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Table 3 Procedure-related details, length of stay, reoperation, and readmission

From: Effect of preoperative versus postoperative use of transversus abdominis plane block with plain 0.25 % bupivacaine on postoperative opioid use: a retrospective study

Variables Overall
(N = 262)
Preoperative TAP
(n = 240)
Postoperative TAP
(n = 22)
P-value
Surgical procedure, no. (%)   0.554
 Surg_type1a 195 (74.4) 178 (74.2) 17 (77.3)  
 Surg_type2b 38 (14.5) 36 (15.0) 2 (9.1)
 Surg_type3c 11 (4.2) 9 (3.8) 2 (9.1)
 Surg_type4d 18 (6.9) 17 (7.1) 1 (4.5)
Surgical approach, no. (%)   0.439
 Open 69 (26.3) 62 (25.8) 7 (31.8)  
 Laparoscopic 79 (30.2) 75 (31.2) 4 (18.2)
 Robotic 114 (43.5) 103 (42.9) 11 (50.0)
Procedure details
 Emergent procedure, no. (%) 2 (0.8) 1 (0.4) 1 (4.5) 0.161
 Procedure length, minutes (SD) 208.38 (96.27) 207.79 (97.16) 214.82 (87.76) 0.655
 EBL in mL, mean (SD) 100.05 (185.54) 100.43 (190.96) 95.91 (113.14) 0.855
 LOS in days, mean (SD) 4.92 (5.95) 4.82 (5.62) 6.00 (8.87) 0.836
 Readmission rate, no. (%) 29 (11.2) 28 (11.8) 1 (4.5) 0.485
 Reoperation rate, no. (%) 5 (1.9) 4 (1.7) 1 (4.5) 0.901
  1. EBL estimated blood loss, LOS length of day, SD standard deviation, TAP transversus abdominis plane
  2. asurg_type1 includes hemicolectomy, sigmoidectomy, low anterior resection, total abdominal colectomy and abdominoperineal resection
  3. bsurg_type2 includes ostomy reversal
  4. csurg_type3 includes ostomy creation
  5. dsurg_type4 includes appendectomy, exploratory laparotomy, lysis of adhesion, and rectopexy