{"uid":"cap_PAtIGQ01LcO8bM0HvsRv_","slug":"vanwagner-2017-car-olt-1-year-cvd-complication-risk-score-54f98cf7","name":"VanWagner 2017 CAR-OLT 1-Year CVD Complication Risk Score","description":"VanWagner 2017 CAR-OLT integer points (Table 3) for 1-year CVD complication after first orthotopic liver transplant: age bands, sex, caller-assigned race (white 7, black 10, other 0), work, education, atrial fibrillation 25, ventilator 13, pulmonary hypertension 9, no HCC 6, hypertension 4, diabetes 4, heart failure 7. Table 4 predicted percent. Not a listing decision. magent does not assign race.","url":"https://api.magentlab.com/api/calc/car_olt","method":"GET","headers":{},"bodySchema":{"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","sex","race_group","working_for_income","education","atrial_fibrillation","ventilator_respiratory_failure","pulmonary_hypertension","hcc","hypertension","diabetes","heart_failure"],"properties":{"age":{"type":"integer","description":"Age in years (integer 18-120). VanWagner 2017 Table 3: <45 scores 0; 45-49 scores -6; 50-54 scores -4; 55-59 scores 2; 60-64 scores 5; ≥65 scores 8. Derivation was first OLT ages 18-75; ≥65 is the top Table 3 band."},"hcc":{"type":"boolean","description":"History of hepatocellular carcinoma (VanWagner 2017 Table 3). true scores 0 (referent); false scores 6. No HCC is the higher-risk term. magent does not diagnose HCC."},"sex":{"enum":["female","male"],"type":"string","description":"Caller-assigned sex (VanWagner 2017 Table 3). male scores 0 (referent); female scores 1. magent does not assign sex."},"diabetes":{"type":"boolean","description":"History of diabetes prior to transplant (VanWagner 2017 Table 3). true scores 4. magent does not assay glucose."},"education":{"enum":["high_school_or_unknown","college"],"type":"string","description":"Caller-assigned education (VanWagner 2017 Table 3). college scores 0 (College+ referent); high_school_or_unknown scores 5. magent does not assign education."},"race_group":{"enum":["white","black","other"],"type":"string","description":"Caller-assigned race as used in VanWagner 2017 Table 3. white scores 7; black scores 10; other scores 0 (referent). Hispanic and Asian map to other in this model. magent does not assign race."},"hypertension":{"type":"boolean","description":"History of systemic hypertension prior to transplant (VanWagner 2017 Table 3). true scores 4. magent does not measure blood pressure."},"heart_failure":{"type":"boolean","description":"History of heart failure prior to transplant (VanWagner 2017 Table 3). true scores 7. magent does not diagnose heart failure."},"working_for_income":{"type":"boolean","description":"Working for income at transplant (VanWagner 2017 Table 3). true scores 0 (referent); false scores 10. magent does not assign employment."},"atrial_fibrillation":{"type":"boolean","description":"History of atrial fibrillation prior to transplant (VanWagner 2017 Table 3). true scores 25. magent does not read an ECG."},"pulmonary_hypertension":{"type":"boolean","description":"History of pulmonary hypertension prior to transplant (VanWagner 2017 Table 3). true scores 9. magent does not perform right-heart catheterization."},"ventilator_respiratory_failure":{"type":"boolean","description":"Respiratory failure on a ventilator at transplant (VanWagner 2017 Table 3). true scores 13. magent does not observe ventilation."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_rBos6FMhUCJFmS1XjVW19","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates the VanWagner 2017 CAR-OLT integer point score and predicted percent risk of cardiovascular complications within 1 year after first orthotopic liver transplant","exampleAgentPrompt":"Using the VanWagner 2017 CAR-OLT model, calculate the 1-year cardiovascular complication risk score for a 58-year-old white female patient who has no history of HCC, has atrial fibrillation, is on a ventilator, has pulmonary hypertension, hypertension, and diabetes, is not working for income, and has only a high school education.","exampleUseCases":[{"title":"Pre-transplant CVD risk stratification","prompt":"I have a 62-year-old black male liver transplant candidate with no HCC, a history of hypertension and diabetes, no atrial fibrillation, no ventilator use, no pulmonary hypertension, no heart failure, college educated, and currently working for income — what does the VanWagner CAR-OLT model predict for his 1-year cardiovascular complication risk?"},{"title":"Comparing risk across two OLT patients","prompt":"Can you run the CAR-OLT cardiovascular risk score for two patients? First: a 47-year-old white female, HCC present, atrial fibrillation, no ventilator, no pulmonary hypertension, no hypertension, no diabetes, no heart failure, college education, working. Second: a 66-year-old other-race male, no HCC, no atrial fibrillation, on ventilator, pulmonary hypertension, hypertension, diabetes, heart failure, high school education, not working."},{"title":"Documenting post-transplant CVD risk in chart","prompt":"For a 55-year-old other-race female liver transplant recipient with no HCC, no atrial fibrillation, not on ventilator, no pulmonary hypertension, hypertension, no diabetes, no heart failure, high school education, not working for income — give me her VanWagner 2017 CAR-OLT point total and the corresponding predicted 1-year CVD complication percentage from Table 4."}],"resultDescription":"Returns the VanWagner 2017 CAR-OLT integer point total (summed from demographic and clinical variable point values per Table 3) and the corresponding predicted percent probability of a cardiovascular complication within 1 year of first orthotopic liver transplant (from Table 4). This is a prognostic estimate, not a listing decision tool.","failureModes":["Missing required query parameter returns an error (all 12 clinical/demographic fields are required)","Age outside 18-120 integer range returns a validation error","Invalid enum value for sex, race_group, or education returns an error","Non-boolean values for clinical flag fields return a parsing error","Network or payment failure (402 x402 payment required or unpaid)"],"whenToPreferThis":"Use this endpoint when you need a deterministic, published-literature-backed integer point score for 1-year cardiovascular complication risk after first orthotopic liver transplant, following the exact VanWagner 2017 methodology. Prefer this over generic CVD risk calculators (e.g. Framingham) when the patient context is specifically post-OLT. This endpoint is appropriate when all 12 required clinical variables are available and a reproducible, citable score is needed for clinical documentation or research.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:01:43.396Z","isFirstParty":false}