Schmidt 2015 SAVE-score from Table 4 integer cells plus constant −6

Schmidt 2015 SAVE-score from Table 4 integer cells plus constant −6. Age, weight, additive diagnoses, chronic renal failure, acute liver/CNS/renal failure, intubation hours, PIP ≤20, cardiac arrest, diastolic BP ≥40, pulse pressure ≤20, bicarbonate ≤15. Class I–V hospital survival 75/58/42/30/18%. Range −35 to 17. Not a VA-ECMO assignment. Not modified SAVE.

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Endpoint

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

Our checks, last 30 days

Example input (from the provider)

{
  "body": {
    "items": [
      {
        "acute_renal_failure": false,
        "age": 70,
        "bicarbonate_mmol_l": 24,
        "chronic_renal_failure": false,
        "cns_dysfunction": false,
        "congenital_heart_disease": false,
        "diastolic_bp_mm_hg": 35,
        "intubation_hours": 5,
        "liver_failure": false,
        "myocarditis": false,
        "pip_cmh2o": 25,
        "post_heart_or_lung_transplant": false,
        "pre_ecmo_cardiac_arrest": false,
        "pulse_pressure_mm_hg": 40,
        "refractory_vt_vf": false,
        "weight_kg": 95
      },
      {
        "acute_renal_failure": false,
        "age": 70,
        "bicarbonate_mmol_l": 24,
        "chronic_renal_failure": false,
        "cns_dysfunction": false,
        "congenital_heart_disease": false,
        "diastolic_bp_mm_hg": 35,
        "intubation_hours": 5,
        "liver_failure": false,
        "myocarditis": false,
        "pip_cmh2o": 25,
        "post_heart_or_lung_transplant": false,
        "pre_ecmo_cardiac_arrest": false,
        "pulse_pressure_mm_hg": 40,
        "refractory_vt_vf": false,
        "weight_kg": 95
      }
    ]
  },
  "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": {
                  "acute_renal_failure": {
                    "description": "Acute pre-ECMO renal failure (Table 4, \u22123): creatinine >1.5 mg/dL with or without RRT. Distinct from chronic_renal_failure. May stack. true or false. Caller-assigned.",
                    "type": "boolean"
                  },
                  "age": {
                    "description": "Age in years (18-120). Schmidt 2015 Table 4: 18\u201338 \u2192 7, 39\u201352 \u2192 4, 53\u201362 \u2192 3, \u226563 \u2192 0. Adult SAVE-score; magent does not assign pediatric VA-ECMO.",
                    "type": "integer"
                  },
                  "bicarbonate_mmol_l": {
                    "description": "Serum bicarbonate in mmol/L before ECMO (1-50). Worst value within 6 h. Table 4: \u226415 \u2192 \u22123, otherwise 0. magent does not measure HCO3.",
                    "type": "number"
                  },
                  "chronic_renal_failure": {
                    "description": "Chronic renal failure (Table 4, \u22126): kidney damage or GFR <60 mL/min/1.73 m\u00b2 for \u22653 months. Distinct from acute_renal_failure. true or false. Caller-assigned.",
                    "type": "boolean"
                  },
                  "cns_dysfunction": {
                    "description": "Acute pre-ECMO CNS dysfunction (Table 4, \u22123): neurotrauma, stroke, encephalopathy, cerebral embolism, seizure or epileptic syndromes. May stack. true or false. Caller-assigned; magent does not examine the patient.",
                    "type": "boolean"
                  },
                  "congenital_heart_disease": {
                    "description": "Congenital heart disease (Table 4, \u22123). May stack with other diagnosis flags. true or false. Caller-assigned.",
                    "type": "boolean"
                  },
                  "diastolic_bp_mm_hg": {
                    "description": "Diastolic blood pressure in mm Hg before ECMO (1-200). Worst value within 6 h of cannulation. Table 4: \u226540 \u2192 +3, otherwise 0. magent does not measure blood pressure.",
                    "type": "number"
                  },
                  "intubation_hours": {
                    "description": "Hours of intubation before ECMO (0-720). Table 4: \u226410 \u2192 0, 11\u201329 \u2192 \u22122, \u226530 \u2192 \u22124. Caller-supplied; magent does not read a ventilator log.",
                    "type": "number"
                  },
                  "liver_failure": {
                    "description": "Acute pre-ECMO liver failure (Table 4, \u22123). Paper footnote: bilirubin \u226533 \u00b5mol/L or ALT or AST >70 U/L. Acute organ failures may stack. true or false. Caller-assigned; magent does not measure labs.",
                    "type": "boolean"
                  },
                  "myocarditis": {
                    "description": "Acute myocarditis diagnosis (Table 4, +3). Diagnoses are not mutually exclusive (select one or more). true or false. Caller-assigned.",
                    "type": "boolean"
                  },
                  "pip_cmh2o": {
                    "description": "Peak inspiratory pressure in cmH2O (5-80). Table 4: \u226420 \u2192 +3, otherwise 0. Worst value as assigned by the caller. magent does not read airway pressure.",
                    "type": "number"
                  },
                  "post_heart_or_lung_transplant": {
                    "description": "Post heart or lung transplantation (Table 4, +3). May stack with other diagnosis flags. true or false. Caller-assigned.",
                    "type": "boolean"
                  },
                  "pre_ecmo_cardiac_arrest": {
                    "description": "Cardiac arrest before ECMO (Table 4, \u22122). Derivation excluded eCPR during cannulation. true or false. Caller-assigned.",
                    "type": "boolean"
                  },
                  "pulse_pressure_mm_hg": {
                    "description": "Pulse pressure in mm Hg before ECMO (0-200). Worst value within 6 h. Table 4: \u226420 \u2192 \u22122, otherwise 0. Caller-supplied; magent does not subtract systolic minus diastolic.",
                    "type": "number"
                  },
                  "refractory_vt_vf": {
                    "description": "Refractory ventricular tachycardia or fibrillation (Table 4, +2). May stack with other diagnosis flags. true or false. Caller-assigned.",
                    "type": "boolean"
                  },
                  "weight_kg": {
                    "description": "Weight in kg (20-400). Table 4 / Table 3 bands: \u226465 \u2192 1, 66\u201389 \u2192 2, \u226590 \u2192 0. 65 kg scores 1 (\u226465 before the 65\u201389 typeset overlap). Caller-supplied; magent does not weigh the patient.",
                    "type": "number"
                  }
                },
                "required": [
                  "age",
                  "weight_kg",
                  "myocarditis",
                  "refractory_vt_vf",
                  "post_heart_or_lung_transplant",
                  "congenital_heart_disease",
                  "liver_failure",
                  "cns_dysfunction",
                  "acute_renal_failure",
                  "chronic_renal_failure",
                  "intubation_hours",
                  "pip_cmh2o",
                  "pre_ecmo_cardiac_arrest",
                  "diastolic_bp_mm_hg",
                  "pulse_pressure_mm_hg",
                  "bicarbonate_mmol_l"
                ],
                "type": "object"
              },
              "maxItems": 25,
              "minItems": 1,
              "type": "array"

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