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Published on: February 3, 2012
Hepatitis C virus infection associated arthritis
Magdy A Al-Dahshan1, Tarek A Al-Dahshan
1Department of Internal Medicine, Faculty of Medicine, Al-Azhar University, Nasr City, Cairo, Egypt.
Insights
Hepatitis C-related joint issues can mimic rheumatoid arthritis but often have a good prognosis. Differentiating these conditions is key for accurate diagnosis and treatment in patients with chronic Hepatitis C.
Area of Science:
- Rheumatology
- Hepatology
- Immunology
Background:
- Hepatitis C-related arthropathy is a common extrahepatic manifestation of Hepatitis C virus (HCV) infection.
- It can present symptoms similar to rheumatoid arthritis (RA), necessitating careful differentiation.
- While potentially disabling, the prognosis for HCV-related joint issues is generally favorable.
Purpose of the Study:
- To investigate the frequency and patterns of arthritis in chronic HCV patients.
- To differentiate HCV-related arthritis from rheumatoid arthritis using clinical, radiological, and laboratory markers.
- To assess the diagnostic utility of specific biomarkers in distinguishing between these conditions.
Main Methods:
- A comparative study involving 100 RA patients (Group I) and 100 chronic HCV patients (Group II).
- Clinical examinations, complete blood counts, ESR, CRP, liver function tests, HCV-RNA, rheumatoid factor (RF-IgM), anti-cyclic citrullinated peptide (Anti-CCP) antibody, and cryoglobulin testing were performed.
- Radiological assessment (X-rays) was conducted on HCV patients with articular involvement.
Main Results:
- 17% of chronic HCV patients exhibited articular manifestations, predominantly polyarticular (76.5%).
- Rheumatoid factor (RF- IgM) positivity was observed in 79% of RA patients and 64.7% of HCV patients with joint issues (no significant difference).
- Anti-CCP antibody positivity was significantly higher in RA patients (75%) compared to HCV patients (11.7%). Cryoglobulinemia was positive in 15% of RA patients and 23.5% of HCV patients with joint issues.
Conclusions:
- Anti-CCP antibody testing is a valuable tool for differentiating rheumatoid arthritis from Hepatitis C-related arthropathy.
- While RF-IgM and cryoglobulinemia may be present in both conditions, Anti-CCP positivity strongly suggests RA.
- Understanding these differences aids in appropriate management of joint manifestations in chronic HCV patients.
Abstract:
Hepatitis C-related arthropathy is one of the most common extra hepatic manifestations (EHMs) of HCV that may resemble rheumatoid arthritis (RA). Although symptoms can be disabling, prognosis typically is benign. The frequency and pattern of arthritis associated with chronic HCV patients and differentiation from RA was clinically, radiologically and laboratory studied. The study was carried out on two groups: GI: 100 patients diagnosed as RA according to the American College of Rheumatologist (ACR) and GII 100 chronic HCV patients. All patients underwent detailed history and complete general and locomotors examination. Complete blood picture (CBC), erythrocyte sedimentation rate (ESR), C reactive protein (CRP) and liver functions tests. HCV-RNA was done by HCV-RNA/RT-PCR. Anti-cyclic citrullinated peptide (Anti-CCP) antibody and rheumatoid factor (RF-IgM) was estimated by ELISA. Cryoglobulin were done to all patients. Plain X-rays for hands, wrists or knee were obtained on chronic HCV patients who had articular involvement at the time of anti-CCP antibody analysis. 17% GII had articular manifestations as 76.5% of them were polyarticular, while the remaining was monoarticular that associated with cryoglobulinemia. RF-IgM was 79% & 64.7% GI and HCV patients with articular manifestation (GII-A) respectively with no statistical significance. Anti-CCP was75 % and 11.7% positive of GI and GII-A respectively which was statistically significant. Cryoglobulinemia was positive in 15 % and 23.5% G1 and GII-A with no statistical significance.
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