Pretreatment with Pectoral Nerve Block II Is Effective for Reducing Pain in Patients Undergoing Thoracoscopic Lobectomy: A Randomized, Double-Blind, Placebo-Controlled Trial

Table 2

Operation-related data of two groups.

Variables	Groups		value
	PECS II	Placebo
Length of incision, median (IQR), cm	3.00 (3-4)	3.00 (3-4)	>0.05
Ports ( (%))
Multiple ports	5 (25)	11 (55)	>0.05
Single port	15 (75)	9 (45)
Procedure ( (%))
Lobotomy	3 (15)	8 (40)	>0.05
Segmentectomy	9 (45)	3 (15)
Partial resection	8 (40)	9 (45)
Volume of drainage fluid, , ml			>0.05
Chest tube insertion, , d			>0.05
Surgery time, , min			>0.05
Blood, median (IQR), ml	20.00 (10-30)	30.00 (20-45)	>0.05

Values in this term are presented as deviations, median (interquartile range), or numbers (percentage). Length of incision: the central operation hole for multiple port VATS in both two groups. Volume of drainage fluid: the fluid in the first 24 h in each group has been collected.