🦴 2015 ACR/EULAR Gout Classification
UseWhen to use: structured classification after ≥1 symptomatic peripheral joint/bursa episode.
StrataClassifies vs not — still not a standalone clinical diagnosis.
LimitsWhen not to use: without entry criterion, or to force ULT decisions a… · Pitfall: forgetting negative SF (−2) or very low urate (−4). · Septic arthritis must be excluded clinically when indicated.
Source中华医学会风湿病学分会痛风诊疗规范 on zh
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
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Methodology · worked example, guidelines & full notes
Entry gate + MSU sufficient pathway.
When to use
When to use: structured classification after ≥1 symptomatic peripheral joint/bursa episode.
How it works
MSU in symptomatic joint/tophus = sufficient. Else sum domains (pattern, characteristics, time-course, tophus, urate, SF−2, imaging urate, erosion); ≥8 classifies.
Key points
- Entry gate + MSU sufficient pathway.
- ≥8 classifies.
- Next: gout flare pathway; CN gout guideline on zh.
References
- [Guideline / primary source]中华医学会风湿病学分会痛风诊疗规范 on zh
- Neogi T, et al. Arthritis Rheumatol / Ann Rheum Dis 2015
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| ≥1 episode swelling/pain/tenderness in a peripheral joint or bursa | No |
|---|---|
| MSU crystals in symptomatic joint/bursa or tophus (sufficient) | No / not demonstrated |
| Joint/bursa pattern (highest ever) | Ankle or midfoot mono/oligo without 1st MTP (1) |
| Episode characteristics count (erythema / can't bear touch / can't use joint) | One (1) |
| Typical time-course episodes (≥2 of: max pain <24h, resolve ≤14d, complete intercritical resolution) | One typical episode (1) |
| Clinical tophus | No (0) |
| Serum urate (highest, ideally off ULT) | 6–<8 mg/dL (2) |
| Synovial fluid of symptomatic joint MSU-negative | Not done / not negative (0) |
| Imaging urate deposition (US double-contour or DECT) | Absent / not done (0) |
| Radiographic gout-related erosion (hands/feet) | Absent / not done (0) |
→ACR/EULAR GoutNot applicable
- Entry：Requires ≥1 peripheral joint/bursa symptomatic episode.
| ≥1 episode swelling/pain/tenderness in a peripheral joint or bursa | Yes (required) |
|---|---|
| MSU crystals in symptomatic joint/bursa or tophus (sufficient) | Yes — sufficient for classification |
| Joint/bursa pattern (highest ever) | 1st MTP mono/oligo (2) |
| Episode characteristics count (erythema / can't bear touch / can't use joint) | Three (3) |
| Typical time-course episodes (≥2 of: max pain <24h, resolve ≤14d, complete intercritical resolution) | Recurrent typical episodes (2) |
| Clinical tophus | Yes (4) |
| Serum urate (highest, ideally off ULT) | ≥10 mg/dL (4) |
| Synovial fluid of symptomatic joint MSU-negative | MSU-negative (−2) |
| Imaging urate deposition (US double-contour or DECT) | Present (4) |
| Radiographic gout-related erosion (hands/feet) | Present (4) |
→ACR/EULAR GoutClassifies (MSU sufficient)
- Pathway：Sufficient criterion met — score not required
Verification & sources · governance
FAQ
Frequently asked questions
- Does 2015 ACR/EULAR Gout Classification upload patient data? Where is it calculated?
- Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
- How is 2015 ACR/EULAR Gout Classification calculated in practice? Can you show a worked example?
- Inputs: ≥1 episode swelling/pain/tenderness in a peripheral joint or bursa No, MSU crystals in symptomatic joint/bursa or tophus (sufficient) No / not demonstrated, Joint/bursa pattern (highest ever) Ankle or midfoot mono/oligo without 1st MTP (1), Episode characteristics count (erythema / can't bear touch / can't use joint) One (1), Typical time-course episodes (≥2 of: max pain <24h, resolve ≤14d, complete intercritical resolution) One typical episode (1), Clinical tophus No (0), Serum urate (highest, ideally off ULT) 6–<8 mg/dL (2), Synovial fluid of symptomatic joint MSU-negative Not done / not negative (0)… → Result: ACR/EULAR Gout Not applicable（Entry: Requires ≥1 peripheral joint/bursa symptomatic episode.） Inputs: ≥1 episode swelling/pain/tenderness in a peripheral joint or bursa Yes (required), MSU crystals in symptomatic joint/bursa or tophus (sufficient) Yes — sufficient for classification, Joint/bursa pattern (highest ever) 1st MTP mono/oligo (2), Episode characteristics count (erythema / can't bear touch / can't use joint) Three (3), Typical time-course episodes (≥2 of: max pain <24h, resolve ≤14d, complete intercritical resolution) Recurrent typical episodes (2), Clinical tophus Yes (4), Serum urate (highest, ideally off ULT) ≥10 mg/dL (4), Synovial fluid of symptomatic joint MSU-negative MSU-negative (−2)… → Result: ACR/EULAR Gout Classifies (MSU sufficient)（Pathway: Sufficient criterion met — score not required）