Document Detail

A comparison of fetal behaviour in breech and cephalic presentations at term.
MedLine Citation:
PMID:  10549969     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To evaluate fetal behaviour in breech and cephalic fetuses at term, using a computerised fetal behaviour program. DESIGN: An observational study. SETTING: Pregnancy Assessment Centre, University Hospital, Nottingham. SAMPLE: Twenty-six breech and 58 cephalic fetuses between 36 and 41 weeks. METHODS: Behaviour (fetal heart rate and activity) was recorded with the use of Doppler ultrasound. The duration of recording was 60 minutes or more in all but four recordings (minimum 49 minutes). MAIN OUTCOME MEASURES: Behavioural criteria studied were 1. the relative percentage time spent in low and high variation fetal heart rate patterns; 2. the duration and recurrence of fetal activity; 3. the number of accelerations in low and high fetal heart rate variation; and 4. the number of fetal behavioural state transitions. RESULTS: Breech fetuses differed from the cephalic group in that they were lighter than the cephalic fetuses (median 3105 g vs 3400 g; P < 0.01) and were born to older mothers (median maternal age 30 years vs 28 years; P < 0.01). No significant differences were found in rates of movement, numbers of accelerations and time exhibiting low and high fetal heart rate variation. However, breech fetuses exhibited significantly more state transitions (median 5.2/h vs 3.69/h; P = 0.01). CONCLUSIONS: This study shows that breech fetuses are neurologically different from their cephalic counterparts in otherwise healthy pregnancies, and that subtle behavioural differences can be demonstrated in utero using this computerised method.
L H Kean; C Suwanrath; S S Gargari; D S Sahota; D K James
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  British journal of obstetrics and gynaecology     Volume:  106     ISSN:  0306-5456     ISO Abbreviation:  Br J Obstet Gynaecol     Publication Date:  1999 Nov 
Date Detail:
Created Date:  1999-11-30     Completed Date:  1999-11-30     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7503752     Medline TA:  Br J Obstet Gynaecol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  1209-13     Citation Subset:  AIM; IM    
University Department of Obstetrics, Midwifery and Gynaecology, Queen's Medical Centre, Nottingham, UK.
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MeSH Terms
Birth Weight
Breech Presentation
Fetal Movement / physiology*
Fetus / physiology*
Gestational Age
Heart Rate, Fetal / physiology*
Labor Presentation*
Pregnancy Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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