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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 World+J+Gastroenterol
2007 ; 13
(48
): 6518-28
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Chronic hepatitis C virus infection: prevalence of extrahepatic manifestations
and association with cryoglobulinemia in Bulgarian patients
#MMPMID18161922
Stefanova-Petrova DV
; Tzvetanska AH
; Naumova EJ
; Mihailova AP
; Hadjiev EA
; Dikova RP
; Vukov MI
; Tchernev KG
World J Gastroenterol
2007[Dec]; 13
(48
): 6518-28
PMID18161922
show ga
AIM: To assess the prevalence of extrahepatic manifestations in Bulgarian
patients with chronic hepatitis C virus (HCV) infection and identify the clinical
and biological manifestations associated with cryoglobulinemia. METHODS: The
medical records of 136 chronically infected HCV patients were reviewed to assess
the prevalence of extrahepatic manifestations. Association between
cryoglobulin-positivity and other manifestations were identified using chi2 and
Fisher's exact test. Risk factors for the presence of extrahepatic manifestations
were assessed by logistic regression analysis. RESULTS: Seventy six percent
(104/136) of the patients had at least one extrahepatic manifestation. Clinical
manifestations included fatigue (59.6%), kidney impairment (25.0%), type 2
diabetes (22.8%), paresthesia (19.9%), arthralgia (18.4%), palpable purpura
(17.6%), lymphadenopathy (16.2%), pulmonary fibrosis (15.4%), thyroid dysfunction
(14.7%), Raynaud's phenomenon (11.8%), B-cell lymphoma (8.8%), sicca syndrome
(6.6%), and lichen planus (5.9%). The biological manifestations included
cryoglobulin production (37.5%), thrombocytopenia (31.6%), and autoantibodies:
anti-nuclear (18.4%), anti-smooth muscle (16.9%), anti-neutrophil cytoplasm
(13.2%) and anti-cardiolipin (8.8%). All extrahepatic manifestations showed an
association with cryoglobulin-positivity, with the exception of thyroid
dysfunction, sicca syndrome, and lichen planus. Risks factors for the presence of
extrahepatic manifestations (univariate analysis) were: age > or = 60 years,
female gender, virus transmission by blood transfusions, longstanding infection
(> or = 20 years), and extensive liver fibrosis. The most significant risks
factors (multivariate analysis) were longstanding infection and extensive liver
fibrosis. CONCLUSION: We observed a high prevalence of extrahepatic
manifestations in patients with chronic HCV infection. Most of these
manifestations were associated with impaired lymphoproliferation and cryoglobulin
production. Longstanding infection and extensive liver fibrosis were significant
risk factors for the presence of extrahepatic manifestations in HCV patients.