We aim to review the available literature on obese patients treated with bariatric procedures, in order to assess their effect on the metabolic and gut microbiota profiles. A systematic literature search was performed in PubMed, Cochrane library, and Scopus databases, in accordance with the PRISMA guidelines. Twenty-two studies (562 patients) met the inclusion criteria. This study points to significant amelioration of postoperative levels of glucose, insulin, triglycerides, total cholesterol, LDL, HDL, HOMA-IR, food intake, and diabetes remission. Branched-chain amino acids (BCAAs) decreased, while trimethylamine-n-oxide (TMAO); glucagon-like peptide 1, 2 (GLP-1, GLP-2); and peptide YY (PYY) increased postoperatively. Postoperative gut microbiota was similar to that of lean and less obese objects. Well-designed randomized trials are necessary to further assess the host metabolic-microbial cross-talk after bariatric procedures.

We aim to review the available literature on obese patients treated with ursodeoxycholic acid (UDCA) in order to prevent gallstone formation after bariatric surgery. A systematic literature search was performed in PubMed, Cochrane library, and Scopus databases, in accordance with the PRISMA guidelines. Eight studies met the inclusion criteria incorporating 1355 patients. Random-effects meta-analysis showed a lower incidence of gallstone formation in patients taking UDCA. Subgroup analysis reported fewer cases of gallstone disease in the UDCA group in relation to different bariatric procedures, doses of administered UDCA, and time from bariatric surgery. Adverse events were similar in both groups. Fewer patients required cholecystectomy in UDCA group. No deaths were reported. The administration of UDCA after bariatric surgery seems to prevent gallstone formation.

The penetration of bariatric surgery in the medical community remains limited, despite its proven effectiveness in facilitating sustained weight loss and resolving several obesity-related comorbidities. A great effort should be made to inform health-care providers about the evolution of bariatric procedures, the potential benefits they offer, and the existence of certified bariatric centers. This will allow doctors to provide optimum health care to patients who could benefit from bariatric surgery.

The prevalence of hair loss was 56% 6 months after LSG. Preoperative monitoring and counseling of these micronutrients may be a preventive and therapeutic measure.

Management of hydatid disease carries a substantial risk of complications and recurrence. The ultimate goal of surgery is to kill the parasites, evacuate the cyst, remove the germinal layer, and obliterate the residual cavity all while preserving the healthy liver tissue. In endemic areas, a conservative approach is preferred. The open surgeries have a substantial risk of complications, such as bile leakage, parasite contamination, and presence of dead spaces, in which an abscess can form. These complications then have to be managed with more radical surgical approaches. The most commonly used surgical approaches are pericystectomy, partial pericystectomy, and even hepatic resection. With the right indications, subadventitial cystectomy has low postoperative complication, mortality, and recurrence. The condition of the cyst and the patient, the general status of the patient and the cyst size, location, and pathology are factors that indicate the optimal surgical approach.

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