| Popis: |
Objectives: To investigate the association and the potential value of prelabour fetal heart rate short-term variability (STV) determined by computerised cardiotocography (cCTG) and maternal-foetal Dopplers in predicting labour outcomes. Design: Prospective cohort study. Setting: The Prince of Wales Hospital, a tertiary maternity unit, in Hong Kong SAR. Population: Women with a term singleton pregnancy in latent phase of labour or prior to labour induction were recruited during May 2019 – November 2021. Methods: Ultrasonographic assessment of foetal growth, Doppler velocimetry and the cCTG monitoring including Dawes-Redman CTG analysis. Main Outcome Measures: Umbilical Cord arterial pH, emergency delivery due to pathological CTG during labour and neonatal intensive care unit (NICU)/special care baby unit (SCBU) admission. Results: Of the 400 cases, 34 (8.5%) women underwent emergency delivery for pathological CTG during labour. A total of 6 (1.50%) and 148 (37.00%) newborns required NICU and SCBU admission, respectively. Middle cerebral artery pulsatility index (MCA-PI) and MCA-PI z-score were significant lower in pregnancies that required emergency delivery for pathological CTG during labour compared with those who did not [1.23 (1.07-1.40) vs 1.40 (1.22-1.64), p=0.002 and 0.55 (±1.07) vs 0.12 (±1.06), p=0.049,]. Umbilical cord arterial pH was associated with STV (r = 0.107, p = 0.035) and the independent predictors for umbilical cord arterial pH were smoking (p = 0.006) and STV (p = 0.025). Conclusions: In pregnant women admitted in latent phase of labour or for induction of labour at term, cCTG STV is associated with umbilical cord arterial pH but not predictive of emergency delivery due to pathological CTG during labour. |
