gout
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Age > 18 years Mono or oligo arthritis (2-3 swollen joints) Indication for diagnostic aspiration of an inflamed joint in which gout is one of the possibilities
Exclusion criteria
Exclusion criteria: Polyarthritis (>=4 swollen joint); Chrystal proven gout in history Patient is on uric acid lowering therapy (Allopurinol, Benzbromaron, Febuxostat) Hip arthritis Metal or prosthesis of the inflamed joint Highly suspicion of infectious arthritis Pregnancy Contra indication of joint aspiration (skin infection, hemophilia) No informed consent
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The sensitivity and specificity (95% CI) of DECT scanning for the detection of MSU deposition will be calculated. The area under receiver operating characteristic curve (AUC-ROC) will be employed to evaluate the screening method*s performance. | — |
Secondary
| Measure | Time frame |
|---|---|
| Identify the clinical features and laboratory variables that affect the primary outcome measure of positive DECT scan for lesions suggestive of uric acid deposition in patients with acute mono or oligo arthritis. Establish the additive value of ultrasound guided joint aspiration in patients in whom the first aspirate demonstrated no microscopic MSU and /or no synovial fluid Establish the additive value of ultrasound guided joint aspiration of DECT lesions suggestive of gout in patients in whom the earlier aspirate(s) demonstrated no microscopic MSU and /or no synovial fluid. Cost effectiveness analysis of different diagnostic strategies. Patient satisfaction: What does the patient experience as the most patient-friendly way of diagnosing gout: DECT scan, ultrasound-guided joint aspiration or blind aspiration? | — |
Countries
Netherlands