scholarly journals Reference values for fetal heart rate in cattle in the first trimester of pregnancy

2019 ◽  
Vol 67 (2) ◽  
pp. 274-281
Author(s):  
Lea Lénárt ◽  
Marcel Taverne ◽  
Peter Wolleswinkel ◽  
Zoltán Gubik ◽  
László Molnár ◽  
...  
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
First Trimester ◽  
Reference Curve ◽  
Singleton Pregnancy ◽  
Array Transducer ◽  
Significant Difference ◽  
Bovine Fetuses ◽  
First Trimester Of Pregnancy

The aim of this study was to create a fetal heart rate (FHR) reference curve for singleton bovine fetuses in the first trimester of gestation and to determine its possible relationship with the outcome of pregnancy. Forty-eight Holstein-Friesian cows with one fetus and five cows with twins were used. Fetal heart beatings were recorded on videotape during transrectal scanning with a 5 and/or 7.5 MHz linear array transducer on a weekly basis between Days 40 and 95 of gestation. FHR was calculated by averaging the results of five counts of the same record by the same observer. For singleton pregnancies, a reference curve was created using the mean, the standard deviation (SD) and the 5th and 95th percentiles. The FHR increased from Days 40–46 (173 beats/min) to Days 61–67 (183 beats/min). After a peak, the FHR decreased slowly until Days 89–95 (175 beats/min), while the SD increased. There was no significant difference between singleton and twin fetuses. in the aborted and lost fetuses in twin gestation due to fetal reduction, both bradycardia and tachycardia were detected compared to the singleton pregnancy reference curve.

Pregestational diabetes and fetal heart rate in the first trimester of pregnancy

2019 ◽  
Vol 232 ◽  
pp. 30-32 ◽  
Author(s):  
Angelo Sirico ◽  
Laura Sarno ◽  
Fulvio Zullo ◽  
Pasquale Martinelli ◽  
Giuseppe M. Maruotti
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
First Trimester ◽  
Pregestational Diabetes ◽  
First Trimester Of Pregnancy

Effect of Oligohydramnios on Fetal Heart Rate Patterns during Term Labor Induction

2018 ◽  
Vol 36 (07) ◽  
pp. 715-722
Author(s):  
Janine S. Rhoades ◽  
Molly J. Stout ◽  
George A. Macones ◽  
Alison G. Cahill
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Secondary Analysis ◽  
Neonatal Morbidity ◽  
Fetal Monitoring ◽  
Secondary Outcome ◽  
Significant Difference ◽  
Electronic Fetal Monitoring ◽  
Consecutive Term

Objective To estimate the effect of oligohydramnios on fetal heart rate (FHR) patterns in patients undergoing induction of labor (IOL) at term. Study Design Secondary analysis of a prospective cohort study of consecutive term, singleton deliveries from 2010 to 2015. We included all patients who underwent IOL. Our primary outcomes were electronic fetal monitoring (EFM) characteristics in the 2 hours preceding delivery. Outcomes were compared between those induced with oligohydramnios and those induced without a diagnosis of oligohydramnios. Our secondary outcome was composite neonatal morbidity. Logistic regression was used to control for confounders. Results Of 3,787 patients who underwent IOL, 147 had a diagnosis of oligohydramnios and 3,640 were included in the no oligohydramnios group. There was no significant difference in EFM characteristics between the two groups. There was no difference in composite neonatal morbidity. In patients with oligohydramnios, EFM patterns with baseline tachycardia for 30 minutes or greater were significantly associated with composite neonatal morbidity (31.3 vs. 5.3% adjusted odds ratio 8.63, 95% confidence interval 2.18, 34.1]). Conclusion Term patients undergoing IOL with oligohydramnios had EFM patterns that did not differ from their induced peers.

Gender-Related Differences in Fetal Heart Rate during First Trimester

2005 ◽  
Vol 21 (1) ◽  
pp. 144-147 ◽  
Author(s):  
D.S. McKenna ◽  
G. Ventolini ◽  
R. Neiger ◽  
C. Downing
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
First Trimester

scholarly journals The pattern of variations in the first trimester fetal heart rate in Indian population: a pilot study

2019 ◽  
Vol 8 (11) ◽  
pp. 4419
Author(s):  
Hethyshi R.
Keyword(s):  
Heart Rate ◽  
Gestational Age ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
First Trimester ◽  
Embryonic Heart ◽  
Large Sample Size ◽  
Crown Rump Length ◽  
Heart Rates ◽  
South Indian

Background: Fetal heart rate is an indicator of fetal viability. During third trimester and labour the normal range of fetal heart rate is between 110-160 bpm as recommended by the international guidelines. Unlike this, the first trimester embryonic heart rate does not lie in the same range. During the first trimester the normal embryonic heart rate varies between each week of gestation, as determined by a few western studies. Indian studies on the same are not available. Objective of this study was to determine the trend of the fetal heart rate in first trimester of pregnancy in South Indian women.Methods: Transvaginal scan was done in 51 pregnant women with singleton pregnancy attending the antenatal clinic in a medical college hospital. Crown rump length and fetal heart rate were measured and plotted on a graph. Also, the fetal heart rate at different gestational age of our study was compared with the fetal heart rates at the same gestational age from the studies in the western population.Results: The range of fetal heart rate at different weeks of gestation was comparable to the heart rate variations as seen in the western population. The maximum heart rates at 9 weeks of gestation in our study was higher than the heart rate in the western population.Conclusions: Possibility of variation in the fetal heart rates in the first trimester in different populations cannot be ruled out until confirmed by studies with large sample size.

scholarly journals P01.44: First-trimester fetal heart rate and Down syndrome screening

2006 ◽  
Vol 28 (4) ◽  
pp. 522-523
Author(s):  
I. Kalelioglu ◽  
R. Has ◽  
S. Aydin ◽  
H. Ermis ◽  
A. Yildirim ◽  
...  
Keyword(s):  
Heart Rate ◽  
Down Syndrome ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
First Trimester ◽  
Down Syndrome Screening

First trimester volumetric measurements: relation with hormone levels and fetal heart rate

2012 ◽  
Vol 286 (2) ◽  
pp. 365-372 ◽  
Author(s):  
Nermin Köşüş ◽  
Aydın Köşüş ◽  
Nilgün Öztürk Turhan
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
First Trimester ◽  
Hormone Levels ◽  
Volumetric Measurements

scholarly journals EFFECT OF PRENATAL YOGA ON ANXIETY, BLOOD PRESSURE, AND FETAL HEART RATE IN PRIMIGRAVIDA MOTHERS

2017 ◽  
Vol 3 (3) ◽  
pp. 246-254 ◽  
Author(s):  
Hamdiah Hamdiah ◽  
Ari Suwondo ◽  
Triana Sri Hardjanti ◽  
Ariawan Soejoenoes ◽  
M Choiroel Anwar
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Systolic Blood Pressure ◽  
Fetal Heart Rate ◽  
Rating Scale ◽  
Fetal Heart ◽  
Alternative Therapy ◽  
Control Group ◽  
P Value ◽  
Significant Difference

Background: Pregnancy increases the risk of developing anxiety that may affect the fetus. Yoga is considered as an alternative therapy to reduce anxiety, blood pressure, and fetal heart rate.Objective: This study aimed to examine the effect of prenatal yoga on anxiety, blood pressure, and fetal heart rate in primigravida mothers.Methods: There were 39 primigravida mothers selected using purposive sampling, which divided to be an experiment group with four-times prenatal yoga and eight-times prenatal yoga, and a control group. The Hamilton Rating Scale For Anxiety (HRSA) was used. Data were analyzed using One way ANOVA and MANOVA.Results: There was a statistically significant difference of prenatal yoga on anxiety (P=0.005), systolic blood pressure (P=0.045), and fetal heart rate (P=0.010). However, there was no significant difference of prenatal yoga on diastolic blood pressure with p-value 0.586 (>0.05)Conclusion: There were significant effects of prenatal yoga on anxiety level, systolic blood pressure, and the fetal heart rates in primigravida mothers. The findings of this study can be an alternative treatment for midwife to deal with anxiety during pregnancy, and an input on the class program of pregnant women to improve the quality of maternal and fetal health.

Evaluation of the Fetal Heart Rate during Amniocentesis in Fetuses with Normal and Abnormal Karyotype

2014 ◽  
Vol 68 (1) ◽  
pp. 25-27
Author(s):  
Marija Hadzi-Lega ◽  
Ana Daneva-Markova ◽  
Eva Sozovska
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Chromosomal Abnormalities ◽  
Multiple Pregnancy ◽  
Invasive Procedure ◽  
Abnormal Karyotype ◽  
Significant Difference ◽  
The Mean ◽  
Heart Rate Reaction

Abstract Introduction. We monitored the fetal heart rate (FHR) during amniocentesis in fetuses at 16-22 weeks of gestation and investigated whether an abnormal FHR was associated with chromosomal abnormalities. Methods. This prospective study involved 600 women at 16-22 weeks of gestation who underwent genetic amniocentesis. The FHR, expressed as beats for minute, was recorded before (FHR1), immediately after (FHR2) and 60 min after (FHR3) the invasive procedure. Structural malformations detected by ultrasound and multiple pregnancy were excluded from the study. Results. Chromosomal abnormalities have been diagnosed in 27 fetuses. Mean FHR decrease after amniocentesis has been observed in normal and in abnormal fetuses. The mean variation during amniocentesis was significant in both groups (P<0.01). The comparison between the mean FHR of the two groups showed no differences in FHR1 and FHR2 (P>0.05) but a significant difference in FHR3 (P<0.05). Conclusion. The FHR decreased after amniocentesis; the decrease was larger in chromosomally abnormal fetuses than in normal fetuses. This difference in heart rate reaction to amniocentesis might be due to cardiac defects or developmental delay associated with the abnormal karyotype.

Sign in / Sign up

Export Citation Format

Share Document