Management of Gout

Diagnostic Confirmation and Treatment

The American College of Rheumatology recommends confirming the diagnosis of gout through synovial fluid crystal analysis and initiating comprehensive gout management, including acute treatment followed by urate-lowering therapy to achieve a target serum uric acid level below 6 mg/dL, in patients with joint fluid negative for infection but with hyperuricemia and joint symptoms 1

First-line therapy for acute gouty arthritis is NSAIDs at maximal dose or corticosteroids, depending on comorbidities, as recommended by the American College of Rheumatology 1

The American College of Rheumatology suggests investigating underlying causes of hyperuricemia using a systematic approach, including reviewing and eliminating non-essential medications that elevate serum urate, such as thiazide and loop diuretics, niacin, and calcineurin inhibitors 1, 2
The American College of Rheumatology recommends screening for uric acid overproduction, via 24-hour urine uric acid, in patients with gout onset before age 25 or history of urolithiasis 1, 2, 3

The American College of Rheumatology recommends implementing diet and lifestyle modifications immediately, including limiting purine-rich meats and seafood, high-fructose corn syrup sweetened beverages, and avoiding alcohol, especially beer, and encouraging low-fat or non-fat dairy products and vegetables 1, 2, 4

The American College of Rheumatology recommends initiating ULT after addressing the acute attack if the patient meets treatment criteria, with a target serum uric acid level of less than 6 mg/dL 1
The American College of Rheumatology suggests using allopurinol as a first-line ULT agent, starting at a low dose of 100 mg daily and increasing by 100 mg weekly until serum uric acid is less than 6 mg/dL 1

The American College of Rheumatology recommends considering rheumatology referral for patients with unclear etiology of hyperuricemia, refractory signs or symptoms of gout, difficulty reaching target serum urate level, or multiple or serious adverse events from pharmacologic ULT 1, 2, 3

The combination of knee pain, elevated uric acid, and inflammatory markers strongly suggests acute gouty arthritis, with a supersaturation threshold of 6.8 mg/dL 5, 6

The American Journal of Kidney Diseases recommends initiating corticosteroids rather than NSAIDs for acute gout treatment in patients with borderline hyperkalemia and potential chronic kidney disease 7
Low-dose colchicine is an alternative, but requires caution with elevated potassium and potential renal impairment 7
The American Journal of Kidney Diseases advises against using colchicine with CYP3A4 inhibitors due to the risk of life-threatening toxicity 7

The American Journal of Kidney Diseases recommends reviewing and discontinuing potassium-sparing diuretics, ACE inhibitors, ARBs, or NSAIDs that may be contributing to hyperkalemia 7
Calculating eGFR is necessary to assess kidney function, as hyperuricemia with hyperkalemia suggests underlying chronic kidney disease 7

The American College of Rheumatology recommends beginning allopurinol after the acute attack resolves, starting at 100 mg daily and titrating upward until serum uric acid is below 6 mg/dL 5, 6
The American Journal of Kidney Diseases advises adjusting allopurinol dose according to creatinine clearance once calculated 7

The American Heart Association recommends implementing lifestyle modifications, including weight reduction, to manage prediabetes and gout 5, 6
Avoiding thiazide diuretics for hypertension management is recommended, as they worsen both hyperuricemia and glucose control 5

The American Journal of Kidney Diseases recommends checking serum uric acid every 2-4 weeks during allopurinol dose titration until the target of <6 mg/dL is achieved 7
Monitoring potassium within 1 week after any medication changes is necessary 7