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EFFECTS OF INTRAMUSCULAR PETHIDINE ON FETAL HEART RATE VARIABILITY DURING LABOUR
Article first published online: 23 AUG 2005
DOI: 10.1111/j.1471-0528.1981.tb01271.x
Issue
1471-0528/asset/cover.gif?v=1&s=b4e1d96c46e18c61210d584b63c13ee375cf562b "BJOG: An International Journal of Obstetrics & Gynaecology")
BJOG: An International Journal of Obstetrics & Gynaecology
Volume 88, Issue 7, pages 718–720, July 1981
Additional Information
How to Cite
Kariniemi, V. and ÄMmälä, P. (1981), EFFECTS OF INTRAMUSCULAR PETHIDINE ON FETAL HEART RATE VARIABILITY DURING LABOUR. BJOG: An International Journal of Obstetrics & Gynaecology, 88: 718–720. doi: 10.1111/j.1471-0528.1981.tb01271.x
Publication History
- Issue published online: 23 AUG 2005
- Article first published online: 23 AUG 2005
- Received November 7, 1980/Accepted February 11, 1981.
- Abstract
- References
- Cited By
Summary
The effects of intramuscularly administered pethidine on indices of fetal heart rate (FHR) variability were studied during labour in 20 women. The differential index, describing the short term variability, and the interval index, describing the long term variability, were measured from direct fetal electrocardiograms by a microprocessor-based ‘on-line’ system. The indices were measured from 10-minute samples, once before the pethidine injection and nine times after the injection. The interval index decreased significantly (p <0·01) with the maximum effect 40 minutes after the injection. The differential index also showed a decreasing trend, with a maximum at 40 minutes, but the change was not significant. Both indices returned to the pre-injection level after 60 minutes. The effect of pethidine on FHR variability during labour might cause difficulties in assessing the fetal state.