Reference List
1. Alfirevic Z, Devane D, Gyte GML, Cuthbert A. Continuous
cardiotocography (CTG) as a form of electronic fetal monitoring (EFM)
for fetal assessment during labour.Cochrane Database Syst Rev 2017;
2017. doi: 10.1002/14651858.CD006066.pub3
2. Anderson A. Ten years of maternity claims: an analysis of the NHS
Litigation Authority data – key findings.Clin Risk 2013; 19: 24–31.
3. Royal College of Obstetricians and Gynaecologists. Each Baby Counts
Clinical Engagement Forum – Results Slidepack. 2017
4. Chandraharan E. Intrapartum care: An urgent need to question
historical practices and ‘non-evidence’-based, illogical foetal
monitoring guidelines to avoid patient harm.J Patient Saf Risk Manag
2019; 24: 210–7.
5. Ayres-de-Campos D, Arteiro D, Costa-Santos C, Bernardes J. Knowledge
of adverse neonatal outcome alters clinicians’ interpretation of the
intrapartum cardiotocograph.BJOG An Int J Obstet Gynaecol 2011; 118:
978–84.
6. Steer PJ, Kovar I, McKenzie C, Griffin M, Linsell L. Computerised
analysis of intrapartum fetal heart rate patterns and adverse outcomes
in the INFANT trial.BJOG 2019; 126: 1354–61.
7. Gyllencreutz E, Hulthén Varli I, Lindqvist PG, Holzmann M.
Reliability in cardiotocography interpretation – impact of extended
on-site education in addition to web-based learning: an observational
study.Acta Obstet Gynecol Scand 2017; 96: 496–502.
8. Chandraharan E. Handbook of CTG Interpretation. Cambridge: Cambridge
University Press, 2017. .
9. Chandraharan E, Lowe V, Ugwumadu A, Arulkumaran S. Impact of fetal
ECG (STAN) and competency based training on intrapartum interventions
and perinatal outcomes at a teaching hospital in London: 5 year
analysis.BJOG 2013; 120: 428.
10. Ugwumadu A, Steer P, Parer B, Carbone B, Vayssiere C, Maso G,
Arulkumaran S. Time to optimise and enforce training in interpretation
of intrapartum cardiotocograph.BJOG An Int J Obstet Gynaecol 2016; 123:
866–9.
11. Pehrson C, Sorensen JL, Amer-Wåhlin I. Evaluation and impact of
cardiotocography training programmes: A systematic review.BJOG An Int J
Obstet Gynaecol 2011; 118: 926–35.
12. Sholapurkar SL. Myths at the core of Intrapartum Cardiotocography
Interpretation – Risks of false Ideology, Prospect theory and way
forward.Clin Obstet Gynecol Reprod Med 2019; 5: 1–9.
13. Royal College of Obstetricians and Gynaecologists. Each Baby Counts:
2019 Progress Report.London: RCOG; 2020; 1–58.
14. Ugwumadu A. Understanding cardiotocographic patterns associated with
intrapartum fetal hypoxia and neurologic injury.Best Pract Res Clin
Obstet Gynaecol 2013; 27: 509–36.
15. Chandraharan E. Physiological CTG - Guideline [Internet].
[cited 2020 May 2]. Available from:
https://physiological-ctg.com/guideline.html
16. Landis JR, Koch GG. The Measurement of Observer Agreement for
Categorical Data.Biometrics 1977; 33: 159.
17. Cumming G, Finch S. Inference by eye confidence intervals and how to
read pictures of data.Am Psychol 2005; 60: 170–80.
18. Pinas A, Chandraharan E. Continuous cardiotocography during labour:
Analysis, classification and management.Best Pract Res Clin Obstet
Gynaecol 2016; 30: 33–47.
19. Yatham SS, Whelehan V, Archer A, Chandraharan E. Types of
intrapartum hypoxia on the cardiotocograph (CTG): do they have any
relationship with the type of brain injury in the MRI scan in term
babies?J Obstet Gynaecol 2019; 1–6.
20. Pereira S, Chandraharan E. Recognition of chronic hypoxia and
pre-existing foetal injury on the cardiotocograph (CTG): Urgent need to
think beyond the guidelines.Porto Biomed J 2017; 2: 124–9.
21. Ojala K, Makikallio K, Haapsamo M, Ijas H, Tekay A. Interobserver
agreement in the assessment of intrapartum automated fetal
electrocardiography in singleton pregnancies.Acta Obstet Gynecol Scand
2008; 87: 536–40.
22. Chauhan SP, Klauser CK, Woodring TC, Sanderson M, Magann EF,
Morrison JC. Intrapartum nonreassuring fetal heart rate tracing and
prediction of adverse outcomes: interobserver variability.Am J Obstet
Gynecol 2008; 199: 623.e1-5.
23. Figueras F, Albela S, Bonino S, Palacio M, Barrau E, Hernandez S,
Casellas C, Coll O, Cararach V. Visual analysis of antepartum fetal
heart rate tracings: inter- and intra-observer agreement and impact of
knowledge of neonatal outcome.J Perinat Med 2005; 33: 241–5.
24. Bernardes J, Costa-Pereira A, Ayres-de-Campos D, van Geijn HP,
Pereira-Leite L. Evaluation of interobserver agreement of
cardiotocograms.Int J Gynaecol Obstet 1997; 57: 33–7.
25. Lotgering FK, Wallenburg HC, Schouten HJ. Interobserver and
intraobserver variation in the assessment of antepartum
cardiotocograms.Am J Obstet Gynecol 1982; 144: 701–5.
26. Blackwell SC, Grobman WA, Antoniewicz L, Hutchinson M, Bannerman CG.
Interobserver and intraobserver reliability of the NICHD 3-Tier Fetal
Heart Rate Interpretation System.Am J Obstet Gynecol 2011; 205:
378.e1-378.e5.
27. Rei M, Tavares S, Pinto P, Machado AP, Monteiro S, Costa A,
Costa-Santos C, Bernardes J, Ayres-De-Campos D. Interobserver agreement
in CTG interpretation using the 2015 FIGO guidelines for intrapartum
fetal monitoring.Eur J Obstet Gynecol Reprod Biol 2016; 205: 27–31.
28. Ghi T, Morganelli G, Bellussi F, Rucci P, Giorgetta F, Rizzo N,
Frusca T, Pilu G. Cardiotocographic findings in the second stage of
labor among fetuses delivered with acidemia: a comparison of two
classification systems.Eur J Obstet Gynecol Reprod Biol 2016; 203:
297–302.
29. Santo S, Ayres-de-Campos D, Costa-Santos C, Schnettler W, Ugwumadu
A, Da Graça LM, Clode N, Pinto L, Centeno M, Carvalho R, Rocha P, Reis
I, Afonso M, Castro C, Aserkoff R, Golen T, Ricciotti H, Vadnais M,
Scott J, Rana S, Quant H, Caldwell L, Chandraharan E, Bhide A, Lack N,
Narang L, Muhammad S, Devarajan S, Squires R, Affors K, Ugwumadu L.
Agreement and accuracy using the FIGO, ACOG and NICE cardiotocography
interpretation guidelines.Acta Obstet Gynecol Scand 2017; 96: 166–75.
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