Lundell 1999 Table 1 Los Angeles classification

Lundell 1999 Table 1 Los Angeles classification. Caller-assigned flags. none if no mucosal break (not minimal changes); D if break(s) involve ≥75% of circumference; C if continuous between fold tops but <75%; B if longest break >5 mm not between fold tops; A if ≤5 mm not between fold tops. magent does not interpret images. Not Savary-Miller, GERD diagnosis, Barrett/stricture, or 1994 LA (D was fully circumferential). Not a medical device.

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

POST https://api.magentlab.com/api/calc/la_grading

Our checks, last 30 days

Example input (from the provider)

{
  "body": {
    "items": [
      {
        "circumference_ge_75_percent": false,
        "continuous_between_folds": false,
        "longest_break_gt_5_mm": false,
        "mucosal_break": false
      },
      {
        "circumference_ge_75_percent": false,
        "continuous_between_folds": false,
        "longest_break_gt_5_mm": false,
        "mucosal_break": false
      }
    ]
  },
  "method": "POST",
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "additionalProperties": false,
          "properties": {
            "items": {
              "items": {
                "properties": {
                  "circumference_ge_75_percent": {
                    "description": "Mucosal break(s) involve at least 75% of the oesophageal circumference, as assigned by the caller (Lundell 1999 Table 1 grade D; the 1999 revision, not the 1994 fully circumferential proposal). true or false. Required even when mucosal_break is false (does not change none). magent does not interpret endoscopy images.",
                    "type": "boolean"
                  },
                  "continuous_between_folds": {
                    "description": "A mucosal break is continuous between the tops of two or more mucosal folds, as assigned by the caller (Lundell 1999 Table 1 grade C). true or false. Required even when mucosal_break is false (does not change none). magent does not interpret endoscopy images.",
                    "type": "boolean"
                  },
                  "longest_break_gt_5_mm": {
                    "description": "Longest mucosal break more than 5 mm long, as assigned by the caller (Lundell 1999 Table 1 grade B vs A). true or false. Required even when mucosal_break is false (does not change none). magent does not measure lesions.",
                    "type": "boolean"
                  },
                  "mucosal_break": {
                    "description": "One or more mucosal breaks present, as assigned by the caller. Lundell 1999 defines a mucosal break as an area of slough or erythema with a discrete line of demarcation from adjacent more normal-looking mucosa. true or false. If false, la_grade is none (no LA A-D; not minimal changes). magent does not interpret endoscopy images.",
                    "type": "boolean"
                  }
                },
                "required": [
                  "mucosal_break",
                  "longest_break_gt_5_mm",
                  "continuous_between_folds",
                  "circumference_ge_75_percent"
                ],
                "type": "object"
              },
              "maxItems": 25,
              "minItems": 1,
              "type": "array"
            }
          },
          "required": [
            "items"
          ],
          "type": "object"
        },
        "headers": {
          "additionalProperties": {
            "type": "string"
          },
          "type": "object"
        },
        "method": {
          "const": "POST",
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

This page as JSON