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Endoscopic evaluation is frequently performed before bariatric surgery to identify foregut pathology that may alter procedure selection. Transnasal endoscopy (TNE) is an alternative to esophagogastroduodenoscopy (EGD). The objective of this study was to compare TNE to EGD. Patients who underwent TNE or EGD before bariatric surgery from January 2012 through April 2019 were reviewed. Statistical analyses included Chi-square, Wilcoxon two-sample, and Fisher's exact tests. A p value  0.05 was considered significant. Three hundred and f

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Biomedical adhesives have been found to be an attractive alternative to suturing in several circumstances. However, to date most of the clinically approved formulations are based on synthetic and highly reactive toxic chemicals. In this work, we aimed to combine for the first time the bioactive properties of the cationic polysaccharide chitosan and its intrinsic electrostatic binding to negatively charged tissues with the biocompatible and clinically compliant enzymatic cross-linking scheme of fibrin glue. This synergistic activity led to the genera