Ultrasound-guided caudal anaesthesia combined with epidural anaesthesia for caesarean section: a randomized controlled clinical trial

Table 6 Side effects

Variables	EA n = 50	SA n = 50	EAC n = 50	χ² values	P values
Maternal bradycardia, n (%)	1(2)	2(4)	1(2)	0.514	0.773
Maternal hypotension, n (%)	10(20) ^*	22(44)	11(22) ^*	8.672	0.013
Nausea, n (%)	5(10)	7(14)	4(8)	0.979	0.613
Vomiting, n (%)	3(6)	4(8)	2(4)	1.515	0.469
Postdural puncture headache, n (%)	1(2)	4(8)	1(2)	2.924	0.232

Values are number of patients (%). EA epidural anesthesia, SA spinal anesthesia, EAC epidural anesthesia combined with caudal anesthesia, ^*P < 0.05 vs. SA group

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