Fig. 4From: Low-dose intranasal dexmedetomidine premedication improves epidural labor analgesia onset and reduces procedural pain on epidural puncture: a prospective randomized double-blind clinical studyA The FHR during the first 60Â min after epidural block. B The intensity of IUC during the first 60Â min after epidural block. CON, the conventional PIEB group; IND, the PIEB with intranasal dexmedetomidine group; PIEB, programmed intermittent epidural bolus. FHR, Fetal heart rate; IUC, intensity of uterine contraction. Data are shown as the appearance of mean and error and the plot of 95% CI and analyzed via the liner mixed model, and adjusted Bonferroni correction for multiple comparisons. A P-value less than 0.05 was considered to be statistically significant. Values at T0 were included as covariate for baseline correction. T0: before block, T1: 5Â min after block, T2: 10Â min after block, T3: 15Â min after block, T4: 30Â min after block, T5: 60Â min after blockBack to article page