scholarly journals Erroneous Recording of Maternal Heart Rate as Fetal Heart Rate During Second Stage of Labour: Isn’t it Time to Stop this?

2021 ◽  
Vol 2 (5) ◽  
pp. 315-319
Author(s):  
F Saeed ◽  
S Abeysuriya ◽  
E Chandraharan
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Well Being ◽  
Signal Loss ◽  
Large Signal ◽  
Fetal Heart Rate Monitoring ◽  
Maternal Heart Rate ◽  
Second Stage Of Labour ◽  
Ultrasound Technology

Electronic Fetal Heart Rate (FHR) monitoring is recommended to assess fetal well-being during labour in high risk pregnancies. This Cardiotocograph (CTG) monitoring relies on the ultrasound technology with the limitation of signal loss in 15% to 40% of the cases [1]. In the earlier versions of these CTG monitors, fetal heart tracings were generally of reasonable quality with many artefacts and some degree of occasional large signal noise. Subsequent models were improved by signal modulation and autocorrelation. Although, these new methodologies of signal processing have reduced the signal loss, the issues of inadvertent monitoring of the maternal heart rate as fetal heart rate and inaccurate evaluations of baseline fetal heart rate (i.e. doubling or halving) continue to pose difficulties during intrapartum fetal heart rate monitoring.

scholarly journals Doppler Ultrasound Technology for Fetal Heart Rate Monitoring: A Review

2020 ◽  
Vol 67 (2) ◽  
pp. 226-238 ◽  
Author(s):  
Paul Hamelmann ◽  
Rik Vullings ◽  
Alexander F. Kolen ◽  
Jan W. M. Bergmans ◽  
Judith O. E. H. van Laar ◽  
...  
Keyword(s):  
Heart Rate ◽  
Doppler Ultrasound ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Heart Rate Monitoring ◽  
Fetal Heart Rate Monitoring ◽  
Ultrasound Technology

FETOMATERNAL OUTCOME IN MECONIUM STAINED AMNIOTIC FLUID IN A TERTIARY RURAL HEALTH CARE CENTRE

2021 ◽  
pp. 31-33
Author(s):  
Yeshwanthini J ◽  
Mahendra G ◽  
Ravindra S Pukale
Keyword(s):  
Heart Rate ◽  
Fetal Heart Rate ◽  
Fetal Heart ◽  
Birth Asphyxia ◽  
Well Being ◽  
Fetal Outcome ◽  
Meconium Aspiration Syndrome ◽  
Medical Sciences ◽  
Health Care Centre ◽  
Fetal Heart Rate Monitoring

Background: The study was undertaken to determine the correlation of amniotic uid stained with meconium (MSAF) with maternal and fetal outcome. Methods: This prospective observational study was carried out in the Department of Obstetrics and gynecology, Sri Adichunchanagiri Institute of Medical Sciences, BG Nagara for over a period of 6 months between July 2020 and December 2020. A total of 168 pregnant women were included in the study. MSAF on spontaneous or articial rupture of membranes were monitored during labour with fetal heart rate abnormality, consistency of liquor, 1 minute and 5 minute Apgar score, LSCS, instrumental delivery, NICU admissions and neonatal complications as outcome variables. Results: Women were divided into two groups: 69 were cases with meconium stained amniotic uid (MSAF) and 99 were controls with clear amniotic uid. Among 69 cases with MSAF 17.4% were unbooked & 82.6% were booked (at least 3 visits in rst trimester), 79.7% were between 20-30 years of age group. Primigravida's constituted 55.1% in the study group. Approximately 34.8% had gestational ages of >39- 40 weeks. Caesarean section done in cases of MSAF accounted for 55.1% Normal deliveries were 36.2% in cases and 45.5% in controls. Conclusions: Presence of MSAF is worrisome for both the obstetrician and pediatricians view as it increases surgical intervention, birth asphyxia, MAS & NICU admissions. Continuos fetal heart rate monitoring during labour and reassurance of fetal well-being by acid-base assessment were most signicant factors in the reduction of meconium aspiration syndrome

Differences between external and internal fetal heart rate monitoring during the second stage of labor: a prospective observational study

2014 ◽  
Vol 42 (4) ◽  
Author(s):  
Inês Nunes ◽  
Diogo Ayres-de-Campos ◽  
Cristina Costa-Santos ◽  
João Bernardes
Keyword(s):  
Heart Rate ◽  
Observational Study ◽  
Fetal Heart Rate ◽  
Prospective Observational Study ◽  
Fetal Heart ◽  
Signal Loss ◽  
Fetal Heart Rate Monitoring ◽  
Second Stage Of Labor ◽  
Second Stage ◽  
External Monitoring

AbstractTo compare fetal heart rate (FHR) signals acquired simultaneously by an external ultrasound probe and a scalp electrode during the second stage of labor.This was a prospective observational study in a labor ward of a tertiary care university hospital. The population was women in labor with uneventful singleton pregnancies at term. Simultaneous external and internal FHR monitoring was performed in 67 consecutively recruited women during the second stage of labor. Cases were subsequently excluded if the trace length was under 40 min, cesarean birth occurred, or the interval between trace-end and birth exceeded 5 min, leaving a total of 33 traces for analysis. The last 40–60 min of these traces were analyzed by a computer system (Omniview-SisPortoA higher signal loss was observed with external monitoring [10% vs. 4%; P<0.001, LoA=(–6, 18)]. No differences were found in mean FHR baseline [129 bpm vs. 130 bpm, P=0.245, LoA=(–15, 12)], but more accelerations [12 vs. 8, P<0.001, LoA=(–5, 13)] and less decelerations [8 vs. 10, P<0.001, LoA=(–8, 4)] were detected with external monitoring. With this method there were also more accelerations (66% vs. 55%, P=0.036) and less decelerations (68% vs. 81%, P=0.017) coinciding with contractions.External FHR monitoring during the second stage of labor results in higher signal loss, increased number of accelerations, and decreased number of decelerations when compared with internal monitoring.

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