Ultrasound-Guided Pudendal Nerve Block Combined with Propofol Deep Sedation versus Spinal Anesthesia for Hemorrhoidectomy: A Prospective Randomized Study

Table 1

Demographic data and duration of surgery.

Patient characteristics	Group SA (n = 60)	Group PNB (n = 58)	-value
Female/male	33/27	35/23	0.557
Age, y (SD)	41 (11)	40 (10)	0.742
Weight, kg (SD)	58.7 (8.7)	56.3 (7.8)	0.109
Height, cm (SD)	162 (6.5)	161 (6.8)	0.310
ASA status, I/II	35/25	30/28	0.472
Grades of hemorrhoids (III/IV), no. of patients	34/26	32/26	0.870
Operation time, minutes (SD)	43 (7)	44 (8)	0.306

Group SA: the patients received spinal anesthesia; Group PNB: the patients received bilateral pudendal nerve block combined with propofol sedation; ASA: American Society of Anesthesiologists; SD: standard deviation.