# EUROMACS Right-Sided Heart Failure Score Calculator

> EUROMACS Right-Sided Heart Failure Score Calculator 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 Soliman 2018 EUROMACS 9.5-point right-sided heart failure risk score for patients receiving continuous-flow LVAD implantation

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/euromacs_rhf
- 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/euromacs-right-sided-heart-failure-score-calculator-9a4b95bb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YKzN1sCmhdriq1_2Bbq53

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 euromacs-right-sided-heart-failure-score-calculator-9a4b95bb
```

Example prompt: Calculate the EUROMACS right-sided heart failure score for my LVAD candidate: their RA/PCWP ratio is greater than 0.54, hemoglobin is above 10, they're on a single IV inotrope, INTERMACS class is 2, and they have severe RV dysfunction on echo.

## When to prefer this

Use this endpoint when you need a fast, validated implementation of the Soliman 2018 EUROMACS 9.5-point right-sided heart failure score specifically — not the Michigan RV-failure score, not CRITT, and not any other LVAD RV risk tool. It is the right choice when the calling system has already determined the five clinical flags from catheterization, labs, and echo data and simply needs the scoring arithmetic and band classification applied correctly without rounding half-points.

## Known failure modes

- Missing required boolean query parameters returns a validation error
- All five flags must be explicitly supplied as true/false; absent flags cause request rejection
- Score reflects only the caller-assigned flags — miscategorized clinical inputs produce incorrect scores
- Half-point increments are preserved; callers expecting integer rounding will receive unexpected values

## How this service works

Soliman 2018 EUROMACS 9.5-point right-sided heart failure score after continuous-flow LVAD. Five caller-assigned flags: RA/PCWP >0.54 (2), hemoglobin ≤10 g/dL (1), multiple IV inotropes (2.5), INTERMACS class 1-3 (2), severe RV dysfunction (2). Max 9.5; half-points not integer-rounded. Bands: low 0-2, intermediate >2 to 4, high >4. Not a device indication. Not Michigan RV-failure score. Not CRITT. magent does not catheterize or echo.

## Output

Returns the numeric EUROMACS RHF total score (0–9.5, half-points preserved) and the associated risk band: low (0–2), intermediate (>2 to 4), or high (>4), based on the five caller-supplied boolean flags weighted per the Soliman 2018 publication.

## 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": [
      "rap_pcwp_gt_054",
      "hemoglobin_le_10",
      "multiple_iv_inotropes",
      "intermacs_1_to_3",
      "severe_rv_dysfunction"
     ],
     "properties": {
      "rap_pcwp_gt_054": {
       "type": "boolean",
       "description": "RA/PCWP ratio >0.54 as assigned by the caller (Soliman 2018). true scores 2. magent does not catheterize or compute the ratio."
      },
      "hemoglobin_le_10": {
       "type": "boolean",
       "description": "Hemoglobin ≤10 g/dL as assigned by the caller (Soliman 2018). true scores 1. magent does not measure hemoglobin."
      },
      "intermacs_1_to_3": {
       "type": "boolean",
       "description": "INTERMACS class 1, 2, or 3 as assigned by the caller (Soliman 2018). true scores 2. The primary paper uses classes 1-3, not 1-2 only. magent does not assign INTERMACS class."
      },
      "multiple_iv_inotropes": {
       "type": "boolean",
       "description": "Use of multiple intravenous inotropes as assigned by the caller (Soliman 2018). true scores 2.5. magent does not order inotropes."
      },
      "severe_rv_dysfunction": {
       "type": "boolean",
       "description": "Severe RV dysfunction on echocardiography as assigned by the caller (Soliman 2018). true scores 2. magent does not echo."
      }
     }
    }
   },
   "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/euromacs-right-sided-heart-failure-score-calculator-9a4b95bb/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)