Analgesic efficacy of continuous ultrasound-guided unilateral erector spinae block and thoracic epidural analgesia in patients undergoing antero-lateral thoracotomy

Table 3 Comparison of mean arterial pressure and postoperative inotropic requirement between the two study groups

Time post-extubation (hours)	ESB (n = 34)	TEA (n = 34)	P value
MAP
0	68.4 ± 3.15	58.8 ± 5.02	< 0.0001a
6	68.4 ± 6.16	60.2 ± 6.04	< 0.0001a
12	70.4 ± 5.58	61.2 ± 4.11	< 0.0001a
24	69.5 ± 5.08	63.14 ± 3.4	< 0.0001a
36	71.7 ± 4.8	64.7 ± 2.0	< 0.0001a
48	72.4 ± 4.36	64.58 ± 2.68	< 0.0001a
72	72.0 ± 4.36	65.8 ± 2.78	< 0.0001a
Proportion of patients with postoperative inotropic requirement
0	0/34	14/34	0.001a
6	2/34	14/34	0.0012a
12	2/34	8/34	0.08
24	2/34	6/34	0.260
36	0/34	0/34	1.00
48	0/34	0/34	1.00
72	0/34	0/34	1.00

^aP indicates significant value.

ESB: Erector spinae plane block; TEA: Thoracic epidural anaesthesia; MAP: Mean arterial pressure.