الفهرس 
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Abstract
Bariatric surgery has emerged recently as an ideal therapeutic strategy, especially in morbid obesity, when medical therapy based mainly on diet fails.
Two surgical methods are used for achieving weight loss in obese patients: bypass procedures in which mal-absorption is achieved by bypassing segments of the gastrointestinal (GI) tract, and restrictive procedures in which stomach volume is reduced to induce early satiety. Proponents of bariatric surgery have instead promoted different types of restrictive procedures (combined with a bypass element sometimes) to induce weight reduction, including Roux-en-Y gastric bypass, laparoscopic adjustable gastric banding, and laparoscopic sleeve gastrectomy.
SG complications include leak/abscess, hemorrhage, splenic injury, and Porto-mesenteric occlusion. RYGB complications include leak/abscess, gastro-gastric fistula, small bowel obstruction, internal hernia, and intussusception. Although GB is waning in popularity, radiologists continue to see the legacy of these patients and complications include gastric prolapse, band erosion, and port/tubing mechanical failures.
This prospective descriptive study was carried out during the period from May 2020 to March 2022 on 30 patients (25females, 5males) who had bariatric surgeries; their age ranges from 18 to 55 years with suspected post-operative complications based on clinical and/or radiological suspicion, referred to the Radiodiagnosis department Alexandria Main University Hospital for multi-detector computed tomography evaluation.
All patients included in the study were subjected to:
I- Complete history taking
II- Laboratory study: it included all routine laboratory work up as well as coagulation profile in cases managed by interventional procedures.
III- Ultrasound abdomen and pelvis
IV- Computed tomography abdominal scan :
a. Patient preparation
b. Routine non-contrast CT scan for upper abdomen with imaging done from diaphragm to symphysis pubis in supine position,
c. Then CT scan with oral contrast.
V- According to patient complaints other imaging modalities had been chosen as follows:
• Contrast-enhanced computed tomography (CE-CT).
The aim of this study was to assess the role of multi-detector CT in early detection and management of complications after bariatric surgeries.
There is a strong evidence for the relationship of obesity to a number of comorbidities as high cholesterol level, back pain, type 2 DM, insulin resistance, obstructive sleep apnea , hypertension, osteoarthritis and hyperuricemia.
In this study, sleeve was the most common operation done in 27 patients, followed by gastric band in 2 patients and gastric bypass in 1 patient .
Gastric leak was the most common complication found in 10 patients followed by pleural effusion and intra-abdominal abscess in 5 patients, splenic infarct in 4 patients, PMVO and sub-capsular hepatic abscess in 3 patients, bowel ischemia, gastro-bronchial fistula, hematoma and indirect colonic fistula were found in 1 patient each.
Among the studied SG cases, 9 patients who had gastric leak revealed that proximal third of the stomach was the most common site for leak and was found in 8 cases and 1 case of leak was found at distal third of the stomach.