Table 1

Demographic characteristics, comorbidities, preoperative body mass index and intraoperative variables for patients undergoing bariatric surgery with or without intraperitoneal local anesthesia

VariableGroup; no. (%) of patients*p value
IPLA
n = 46
Control
n = 46
Preoperative
 Age, mean ± SD, yr44.4 ± 9.4245.1 ± 9.440.8
 Female gender38 (83)39 (85)0.8
 Body mass index, mean ± SD48.6 ± 6.1045.8 ± 6.070.04
 History of pain syndromes2 (4)9 (20)0.02
 History of asthma14 (30)6 (13)0.04
 History of cardiovascular disease15 (33)24 (52)0.06
 History of arthritis22 (48)22 (48)1.0
 Receiving diabetic medications12 (26)18 (39)0.2
 Receiving pain medications20 (43)22 (48)0.7
 Cesarean section9 (20)12 (26)0.46
 Laparoscopic cholecystectomy13 (28)9 (20)0.3
 Any other prior operation44 (96)44 (96)1.0
Intraoperative
 Length of operation, mean ± SD, h1.85 ± 0.381.86 ± 0.400.9
 Liver laceration3 (6)5 (11)0.7
 Cholecystectomy0 (0)1 (2)1.0
  • IPLA = intraperitoneal local anesthetic; SD = standard deviation.

  • * Except where noted otherwise.