S. Abu-Abeid, Tel-Aviv, IL

Evaluate the specific postoperative radiological complications of mini gastric bypass (MGB) on abdominal CT scans and their association with patients’ symptoms and signs.

Material and methods

A single center retrospective study conducted between the years 2014-2019. Demographics, operative and postoperative data were collected from medical records. Post-surgical abdominal CT scans were evaluated for complications.

Results

The cohort consisted of 478 patients who underwent MGB, of which- 89 patients underwent postoperative abdominal CT scan with a total of 120 cases. The total CT yield for radiological complications was 56%. There was no significant difference in CT yield between the early (<30 days) and late (>30 days) postoperative period (50% vs 66%, p=0.09).Six radiological complications were identified- the most prevalent were collection/abscess (50%) followed by hematoma (16%). Using multivariate model, the significant predictors for radiological complications were tachycardia (OR=13.6), shivers (OR=24.3), female gender (OR=4.1) and age (OR=1.04), [p<0.01]. Marginal ulcers (4.2%) and chronic fistulas (8.3%) are important complications that were not visualized under CT.

Conclusion

MGB has become a popular alternative procedure for bariatric surgery. Radiologists need to know the normal postsurgical anatomy of MGB but also what complications to encounter.

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