Emergency · LIVE
RESECT-90 lung-resection mortality
RESECT-90
Compute the Taylor 2021 RESECT-90 logistic estimated 90-day mortality after lung resection from the twelve published preoperative variables in Table 3.
Markdown: /docs/resect-90.md · Canonical: https://magentlab.com/docs/resect-90
Not a medical device. Not a diagnosis, dose, or listing recommendation.
What it computes
Compute the Taylor 2021 RESECT-90 logistic estimated 90-day mortality after lung resection from the twelve published preoperative variables in Table 3.
When to use
When an agent needs the published RESECT-90 90-day mortality percent and must not invent a mortality band, assign ECOG, read spirometry, substitute race for sex, or issue an operative go/no-go.
When not to use
- Not a medical device. Not a diagnosis and not an operative go/no-go.
- Taylor 2021 Table 3 multivariable logistic RESECT-90 only. This is not EuroSCORE II and not Gupta PRF.
- Taylor 2021 does not publish a low or high mortality cutoff; magent does not invent one.
- Sex is a published coefficient. This model does not use race.
- ecog, anemia, arrhythmia, laterality, surgical_approach, diagnosis, and resected_segments are caller-assigned. magent does not assign ECOG, read spirometry or DLCO, assay creatinine, or classify an incision.
- Creatinine is umol/L as published. magent does not convert from mg/dL.
Formula
L = -6.036 + 0.041*age + 0.493*male + 0.183*ecog - 0.029*dlco_percent - 0.056*bmi + 0.005*creatinine_umol_l + 0.242*anemia + 0.608*arrhythmia + 0.379*right + 0.179*resected_segments + 0.634*thoracotomy + 0.769*malignant (Taylor 2021 Table 3 / PMC8632783); estimated_mortality_percent = 100 / (1 + exp(-L)) from the unrounded logit, 2 decimals
Citation
- Authors
- Taylor M, Martin GP, Abah U, Sperrin M, Smith MO, Bhullar D, Shackcloth M, Woolley S, West D, Shah R, Grant SW; North West Thoracic Surgery Collaborative (NWTSC)
- Source
- Interact Cardiovasc Thorac Surg. 2021;33(6):921-927
Worked example
Age 65 male ECOG 0, Table 1-typical continuous values, binary references
Given:
age=65anemia=falsearrhythmia=falsebmi=27creatinine_umol_l=74diagnosis=benigndlco_percent=73ecog=0laterality=leftresected_segments=3sex=malesurgical_approach=vats
- L = -6.036 + 65×0.041 + 0.493 (male) + 0×0.183 − 73×0.029 − 27×0.056 + 74×0.005 + 0 + 0 + 0 + 3×0.179 + 0 + 0
- L = -6.036 + 2.665 + 0.493 − 2.117 − 1.512 + 0.370 + 0.537 = -5.600
- estimated_mortality_percent = 100 / (1 + exp(5.600)) from the unrounded logit
Same row, female (sex path; female is the Table 3 reference)
Given:
age=65anemia=falsearrhythmia=falsebmi=27creatinine_umol_l=74diagnosis=benigndlco_percent=73ecog=0laterality=leftresected_segments=3sex=femalesurgical_approach=vats
- male term 0 instead of +0.493
- estimated_mortality_percent from the unrounded logit
Same row, ECOG 2 (performance-status path)
Given:
age=65anemia=falsearrhythmia=falsebmi=27creatinine_umol_l=74diagnosis=benigndlco_percent=73ecog=2laterality=leftresected_segments=3sex=malesurgical_approach=vats
- ECOG 2 adds 2×0.183 = 0.366
- estimated_mortality_percent from the unrounded logit
Same row, thoracotomy (surgical-approach path)
Given:
age=65anemia=falsearrhythmia=falsebmi=27creatinine_umol_l=74diagnosis=benigndlco_percent=73ecog=0laterality=leftresected_segments=3sex=malesurgical_approach=thoracotomy
- thoracotomy adds 0.634 (vats is the Table 3 reference)
- estimated_mortality_percent from the unrounded logit
Same row, age 80 (age path; no published cutoff)
Given:
age=80anemia=falsearrhythmia=falsebmi=27creatinine_umol_l=74diagnosis=benigndlco_percent=73ecog=0laterality=leftresected_segments=3sex=malesurgical_approach=vats
- age 80 vs 65 adds 15×0.041 = 0.615
- estimated_mortality_percent from the unrounded logit
Also searched as
- RESECT-90
- 90-day mortality after lung resection
- Taylor 2021 lung resection
- lung resection mortality score
- DLCO lung resection mortality
- ECOG lung resection
- thoracotomy 90-day mortality
- resected bronchopulmonary segments
Try
Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.
Full URL: https://api.magentlab.com/api/calc/resect_90?age=65&sex=male&ecog=0&dlco_percent=73&bmi=27&creatinine_umol_l=74&anemia=false&arrhythmia=false&laterality=left&surgical_approach=vats&diagnosis=benign&resected_segments=3
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/resect_90?age=65&sex=male&ecog=0&dlco_percent=73&bmi=27&creatinine_umol_l=74&anemia=false&arrhythmia=false&laterality=left&surgical_approach=vats&diagnosis=benign&resected_segments=3"
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
age |
integer | required | Age in years (18-120). Taylor 2021 Table 3 coefficient 0.041 per year. magent does not read a chart. |
sex |
string | required · male, female | Sex as assigned by the caller. female is the reference (0). male adds 0.493 (Taylor 2021 Table 3). This is a published sex coefficient, not race. |
ecog |
integer | required | ECOG / WHO performance status 0-4 as assigned by the caller (Taylor 2021 Table 3 coefficient 0.183 per point). magent does not assign ECOG. |
dlco_percent |
number | required | Percent predicted DLCO (10-200). Taylor 2021 Table 3 subtracts 0.029 per percent. magent does not read spirometry or a gas-transfer tracing. |
bmi |
number | required | Body-mass index in kg/m2 (10-80). Taylor 2021 Table 3 subtracts 0.056 per kg/m2. magent does not weigh the patient. |
creatinine_umol_l |
number | required | Serum creatinine in µmol/L as published (20-2000). Taylor 2021 Table 3 coefficient 0.005 per µmol/L. Not mg/dL. |
anemia |
boolean | required | Taylor 2021 WHO anaemia as assigned by the caller: haemoglobin <120 g/L for women or <130 g/L for men (+0.242). true or false. magent does not read a haemoglobin. |
arrhythmia |
boolean | required | Preoperative arrhythmia as assigned by the caller (Taylor 2021 Table 3 +0.608). true or false. magent does not read an ECG. |
laterality |
string | required · left, right | Resection laterality as assigned by the caller. left is the reference (0). right adds 0.379 (Taylor 2021 Table 3). magent does not read an operative note. |
surgical_approach |
string | required · vats, thoracotomy | Approach as assigned by the caller. vats is the non-thoracotomy reference (0). thoracotomy adds 0.634 (Taylor 2021 Table 3). magent does not classify the incision. |
diagnosis |
string | required · benign, malignant | Diagnosis as assigned by the caller. benign is the reference (0). malignant (confirmed or suspected) adds 0.769 (Taylor 2021 Table 3). |
resected_segments |
integer | required | Number of resected bronchopulmonary segments (0-19). Taylor 2021 Table 3 coefficient 0.179 per segment. magent does not map a procedure to segments. |
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.
- 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": [
{
"age": "65",
"anemia": "false",
"arrhythmia": "false",
"bmi": "27",
"creatinine_umol_l": "74",
"diagnosis": "benign",
"dlco_percent": "73",
"ecog": "0",
"laterality": "left",
"resected_segments": "3",
"sex": "male",
"surgical_approach": "vats"
},
{
"age": "65",
"anemia": "false",
"arrhythmia": "false",
"bmi": "27",
"creatinine_umol_l": "74",
"diagnosis": "benign",
"dlco_percent": "73",
"ecog": "0",
"laterality": "left",
"resected_segments": "3",
"sex": "male",
"surgical_approach": "vats"
}
]
}
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/resect_90",
"items": [
{
"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": "Taylor M, Martin GP, Abah U, Sperrin M, Smith MO, Bhullar D, Shackcloth M, Woolley S, West D, Shah R, Grant SW; North West Thoracic Surgery Collaborative (NWTSC)",
"doi": "10.1093/icvts/ivab200",
"id": "taylor-2021",
"pmid": "34293121",
"source": "Interact Cardiovasc Thorac Surg. 2021;33(6):921-927",
"title": "Development and internal validation of a clinical prediction model for 90-day mortality after lung resection: the RESECT-90 score"
},
"formula": "resect_90",
"formula_expression": "L = -6.036 + 0.041*age + 0.493*male + 0.183*ecog - 0.029*dlco_percent - 0.056*bmi + 0.005*creatinine_umol_l + 0.242*anemia + 0.608*arrhythmia + 0.379*right + 0.179*resected_segments + 0.634*thoracotomy + 0.769*malignant (Taylor 2021 Table 3 / PMC8632783); estimated_mortality_percent = 100 / (1 + exp(-L)) from the unrounded logit, 2 decimals",
"age_years": 65,
"sex": "male",
"logit": -5.6,
"anemia": false,
"creatinine_umol_l": 74.0,
"bmi": 27.0,
"diagnosis": "benign",
"ecog": 0,
"estimated_mortality_percent": 0.37,
"arrhythmia": false,
"dlco_percent": 73.0,
"laterality": "left",
"resected_segments": 3,
"surgical_approach": "vats"
},
{
"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": "Taylor M, Martin GP, Abah U, Sperrin M, Smith MO, Bhullar D, Shackcloth M, Woolley S, West D, Shah R, Grant SW; North West Thoracic Surgery Collaborative (NWTSC)",
"doi": "10.1093/icvts/ivab200",
"id": "taylor-2021",
"pmid": "34293121",
"source": "Interact Cardiovasc Thorac Surg. 2021;33(6):921-927",
"title": "Development and internal validation of a clinical prediction model for 90-day mortality after lung resection: the RESECT-90 score"
},
"formula": "resect_90",
"formula_expression": "L = -6.036 + 0.041*age + 0.493*male + 0.183*ecog - 0.029*dlco_percent - 0.056*bmi + 0.005*creatinine_umol_l + 0.242*anemia + 0.608*arrhythmia + 0.379*right + 0.179*resected_segments + 0.634*thoracotomy + 0.769*malignant (Taylor 2021 Table 3 / PMC8632783); estimated_mortality_percent = 100 / (1 + exp(-L)) from the unrounded logit, 2 decimals",
"age_years": 65,
"sex": "male",
"logit": -5.6,
"anemia": false,
"creatinine_umol_l": 74.0,
"bmi": 27.0,
"diagnosis": "benign",
"ecog": 0,
"estimated_mortality_percent": 0.37,
"arrhythmia": false,
"dlco_percent": 73.0,
"laterality": "left",
"resected_segments": 3,
"surgical_approach": "vats"
}
]
}
Response
| Field | Type | Description |
|---|---|---|
formula |
string | resect_90 |
formula_expression |
string | Taylor 2021 Table 3 logistic expression |
age_years |
integer | Age in years |
sex |
string | male or female |
ecog |
integer | Caller-assigned ECOG 0-4 |
dlco_percent |
number | Percent predicted DLCO |
bmi |
number | BMI in kg/m2 |
creatinine_umol_l |
number | Creatinine in µmol/L as published |
anemia |
boolean | true if WHO anaemia is present |
arrhythmia |
boolean | true if preoperative arrhythmia |
laterality |
string | left or right |
surgical_approach |
string | vats or thoracotomy |
diagnosis |
string | benign or malignant |
resected_segments |
integer | Number of resected bronchopulmonary segments |
logit |
number | Taylor 2021 Table 3 linear predictor L, 4 decimal places |
estimated_mortality_percent |
number | 100 / (1 + exp(-L)) from the unrounded logit, 2 decimal places. Estimated 90-day mortality percent, not an operative go/no-go. |
citation |
object | Taylor et al. ICVTS 2021 citation |
disclaimer |
string | Not-a-device notice |
Example JSON
Machine form of the same example. Frozen fixture. Not a live lookup.
{
"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": "Taylor M, Martin GP, Abah U, Sperrin M, Smith MO, Bhullar D, Shackcloth M, Woolley S, West D, Shah R, Grant SW; North West Thoracic Surgery Collaborative (NWTSC)",
"doi": "10.1093/icvts/ivab200",
"id": "taylor-2021",
"pmid": "34293121",
"source": "Interact Cardiovasc Thorac Surg. 2021;33(6):921-927",
"title": "Development and internal validation of a clinical prediction model for 90-day mortality after lung resection: the RESECT-90 score"
},
"formula": "resect_90",
"formula_expression": "L = -6.036 + 0.041*age + 0.493*male + 0.183*ecog - 0.029*dlco_percent - 0.056*bmi + 0.005*creatinine_umol_l + 0.242*anemia + 0.608*arrhythmia + 0.379*right + 0.179*resected_segments + 0.634*thoracotomy + 0.769*malignant (Taylor 2021 Table 3 / PMC8632783); estimated_mortality_percent = 100 / (1 + exp(-L)) from the unrounded logit, 2 decimals",
"age_years": 65,
"sex": "male",
"logit": -5.6,
"anemia": false,
"creatinine_umol_l": 74.0,
"bmi": 27.0,
"diagnosis": "benign",
"ecog": 0,
"estimated_mortality_percent": 0.37,
"arrhythmia": false,
"dlco_percent": 73.0,
"laterality": "left",
"resected_segments": 3,
"surgical_approach": "vats"
}
Client errors (HTTP 400)
Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.
| HTTP | Code | When |
|---|---|---|
| 400 | invalid_resect_90 |
RESECT-90 needs Taylor 2021 lung-resection predictors in published ranges. Returned before settlement; you are not charged. |
| 400 | invalid_items |
POST body must be a JSON object with only an items array Returned before settlement; you are not charged. |
| 400 | invalid_item_count |
items must be an array of 1 to 25 objects Returned before settlement; you are not charged. |
| 400 | invalid_item |
each items entry must be a JSON object Returned before settlement; you are not charged. |
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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.