The Experts below are selected from a list of 225 Experts worldwide ranked by ideXlab platform

Frank H. Boehm - One of the best experts on this subject based on the ideXlab platform.

  • The clinical significance of intermittent sinusoidal Fetal Heart Rate
    American Journal of Obstetrics and Gynecology, 2005
    Co-Authors: A H Kang, Frank H. Boehm
    Abstract:

    Abstract Sinusoidal Fetal Heart Rate may have a spectrum of occurrence that indicates degree of Fetal morbidity. Twelve cases of intermittent sinusoidal Fetal Heart Rate were reviewed for Fetal outcome. Findings of anemia, low umbilical cord pH, and large base excess support that intermittent sinusoidal Fetal Heart Rate may be an early indicator of impending Fetal compromise. (Am J Obstet Gynecol 1999;180:151-2.)

  • INTRAPARTUM Fetal Heart Rate MONITORING
    Obstetrics and Gynecology Clinics of North America, 1999
    Co-Authors: Frank H. Boehm
    Abstract:

    : Intrapartum Fetal Heart Rate monitoring is commonly used to evaluate Fetal status in labor, despite a lack of convincing randomized studies to support its use. The National Institutes of Health have helped standardize Fetal Heart Rate monitoring terminology with their 1997 task force report, which will aid clinicians and scientists in their goal of providing quality care and research. The American College of Obstetricians and Gynecologists has recommended the term nonreassuring Fetal status for electronic Fetal monitor patterns that are not normal; however, Vanderbilt continues to use the terms Fetal stress and Fetal distress, using specific criteria for each. The approximately 30% of Fetal Heart Rate tracings labeled as Fetal stress (or nonreassuring Fetal status) can be evaluated further by the use of Fetal pulse oximetry, a new technology currently under evaluation in this country.

  • The clinical significance of intermittent sinusoidal Fetal Heart Rate.
    American journal of obstetrics and gynecology, 1999
    Co-Authors: A H Kang, Frank H. Boehm
    Abstract:

    Sinusoidal Fetal Heart Rate may have a spectrum of occurrence that indicates degree of Fetal morbidity. Twelve cases of intermittent sinusoidal Fetal Heart Rate were reviewed for Fetal outcome. Findings of anemia, low umbilical cord pH, and large base excess support that intermittent sinusoidal Fetal Heart Rate may be an early indicator of impending Fetal compromise.

Christopher W.g. Redman - One of the best experts on this subject based on the ideXlab platform.

  • Large Fetal Heart Rate decelerations at term associated with changes in Fetal Heart Rate variation.
    American Journal of Obstetrics and Gynecology, 2013
    Co-Authors: G. S. Dawes, M.o. Lobb, G. Mandruzzato, M. Moulden, Christopher W.g. Redman, Timothy Wheeler
    Abstract:

    Objective: The objective was to determine whether large antepartum decelerations in Fetal Heart Rate were associated with a switch from high to low Fetal Heart Rate variation, suggestive of a change in sleep state, and whether the variation predicted outcome. Study Design: Retrospective computerized analysis of 10,272 cardiotocographic records from 3998 patients at 37 to 42 weeks' gestation from four centers in England and Italy identified 140 good-quality records with large decelerations (more than 20 lost beats in area). Results: In otherwise normal cardiotocograms a large deceleration had a 40% chance of association with a downward change in Fetal Heart Rate variation (69% when the deceleration exceeded 100 lost beats). The change resembled that occurring naturally with behavioral states. Uterine contractions did not always precede large decelerations. When they did, the lag time (peak of contraction — trough of deceleration) increased from 28 seconds (at 20 to 29 lost beats) to > 100 seconds with increase in deceleration area. Of patients with large decelerations 76% had a normal vaginal delivery. Conclusion: Large decelerations near term, present in up to 5% of patients with otherwise normal Fetal Heart Rate and variation, are often associated with a fall in Fetal Heart Rate variation characteristic of a change in sleep state, without ominous significance.

  • The advantages of computerized Fetal Heart Rate analysis.
    Journal of Perinatal Medicine, 2009
    Co-Authors: G. S. Dawes, M. Moulden, Christopher W.g. Redman
    Abstract:

    : A brief account is given of the advantages of computerized analysis of human Fetal Heart Rate (FHR) traces antenatally, based on clinical use over 8 years. Accuracy is greater. Results are presented quantitatively and consistently. The numerical measures of the FHR pattern are related to other objective measures of Fetal health, e.g. initial compensated hypoxaemia or terminal acidaemia. Computerized analysis has shown that changes in FHR variation are a better guide than the presence or absence of large decelerations. Recording time is used better. Synoptic displays of data over 4 weeks show significant trends in Fetal Heart Rate variation and movements with time. And the problems geneRated by the limitations of Fetal Heart Rate monitors are identified to exclude spurious information.

  • Large Fetal Heart Rate decelerations at term associated with changes in Fetal Heart Rate variation.
    American journal of obstetrics and gynecology, 1993
    Co-Authors: G. S. Dawes, M.o. Lobb, G. Mandruzzato, M. Moulden, Christopher W.g. Redman, Timothy Wheeler
    Abstract:

    The objective was to determine whether large antepartum decelerations in Fetal Heart Rate were associated with a switch from high to low Fetal Heart Rate variation, suggestive of a change in sleep state, and whether the variation predicted outcome. Retrospective computerized analysis of 10,272 cardiotocographic records from 3998 patients at 37 to 42 weeks' gestation from four centers in England and Italy identified 140 good-quality records with large decelerations (more than 20 lost beats in area). In otherwise normal cardiotocograms a large deceleration had a 40% chance of association with a downward change in Fetal Heart Rate variation (69% when the deceleration exceeded 100 lost beats). The change resembled that occurring naturally with behavioral states. Uterine contractions did not always precede large decelerations. When they did, the lag time (peak of contraction-trough of deceleration) increased from 28 seconds (at 20 to 29 lost beats) to > 100 seconds with increase in deceleration area. Of patients with large decelerations 76% had a normal vaginal delivery. Large decelerations near term, present in up to 5% of patients with otherwise normal Fetal Heart Rate and variation, are often associated with a fall in Fetal Heart Rate variation characteristic of a change in sleep state, without ominous significance.

  • Short-term variation in abnormal antenatal Fetal Heart Rate records.
    American journal of obstetrics and gynecology, 1991
    Co-Authors: P. Street, M. Moulden, G. S. Dawes, Christopher W.g. Redman
    Abstract:

    In a retrospective study the relation of reduced Fetal Heart Rate variation to Fetal acidemia was analyzed with a computerized system for numeric analysis. Between 1983 and 1987, 78 pregnancies were identified in which at least one record of the Fetal Heart Rate had very low long-term variation. The outcome was analyzed to determine the numeric criteria of Fetal Heart Rate variation that most efficiently detect a fetus that will die (preterminal) or is dying (terminal). Because Fetal compromise was found on occasion to be associated with a slow sinusoidal Fetal Heart Rate rhythm that increased measures of long-term variation. It was necessary to define a new index of short-term Fetal Heart Rate variation (the 1/16 minute epoch-epoch variation). This was closely related to long-term variation (r = 0.9) but provided better detection of preterminal records as judged by metabolic acidemia at delivery or intrauterine death.

A H Kang - One of the best experts on this subject based on the ideXlab platform.

  • The clinical significance of intermittent sinusoidal Fetal Heart Rate
    American Journal of Obstetrics and Gynecology, 2005
    Co-Authors: A H Kang, Frank H. Boehm
    Abstract:

    Abstract Sinusoidal Fetal Heart Rate may have a spectrum of occurrence that indicates degree of Fetal morbidity. Twelve cases of intermittent sinusoidal Fetal Heart Rate were reviewed for Fetal outcome. Findings of anemia, low umbilical cord pH, and large base excess support that intermittent sinusoidal Fetal Heart Rate may be an early indicator of impending Fetal compromise. (Am J Obstet Gynecol 1999;180:151-2.)

  • The clinical significance of intermittent sinusoidal Fetal Heart Rate.
    American journal of obstetrics and gynecology, 1999
    Co-Authors: A H Kang, Frank H. Boehm
    Abstract:

    Sinusoidal Fetal Heart Rate may have a spectrum of occurrence that indicates degree of Fetal morbidity. Twelve cases of intermittent sinusoidal Fetal Heart Rate were reviewed for Fetal outcome. Findings of anemia, low umbilical cord pH, and large base excess support that intermittent sinusoidal Fetal Heart Rate may be an early indicator of impending Fetal compromise.

G. S. Dawes - One of the best experts on this subject based on the ideXlab platform.

  • Large Fetal Heart Rate decelerations at term associated with changes in Fetal Heart Rate variation.
    American Journal of Obstetrics and Gynecology, 2013
    Co-Authors: G. S. Dawes, M.o. Lobb, G. Mandruzzato, M. Moulden, Christopher W.g. Redman, Timothy Wheeler
    Abstract:

    Objective: The objective was to determine whether large antepartum decelerations in Fetal Heart Rate were associated with a switch from high to low Fetal Heart Rate variation, suggestive of a change in sleep state, and whether the variation predicted outcome. Study Design: Retrospective computerized analysis of 10,272 cardiotocographic records from 3998 patients at 37 to 42 weeks' gestation from four centers in England and Italy identified 140 good-quality records with large decelerations (more than 20 lost beats in area). Results: In otherwise normal cardiotocograms a large deceleration had a 40% chance of association with a downward change in Fetal Heart Rate variation (69% when the deceleration exceeded 100 lost beats). The change resembled that occurring naturally with behavioral states. Uterine contractions did not always precede large decelerations. When they did, the lag time (peak of contraction — trough of deceleration) increased from 28 seconds (at 20 to 29 lost beats) to > 100 seconds with increase in deceleration area. Of patients with large decelerations 76% had a normal vaginal delivery. Conclusion: Large decelerations near term, present in up to 5% of patients with otherwise normal Fetal Heart Rate and variation, are often associated with a fall in Fetal Heart Rate variation characteristic of a change in sleep state, without ominous significance.

  • The advantages of computerized Fetal Heart Rate analysis.
    Journal of Perinatal Medicine, 2009
    Co-Authors: G. S. Dawes, M. Moulden, Christopher W.g. Redman
    Abstract:

    : A brief account is given of the advantages of computerized analysis of human Fetal Heart Rate (FHR) traces antenatally, based on clinical use over 8 years. Accuracy is greater. Results are presented quantitatively and consistently. The numerical measures of the FHR pattern are related to other objective measures of Fetal health, e.g. initial compensated hypoxaemia or terminal acidaemia. Computerized analysis has shown that changes in FHR variation are a better guide than the presence or absence of large decelerations. Recording time is used better. Synoptic displays of data over 4 weeks show significant trends in Fetal Heart Rate variation and movements with time. And the problems geneRated by the limitations of Fetal Heart Rate monitors are identified to exclude spurious information.

  • Large Fetal Heart Rate decelerations at term associated with changes in Fetal Heart Rate variation.
    American journal of obstetrics and gynecology, 1993
    Co-Authors: G. S. Dawes, M.o. Lobb, G. Mandruzzato, M. Moulden, Christopher W.g. Redman, Timothy Wheeler
    Abstract:

    The objective was to determine whether large antepartum decelerations in Fetal Heart Rate were associated with a switch from high to low Fetal Heart Rate variation, suggestive of a change in sleep state, and whether the variation predicted outcome. Retrospective computerized analysis of 10,272 cardiotocographic records from 3998 patients at 37 to 42 weeks' gestation from four centers in England and Italy identified 140 good-quality records with large decelerations (more than 20 lost beats in area). In otherwise normal cardiotocograms a large deceleration had a 40% chance of association with a downward change in Fetal Heart Rate variation (69% when the deceleration exceeded 100 lost beats). The change resembled that occurring naturally with behavioral states. Uterine contractions did not always precede large decelerations. When they did, the lag time (peak of contraction-trough of deceleration) increased from 28 seconds (at 20 to 29 lost beats) to > 100 seconds with increase in deceleration area. Of patients with large decelerations 76% had a normal vaginal delivery. Large decelerations near term, present in up to 5% of patients with otherwise normal Fetal Heart Rate and variation, are often associated with a fall in Fetal Heart Rate variation characteristic of a change in sleep state, without ominous significance.

  • Short-term variation in abnormal antenatal Fetal Heart Rate records.
    American journal of obstetrics and gynecology, 1991
    Co-Authors: P. Street, M. Moulden, G. S. Dawes, Christopher W.g. Redman
    Abstract:

    In a retrospective study the relation of reduced Fetal Heart Rate variation to Fetal acidemia was analyzed with a computerized system for numeric analysis. Between 1983 and 1987, 78 pregnancies were identified in which at least one record of the Fetal Heart Rate had very low long-term variation. The outcome was analyzed to determine the numeric criteria of Fetal Heart Rate variation that most efficiently detect a fetus that will die (preterminal) or is dying (terminal). Because Fetal compromise was found on occasion to be associated with a slow sinusoidal Fetal Heart Rate rhythm that increased measures of long-term variation. It was necessary to define a new index of short-term Fetal Heart Rate variation (the 1/16 minute epoch-epoch variation). This was closely related to long-term variation (r = 0.9) but provided better detection of preterminal records as judged by metabolic acidemia at delivery or intrauterine death.

M. Moulden - One of the best experts on this subject based on the ideXlab platform.

  • Large Fetal Heart Rate decelerations at term associated with changes in Fetal Heart Rate variation.
    American Journal of Obstetrics and Gynecology, 2013
    Co-Authors: G. S. Dawes, M.o. Lobb, G. Mandruzzato, M. Moulden, Christopher W.g. Redman, Timothy Wheeler
    Abstract:

    Objective: The objective was to determine whether large antepartum decelerations in Fetal Heart Rate were associated with a switch from high to low Fetal Heart Rate variation, suggestive of a change in sleep state, and whether the variation predicted outcome. Study Design: Retrospective computerized analysis of 10,272 cardiotocographic records from 3998 patients at 37 to 42 weeks' gestation from four centers in England and Italy identified 140 good-quality records with large decelerations (more than 20 lost beats in area). Results: In otherwise normal cardiotocograms a large deceleration had a 40% chance of association with a downward change in Fetal Heart Rate variation (69% when the deceleration exceeded 100 lost beats). The change resembled that occurring naturally with behavioral states. Uterine contractions did not always precede large decelerations. When they did, the lag time (peak of contraction — trough of deceleration) increased from 28 seconds (at 20 to 29 lost beats) to > 100 seconds with increase in deceleration area. Of patients with large decelerations 76% had a normal vaginal delivery. Conclusion: Large decelerations near term, present in up to 5% of patients with otherwise normal Fetal Heart Rate and variation, are often associated with a fall in Fetal Heart Rate variation characteristic of a change in sleep state, without ominous significance.

  • The advantages of computerized Fetal Heart Rate analysis.
    Journal of Perinatal Medicine, 2009
    Co-Authors: G. S. Dawes, M. Moulden, Christopher W.g. Redman
    Abstract:

    : A brief account is given of the advantages of computerized analysis of human Fetal Heart Rate (FHR) traces antenatally, based on clinical use over 8 years. Accuracy is greater. Results are presented quantitatively and consistently. The numerical measures of the FHR pattern are related to other objective measures of Fetal health, e.g. initial compensated hypoxaemia or terminal acidaemia. Computerized analysis has shown that changes in FHR variation are a better guide than the presence or absence of large decelerations. Recording time is used better. Synoptic displays of data over 4 weeks show significant trends in Fetal Heart Rate variation and movements with time. And the problems geneRated by the limitations of Fetal Heart Rate monitors are identified to exclude spurious information.

  • Large Fetal Heart Rate decelerations at term associated with changes in Fetal Heart Rate variation.
    American journal of obstetrics and gynecology, 1993
    Co-Authors: G. S. Dawes, M.o. Lobb, G. Mandruzzato, M. Moulden, Christopher W.g. Redman, Timothy Wheeler
    Abstract:

    The objective was to determine whether large antepartum decelerations in Fetal Heart Rate were associated with a switch from high to low Fetal Heart Rate variation, suggestive of a change in sleep state, and whether the variation predicted outcome. Retrospective computerized analysis of 10,272 cardiotocographic records from 3998 patients at 37 to 42 weeks' gestation from four centers in England and Italy identified 140 good-quality records with large decelerations (more than 20 lost beats in area). In otherwise normal cardiotocograms a large deceleration had a 40% chance of association with a downward change in Fetal Heart Rate variation (69% when the deceleration exceeded 100 lost beats). The change resembled that occurring naturally with behavioral states. Uterine contractions did not always precede large decelerations. When they did, the lag time (peak of contraction-trough of deceleration) increased from 28 seconds (at 20 to 29 lost beats) to > 100 seconds with increase in deceleration area. Of patients with large decelerations 76% had a normal vaginal delivery. Large decelerations near term, present in up to 5% of patients with otherwise normal Fetal Heart Rate and variation, are often associated with a fall in Fetal Heart Rate variation characteristic of a change in sleep state, without ominous significance.

  • Short-term variation in abnormal antenatal Fetal Heart Rate records.
    American journal of obstetrics and gynecology, 1991
    Co-Authors: P. Street, M. Moulden, G. S. Dawes, Christopher W.g. Redman
    Abstract:

    In a retrospective study the relation of reduced Fetal Heart Rate variation to Fetal acidemia was analyzed with a computerized system for numeric analysis. Between 1983 and 1987, 78 pregnancies were identified in which at least one record of the Fetal Heart Rate had very low long-term variation. The outcome was analyzed to determine the numeric criteria of Fetal Heart Rate variation that most efficiently detect a fetus that will die (preterminal) or is dying (terminal). Because Fetal compromise was found on occasion to be associated with a slow sinusoidal Fetal Heart Rate rhythm that increased measures of long-term variation. It was necessary to define a new index of short-term Fetal Heart Rate variation (the 1/16 minute epoch-epoch variation). This was closely related to long-term variation (r = 0.9) but provided better detection of preterminal records as judged by metabolic acidemia at delivery or intrauterine death.