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Table 2 Outcome parameters comparing uncomplicated and difficult fetal extraction

From: Maternal and neonatal outcome of reverse breech extraction of an impacted fetal head during caesarean section in advanced stage of labour: a retrospective cohort study

  outcome parameters mean ± SD / n (%) group 1: uncomplicated (n = 492) group 2: difficult (n = 137) p-value
obstetrical operation time (in min) 32.2 ± 11.1 42.2 ± 17.7 < 0.001*
incision-delivery time (in min) 4.6 ± 2.0 6.9 ± 2.9 < 0.001*
uterotomy-delivery time (in min) 1.3 ± 0.8 2.8 ± 1.5 < 0.001*
additional instrumental delivery 3 (0.6) 7 (5.1%) 0.003*
maternal blood loss (in ml) 556 ± 229.9 652.2 ± 322.9 < 0.001*
delta haemoglobin pre−/postpartum
(in g/l)
21.4 ± 11.6 25.8 ± 12.2 < 0.001*
extensions of the uterine incision 68 (13.8) 34 (24.8) 0.004*
T-incisions 0 7 (5.1) < 0.001*
neonatal umbilical arterial pH < 7.15 10 (2.0) 12 (8.8) < 0.001*
Apgar score at five minutes < 7 5 (1.0) 3 (2.2) 0.381
admissions to the neonatal unit 1 (0.2) 3 (2.2) 0.01
death 0 1 (0.7) 0.22
  1. SD standard deviation, n (%) number (per cent), BMI body mass index, *significant statistical difference between the groups (p < 0.01)