title: A validation of electrohysterography for uterine activity monitoring during labour.
abstract: OBJECTIVE
  Validation of electrohysterography (EHG) as a method for uterine activity monitoring during labour by comparing with intra-uterine pressure catheter (IUPC) recordings.
  
  
  METHODS
  Prospective observational study.
  
  
  METHODS
  Labour ward in a tertiary centre in the Netherlands.
  
  
  METHODS
  Thirty-two women in labour.
  
  
  METHODS
  Simultaneous recording of uterine activity with EHG and IUPC for at least 30 min.
  
  
  METHODS
  Number of uterine contractions detected by both EHG and IUPC (sensitivity). Number of contractions detected by EHG only [positive predictive value (PPV)]. Correlation between contraction amplitude and duration measured by EHG and IUPC.
  
  
  RESULTS
  EHG detects uterine contractions accurately: sensitivity = 94.5% (95%CI: 87.5-100), PPV = 88.3% (95%CI: 76.2-100). The correlation of contractions' duration and amplitude between both methods is r = 0.31 (95%CI: 0.23-0.39) and r = 0.45 (95%CI: 0.38-0.52), respectively.
  
  
  CONCLUSIONS
  EHG detects uterine contractions accurately during labour but the contraction's characteristics it measures are not directly comparable with that of IUPC.
authors: Department of Obstetrics, University Medical Centre, Utrecht, The Netherlands. bjacod@gmail.com
authors: Benoit C
authors: BC
authors: Jacod
authors: Elisabeth Margo
authors: EM
authors: Graatsma
authors: Eline
authors: E
authors: Van Hagen
authors: Gerard H A
authors: GH
authors: Visser
mesh_terms: D000328:Adult; D015992:Body Mass Index; D004576:Electromyography / Q000379:methods*; D005260:Female; D005865:Gestational Age; D006801:Humans; D007743:Labor, Obstetric / Q000502:physiology*; D008991:Monitoring, Physiologic / Q000379:methods; D011247:Pregnancy; D012680:Sensitivity and Specificity; D014590:Uterine Contraction / Q000502:physiology*