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Sharma study
Last Post 20 Mar 2006 09:40 PM by Archived User. 3 Replies.
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20 Mar 2006 09:40 PM QuoteQuote ReplyReply
Dear Henci,
I have had the distinct privilege of hearing you speak several times (
DONA conference in San Francisco and Doula Ed day, Douglas College,
Canada) and sharing lunch conversation with you and other doulas a few
years ago.
I am a CBE in a small community in Canada, and CD(DONA) working in our
local hospital.

I have been recently "called up on the carpet" by a local family
practitioner that runs our Primary Care Obstetric Clinic for teaching
women that epidurals can increase their risk of cesarean section
birth. This doctor said " This is totally false, there is no increase
of cesarean section rates because we have 24 hour epidural services and
we administer low dose epidurals after 4 cm dilation most of the
time." I have been accused of "scaring women" and discouraging them
from consenting to epidurals.
Apparently, I will be receiving a letter in the mail that informs me of
a study that supports this. I am assuming this will be the Sharma study
( 1997).
I've heard Dr. M. Klein speak to this study, but I am wondering about
your perspective.
I'd appreciate any info you can give me. I've scoured your books and
can't seem to find mention of it.

I don't mind taking the heat on this, but I do want to make sure that I
have been teaching the evidence.
Thank you for your help.
Sheri Deveney CD(DONA) LCCE


By: Sheri Deveney
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24 Mar 2006 01:06 AM QuoteQuote ReplyReply
Here's the short version: epidurals don't necessarily increase the c/sec rate. The key word is "necessarily." If the study is done in an institution, as was the Sharma study, where care is managed by practitioners with a commitment to minimizing use of cesarean surgery (midwives care for clinic patients at this institution, and the c/sec rate is extraordinarily low in this study compared with typical US c/sec rates), where epidurals are given only in active labor, where practices encourage and support labor progress, and where pracitioners are patient with slow progress, then, yes, women can have epidurals and not increase their odds of c/sec. But, to use the researcher's lingo, the results of the Sharma study (as well as the other epidural studies conducted at the same hospital) cannot be generalized to institutions where conventional obstetric management is the norm.

Conversely, there are some institutions where practitioners have such high c/sec rates that the use or non-use of epiduals makes no difference. The woman is highly likely to have a c/sec whatever her individual characteristics or what she does or doesn't do.

However, there is a larger point to be made: Even if having an epidural doesn't affect a woman's chances of c/sec, she isn't out of the woods. She is still at substantially higher risk of a vaginal instrumental delivery, and vaginal instrumental deliveries and the episiotomies that usually accompany them can cause pelvic floor weakness and anal sphincter injury, as well as increasing genital trauma in general. There is also as frequent as a 1 in 3,000 chance of experiencing a life-threatening adverse reaction and increased likelihood of a list of temporary minor complications such as hematoma, urinary incontinence, and muscle weakness, which probably don't seem so minor to a woman trying to take care of a new baby.

Here's the real issue: This doctor seems to equate informing women of the disadvantages of epidurals with "scaring them." This is, to say the least, a patronizing attitude, but more importantly, it is a violation of their medical rights. Women are entitled to know the "cons" as well as the "pros" of any medical intervention, the alternatives, including doing nothing, and the pros and cons of the alternatives so that they can make an informed decision. Yours may have been an error of information, in which case, it is easily corrected in future, but this doctor's attitude is a much more serious problem.

-- Henci

By: Henci Goer
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25 Mar 2006 05:38 PM QuoteQuote ReplyReply
Thanks Henci.
I had been using the figures from the Thorpe JA et al. (1993) study and really hadn't been detailing how when an epidural is used at 5 cm, and in conjuction with good care, it doesn't necessarily increase the the c/sec rate. I have now corrected this in my lesson plans.

I will continue to teach the "other side" of epidurals so that women and their partners can make an informed choice.
I appreciate your expertise and support. It is pretty daunting to be called before the physician community, I have to be sharp and ready to produce the evidence.

Sheri~ By: Sheri Deveney
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01 May 2006 08:55 PM QuoteQuote ReplyReply
Sheri,
Is this study online?
Thank you.
maria. By: maria


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