Dear Hora
Many thanks for the information and the link.
I will check this up. I will also post information I find related to
acidosis to the list for information.
Kind regards
Declan
Declan Devane,
Doctoral Student / Midwifery Research Assistant,
School of Nursing and Midwifery Studies,
University of Dublin Trinity College,
Trinity Centre for Health Sciences Education,
St. James's Hospital,
Dublin 8.
Tel: 087 659 6923
Email: [log in to unmask]
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Please note that electronic mail to,
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the subject of a request under the
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-----Original Message-----
From: A forum for discussion on midwifery and reproductive health
research. [mailto:[log in to unmask]] On Behalf Of Hora
Soltani
Sent: 13 October 2003 18:19
To: [log in to unmask]
Subject: Re: Acidosis
Declan
I am not sure this is helpful but it may worth a try. I have recently
been to a lecture on Fuzzy logic and bioinformatics, specifically on
cord gas analysis. The presenter was called Jon Gariboldi (Optimisation
and Planning:ASAP, school of computer science and IT), Nottingham
university http;//www.asap.cs.not.ac.uk). It might worth looking at
this webpage and/or perhaps contacting Jon. His presentation was on the
interpretation of blood gas results. As he stated the main task of the
expert system is to provide an interpretation of the results using the
pH and base deficit of extracellular fluid of both arterial and venous
samples. As it was a project they are working on, they may be helpful
in identifying some centres who do this, etc..
Cheers
(and sorry if it wasn't helpful)
Hora
Dr Hora Soltani
Lead Research Midwife
Derby City General Hospital
Tel: 01332 340131, ext. 5134
>>> [log in to unmask] 13/10/2003 12:53:29 >>>
Dear Vanora
Many thanks and yes, I would be very grateful if you could put me in
touch with the the person who runs the databank in Aberdeen.
I agree defining risk is difficult. Indeed, I have a problem with the
whole concept of risk but that's another story. I would intend on using
criteria similar to that which will be going into the proposal I am
drafting.
Kind regards
Declan
Declan Devane,
Doctoral Student / Midwifery Research Assistant,
School of Nursing and Midwifery Studies,
University of Dublin Trinity College,
Trinity Centre for Health Sciences Education,
St. James's Hospital,
Dublin 8.
Tel: 087 659 6923
Email: [log in to unmask]
*******************************************
Please note that electronic mail to,
from or within Trinity College may be
the subject of a request under the
Freedom of Information Act
*******************************************
-----Original Message-----
From: A forum for discussion on midwifery and reproductive health
research. [mailto:[log in to unmask]] On Behalf Of Vanora
Hundley
Sent: 13 October 2003 09:35
To: [log in to unmask]
Subject: Re: Acidosis
Hi Declan,
I think you have these data from Aberdeen and, as it was intention to
treat, some women were no longer low risk at onset to labour. However,
just incase:
In the Aberdeen Midwife-led unit study (1992-93) the unadjusted odds
ratios were:
Cord pH < 7.0 was 0.64 [CI 0.32 to 1.28] (Figures - Midwives
Unit
19/1558, Labour ward 14/732)
Cord pH < 7.25 was 1.05 [CI 0.85 to 1.29] (Figures - Midwives
Unit 367/1210, Labour Ward 167/579)
Cord pH is collected routinely in Aberdeen (and recorded in the local
databank - but not nationally as far as I know) so it could be
calculated from routine data - the difficult bit is deciding what you
mean by low risk! However, it would be possible to look at unit, such as
the Midwife-led unit (assuming that the women who delivered there were
low risk). I can put you in touch with the person who runs the databank
in Aberdeen if that is helpful.
Best wishes
Vanora
At 20:58 10/10/2003 +0100, you wrote:
Apologies for cross posting
Dear all
I am trying to conduct a sample size estimation for a proposal and could
do with some help.
I should be grateful if anyone could direct me toward the incidence of
umbilical cord blood acidosis in babies of women of 'low-risk' status
on admission in labour. I realise that there are many definitions of
umbilical (artery/venous) acidosis but any help, regardless of the
definition would be much appreciated or does anyone have the means of
calculating such a figure from routinely collected data? This may be
the case where cord bloods are routinely taken from all infants at
birth. I understand this happens in some units.
Thanks
Declan
Declan Devane,
Doctoral Student / Midwifery Research Assistant,
School of Nursing and Midwifery Studies,
University of Dublin Trinity College,
Trinity Centre for Health Sciences Education,
St. James's Hospital,
Dublin 8.
Tel: 087 659 6923
Email: [log in to unmask]
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Please note that electronic mail to,
from or within Trinity College may be
the subject of a request under the
Freedom of Information Act
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------------
Dr Vanora Hundley
Lecturer
Centre for Advanced Studies in Nursing
University of Aberdeen
01224 554579
[log in to unmask]
www.abdn.ac.uk/nursing
Postgraduate Open Day - 6th November 2003
College of Life Sciences and Medicine, Schools of Medicine and Medical
Science For more information, visit:
http://www.abdn.ac.uk/medicine/postgraduate/openday/
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