Acute Monoarticular Gouty Arthritis: Diagnosis and Inpatient Management Guide
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🩺 Provisional Diagnosis:
Acute Monoarticular Gouty Arthritis
📋 Diagnosis Criteria (based on 2015 ACR/EULAR Gout Classification Criteria):
A. Entry criterion (must be met):
- At least one episode of swelling, pain, or tenderness in a peripheral joint or bursa
B. Clinical and Diagnostic Features (scored):
- Pattern of joint involvement: Monoarthritis, especially 1st MTP joint (“podagra”) [4 pts]
- Time to maximal pain < 24 hr [0.5 pts]
- Redness over joint [1 pt]
- Tophus present clinically or by imaging [4 pts]
- Serum uric acid > 6.0 mg/dL [2 pts]
- Polarized microscopy showing monosodium urate (MSU) crystals [definitive]
- Imaging evidence of MSU deposits (e.g., double contour sign on US) [4 pts]
Score ≥ 8: Classified as gout
🏥 Criteria for Admission:
Admit the patient for inpatient (IPD) management if one or more of the following are present:
| Reason | Explanation |
|---|---|
| Severe uncontrolled pain | Pain not relieved with outpatient oral meds |
| Polyarticular involvement or systemic symptoms | Fever, chills, leukocytosis mimicking septic arthritis |
| Suspected septic arthritis | Must exclude joint infection with arthrocentesis |
| Recurrent gout with renal insufficiency | Need for IV meds, fluid adjustment, or renal dose adjustment |
| Poor response or contraindication to PO meds | GI bleed history, NSAID allergy, unable to take PO meds |
| Gout flare with cardiac decompensation | E.g., CHF exacerbation due to volume overload with steroids |
| Unusual presentation or diagnostic uncertainty | Rule out crystal arthropathy, pseudogout, or infection |
🧠 Management Plan for Acute Gout Attack (IPD case)
Management Setting: Inpatient Department (IPD) – due to [choose one: uncontrolled pain, renal impairment, diagnostic uncertainty, etc.]
⚕️ 1. Definitive Treatment:
Use one anti-inflammatory regimen (monotherapy) or combination in severe or polyarticular attack.
- Colchicine: Colchicine 0.6 mg → 2 tabs stat (1.2 mg), then 1 tab (0.6 mg) in 1 hour ➤ Max: 1.8 mg/24 hrs; Avoid in severe renal impairment (CrCl < 30 mL/min)
- NSAIDs: Naproxen (250 mg) 1 tab po bid pc x 5 days ➤ Avoid in patients with CKD, GI ulcer, CHF
- Systemic Corticosteroids (if above contraindicated or combination needed): Dexamethasone 4 mg IV stat, then 4 mg IV q12h for 2–3 days ➤ Use tapering dose if course > 3–5 days
🤲 2. Supportive Treatment:
- Paracetamol (500 mg) 1 tab po q6h prn pain
- Omeprazole (20 mg) 1 tab po od ac (for GI protection)
- 0.9% NaCl 1000 mL IV drip at 80 mL/hr (if euvolemic and no CHF)
🧪 3. Investigations:
- Joint aspiration (arthrocentesis): Look for MSU crystals (diagnostic gold standard), exclude infection
- CBC, ESR, CRP: Rule out sepsis
- Renal function test: For drug dosing (esp. colchicine, NSAIDs)
- Serum uric acid: May be normal/low during acute flare, but still done
- X-ray: Joint erosion, tophi if chronic
- ECG, electrolytes: If fluid or steroid use planned
📉 4. Urate-Lowering Therapy (NOT during acute attack):
- Delay allopurinol or febuxostat initiation until after resolution of the acute flare
- Long-term management begins ≥2 weeks after complete symptom resolution
📚 Patient Education and Long-Term Plan
- Avoid high-purine foods (red meat, seafood, alcohol)
- Encourage hydration
- Check comorbid conditions: HTN, CKD, DM, metabolic syndrome
- Monitor uric acid target: <6 mg/dL (or <5 mg/dL in tophaceous gout)
Would you like to generate the case write-up using clinical format (CC, PI, PE, DDx), or convert this to OSCE table format for practice?
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