Infection / VTE · LIVE

RISK-E score (Olmos 2017)

RISK-E

Compute the Olmos 2017 RISK-E (Risk-Endocarditis) score from age and seven caller-assigned flags for active left-sided infective endocarditis undergoing cardiac surgery, and return the integer score and max_score 68.

LIVE $0.005 USDC GET /api/calc/riske

Markdown: /docs/riske.md · Canonical: https://magentlab.com/docs/riske

Not a medical device. Not a diagnosis, dose, or listing recommendation.

What it computes

Compute the Olmos 2017 RISK-E (Risk-Endocarditis) score from age and seven caller-assigned flags for active left-sided infective endocarditis undergoing cardiac surgery, and return the integer score and max_score 68.

When to use

When an agent already has Olmos 2017 inputs (age and caller-assigned prosthetic infection, periannular complications, Staphylococcus aureus or fungi, acute renal failure, septic shock, cardiogenic shock, and thrombocytopenia) and needs the published RISK-E point total, not a mortality percent, diagnosis, or surgery decision.

When not to use

• Not a medical device. Not a diagnosis of infective endocarditis.
• magent does not examine the valve, read echocardiography, or decide surgery. Flags are caller-assigned.
• Returns score and max_score 68 only. The paper estimated predicted mortality over score combinations; magent does not return a mortality percent or risk band.
• Not Park 2016 ICE IE 6-month mortality (ie-mortality). Not Durack 1994 Duke diagnostic criteria.
• Age 18-120 is the magent adult clamp via Params.age/1, not a published Olmos 2017 age range.

Formula

RISK-E = age (<=51: 0, 52-63: 9, 64-72: 13, >=73: 14) + prosthetic_infection 6 + periannular_complications 5 + staphylococcus_aureus_or_fungi 9 + acute_renal_failure 5 + septic_shock 7 + cardiogenic_shock 15 + thrombocytopenia 7; max 68. Score and max_score only; not a mortality percent. Olmos 2017 Table 2 and Table 3. Not Park 2016. Not Duke

Citation

Title

Risk score for cardiac surgery in active left-sided infective endocarditis

Authors

Olmos C, Vilacosta I, Fernández C, et al.

Source

Heart. 2017;103(18):1435-1442

DOI

10.1136/heartjnl-2016-311093

Worked example

Also searched as

• RISK-E score
• Risk-Endocarditis score
• Olmos endocarditis surgery score
• left-sided IE surgical risk
• cardiac surgery infective endocarditis score
• Olmos 2017 RISK-E
• IE perioperative mortality score

Try

Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.

/api/calc/riske?age=50&prosthetic_infection=false&periannular_complications=false&staphylococcus_aureus_or_fungi=false&acute_renal_failure=false&septic_shock=false&cardiogenic_shock=false&thrombocytopenia=false

Full URL: https://api.magentlab.com/api/calc/riske?age=50&prosthetic_infection=false&periannular_complications=false&staphylococcus_aureus_or_fungi=false&acute_renal_failure=false&septic_shock=false&cardiogenic_shock=false&thrombocytopenia=false

Call

Expect HTTP 402 until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge.

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/riske?age=50&prosthetic_infection=false&periannular_complications=false&staphylococcus_aureus_or_fungi=false&acute_renal_failure=false&septic_shock=false&cardiogenic_shock=false&thrombocytopenia=false"

Parameters

Bulk (POST)

POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement.

POST /api/calc/riske Max 25 unit_amount + extra_item_amount * (n - 1) extra $0.002 PREVIEW

• 1 to 25 items. Each item uses the same keys as the GET query parameters.
• POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows.
• The first invalid item fails the whole request (index in the 400 JSON). You are not charged.
• HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row.
• Catalog misses (empty matches, found=false) stay paid 200s inside that slot.
• x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items.

Example request (fixture)

{
  "items": [
    {
      "acute_renal_failure": "false",
      "age": "50",
      "cardiogenic_shock": "false",
      "periannular_complications": "false",
      "prosthetic_infection": "false",
      "septic_shock": "false",
      "staphylococcus_aureus_or_fungi": "false",
      "thrombocytopenia": "false"
    },
    {
      "acute_renal_failure": "false",
      "age": "50",
      "cardiogenic_shock": "false",
      "periannular_complications": "false",
      "prosthetic_infection": "false",
      "septic_shock": "false",
      "staphylococcus_aureus_or_fungi": "false",
      "thrombocytopenia": "false"
    }
  ]
}

Open bulk paywall →

Opens a two-item fixture on the API host. Unpaid browsers get the same MetaMask paywall as GET; Pay retries POST with those items.

Example 200 (fixture)

{
  "count": 2,
  "path": "/api/calc/riske",
  "items": [
    {
      "components": [
        {
          "value": 50,
          "factor": "age",
          "points": 0,
          "present": true
        },
        {
          "factor": "prosthetic_infection",
          "points": 0,
          "present": false
        },
        {
          "factor": "periannular_complications",
          "points": 0,
          "present": false
        },
        {
          "factor": "staphylococcus_aureus_or_fungi",
          "points": 0,
          "present": false
        },
        {
          "factor": "acute_renal_failure",
          "points": 0,
          "present": false
        },
        {
          "factor": "septic_shock",
          "points": 0,
          "present": false
        },
        {
          "factor": "cardiogenic_shock",
          "points": 0,
          "present": false
        },
        {
          "factor": "thrombocytopenia",
          "points": 0,
          "present": false
        }
      ],
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Olmos C, Vilacosta I, Fernández C, et al.",
        "doi": "10.1136/heartjnl-2016-311093",
        "id": "olmos-2017",
        "pmid": "28432158",
        "source": "Heart. 2017;103(18):1435-1442",
        "title": "Risk score for cardiac surgery in active left-sided infective endocarditis"
      },
      "formula": "riske",
      "formula_expression": "RISK-E = age (<=51: 0, 52-63: 9, 64-72: 13, >=73: 14) + prosthetic_infection 6 + periannular_complications 5 + staphylococcus_aureus_or_fungi 9 + acute_renal_failure 5 + septic_shock 7 + cardiogenic_shock 15 + thrombocytopenia 7; max 68. Score and max_score only; not a mortality percent. Olmos 2017 Table 2 and Table 3. Not Park 2016. Not Duke",
      "max_score": 68,
      "score": 0,
      "age_years": 50
    },
    {
      "components": [
        {
          "value": 50,
          "factor": "age",
          "points": 0,
          "present": true
        },
        {
          "factor": "prosthetic_infection",
          "points": 0,
          "present": false
        },
        {
          "factor": "periannular_complications",
          "points": 0,
          "present": false
        },
        {
          "factor": "staphylococcus_aureus_or_fungi",
          "points": 0,
          "present": false
        },
        {
          "factor": "acute_renal_failure",
          "points": 0,
          "present": false
        },
        {
          "factor": "septic_shock",
          "points": 0,
          "present": false
        },
        {
          "factor": "cardiogenic_shock",
          "points": 0,
          "present": false
        },
        {
          "factor": "thrombocytopenia",
          "points": 0,
          "present": false
        }
      ],
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Olmos C, Vilacosta I, Fernández C, et al.",
        "doi": "10.1136/heartjnl-2016-311093",
        "id": "olmos-2017",
        "pmid": "28432158",
        "source": "Heart. 2017;103(18):1435-1442",
        "title": "Risk score for cardiac surgery in active left-sided infective endocarditis"
      },
      "formula": "riske",
      "formula_expression": "RISK-E = age (<=51: 0, 52-63: 9, 64-72: 13, >=73: 14) + prosthetic_infection 6 + periannular_complications 5 + staphylococcus_aureus_or_fungi 9 + acute_renal_failure 5 + septic_shock 7 + cardiogenic_shock 15 + thrombocytopenia 7; max 68. Score and max_score only; not a mortality percent. Olmos 2017 Table 2 and Table 3. Not Park 2016. Not Duke",
      "max_score": 68,
      "score": 0,
      "age_years": 50
    }
  ]
}

Response

Example JSON

Machine form of the same example. Frozen fixture. Not a live lookup.

{
  "components": [
    {
      "value": 50,
      "factor": "age",
      "points": 0,
      "present": true
    },
    {
      "factor": "prosthetic_infection",
      "points": 0,
      "present": false
    },
    {
      "factor": "periannular_complications",
      "points": 0,
      "present": false
    },
    {
      "factor": "staphylococcus_aureus_or_fungi",
      "points": 0,
      "present": false
    },
    {
      "factor": "acute_renal_failure",
      "points": 0,
      "present": false
    },
    {
      "factor": "septic_shock",
      "points": 0,
      "present": false
    },
    {
      "factor": "cardiogenic_shock",
      "points": 0,
      "present": false
    },
    {
      "factor": "thrombocytopenia",
      "points": 0,
      "present": false
    }
  ],
  "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
  "citation": {
    "authors": "Olmos C, Vilacosta I, Fernández C, et al.",
    "doi": "10.1136/heartjnl-2016-311093",
    "id": "olmos-2017",
    "pmid": "28432158",
    "source": "Heart. 2017;103(18):1435-1442",
    "title": "Risk score for cardiac surgery in active left-sided infective endocarditis"
  },
  "formula": "riske",
  "formula_expression": "RISK-E = age (<=51: 0, 52-63: 9, 64-72: 13, >=73: 14) + prosthetic_infection 6 + periannular_complications 5 + staphylococcus_aureus_or_fungi 9 + acute_renal_failure 5 + septic_shock 7 + cardiogenic_shock 15 + thrombocytopenia 7; max 68. Score and max_score only; not a mortality percent. Olmos 2017 Table 2 and Table 3. Not Park 2016. Not Duke",
  "max_score": 68,
  "score": 0,
  "age_years": 50
}

Client errors (HTTP 400)

Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.

Related tools

• Duke — Apply the Durack 1994 original Duke criteria for infective endocarditis and return definite, possible, or rejected from caller-assigned pathologic, major, minor, and rejected flags.
• IE mortality — Compute the Park 2016 ICE simplified risk score for 6-month mortality in infective endocarditis from age and caller-assigned Table 5 flags, and return the score, quadratic 6-month mortality percent, and whether score >= 8.
• EuroSCORE II — Compute the Nashef 2012 Table 6 logistic estimated in-hospital mortality after adult cardiac surgery from the published multivariable coefficients.

Payment

Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s. Unpaid valid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote: retry the same PAYMENT-SIGNATURE. Full handshake and shared payment errors: Payments. Stdio MCP: /docs/mcp.

Guarantees

• HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON.
• exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE.
• HTTP 402 is unpaid only. Do not sign a second authorization because of a 503.
• Execution is timeout-bounded and concurrency-capped.
• Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.