Research Article
Is Nighttime Really Not the Right Time for a Laparoscopic Cholecystectomy?
Table 2
Patient clinicopathologic and operative characteristics; comparing out-of-hours procedures to those during business hours.
| | Variable | Number () | | | Out-of-hours (n=145) | During Business Hours (n=1408) | p-value |
| | Patient characteristics | | | |
| | Gender (female) | 85 (58.6) | 903 (64.1) | 0.19 | | Age (median [range]) | 60 | 55 | 0.012 | | Previous abdominal surgery | | | | | None | 111 (76.5) | 1064 (75.6) | 0.22 | | Laparoscopic | 15 (10.3) | 204 (14.5) | | | Laparotomy | 19 (13.1) | 138 (9.8) | |
| | Preoperative details | | | |
| | Indication for surgery | | Bile stone colics | 23 (15.9) | 1032 (73.3) | <0.001 | | Acute cholecystitis | 111 (76.6) | 84 (6.0) | | | Other | 11 (7.6) | 315 (22.4) | | | Timing of surgery | | | | | Elective | 0 (0) | 1342 (95.3) | <0.001 | | Emergency | 145 (100) | 67 (4.7) | |
| | Perioperative variables | | | |
| | Usage of antibiotics | | | | | No | 36 (24.8) | 935 (66.4) | <0.001 | | Yes–prior to operation | 101 (69.7) | 299 (21.2) | | | Yes–after bile spill | 8 (5.5) | 173 (12.3) | | | Surgeon | | | | | Surgical resident | 33 (22.8) | 938 (66.6) | <0.001 | | Surgical staff | 112 (77.2) | 469 (33.3) | | | Critical View of Safety mentioned | 125 (86.2) | 1330 (94.5) | 0.020 | | Bile spill | 62 (42.8) | 472 (33.5) | 0.027 | | Conversion to laparotomy | 14 (9.7) | 28 (2.0) | <0.001 | | Operative Time (median [range]) | 70 | 54 | 0.033 | | Estimated Blood Loss (median [range]) | 30 | 10 | <0.001 |
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