The Clinical Impact of Pectoral Nerve Block in an ‘Enhanced Recovery After Surgery’ Program in Breast Surgery

Figures & data

Table 1. Descriptive characteristics of the two study groups.

	Group 1 (n = 57)	Group 2 (n = 57)	p-value
Age (years), mean (SD)	65.3 ± 14.7	63.1 ± 13.7	0.41
BMI (kg/m^2), mean (SD)	22.8 ± 2.8	23.9 ± 3.1
Surgical time (min), mean (SD)	65.80 ± 20.93	67.53 ± 19.61	0.27
Type of anesthesia			0.32
– Balanced, n (%)	26 (45.6)	23 (40.4)
– TIVA, n (%)	31 (54.4)	34 (59.6)
Type of surgery			0.97
Mastectomies with axillary dissection, n (%)	21 (36.8)	20 (35.0)
Mastectomies, n (%)	6 (10.5)	7 (12.3)
Quadrantectomies with axillary dissection, n (%)	22 (38.6)	23 (40.3)
Quadrantectomies + LS, n (%)	8 (14.1)	7 (12.2)
Tumor location in quadrantectomies			0.98
UOQ/LOQ, n (%)	11 (36.6) / 8 (26.7)	12 (40.) / 8 (26.7)
UIQ/LIQ, n (%)	5 (16.7) / 6 (20)	4 (13.3) / 6 (20)

LIQ: Lower inner quadrant; LOQ: Lower outer quadrant; LS: Sentinel lymph node; SD: Standard deviation; TIVA: Total intravenous anesthesia; UIQ: Upper inner quadrant; UOQ: Upper outer quadrant.

Table 2. Postoperative data.

Timepoint	NRS values (%)	Group 1 (n = 57)	Group 2 (n = 57)	p-value
At 8 h	0	75.00	70.18	0.7
	1	17.88	17.54
	2	5.35	7.02
	3	0	3.51
	4	1.77	1.75
At 16 h	0	50.94	62.50	0.49
	1	28.30	16.07
	2	18.87	17.85
	3	1.89	1.79
	4	0	1.79
At 24 h	0	67.35	66.17	0.63
	1	22.45	27.20
	2	8.16	4.53
	3	2.04	2.10
	4	0	0
At 32 h	0	47.82	78.26	0.038
	1	34.78	15.22
	2	15.22	4.35
	3	2.18	2.17
	4	0	0
At 40 h	0	69.23	68.18	0.99
	1	23.08	22.72
	2	7.69	9.10
	3	0	0
	4	0	0
At 48 h	0	54.29	61.11	0.17
	1	40.00	16.67
	2	5.71	11.10
	3	0	5.56
	4	0	5.56
Opioids consumption (mg)		5 ± 0.1^†	17 ± 0.2^†	0.002
LOS (days)		1.2 ± 1^†	1.6 ± 1.1^†	0.03
LOS (h)		31.7 ± 22.5^†	41.8 ± 25.6^†	0.03
Adverse events (n)		3 ± 0.05^†	2 ± 0.03^†	0.65

† Data are expressed as median and standard deviation; NRS values are expressed as percentages calculated in patients with available data according to LOS.

LOS: Length of stay; NRS: Numeric rating scale.