was 90.3 percent,
against 77 percent in 2008. Those who actually achieved VBAC was also higher in
the midwife-led group with 61.2 percent instead of 46.9 percent. Both
represented significant increases in VBAC when antenatal care was led by a
midwife.
Dr
Helen White, a midwifery lecturer in the University’s School of Nursing,
Midwifery and Social Work, led the research. She said: “There were few
differences between the two groups of women we studied, so the main variance
was the professional responsible for their care.
“Where
it can be achieved safely, vaginal birth is preferable, but there’s a real
issue with women who have had a cesarean once, opting for the same
again. There aren’t many initiatives out there to break this cycle so
this finding is important for providing evidence that midwives are best placed
to promote vaginal birth.”
The
authors of the study are not proposing that women should reject cesarean birth
when they are advised to do so, but suggest that midwives are important figures
in promoting VBAC in suitable women.
There
is a three year gap between the two groups of women but in terms of age, socio-economics,
ethnic group and other variables, the groups are similar. The only
significant change was the change in policy to midwife led care in the
hospital. The results are also unlikely to be due to cultural changes over time
as the VBAC rates across England more generally did not change during the study
period.
Dr
White added: “The more we understand the role of the microbes living in the
vagina, the more we are uncovering the protective effects of labour and natural
birth against conditions such as diabetes and obesity.
“Midwife
led care is cost-effective and, if it safely reduces the number of repeat cesarean sections, then it’s even more beneficial for mothers and babies.”
Uj N. Dominic/GEE
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