ISSN 2147-9720 | E-ISSN 2148-4279
Original Article
Subclinical enthesopathy in patients with psoriasis and its association with other disease parameters: a power Doppler ultrasonographic study
1 Department of Rheumatology, Al-Azhar University School of Medicine, Assiut, Egypt  
2 Department of Rheumatology and Andrology, Al-Azhar University School of Medicine, Assiut, Egypt  
Eur J Rheumatol 2017; 4: 24-28
DOI: 10.5152/eurjrheum.2017.16049
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Key Words: Psoriasis, enthesopathy, power Doppler ultrasonography
Abstract

Objective: This study aimed to determine the prevalence of subclinical enthesopathy in patients with psoriasis using power Doppler ultrasonography (PDUS) and its association with other disease parameters.

 

Material and Methods: A total of 50 patients with psoriasis (31 females) aged 19-70 years underwent a thorough clinical examination that included assessment of body mass index (BMI) and psoriasis area and severity index (PASI) score. Measurements of inflammatory markers, C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), serum uric acid, and plain radiography of the heels, knees, and sacroiliac joints were performed for all patients. Patients without clinical evidence of arthritis or enthesitis underwent an ultrasonographic (US) examination. According to the US examination, patients were classified into group I (patients with enthesitis) and group II (patients without enthesitis).

 

Results: In group I, Achilles enthesis was the most common site of US enthesitis (33.3%), followed by distal patellar enthesis (22.2%), proximal patellar enthesis (16.7%), quadriceps enthesis (16.7%), and plantar aponeurosis enthesis (11.1%). There was a statistically significant positive correlation between the occurrence of enthesitis and the patient’s age, disease duration, PASI score, BMI, and hyperuricemia (p<0.05 for each). In contrast, there was no significant correlation between enthesitis and sex or radiographic sacroiliitis (p>0.05 for each).

 

Conclusion: In addition to the importance of PDUS as a complimentary tool for examining enthesis in patients with psoriasis, the presence of high PASI score, increased BMI and hyperuricemia, and a long disease duration can be considered as predictive parameters for the presence of psoriatic enthesitis. 

 

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