title: Intrapartum ST segment analyses (STAN) using simultaneous invasive and non-invasive fetal electrocardiography: a report of 6 cases.
abstract: The objective of this study was to analyze ST segment analyses (STAN) using simultaneous traditional - gold standard invasive (fetal scalp electrode) and newly available non-invasive abdominal fetal electrocardiography (fECG) during delivery.This was a prospective observational study of non-invasive fetal ECG using 5 abdominally sited electrodes (Monica AN24) against the traditional fetal scalp electrodes (STAN S31) on 6 patients. Data were analyzed when the STAN S31 found the baseline and when there was a baseline rise.Successful fECG signal acquisition was achieved in 6/6 (100%) patients. Using the non-invasive fECG, P and QRS waves were seen in all cases, and T waves in 3/6 (50%). ST segment analysis analysis was possible in 6/6 (100%) and 3/6 (50%) using invasive and non-invasive fECG, respectively.This study demonstrates that ST segment analysis is feasible using invasive and non-invasive fECG. Further studies are warranted to confirm the preliminary results and improve ECG morphology of non-invasive fECG.
authors.affiliation: Frauenklinik, St. Marienkrankenhaus Frankfurt, Frankfurt, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Reinhard
authors.affiliation: Department of Electrical and Electronic Engineering, University of Nottingham, Nottingham, U.K.
authors.forename: B
authors.initials: B
authors.lastname: Hayes-Gill
authors.affiliation: Obstetrics and Gynaecology department, University of Frankfurt, Frankfurt, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Yuan
authors.affiliation: Gynäkologie und Geburtshilfe, Marien-Hospital Witten, Witten, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Schiermeier
authors.affiliation: Obstetrics and Gynaecology department, University of Frankfurt, Frankfurt, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Louwen
mesh_terms: D015148:Cardiotocography / Q000379:methods*; D004562:Electrocardiography / Q000379:methods*; D005240:Feasibility Studies; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity