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Bibliographical entry (without author) : | Maternal posture in second stage and fetal acid base status. Br J Obstet Gynaecol. 1987 Aug;94(8):753-7. |
Author(s) : | Johnstone FD, Aboelmagd MS, Harouny AK. |
Year of publication : | 1987 |
URL(s) : | |
Résumé (français) : | Etude sur 58 femmes des effets de la position pendant le second stade du travail, sans exclusion des complications durant la grossesse ou des signes de souffrance foetale. Les femmes sont randomisées entre un groupe où le second stade du travail a lieu en position allongée sur le dos et un groupe où il a lieu dans en position latérale inclinée de 15°. Les femmes sont toutes de parité 0 ou 1 et les deux groupes présentent des caractéristiques comparable excepté pour l’âge maternel au moment de l’accouchement. On n’a pas trouvé de différence entre les deux groupes, mais le groupe allongé sur le dos a une valeur plus faible de pH du cordon ombilical (P inférieur à 0,05), plus haut PC02 (P inférieur à 0,01) et un [base deficit] supérieur, mais pas de manière significative. Le pH et le [base deficit] sont similaires entre les deux groupes dans les cas où le second stade du travail n’a pas duré plus de 15 minutes. Il y a donc une tendance à la baisse du pH et à l’augmentation du [base deficit] avec l’augmentation de la durée du second stade, qui cependant ne se retrouve pas dans le groupe incliné ; ces données n’ont pas de valeur statistiquement significative. Les Apgar bas, les complications pendant la grossesse et les premières grossesses sont chacun associés à des niveaux de pH plus bas, de manière significative. Le positionnement prolongé de la patiente en position allongée à plat devrait être évité pendant le second stade du travail, même si une position alternative n’est pas définie dans les conditions de l’étude. |
Abstract (English) : | The effect of position during the second stage on outcome was studied in 58 women, with no exclusions because of pregnancy complications or signs of fetal distress, who were randomly allocated to have the second stage conducted in either the dorsal or 15 degrees lateral tilt position. All the women were of parity 0 or 1 and the two groups were well matched except for gestational age at delivery. There were no differences in clinical outcome between the two groups, but overall the dorsal group had lower cord artery pH values (P less than 0.05), higher PCO2 (P less than 0.01) and a greater base deficit, but not significantly so. pH and base deficit were similar in both groups where the second stage did not last greater than 15 min. Thereafter, there was a trend to decreasing pH and increasing base deficit with increasing length of second stage in the dorsal group, but not in the tilt group though this did not reach statistical significance. Low Apgar scores, complicated pregnancy and first pregnancy were each associated with significantly lower pH levels. Prolonged placement of the patient in the flat dorsal position should be avoided in second stage, though a suitable alternative under the conditions described has not been defined. |
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Argument (français) : | Comparaison de la position à plat dos avec position latérale inclinée de 15 degrés. Avantage à la position inclinée pour pH du cordon et [base deficit], uniquement lorsque la durée du second stade excède 15 minutes. Autres résultats cliniques identiques. |
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Keywords : | ➡ evidence-based medicine/midwifery ; physiology ; position during labor ; fetal distress |
Author of this record : | Cécile Loup — 21 Apr 2005 |
Related records | |
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Pinned by #1099 | Gupta JK, Hofmeyr GJ. (2004). Position for women during second stage of labour. Cochrane Database Syst Rev. 2004;(1):CD002006. ➡ https://ciane.net/id=1099 |
Pinned by #1122 | De Jonge A, Teunissen TA, Lagro-Janssen AL. (2004). Supine position compared to other positions during the second stage of labor: a meta-analytic review. J Psychosom Obstet Gynaecol. 2004 Mar;25(1):35-45. ➡ https://ciane.net/id=1122 |
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