Elevated uterine activity increases the risk of fetal acidosis at birth

P C A M Bakker; P H J Kurver; D J Kuik; H P Van Geijn

doi:https://doi.org/10.1016/j.ajog.2006.11.035

Elevated uterine activity increases the risk of fetal acidosis at birth

P C A M Bakker, P H J Kurver, D J Kuik, H P Van Geijn

Research output: Contribution to journal › Article › Academic › peer-review

134 Citations (Scopus)

Abstract

OBJECTIVE: The objective of the study was to assess the role of uterine activity on fetal outcome.

STUDY DESIGN: Intrauterine pressure (IUP) recordings from consecutive term singleton, vaginal deliveries collected between June 1, 1993, and July 1, 2004, were analyzed. One thousand four hundred thirty-three recordings were included. IUP data were obtained using HP 8040A and HP M1350 cardiotocographs. For each recording the uterine contraction curve was analyzed, and the following contraction parameters were determined: relaxation time; contraction duration, frequency, amplitude, and surface; Montevideo units; and active planimeter units and contraction frequency. IUP recordings and contraction parameters from deliveries ending with an umbilical artery pH of 7.11 or less were compared with those ending with an umbilical artery pH of 7.12 or greater. Statistical analyses were performed using Student's t test and logistic regression.

RESULTS: An umbilical artery pH 7.11 or less at birth is associated with significant more uterine activity during the first and second stage of labor.

CONCLUSION: Increased uterine activity is significantly associated with a higher incidence of an umbilical artery pH of 7.11 or less.

Original language	English
Pages (from-to)	313.e1-313.e6
Journal	American Journal of Obstetrics and Gynecology
Volume	196
Issue number	4
DOIs	https://doi.org/10.1016/j.ajog.2006.11.035
Publication status	Published - Apr 2007

Keywords

Acidosis/diagnosis
Adult
Birth Weight
Causality
Female
Fetal Blood/chemistry
Fetal Monitoring/methods
Follow-Up Studies
Gestational Age
Humans
Incidence
Infant, Newborn
Labor, Obstetric
Parity
Pregnancy
Pregnancy Outcome
Risk Assessment
Umbilical Arteries/chemistry
Uterine Contraction/physiology
Uterine Monitoring/methods

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Cite this

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title = "Elevated uterine activity increases the risk of fetal acidosis at birth",

abstract = "OBJECTIVE: The objective of the study was to assess the role of uterine activity on fetal outcome.STUDY DESIGN: Intrauterine pressure (IUP) recordings from consecutive term singleton, vaginal deliveries collected between June 1, 1993, and July 1, 2004, were analyzed. One thousand four hundred thirty-three recordings were included. IUP data were obtained using HP 8040A and HP M1350 cardiotocographs. For each recording the uterine contraction curve was analyzed, and the following contraction parameters were determined: relaxation time; contraction duration, frequency, amplitude, and surface; Montevideo units; and active planimeter units and contraction frequency. IUP recordings and contraction parameters from deliveries ending with an umbilical artery pH of 7.11 or less were compared with those ending with an umbilical artery pH of 7.12 or greater. Statistical analyses were performed using Student's t test and logistic regression.RESULTS: An umbilical artery pH 7.11 or less at birth is associated with significant more uterine activity during the first and second stage of labor.CONCLUSION: Increased uterine activity is significantly associated with a higher incidence of an umbilical artery pH of 7.11 or less.",

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AU - Bakker, P C A M

AU - Kurver, P H J

AU - Kuik, D J

AU - Van Geijn, H P

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Y1 - 2007/4

N2 - OBJECTIVE: The objective of the study was to assess the role of uterine activity on fetal outcome.STUDY DESIGN: Intrauterine pressure (IUP) recordings from consecutive term singleton, vaginal deliveries collected between June 1, 1993, and July 1, 2004, were analyzed. One thousand four hundred thirty-three recordings were included. IUP data were obtained using HP 8040A and HP M1350 cardiotocographs. For each recording the uterine contraction curve was analyzed, and the following contraction parameters were determined: relaxation time; contraction duration, frequency, amplitude, and surface; Montevideo units; and active planimeter units and contraction frequency. IUP recordings and contraction parameters from deliveries ending with an umbilical artery pH of 7.11 or less were compared with those ending with an umbilical artery pH of 7.12 or greater. Statistical analyses were performed using Student's t test and logistic regression.RESULTS: An umbilical artery pH 7.11 or less at birth is associated with significant more uterine activity during the first and second stage of labor.CONCLUSION: Increased uterine activity is significantly associated with a higher incidence of an umbilical artery pH of 7.11 or less.

AB - OBJECTIVE: The objective of the study was to assess the role of uterine activity on fetal outcome.STUDY DESIGN: Intrauterine pressure (IUP) recordings from consecutive term singleton, vaginal deliveries collected between June 1, 1993, and July 1, 2004, were analyzed. One thousand four hundred thirty-three recordings were included. IUP data were obtained using HP 8040A and HP M1350 cardiotocographs. For each recording the uterine contraction curve was analyzed, and the following contraction parameters were determined: relaxation time; contraction duration, frequency, amplitude, and surface; Montevideo units; and active planimeter units and contraction frequency. IUP recordings and contraction parameters from deliveries ending with an umbilical artery pH of 7.11 or less were compared with those ending with an umbilical artery pH of 7.12 or greater. Statistical analyses were performed using Student's t test and logistic regression.RESULTS: An umbilical artery pH 7.11 or less at birth is associated with significant more uterine activity during the first and second stage of labor.CONCLUSION: Increased uterine activity is significantly associated with a higher incidence of an umbilical artery pH of 7.11 or less.

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KW - Birth Weight

KW - Causality

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KW - Gestational Age

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KW - Incidence

KW - Infant, Newborn

KW - Labor, Obstetric

KW - Parity

KW - Pregnancy

KW - Pregnancy Outcome

KW - Risk Assessment

KW - Umbilical Arteries/chemistry

KW - Uterine Contraction/physiology

KW - Uterine Monitoring/methods

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JO - American Journal of Obstetrics and Gynecology

JF - American Journal of Obstetrics and Gynecology

IS - 4

ER -

Elevated uterine activity increases the risk of fetal acidosis at birth

Abstract

Keywords

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