Re: OB:Home Births in Australia

From: Peter Wein (p.wein@obsgyn-mercy.unimelb.EDU.AU)
Thu Aug 27 21:45:04 1998


At 07:58 PM 27/08/98 -0500, you wrote:

>>
>>Without CTG, how do you know that the fetal heart rate is "non-reassuring"
>>- or do you carry this around as well?
>
>We carry dopplers, and we listen per standards set out by the SOGC for
>intermittent auscultation, which is, by both SOCG and ACOG (as I
>understand it), a perfectly acceptable level of care. If we hear
>anything we don't like, we transport.

The point I was trying to make is that "non-reassuring" is a specific CTG term, usually implying decreased variability or some variable decelerations (in the FIGO intrapartum classification as "suspicious"). AN abnormality on auscultation would only usually be a major baseline bradycardia or tachycardia - which is a little more than "non-reassuring".

>I would hope that you're not routinely using electronic fetal monitoring
on labouring women.

No - we aren't - but maybe we should - I assume that you are aware that routine monitoring significantly decreases the risk of neonatal convulsions, an important indicator of HIE. Here is something about this - do you discuss it with all your patients?

Continuous electronic fetal heart monitoring during labor Thacker SB, Stroup DF

Objectives: To compare the efficacy and safety of routine continuous electronic fetal monitoring (EFM) during labor with intermittent auscultation, using the results of published randomized controlled trials (RCTs).

Search strategy: We identified RCTs by searching the MEDLINE database for 1966-1994 and the register maintained by the Cochrane Pregnancy and Childbirth Group, and by contacting experts, and reviewing published references.

Selection criteria: Our search identified 12 published RCTs addressing the efficacy and safety of continuous EFM; no unpublished studies were found. The studies included 58,855 pregnant women and their 59,324 infants in both high- and low-risk pregnancies from 10 clinical centers in the United States, Europe, Australia, and Africa.

Data collection and analysis: Data were abstracted by one of us, and their accuracy were confirmed independently by a second person. A single reviewer assessed study quality based on criteria developed by others for RCTs. Data reported from similar studies were used to calculate a combined risk estimate for each of 9 outcomes.

Main results: Overall, a statistically significant decrease was associated with routine EFM for a 1-minute Apgar score below 4 relative risk (RR) 0.82, confidence interval (CI) = 0.65,0.98 and neonatal seizures (RR=0.5, CI=0.30,0.82). ....

Conclusions: The only clinically significant benefit from the use of routine continuous EFM was in the reduction of neonatal seizures. In view of the increase in Cesarean and operative vaginal deliveries, the long-term benefit of this reduction must be evaluated in the decision reached jointly by the pregnant woman and her clinician to use continuous EFM or intermittent auscultation during labor.

Date of most recent amendment : 06 March 1998

Date of most recent substantive amendment : 27 June 1996 This review should be cited as : Thacker SB, Stroup DF. Continuous electronic fetal heart monitoring during labor (Cochrane Review). In: The Cochrane Library, Issue 3, 1998. Oxford: Update Software

>>>We also have practice standards about transport time from the home setting.
>>
>>I understand Canada is a big country like Australia - and probably has the
>>same traffic problems in the big cities - how do you cope with rural
>>settings and peak hour traffic?
>
>The same as all emergency services do. Lots of women live extended
>distances from obstetric services...not uncommon for women to have
>babies in cars, in this part of the world.

It is very uncommon here - only about 0.3% of all planned hospital births are born before arrival - if your figure is higher, must not be educating your patients about when to come in. In any case - regarding coping with traffic etc for transfer in labour of planned home birth - this is a foreseeable event, and so preventable, and the risk could be eliminated by hospital delivery >
>>But then the physicians who provide obstetric care do so in hospitals where
>>there are pediatricians. And the article made the point that not all home
>>birth practitioners are registered midwives - nor is there any requirement
>>for them to be registered.
>
>Sorry, Peter, that is *absolutely* not true. There are many level I
>hospitals in this province that are staffed only by family physicians.
>Now, the conscientious ones do get certified in NRP. But they are not
>*required* to do so. Only in major centres are there pediatricians
>in-house; that is the exception, not the rule.

I was clearly and specifically referring to the Australian situation where the vast majority of deliveries are in level 3 or 2 hospitals - in Victoria 24% in level 3, 27% in metropolitan public level 2 and 26% in large rural level 2. 26% are in private hospitals, and most of the deliveries in private hospital are in those with level 2 facilities.

>
>In Ontario, home birth practitioners *are* registered midwives. Those
>who are not (or who are not physicians, and it's extremely rare for
>physicians to provide homebirth) are practicing illegally. Plain as
>that. They sure wouldn't be offering up any statistics for case review.
>

Again - I was specifically referring to the paper and the Australian situation. Anyway - even in Ontario - what is to stop someone who is not a registered midwife and does hold herself out to be one to attend a delivery in the absence of a registered midwife?

>--
>Kathi Wilson BHSc RM
>Thames Valley Midwives
>London, Ontario, Canada
>mailto:wilsonk@gtn.net
>

--

Peter Wein Senior Lecturer Department of Obstetrics and Gynaecology University of Melbourne, Mercy Hospital for Women Clarendon Street, East Melbourne 3002 Australia Tel: +61 3 9270 2556 Fax: +61 3 9417 5406 Mobile: 0414 691690





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