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Background: Sleeve gastrectomy has quickly become the most commonly performed bariatric surgery. In light of its increasing popularity, the prevalence of gastric sleeve stenosis (GSS) continues to rise. Management with serial pneumatic dilation is highly successful but underutilized, due to lack of quantitative diagnostic criteria. Aims: We aimed to develop quantifiable endoscopic criteria to characterize GSS based on (1) ratio of narrowest to widest gastric lumen diameter, (2) scope angulation/trajectory required for passage, and (3) presence of bilious fluid pooling in the proximal sleeve and compare it to endoluminal functional lumen imaging probe (EndoFLIP) diameter and distensibility indices (DI) and endoscopic documentation of gastric lumen morphology. Methods: We retrospectively reviewed a prospectively maintained database of patients undergoing endoscopy to assess for GSS. Endoscopic images were reviewed in a blinded fashion by two bariatric endoscopists. The narrowest and widest part of the gastric lumen diameters were noted on each image (Figure 1A), in addition to a hypothetical trajectory required for scope passage (Figure 1B). Using image processing software (ImageJ,

Objectives Primary arterial dissection in peripheral arteries of the extremities is exceedingly rare. Isolated dissection of peripheral arteries (femoropopliteal or popliteal) primarily has been reported in aneurysmal arteries. Spontaneous dissection limited to a non-aneurysmal popliteal artery was first described in 1999 by Rabkin et al. Methods We report a case of a non-aneurysmal popliteal artery dissection to emphasize its rare condition. Results A 61-year-old man consulted because of sudden onset of pain and cramps in his left leg after walking 60 metres. A high-resolution duplex ultrasonography could identify a dissection of a non-aneurysmal popliteal artery. Computed tomography angiography could confirm the diagnosis. An operative repair was scheduled 3 weeks later and the patient was put on antiplatelet medication (acetylsalicylic acid 80 mg 1x/day) in the meantime. After 3 weeks the dissection was resolved spontaneously and the patient didn’t undergo surgery. Check-ups remained reassuring and we scheduled a duplex ultrasonography within one year. Antiplatelet medication was continued. Conclusions Spontaneous dissection limited to a non-aneurysmal popliteal artery is extremely rare. Diagnosis can be made by duplex ultrasonography and/or CT angiography. Treatment options consist of conservative management or operative treatment. Operative treatments consist of an open repair with bypass or interposition graft or minimal invasive endovascular stent grafting. A standardized protocol for conservative treatment in this specific condition is not available. Annual follow-up of these patients is essential.