Thiruganasambandamoorthy 2016 Canadian Syncope Risk Score

Thiruganasambandamoorthy 2016 Canadian Syncope Risk Score: vasovagal predisposition −1, heart disease +1, any ED SBP <90 or >180 +2, troponin above the 99th percentile +2, QRS axis < −30° or >100° +1, QRS duration >130 ms +1, QTc >480 ms +2, ED vasovagal diagnosis −2, ED cardiac diagnosis +2. Score −3 to 11. Caller assigns flags and ECG numbers. Not a medical device, not a syncope diagnosis, and not a disposition protocol.

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Endpoint

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

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Example input (from the provider)

{
  "body": {
    "items": [
      {
        "ed_cardiac_syncope": false,
        "ed_vasovagal_syncope": false,
        "elevated_troponin": false,
        "heart_disease": false,
        "predisposition_vasovagal": false,
        "qrs_axis_deg": 0,
        "qrs_duration_ms": 80,
        "qtc_ms": 400,
        "sbp_lt_90_or_gt_180": false
      },
      {
        "ed_cardiac_syncope": false,
        "ed_vasovagal_syncope": false,
        "elevated_troponin": false,
        "heart_disease": false,
        "predisposition_vasovagal": false,
        "qrs_axis_deg": 0,
        "qrs_duration_ms": 80,
        "qtc_ms": 400,
        "sbp_lt_90_or_gt_180": 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": {
                  "ed_cardiac_syncope": {
                    "description": "ED diagnosis of cardiac syncope (Thiruganasambandamoorthy 2016). true or false. Scores 2 if true. Cannot be true together with ed_vasovagal_syncope.",
                    "type": "boolean"
                  },
                  "ed_vasovagal_syncope": {
                    "description": "ED diagnosis of vasovagal syncope (Thiruganasambandamoorthy 2016). true or false. Scores -2 if true. Cannot be true together with ed_cardiac_syncope.",
                    "type": "boolean"
                  },
                  "elevated_troponin": {
                    "description": "Troponin above the 99th percentile (Thiruganasambandamoorthy 2016). true or false. Scores 2 if true.",
                    "type": "boolean"
                  },
                  "heart_disease": {
                    "description": "History of heart disease (Thiruganasambandamoorthy 2016). true or false. Scores 1 if true.",
                    "type": "boolean"
                  },
                  "predisposition_vasovagal": {
                    "description": "Predisposition to vasovagal syncope (Thiruganasambandamoorthy 2016). true or false. Scores -1 if true.",
                    "type": "boolean"
                  },
                  "qrs_axis_deg": {
                    "description": "QRS axis in degrees (-180 to 180). Scores 1 when < -30 or > 100 (Figure 2 / abstract; not table 110). -30 and 100 do not score; -31 and 101 do.",
                    "type": "number"
                  },
                  "qrs_duration_ms": {
                    "description": "QRS duration in milliseconds (40-300). Scores 1 when >130. 130 does not score; 131 does.",
                    "type": "number"
                  },
                  "qtc_ms": {
                    "description": "QTc in milliseconds (200-800). Scores 2 when >480. 480 does not score; 481 does.",
                    "type": "number"
                  },
                  "sbp_lt_90_or_gt_180": {
                    "description": "Any ED systolic BP <90 or >180 mm Hg (caller-assigned; SBP 90 and 180 are not out of range). true or false. Scores 2 if true. magent does not take a numeric SBP.",
                    "type": "boolean"
                  }
                },
                "required": [
                  "predisposition_vasovagal",
                  "heart_disease",
                  "sbp_lt_90_or_gt_180",
                  "elevated_troponin",
                  "qrs_axis_deg",
                  "qrs_duration_ms",
                  "qtc_ms",
                  "ed_vasovagal_syncope",
                  "ed_cardiac_syncope"
                ],
                "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"
}

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