Flowchart of suggested diagnosis and management.
EGD, esophagogastroduodenoscopy; EGJOO, esophagogastric junction outflow obstruction; FLIP, functional lumen imaging probe; LES, lower esophageal sphincter; PD, pneumatic dilation; POEM, peroral endoscopic myotomy; TBE, timed barium esophagram.
aComputed tomography scan or endoscopic ultrasound.