Spondyloarthritis & psoriatic arthritis
Prospective double-blind study on the value of musculoskeletal ultrasound by dermatologists as a screening instrument for psoriatic arthritis
Authors' conclusion
This study was able to demonstrate that PsA screening using MSUS by previously trained dermatologists can lead to more precise PsA detection and potentially decreased rheumatologist referral rates.
Study context
- Population
- Psoriasis patients with arthralgia screened by 12 trained dermatologists, one major hospital in Bonn (Germany) and six private practices; final diagnosis by rheumatologists19 (13.6%) diagnosed with PsA
- Participants
- 140 patients
- Comparison
- Dermatologists' PsA screening before vs after handheld musculoskeletal ultrasound (MSUS)
- Outcome
- Sensitivity and specificity of PsA screening before and after MSUS
Methodological detailsprospective, double-blind, multicentre
- Prospective
- Double-blind
- Multicentre
Performance
As reported in the abstract
PsA screening accuracy (reference: rheumatologist diagnosis)
| Test or model | Sensitivity | Specificity |
|---|---|---|
| Before MSUS | 88.2% | 54.4% |
| After MSUS | 70.6% | 90.4% |
Sensitivity
Before MSUS88.2%
After MSUS70.6%
Specificity
Before MSUS54.4%
After MSUS90.4%
Further findings
Change of PsA suspicion after MSUS
- MSUS changed PsA suspicion
- 46
- PsA no longer suspected (of the 46)
- 45
Original publication
Prospective double-blind study on the value of musculoskeletal ultrasound by dermatologists as a screening instrument for psoriatic arthritis. Rheumatology (Oxford). Published 22 December 2022. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →