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Table 6 Effects of TTP-PECS and TPVB on pain-related mediators

From: Ultrasound-guided transversus thoracic muscle plane-pectoral nerve block for postoperative analgesia after modified radical mastectomy: a comparison with the thoracic paravertebral nerve block

Indicator

Group

Before surgery

Immediately after surgery

12 h after surgery

24 h after surgery

PGE2 (ng/l)

TTP-PECS group

28.60 ± 3.82

34.53 ± 5.69#

38.18 ± 6.25#*

42.38 ± 6.81#

TPVB group

28.51 ± 3.81

34.80 ± 5.96#

46.66 ± 8.50#

42.66 ± 8.35#

P value

0.92

0.84

0.00

0.87

NPY (μg/ml)

TTP-PECS group

79.01 ± 12.55

122.07 ± 15.74#

142.29 ± 22.93#*

149.11 ± 23.02#

TPVB group

79.53 ± 12.39

122.67 ± 16.91#

160.22 ± 21.78#

148.13 ± 22.16#

P value

0.86

0.87

0.00

0.85

β-Endorphin (ng/l)

TTP-PECS group

65.14 ± 6.69

69.64 ± 6.04#

74.37 ± 5.71#*

79.97 ± 5.67#

TPVB group

64.36 ± 6.02

69.50 ± 6.72#

83.72 ± 8.17#

79.87 ± 7.76#

P value

0.59

0.92

0.00

0.95

  1. Compared with TPVB, TTP-PECS treatment significantly decreased the levels of pain-related mediators at 12 h after surgery. Data are expressed as mean ± SD (39 in the TTP-PECS group and 38 in the TPVB group)
  2. #P < 0.05, versus before surgery
  3. *P < 0.05, versus the TPVB group