Table 1.
Demographics of the study population, data presented as n (%), mean (SD), and median [minimum–maximum].
| Diagnosis ASBO at discharge N=382 | ||||||
|---|---|---|---|---|---|---|
| Total, N=510 | ASBO, N=382 (74.9%) | Definitive NOM, N=192 (50.3%) | Emergency surgery, N=71 (18.6%) | Delayed surgery, N=119 (31.1%) | Sig. P | |
| Sex | 246 (48.2) male | 190 (49.7) male | 96 (50.0) male | 36 (50.7) male | 58 (48.7) male | 0.961 |
| Age (year) | 67.57 (15.3) | 67.18 (15.9) | 66.20 (16.3) | 68.35 (14.8) | 68.05 (15.9) | 0.479 |
| WHO performance index | 0.688 | |||||
| 0 | 155 (30.4) | 119 (31.2) | 56 (29.9) | 24 (33.8) | 39 (32.8) | |
| 1 | 192 (37.6) | 147 (38.5) | 79 (41.1) | 23 (32.4) | 45 (37.8) | |
| 2 | 116 (22.7) | 83 (21.7) | 38 (19.8) | 17 (23.9) | 28 (23.5) | |
| 3 | 38 (7.5) | 27 (7.1) | 16 (8.3) | 5 (7.0) | 6 (5.0) | |
| 4 | 3 (0.6) | 2 (0.5) | 0 | 1 (1.4) | 1 (8.0) | |
| ASA classification | 0.018 | |||||
| 1 | 54 (10.6) | 45 (11.8) | 26 (13.5) | 7 (9.9) | 12 (10.1) | |
| 2 | 267 (52.4) | 202 (52.9) | 106 (55.2) | 27 (38.0) | 69 (58.0) | |
| 3 | 164 (32.2) | 117 (30.6) | 52 (27.1) | 31 (43.7) | 34 (28.6) | |
| 4 | 20 (3.9) | 14 (3.7) | 4 (2.1) | 6 (8.5) | 4 (3.4) | |
| Charlson comorbidity index | 3.00 [0–13] | 3.00 [0–13] | 3.00 [0–13] | 3.00 [0–11] | 3.00 [0–9] | 0.419 |
| 0 | 146 (28.6) | 112 (29.3) | 59 (30.7) | 22 (31.0) | 31 (26.1) | 0.971 |
| 1 | 46 (9.0) | 34 (8.9) | 17 (8.9) | 5 (7.0) | 12 (10.1) | |
| 2 | 89 (17.5) | 70 (18.3) | 38 (19.8) | 12 (16.9) | 20 (16.8) | |
| 3 | 104 (20.4) | 79 (20.7) | 37 (19.3) | 15 (21.1) | 27 (22.7) | |
| ≥4 | 125 (24.5) | 87 (22.8) | 41 (21.4) | 17 (23.9) | 29 (24.4) | |
| Number of previous ASBO episodes | <0.001 | |||||
| 0 | 422 (82.7) | 311 (81.4) | 140 (72.9) | 65 (91.5) | 106 (89.1) | |
| 1 | 53 (10.4) | 43 (11.3) | 29 (15.1) | 4 (5.6) | 10 (8.4) | |
| 2 | 23 (4.5) | 17 (4.5) | 14 (7.3) | 1 (1.4) | 2 (1.7) | |
| ≥3 | 12 (2.4) | 11 (2.9) | 9 (4.7) | 1 (1/4) | 1 (0.8) | |
| ≥1 Operative management | 48 (9.4) | 40 (10.5) | 30 (15.6) | 3 (4.2) | 7 (5.9) | 0.004 |
| NOM only | 56 (11.0) | 46 (12.0) | 36 (18.8) | 3 (4.2) | 7 (5.9) | <0.001 |
| Number of previous operations | <0.001 | |||||
| 0 | 61 (12.0) | 44 (11.5) | 10 (5.2) | 17 (23.9) | 17 (14.3) | |
| 1 | 178 (34.9) | 133 (34.8) | 61 (31.8) | 27 (38.0) | 45 (37.8) | |
| 2 | 121 (23.7) | 91 (23.8) | 46 (24.0) | 11 (15.5) | 34 (38.6) | |
| ≥3 | 150 (29.4) | 114 (29.8) | 75 (39.1) | 16 (22.5) | 23 (19.3) | |
| ≥1 Laparotomy | 320 (62.7) | 247 (64.7) | 141 (73.4) | 36 (50.7) | 70 (58.8) | 0.001 |
| Laparoscopy only | 41 (8.0) | 28 (7.3) | 10 (5.2) | 7 (9.9) | 11 (9.2) | 0.276 |
| Type of previous surgery | 0.001 | |||||
| No abdominal surgery | 61 (12.0) | 44 (11.5) | 10 (5.2) | 17 (23.9) | 17 (14.3) | |
| Cholecystectomy | 11 (2.2) | 8 (2.1) | 4 (2.1) | 2 (2.8) | 2 (1.7) | |
| Gynecological with uterus extirpation | 27 (5.3) | 19 (5.0) | 7 (3.6) | 3 (4.2) | 9 (7.6) | |
| Gynecological no uterus extirpation | 20 (3.9) | 17 (4.5) | 6 (3.6) | 4 (5.6) | 7 (5.9) | |
| Liver | 0 | 0 | 0 | 0 | 0 | |
| Appendectomy | 47 (9.2) | 40 (10.5) | 16 (8.3) | 9 (12.7) | 15 (2.6) | |
| Urological | 21 (4.1) | 18 (4.7) | 9 (4.7) | 3 (4.2) | 6 (5.0) | |
| Upper gastrointestinal | 17 (3.3) | 11 (29) | 5 (2.6) | 4 (5.6) | 2 (1.7) | |
| Retroperitoneal | 0 | 0 | 0 | 0 | 0 | |
| Other | 118 (23.1) | 91 (23.8) | 50 (26.0) | 19 (26.8) | 22 (18.5) | |
| Colon | 139 (27.3) | 98 (25.7) | 60 (31.3) | 7 (9.9) | 31 (26.1) | |
| Rectum | 49 (9.6) | 36 (9.4) | 25 (13.0) | 3 (4.2) | 8 (6.7) | |
ASA, American Society of Anesthesiologists physical status classification; ASBO, adhesive small bowel obstruction; NOM, nonoperative management; SD, standard deviation; WHO, World Health Organization.