The LA grading for reflux esophagitis is different from other gradings of the affiliation because it is newer, according to Patient. The main benefits of the LA grading are a more objective approach to grading the results of the endoscopic investigation and more specific descriptions of each grade.
The most commonly used grading system for the problem is the Savary-Miller system. It uses a five-point grading system, compared to the four-point system used by the LA grading. The Savary-Millar system discusses the results of an endoscopic investigation in terms of the amount of erosions present and the presence of other details, such as ulcers, stenosis or esophageal shortening, explains GastroHep.com. However, this system does not give a specific number, describing the findings in terms of multiple erosions. For the condition to be defined as a Grade 1, one or multiple erosions can be present, with the erosions being either erythematous or exudative.
The LA system looks for the same indications but is more specific in both the number and size of the findings and the grade assigned. For example, Grade A mucosal breaks must be no longer than 5 millimeters and none can extend between the tops of the mucosal folds, illustrates Patient.