Los Angeles (LA) Grading of EsophagitisLoading...Endoscopic findingsMucosal break(s) < or = 5 mm, without continuity across mucosal folds+1Mucosal break(s) > 5 mm, without continuity across mucosal folds+2Mucosal break(s) continuous between > or = 2 mucosal folds, involving < 75% of the esophageal circumference+3Mucosal break(s) involving > or = 75% of the esophageal circumference+4适用指征洞见与注意事项