“According to our results, a CT scan triggered by clinical suspicion must be considered the first-line procedure to detect a postoperative leak following primary sleeve gastrectomy or Roux-en-Y gastric bypass.”

“The pooled sensitivity was 54% for UGI (95% CI 34-74) with a high heterogeneity (I² = 99.8%, p < .001), whereas CT scan showed a pooled sensitivity of 91% (95% CI 89-93) significantly higher than sensitivity of UGI series (p < 0.01), with a high heterogeneity (I² = 98.9%, p < .001). In symptomatic patients the pooled sensitivity of UGI series was significantly lower than sensitivity of CT scan [49% (95% CI 31-68) vs 94% (95% CI 92-96), p < 0.01]. PPV showed a significant difference between UGI series and CT scan (54 vs 100%, p < 0.01). Specificity for UGI series was 98.6%, and specificity for CT scan was 99.7% (p = ns); the mean NPV was 96 and 98% for UGI series and CT scan (p = ns).”

Musella M, et al . Efficacy of Postoperative Upper Gastrointestinal Series (UGI) and Computed Tomography (CT) Scan in Bariatric Surgery: a Meta-analysis on 7516 Patients. Obes Surg. 2018 Aug;28(8):2396-2405. Full Text for Emory Users