Reason for withdrawal from publication
The review has been withdrawn because it is out of date. It is being updated by two new reviews: 'Fetal and umbilical Doppler ultrasound in high‐risk pregnancy', first published in The Cochrane Library 2010, Issue 1; and 'Maternal and utero‐placental Doppler ultrasound for improving pregnancy outcome', currently in preparation.
The editorial group responsible for this previously published document have withdrawn it from publication.
Keywords: Female; Humans; Pregnancy; Pregnancy, High‐Risk; Ultrasonography, Doppler; Ultrasonography, Prenatal; Blood Flow Velocity; Randomized Controlled Trials as Topic; Umbilical Arteries; Umbilical Arteries/diagnostic imaging
Feedback
Olsen, August 1998
Summary
Abstract: The effect on perinatal mortality is referred to in a way that is more positive than merited by the current data.
Discussion: The evidence in this review has become, over time, less convincing in terms of a reduction in perinatal mortality. One possible explanation for this which should be discussed is publication bias. There is an excess of small positive trials, suggesting small negative trials may be missing.
Reply
A response from the reviewer will be published as soon as it is available.
Contributors
Summary of comments by Ole Olsen, August 1998.
What's new
| Date | Event | Description |
|---|---|---|
| 11 November 2009 | Amended | Review withdrawn from publication. |
History
Protocol first published: Issue 1, 1995 Review first published: Issue 1, 1995
| Date | Event | Description |
|---|---|---|
| 13 October 2008 | Amended | Updated the note about the preparation of the update of this review ‐ see Published notes. |
| 15 June 2008 | Amended | Converted to new review format. Note about the preparation of the update added. |
| 28 June 2001 | Amended | Search updated and trials added to Awaiting assessment. |
| 3 August 1998 | Feedback has been incorporated | Feedback from O Olsen added. |
| 23 February 1996 | New citation required but conclusions have not changed | Background added. |
Sources of support
Internal sources
University of Liverpool, UK.
External sources
No sources of support supplied
Withdrawn from publication for reasons stated in the review