Copyright: ©Author(s) 2026.
World J Gastrointest Surg. Aug 27, 2026; 18(8): 118103
Published online Aug 27, 2026. doi: 10.4240/wjgs.118103
Published online Aug 27, 2026. doi: 10.4240/wjgs.118103
Table 1 Management at initial hospitalization
| Management | All | Occlusive | Nonocclusive mesenteric ischemia | Unclear | ||||
| Embolism1 | Thrombosis1 | Unclear1 | Inferior mesenteric artery | Superior mesenteric vein | ||||
| Number of patients | 203 | 11 | 60 | 36 | 30 | 17 | 12 | 37 |
| Median age at index hospitalization in years (interquartile range) | 74 (64-80) | 74 (70-84) | 78.5 (70-84) | 72.5 (62-82) | 77 (65-81) | 63 (51-71) | 79.5 (69-81) | 72 (64-80) |
| Revascularization | 45 | 7 | 25 | 8 | 1 | 4 | ||
| Revascularization and bowel resection | 19 | 1 | 15 | 3 | ||||
| Bowel resection | 71 | 3 | 14 | 13 | 12 | 6 | 6 | 17 |
| Conservative treatment | 68 | 6 | 12 | 18 | 11 | 5 | 16 | |
Table 2 The 3- and estimated 5-year overall and post-discharge survival and causes of death for subtypes of acute mesenteric ischemia, n (%)
| AMI subtype | Overall (including in-hospital deaths) survival (%), 95%CI | Post-discharge survival (%), 95%CI | Causes of death | |||||
| 3-year | Estimated | 3-year | Estimated | New AMI event | Other cardiovascular event | Miscellaneous causes of death | Unknown cause of death | |
| SMA embolism | 12.8 (5.7-29.1) | 12.8 (5.7-29.1) | 45.5 (23.8-86.8) | 45.5 (23.8-86.8) | - | 6 (100.0) | - | - |
| SMA thrombosis | 15.0 (10.6-21.1) | 10.8 (7.1-16.4) | 46.7 (35.6-61.2) | 33.5 (23.2-48.4) | 9 (20.0) | 17 (37.8) | 15 (33.3) | 4 (8.9) |
| SMA unclear occlusion | 14.3 (9.2-22.2) | 10.7 (6.2-18.5) | 47.2 (33.4-66.7) | 35.7 (22.3-57.1) | 4 (16.0) | 10 (40.0) | 6 (24.0) | 5 (20.0) |
| Inferior mesenteric artery occlusion | 40.0 (27.4-58.5) | 30.3 (18.3-50.1) | 53.3 (38.2-74.5) | 41.3 (26.3-64.7) | - | 10 (58.8) | 6 (35.3) | 1 (5.9) |
| Superior mesenteric vein occlusion | 52.0 (35.7-75.8) | 35.5 (28.8-72.0) | 76.5 (58.7-99.5) | 68.0 (47.9-96.5) | - | 1 (20.0) | 3 (60.0) | 1 (20.0) |
| Non-occlusive mesenteric ischemia | 19.0 (10.2-35.5) | 19.0 (10.2-35.5) | 66.7 (44.7-99.5) | 66.7 (44.7-99.5) | - | 2 (50.0) | 2 (50.0) | - |
| Unclear | 19.2 (13.3-27.7) | 16.3 (10.8-24.6) | 62.2 (48.3-79.9) | 53.1 (39.0-72.3) | 1 (5.0) | 8 (40.0) | 7 (35.0) | 4 (20.0) |
| P value | P < 0.001 | P < 0.001 | P = 0.3 | P = 0.1 | P = 0.278 | |||
Table 3 Univariable and multivariable analysis evaluating the risk factors for mortality for all patients with acute mesenteric ischemia
| Variable | Hazard ratio (95%CI) | P value |
| Univariable analysis | ||
| Sex (female) | 0.99 (0.68-1.41) | 0.936 |
| Age | 1.05 (1.03-1.07) | < 0.001 |
| Disability (yes) | 2.95 (2.05-4.24) | < 0.001 |
| Diabetes (yes) | 0.95 (0.55-1.64) | 0.867 |
| Smoking | ||
| Yes | 0.57 (0.31-1.06) | 0.074 |
| Quit after AMI | 0.39 (0.09-1.58) | 0.186 |
| Antithrombotic (yes) | 0.63 (0.42-0.93) | 0.020 |
| Bowel resection (yes) | 1.30 (0.68-2.48) | 0.422 |
| Age-adjusted Charlson index | 1.25 (1.16-1.34) | < 0.001 |
| AMI type | ||
| Unclear | 0.62 (0.37-1.02) | 0.057 |
| IMA occlusion | 0.73 (0.43-1.25) | 0.248 |
| NOMI | 0.31 (0.11-0.85) | 0.022 |
| SMV occlusion | 0.33 (0.13-0.82) | 0.016 |
| Multivariable analysis | ||
| Age | 1.04 (1.01-1.06) | < 0.001a |
| Disability (yes) | 1.86 (1.22-2.81) | 0.003a |
| Smoking | ||
| Yes | 0.70 (0.37-1.33) | 0.275 |
| Quit after AMI | 0.49 (0.11-2.17) | 0.347 |
| Antithrombotic (yes) | 0.40 (0.25-0.63) | < 0.001a |
| Age-adjusted Charlson index | 1.17 (1.06-1.28) | 0.001a |
| AMI type | ||
| Unclear | 0.78 (0.46-1.32) | 0.354 |
| IMA occlusion | 0.60 (0.34-1.05) | 0.073 |
| NOMI | 0.19 (0.06-0.56) | 0.002a |
| SMV occlusion | 1.01 (0.39-2.61) | 0.983 |
Table 4 Univariable and multivariable analysis evaluating the risk factors for mortality for patients with superior mesenteric artery thrombosis
| Variable | Hazard ratio (95%CI) | P value |
| Univariable analysis | ||
| Age | 1.04 (1.00-1.07) | 0.011 |
| Sex (female) | 0.83 (0.45-1.49) | 0.527 |
| Disability (yes) | 2.74 (1.48-5.08) | 0.001 |
| Smoking (yes) | 0.71 (0.21-2.31) | 0.569 |
| Hypertension (yes) | 1.78 (0.62-4.99) | 0.279 |
| Atherosclerosis (yes) | 0.68 (0.89-4.38) | 0.090 |
| Age-adjusted Charlson index | 1.16 (1.02-1.31) | 0.019 |
| Antithrombotic (yes) | 0.29 (0.12-0.64) | 0.002 |
| Revascularization (yes) | 0.84 (0.45-1.54) | 0.565 |
| Bowel resection (yes) | 5.06 (1.18-21.53) | 0.028 |
| Multivariable analysis | ||
| Age | 1.02 (0.96-1.08) | 0.429 |
| Disability (yes) | 6.62 (2.19-20.06) | < 0.001a |
| Atherosclerosis (yes) | 2.18 (0.51-9.22) | 0.288 |
| Antithrombotic (yes) | 0.07 (0.01-0.38) | 0.002a |
| Bowel resection (yes) | 1.83 (0.32-10.26) | 0.490 |
| Age-adjusted Charlson index | 0.90 (0.70-1.16) | 0.410 |
- Citation: Kase K, Koitmäe M, Reintam Blaser A, Tamme K, Talving P, Murruste M. Long-term outcomes following successful treatment of acute mesenteric ischemic event: A population-based observational study. World J Gastrointest Surg 2026; 18(8): 118103
- URL: https://www.wjgnet.com/1948-9366/full/v18/i8/118103.htm
- DOI: https://dx.doi.org/10.4240/wjgs.118103