# SEDAN Score Calculator for sICH After Stroke Thrombolysis

> SEDAN Score Calculator for sICH After Stroke Thrombolysis is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).

Computes the SEDAN score (Strbian 2012) to estimate risk of symptomatic intracranial hemorrhage (sICH) after IV tPA thrombolysis for ischemic stroke

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/sedan
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sedan-score-calculator-for-sich-after-stroke-thrombolysis-bfff4ae9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VqsRSEtrMZq7fSv7XyLaS

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sedan-score-calculator-for-sich-after-stroke-thrombolysis-bfff4ae9
```

Example prompt: Calculate the SEDAN score for a 78-year-old stroke patient with an admission NIHSS of 14, glucose of 10.2 mmol/L, early infarct signs present on CT, and no hyperdense cerebral artery sign — I need the sICH risk estimate before we proceed with tPA.

## When to prefer this

Use this endpoint when you need a fast, reproducible SEDAN score calculation from structured clinical inputs (age, NIHSS, glucose, CT findings) and want to avoid manual arithmetic errors. Prefer this over generic medical calculators when you specifically need the Strbian 2012 sICH-after-tPA risk score with the published absolute risk percentages. Not intended to replace clinical judgment or serve as a standalone tPA withhold decision tool.

## Known failure modes

- Missing required parameters (age, nihss, early_infarct_signs, hyperdense_artery) returns a validation error
- Providing both glucose_mg_dl and glucose_mmol_l simultaneously is rejected
- Age or NIHSS outside expected integer range may return an error or unexpected result
- Glucose outside the accepted range (2.8–55.5 mmol/L or 50–1000 mg/dL) may be rejected
- Score 6 returns no published sICH percentage as none exists in the Strbian 2012 paper

## How this service works

SEDAN (Strbian 2012 Ann Neurol) for sICH after stroke thrombolysis. Glucose 8.1-12.0 mmol/L (1) or >12.0 (2); early infarct signs (1); hyperdense cerebral artery (1); age >75 (1); admission NIHSS ≥10 (1); max 6. Derivation absolute sICH 1.4%, 2.9%, 8.5%, 12.2%, 21.7%, 33.3% for scores 0-5; no published percent for 6. Not a tPA withhold decision. magent does not assign NIHSS or read CT.

## Output

Returns the total SEDAN score (integer 0–6) and the corresponding published absolute sICH risk percentage from the Strbian 2012 derivation cohort (1.4% for 0, 2.9% for 1, 8.5% for 2, 12.2% for 3, 21.7% for 4, 33.3% for 5; no published percent for score 6). The score is advisory only and does not constitute a tPA withhold decision.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "required": [
      "age",
      "nihss",
      "early_infarct_signs",
      "hyperdense_artery"
     ],
     "properties": {
      "age": {
       "type": "integer",
       "description": "Age in years (18-120). >75 scores 1; 75 does not (Strbian 2012). magent does not date the patient."
      },
      "nihss": {
       "type": "integer",
       "description": "Caller-assigned NIH Stroke Scale total (integer 0-42). ≥10 scores 1; 9 does not. magent does not compute NIHSS or examine the patient."
      },
      "glucose_mg_dl": {
       "type": "number",
       "description": "Baseline glucose in mg/dL (50-1000). Converted as mmol/L = mg/dL / 18. Provide this or glucose_mmol_l, not both."
      },
      "glucose_mmol_l": {
       "type": "number",
       "description": "Baseline glucose in mmol/L (2.8-55.5). Provide this or glucose_mg_dl, not both. 8.1-12.0 inclusive scores 1; >12.0 scores 2; else 0 (Strbian 2012)."
      },
      "hyperdense_artery": {
       "type": "boolean",
       "description": "(Hyper)dense cerebral artery sign on admission CT as assigned by the caller (Strbian 2012). true scores 1; false scores 0. magent does not read the CT."
      },
      "early_infarct_signs": {
       "type": "boolean",
       "description": "Early infarct signs on admission CT as assigned by the caller (Strbian 2012). true scores 1; false scores 0. magent does not read the CT."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sedan-score-calculator-for-sich-after-stroke-thrombolysis-bfff4ae9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.magentlab.com](https://www.zero.xyz/host/api.magentlab.com/llms.txt)