PMID: 37886Jun 1, 1979

Oscillation-frequency and baseline fetal heart rate in the last 30 minutes of labour

British Journal of Obstetrics and Gynaecology
V M RoemerP Heering


The last 120 minutes of 394 intrapartum fetal heart rate (FHR) records of high technical quality were evaluated. Baseline FHR was estimated and oscillation frequency (OF) counted for each minute. There was a highly significant association between the baseline FHR and the number of oscillations/minute; an increase in baseline FHR of 10 beats/minute was associated with a fall of about one oscillation/minute. The highest mean OF (9.6 +/- 4.8 events/minute) was found in fetuses with an umbilical artery pH of between 7.20 and 7.25. The baseline FHR should be taken into account when assessing fetal condition.


Jun 15, 1977·American Journal of Obstetrics and Gynecology·R K LarosJ Butler
Feb 15, 1977·American Journal of Obstetrics and Gynecology·K J DaltonJ E Patrick
Nov 29, 1977·Archiv für Gynäkologie·V M Roemer, S Heinzl
Nov 15, 1974·American Journal of Obstetrics and Gynecology·F H Boehm, J H Growdon
Oct 1, 1971·The Journal of Obstetrics and Gynaecology of the British Commonwealth·R W BeardG M Roberts


Nov 1, 1996·British Journal of Obstetrics and Gynaecology·I GullJ B Lessing

Related Concepts

Umbilical Cord Blood
Fetal Heart
Pulse Rate
Hydrogen-Ion Concentration
Labor (Childbirth)

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