Re: pelvic bone and ultrasound

From: Allen Worrall (jworrall@alaska.net)
Thu Nov 28 09:06:06 2002


You are correct. X-ray pelvimetry used to be a big thing, but it is no longer done. It seems to me that obstetricians do not worry about doing clinical pelvimetry as much as they used to either. Why is this? I think the reason is that if the baby does not fit through the pelvis during labor, one does a C section. X-ray pelvimetry was never that certain anyway. The pelvis is a complex configuration and tends to defy analysis. And of course we could not measure or anticipate the degree of molding of the fetal head, nor the strength of the forces of expulsion. Now that we are pretty comfortable doing C sections, it is better to permit a trial of labor and see what happens. Of course if the presentation is breech that introduces some new problems and different approaches.

And for those women for whom the idea of a trial of labor does not sound appealing, we are even moving toward C Section on demand (which would be my option if I had to have a baby).

Allen

Joseph A Worrall MD RDMS OB/GYN Ultrasound at the Fairbanks Clinic Fairbanks, Alaska, USA jworrall@alaska.net http://www.obgynsono.com

>----- Original Message -----
From: tjdubose@juno.com To: "Multiple recipients of list ULTRASOUND" <ultrasound@mail.medispecialty.com> Sent: Thursday, November 28, 2002 6:39 AM Subject: Re: pelvic bone and ultrasound

> Dear pniknafs@hotmail.com, this forum is for medical professionals to
discuss the use of sonography in women’s health (not public discourse, please go to Pregnancy & Birth, or Women's Health for public discussions), and as such it is common courtesy to identify ourselves professionally. Thanks. >
> As to you question: “Could you please write me Is that possible to
measure female pelvis size appropriateness for delivery by ultrasound? how?” To my knowledge no one has defined a consistent way of measuring the pelvic outlet dimensions or pelvic size by sonography. This used to be a big deal with x-ray, but I don’t think many worry as much about the pelvic size as the fetal size now days. >
> Anyone else have a comment on this?
>
> Peace, Terry J DuBose, M.S., RDMS
> Chair, Ultrasound section OBGYN.net
> Little Rock, Arkansas, USA
>




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