1
|
Lee SY, Kim SS, Lee SH, Park HW. Chronic viral hepatitis accelerates lung function decline in smokers. Clin Exp Med 2023; 23:2159-2165. [PMID: 36449120 DOI: 10.1007/s10238-022-00963-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 11/22/2022] [Indexed: 12/05/2022]
Abstract
Although hepatitis B virus (HBV) and hepatitis C virus (HCV) are hepatotrophic viruses, they may affect pulmonary diseases. The purpose of this study was to assess whether chronic viral hepatitis (CVH) infection was associated with a rapid decline in lung function. Repeated measurements of lung function were obtained from a well-curated health check-up database. A case was defined as an individual positive for HBsAg or anti-HCV antibody. A control was randomly selected (from the same dataset) after 1:1 matching in terms of age, sex, height, the body mass index, and smoking status. Separate analyses of non-smokers and smokers were performed. A total of 701 cases were enrolled (586 with HBV and 115 with HCV). In cross-sectional analysis, both forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC) decreased significantly only in smokers (smoking cases vs. smoking controls) (adjusted p = 6.6 × 10-5 and adjusted p = 2.2 × 10-3, respectively). In longitudinal analysis, smoking cases showed significantly greater FEV1 and FVC decline rates than did smoking controls (adjusted p = 8.5 × 10-3 and adjusted p = 1.2 × 10-5, respectively). Such associations were particularly high in smoking cases at intermediate-to-high risk of hepatic fibrosis, as evaluated by the non-invasive Fibrosis-4 index. In summary, CVH was associated with both decreased lung function and accelerated lung function decline in smokers. A non-invasive measurement of hepatic fibrosis may be useful in predicting rapid lung function decline in smokers with CVH.
Collapse
Affiliation(s)
- Suh-Young Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Sun-Sin Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
- Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea
| | - So-Hee Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
- Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Republic of Korea
| | - Heung-Woo Park
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
- Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Republic of Korea.
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
| |
Collapse
|
2
|
Atabati E, Dehghani-Samani A, Mortazavimoghaddam SG. Association of COVID-19 and other viral infections with interstitial lung diseases, pulmonary fibrosis, and pulmonary hypertension: A narrative review. ACTA ACUST UNITED AC 2020; 56:1-9. [PMID: 33274259 PMCID: PMC7690312 DOI: 10.29390/cjrt-2020-021] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background Interstitial lung diseases (ILDs) include a broad range of diffuse parenchymal lung disorders and are characterized by diffuse parenchymal lung abnormalities leading to irreversible fibrosis. ILDs are correlated with the occurrence of pulmonary fibrosis (PF), which generally also results in pulmonary hypertension (PH). Interferons, secreted in larger amounts during viral infections, are an important possible risk factor contributing to this outcome. Aims In this narrative review, the role of 10 different viral infections on the generation/development of ILDs and their outcomes are described in detail. The aim of this review is to determine the probable risk that COVID-19 and other viral infections pose in the post-infection development of ILDs, PF, and PH. Methods Searches in PubMed (Medline), Google Scholar, Web of Science (ISI, Researcher ID, Publons), ResearchGate, Scopus, and secondary sources yielded 134 studies. After exclusion criteria, 92 studies containing the terms “Coronavirus” (COVID-19), “Interstitial Lung Diseases,” “Pulmonary Fibrosis,” “Pulmonary Hypertension” and “viral infections” were selected for inclusion. Selected articles were read with a focus on the roles of the 10 commonly studied viral infections on generation/intensification of ILDs and classified according to their dominant effect on the respiratory system, with a focus on each infection’s effects on parenchyma of the lungs and generation and/or intensification of ILDs. Results This review found that ILDs, PF, and PH can occur after a COVID-19 viral infection. Similar results are also seen in post-infection cases of other viral infections, including Epstein–Barr virus, Cytomegalovirus, Human herpesvirus-8, adenovirus, Hepatitis C, Torque-Teno (Transfusion-Transmitted) Virus, Human Immunodeficiency Virus, Severe Acute Respiratory Syndrome, and Middle East Respiratory Syndrome. Conclusion Results of current studies show probable possibility for generation and/or intensification of ILDs in COVID-19 infected patients like other studied viruses. Studies on determination of the actual prevalence of ILD, PF and PH in post-COVID-19 infected patients, follow-up studies on the prevention of ILDs in recovered COVID-19 patients, and meta-analyzed studies on pulmonary outcomes of pandemic corona viruses are strongly recommended as topics for future studies.
Collapse
Affiliation(s)
- Elham Atabati
- Department of Internal Medicine, Faculty of Medicine, Birjand University of Medical Sciences and Health Services, Birjand, Iran.,Clinical Research Development, Vali' Asr Hospital, Birjand University of Medical Sciences and Health Services, Birjand, Iran
| | - Amir Dehghani-Samani
- Faculty of Medicine, Birjand University of Medical Sciences and Health Services, Birjand, Iran.,Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
| | | |
Collapse
|
3
|
Zuberi FF, Zuberi BF, Rasheed T, Nawaz Z. Non-specific impairment of Lung Function on Spirometery in Patients with Chronic Hepatitis-C. Pak J Med Sci 2019; 35:360-364. [PMID: 31086515 PMCID: PMC6500828 DOI: 10.12669/pjms.35.2.73] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Objectives: To document frequency of non-specific impairment of lung functions (NILF) in patients of HCV and to compare according to gender, genotype, liver fibrosis score and smoking status. Methods: Patients of chronic hepatitis C were included after informed consent. Demographic data was recorded, and they underwent baseline investigations, fibroscan, abdominal ultrasound and PFT. Patients were segregated on basis of gender, fibroscan stages and smoking status. NILF was labelled if any two of three criteria are fulfilled (a) FVC < 80% of Predicted, (b) FEV1 < 80% Predicted, (c) FEV1/FVC ≥ 70. Results: Two hundred thirty four patients were of chronic HCV who fulfilled the selection criteria were inducted in study. These included 49.6% males and 50.4% females. There were 15.0% smokers, 16.2% were ex-smokers while 68.8% were never smokers. NILF was present in 130 (55.6%) out of which 61.5% were female and 38.5% were male (p <0.001), its presence in smokers was 56.2% and in never smokers was 55.3% (p=0.507). Presence of NILF increased with Fibroscan stages from F1 to F4 (p <0.001). Conclusions: NILF pattern on spirometry with normal chest radiograph is common among HCV patients. It was found more common in females and frequency increased progressively with fibro scan stages.
Collapse
Affiliation(s)
- Faisal Faiyaz Zuberi
- Faisal Faiyaz Zuberi, FCPS (Med), FCPS (Pulmo). Ojha Institute of Chest Diseases Dow University of Health Sciences, Karachi, Pakistan
| | - Bader Faiyaz Zuberi
- Bader Faiyaz Zuberi, FCPS. Dow Medical College Dow University of Health Sciences, Karachi, Pakistan
| | - Tazeen Rasheed
- Tazeen Rasheed, FCPS. Dow Medical College Dow University of Health Sciences, Karachi, Pakistan
| | - Zunaira Nawaz
- Zunaira Nawaz, FCPS. Dow Medical College Dow University of Health Sciences, Karachi, Pakistan
| |
Collapse
|
4
|
Ilyas SZ, Tabassum R, Hamed H, Rehman SU, Qadri I. Hepatitis C Virus-Associated Extrahepatic Manifestations in Lung and Heart and Antiviral Therapy-Related Cardiopulmonary Toxicity. Viral Immunol 2017; 30:633-641. [PMID: 28953449 DOI: 10.1089/vim.2017.0009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Besides liver cirrhosis and hepatocellular carcinoma, chronic hepatitis C virus (HCV) infection is associated with many extrahepatic manifestations (EHMs). HCV exhibits lymphotropism that is responsible for various EHM. An important characteristic of HCV is escape from the immune system, which enables it to produce chronic infections and autoimmune disorders along with accumulation of circulating immune complexes. These EHMs have large spectrum, because they affect many organs such as heart, lungs, kidney, brain, thyroid, and skin. HCV-related cardiac and pulmonary manifestations include myocarditis, cardiomyopathies, cardiovascular diseases (i.e., Stroke, ischemic heart disease), chronic obstructive pulmonary disease, idiopathic pulmonary fibrosis, asthma, and interstitial lung diseases. This review discusses etiology and pathogenesis of HCV-associated cardiac and pulmonary manifestations and how different genes, immune system, indirectly linked factors (mixed cryoglobulinemia), liver cirrhosis, and antiviral treatment are involved in HCV-related heart and lung diseases, however, their exact mechanism is not clear.
Collapse
Affiliation(s)
- Syeda Zainab Ilyas
- 1 Department of Microbiology and Molecular Genetics, University of the Punjab , Lahore, Pakistan
| | - Rabia Tabassum
- 1 Department of Microbiology and Molecular Genetics, University of the Punjab , Lahore, Pakistan
| | - Haroon Hamed
- 2 Department of Biological Sciences, King Abdul Aziz University , Jeddah, Kingdom of Saudi Arabia
| | - Shafiq Ur Rehman
- 1 Department of Microbiology and Molecular Genetics, University of the Punjab , Lahore, Pakistan
| | - Ishtiaq Qadri
- 2 Department of Biological Sciences, King Abdul Aziz University , Jeddah, Kingdom of Saudi Arabia
| |
Collapse
|
5
|
Retamozo S, Brito-Zerón P, Quartuccio L, De Vita S, Ramos-Casals M. Introducing treat-to-target strategies of autoimmune extrahepatic manifestations of chronic hepatitis C virus infection. Expert Rev Clin Pharmacol 2017; 10:1085-1101. [PMID: 28715943 DOI: 10.1080/17512433.2017.1357466] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION The hepatitis C virus (HCV) is recognized as one of the hepatic viruses most often associated with extrahepatic manifestations (EHMs). It is currently accepted that cryoglobulinemic vasculitis (CV) is the key autoimmune extrahepatic disease associated with HCV infection. Therapeutic approaches have mainly been based on the use of old antiviral interferon (IFN)-based regimens and immunosuppressive therapies, often with an inadequate balance between therapeutic benefits and excess side effects. Areas covered: Therapeutic management of HCV patients with EHMs, including both non-autoimmune (cardiovascular, hematological, general features) and autoimmune complications (organ-specific and systemic autoimmune diseases). Therapies included antiviral (IFN, ribavirin, direct-acting antivirals - DAAs-) and non-antiviral (immunosuppressive agents, rituximab, plasma exchanges) options. The review analyses the current evidence for proposing a treat-to-target (T2T) approach for HCV-related autoimmune EHMs based on an organ-by-organ strategy. Expert commentary: Eradication of HCV must be considered the key T2T in the therapeutic approach to HCV-related EHMs, as there has been a disruptive change due to the appearance of direct-acting antivirals (DAAs) as game-changers in HCV therapy, with an efficacy reaching nearly 100%. In this scenario, the central role played until now by IFN and ribavirin is not currently supported and they will not be used in the future.
Collapse
Affiliation(s)
- Soledad Retamozo
- a Hospital Privado Universitario de Córdoba , Instituto Universitario para las Ciencias Biomédicas de Córdoba (IUCBC) , Córdoba , Argentina.,b Laboratory of Autoimmune Diseases Josep Font , IDIBAPS-CELLEX , Barcelona , Spain.,g Instituto De Investigaciones En Ciencias De La Salud (INICSA) , Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) , Córdoba , Argentina
| | - Pilar Brito-Zerón
- b Laboratory of Autoimmune Diseases Josep Font , IDIBAPS-CELLEX , Barcelona , Spain.,c Autoimmune Diseases Unit, Department of Medicine , Hospital CIMA- Sanitas , Barcelona , Spain.,d Department of Autoimmune Diseases, ICMiD , Hospital Clínic , Barcelona , Spain
| | - Luca Quartuccio
- e Rheumatology Clinic, Department of Medical and Biological Sciences, Azienda Ospedaliero Universitaria S. Maria della Misericordia , University of Udine , Udine , Italy
| | - Salvatore De Vita
- e Rheumatology Clinic, Department of Medical and Biological Sciences, Azienda Ospedaliero Universitaria S. Maria della Misericordia , University of Udine , Udine , Italy
| | - Manuel Ramos-Casals
- b Laboratory of Autoimmune Diseases Josep Font , IDIBAPS-CELLEX , Barcelona , Spain.,d Department of Autoimmune Diseases, ICMiD , Hospital Clínic , Barcelona , Spain.,f Department of Medicine , University of Barcelona , Barcelona , Spain
| |
Collapse
|
6
|
Ferri C, Manfredi A, Sebastiani M, Colaci M, Giuggioli D, Vacchi C, Della Casa G, Cerri S, Torricelli P, Luppi F. Interstitial pneumonia with autoimmune features and undifferentiated connective tissue disease. Autoimmun Rev 2016; 15:61-70. [DOI: 10.1016/j.autrev.2015.09.003] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 09/08/2015] [Indexed: 12/30/2022]
|
7
|
Geri G, Maynard M, Rosenthal E, Fontaine H, Lacombe K, Slama L, Goujard C, Loustaud-Ratti V, Bergmann JF, Morlat P, Vittecoq D, Alric L, Cacoub P. Care of hepatitis C virus infection in France: modifications in three consecutive surveys between 1995 and 2010. Liver Int 2014; 34:1349-57. [PMID: 25368876 DOI: 10.1111/liv.12388] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND & AIMS To determine the characteristics of hepatitis C (HCV)- infected patients in 2010 and compare this survey with those reported in 1995 and 2001. PATIENTS AND METHODS Observational multicentre study conducted in 2010 in French internal medicine, infectious diseases and hepatology departments. RESULTS A total of 1621 HCV infected patients (mean age 50.1 ± 10.7 years; sex ratio M/F 1.8; genotype 1: 55.7%) were included. Of these, 910 (56.1%) were HIV–HCV co-infected, 463 (40.4%) were asymptomatic and 184 (16.1%) had cirrhosis at inclusion in this study. Positive viraemia was found in 1,025 patients (65.5%) at inclusion in this study. A complete pretreatment evaluation including investigation for HCV RNA, genotype determination and liver fibrosis was performed in 96.5, 80.5 and 68.7% of the 1,621 patients respectively. Previous and ongoing HCV treatments were noted in 49.6% and 20.1% of patients respectively. A sustained virological response (SVR) was observed in 271/801 (38.3%) patients, i.e. 44.1% and 30.7% in co-infected and mono-infected patients respectively. Cirrhosis was more frequent in the 2010 than in the 2001 and 1995 surveys (16.1% vs. 10.4% and 7.4% respectively; P < 0.0001). A complete pretreatment evaluation was performed in 57.9% and 50.9% of patients in 2010 and 2001 (P < 0.0001). Liver fibrosis evaluation was more frequent in 2010 than in the 2001 and 1995 surveys (68.7% vs. 62.7% and 28.7%, respectively, P < 0.0001). CONCLUSION The care of HCV-infected patients has changed significantly in ‘real life’ through an improvement of pretreatment evaluation before the antiviral introduction and the increased use of antivirals. New HCV therapy combinations including protease inhibitors are warranted to increase the SVR rate.
Collapse
Affiliation(s)
- Guillaume Geri
- Departement Hospitalo-Universitaire I2B; UPMC Univ Paris 06; UMR 7211; Paris France
- INSERM; UMR_S 959; Paris France
- CNRS; UMR 7211; Paris France
- AP-HP; Groupe Hospitalier Pitié-Salpêtrière; Department of Internal Medicine; Paris France
| | - Marianne Maynard
- Service d'hépatologie et de gastroentérologie; Hospices Civils de Lyon; Lyon France
| | - Eric Rosenthal
- Service de médecine interne; Centre Hospitalier Universitaire de Nice et Université de Nice Sophia-Antipolis; Paris France
| | - Hélène Fontaine
- Unité d'hépatologie médicale; Hôpital Cochin; Assistance Publique-Hôpitaux de Paris; Paris France
| | - Karine Lacombe
- Service de maladies infectieuses et tropicales; Hôpital Saint Antoine; Assistance Publique-Hôpitaux de Paris; Faculté de Médecine Pierre et Marie Curie; Paris France
| | - Laurence Slama
- Service de maladies infectieuses et tropicales; Hôpital Tenon; Assistance Publique-Hôpitaux de Paris; Paris France
| | - Cécile Goujard
- Service de médecine interne; Hôpital Bicêtre; Assistance Publique-Hôpitaux de Paris; Le Kremlin Bicêtre France
| | - Véronique Loustaud-Ratti
- Fédération d'Hépatologie; Hôpital Dupuytren; Centre Hospitalier Universitaire de Limoges; Limoges France
| | - Jean-François Bergmann
- Service de médecine interne A; Hôpital Lariboisière; Assistance Publique-Hôpitaux de Paris; UFR de Médecine Université Paris Diderot; Paris France
| | - Philippe Morlat
- Service de médecine interne et maladies infectieuses; Hôpital Saint André; Centre Hospitalier Universitaire de Bordeaux; Bordeaux France
| | - Daniel Vittecoq
- Département de médecine interne et infectiologie; Hôpital Paul Brousse; Assistance Publique-Hôpitaux de Paris; Villejuif France
| | - Laurent Alric
- Service de médecine interne; Centre Hospitalier Universitaire Purpan; UMR 152 Université Toulouse III; Toulouse France
| | - Patrice Cacoub
- Departement Hospitalo-Universitaire I2B; UPMC Univ Paris 06; UMR 7211; Paris France
- INSERM; UMR_S 959; Paris France
- CNRS; UMR 7211; Paris France
- AP-HP; Groupe Hospitalier Pitié-Salpêtrière; Department of Internal Medicine; Paris France
| | | |
Collapse
|
8
|
Saleh AM, Elalfy H, Arafa MM, Abousamra N, El-Badrawy A, Mohamed MA, Barakat EA, El Deek BS. Association between HCV induced mixed cryoglobulinemia and pulmonary affection: The role of TNF-alpha in the pathogenesis of pulmonary changes. EGYPTIAN JOURNAL OF CHEST DISEASES AND TUBERCULOSIS 2014. [DOI: 10.1016/j.ejcdt.2013.11.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
|
9
|
Marcellin P, Roberts SK, Reddy KR, Harrison SA, Jensen DM, Hadziyannis S, Diago M, Weltman M, Messinger D, Tatsch F, Rizzetto M. Safety profile of standard- vs. high-dose peginterferon alfa-2a plus standard-dose ribavirin in HCV genotype 1/4 patients: pooled analysis from 5 randomized studies. Expert Opin Drug Saf 2012; 11:901-9. [PMID: 22943161 DOI: 10.1517/14740338.2012.721927] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
OBJECTIVE This analysis examines the safety profile of standard- versus high-dose peginterferon alfa-2a. METHODS Data were pooled from five trials including HCV genotype 1- or 4-infected naive and treatment-experienced patients (n = 2,940). Patients were randomized to receive peginterferon alfa-2a at 180 μg/week (standard-dose; n = 1,672) or 360 μg/week (high-dose; n = 1,268) plus ribavirin 1,000/1,200 mg/day for 12 weeks; after 12 weeks, all received standard dose. This safety analysis was restricted to the first 12 weeks. RESULTS In standard and high-dose groups, similar frequencies of serious adverse events (SAEs, 3.2 and 4.2%, respectively) and treatment discontinuations for safety reasons (2.8 and 2.9%) were reported. More patients reported weight decrease as an adverse event (AE) in the 360 μg/week group (7.7 vs. 3.3%). Significant (p < 0.05) independent predictors for discontinuation due to safety were older age, male gender, lower albumin and low neutrophil count, but not the starting dose of peginterferon alfa-2a. Although more laboratory abnormalities were reported in patients receiving high-dose peginterferon alfa-2a, this was not reflected in AEs or discontinuations, suggesting these are adequately managed by dose modification. CONCLUSIONS High-dose peginterferon alfa-2a for 12 weeks does not significantly increase the incidence of SAEs or discontinuations for safety reasons, beyond that of a standard dose regimen.
Collapse
Affiliation(s)
- Patrick Marcellin
- Hôpital Beaujon, 100 Boulevard Du General Leclerc, Clichy, 92110, France.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
El-Etreby S, Gad YZ, Zeidan A, Elmalky N, Attiya M, El-Badrawy A, Ibrahem L. Chronic hepatitis C genotype 4 infection and interstitial pulmonary fibrosis. EGYPTIAN LIVER JOURNAL 2012. [DOI: 10.1097/01.elx.0000415485.73087.c8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
11
|
Martín-Suñé N, Ríos-Blanco JJ. Pulmonary affectation of vasculitis. Arch Bronconeumol 2012; 48:410-8. [PMID: 22682604 DOI: 10.1016/j.arbres.2012.04.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2012] [Accepted: 04/09/2012] [Indexed: 10/28/2022]
Abstract
Respiratory tract affectation is frequent in some types of vasculitis, fundamentally in those associated with anti-neutrophil cytoplasmic antibodies (ANCA). The clinical, radiological and histopathological presentation is also heterogeneous and conditions the evolution. It is therefore necessary to establish an early diagnosis based on the symptoms because, thanks to new treatments, and despite them being potentially serious diseases, their prognosis has improved considerably in recent years. The present paper updates the diagnosis and the new therapeutic options for pulmonary vasculitis.
Collapse
|
12
|
Abstract
Cryoglobulins are immunoglobulins that precipitate in vitro at temperatures less than 37°C and produce organ damage through two main pathways: vascular sludging (hyperviscosity syndrome, mainly in type I cryoglobulinaemia) and immune-mediated mechanisms (principally vasculitis, in mixed cryoglobulinaemia). Cryoglobulinaemia is associated with many illnesses, which can be broadly grouped into infections, autoimmune disorders, and malignancies; the most common cause is infection with hepatitis C virus. Mixed cryoglobulinaemic syndrome is diagnosed when a patient has typical organ involvement (mainly skin, kidney, or peripheral nerve) and circulating cryoglobulins. Cutaneous purpura is the most common manifestation of cryoglobulinaemic vasculitis. The most frequently affected internal organs are the peripheral nerves, kidneys, and joints. The course varies widely and prognosis is influenced by both cryoglobulinaemic damage to vital organs and by comorbidities associated with underlying diseases. More than 90% of cases of cryoglobulinaemia have a known underlying cause; therefore treatment is focused on the cause of the disorder rather than merely symptomatic relief. Studies suggest that both combined or sequential antiviral therapies and targeted biological treatments might be more effective than monotherapy.
Collapse
Affiliation(s)
- Manuel Ramos-Casals
- Josep Font Laboratory of Autoimmune Diseases, Institut Clínic de Medicina I Dermatologia, Hospital Clínic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
| | | | | | | |
Collapse
|
13
|
Idiopathic bronchiolitis with features of diffuse panbronchiolitis in an African-American patient with hepatitis C virus infection. Ann Diagn Pathol 2010; 14:443-6. [DOI: 10.1016/j.anndiagpath.2009.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Accepted: 11/09/2009] [Indexed: 11/20/2022]
|
14
|
|
15
|
Kanazawa H. Relationship between hepatitis C virus infection and pulmonary disorders: potential mechanisms of interaction. Expert Rev Clin Immunol 2010; 2:801-10. [PMID: 20477634 DOI: 10.1586/1744666x.2.5.801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Recently, an increasing number of reports have suggested that chronic hepatitis C virus (HCV) infection is associated with pulmonary disorders. The effects of HCV on the lung may present as worsening of lung function and impaired responses to therapy in patients with chronic obstructive pulmonary disease and asthma. Moreover, chronic HCV infection may be associated with the pathogenesis of interstitial lung disease. It is believed that chronic HCV infection may contribute to the immune responses modulating the pathogenic processes underlying pulmonary disorders and, therefore, may lead to a wide spectrum of clinical presentations. Potential candidates for a role in these immune responses are the CD8(+) T lymphocytes and inflammatory cytokines. In this review, the effects of HCV on the lung and the potential mechanisms of interaction between chronic HCV infection and pulmonary disorders will be discussed.
Collapse
Affiliation(s)
- Hiroshi Kanazawa
- Osaka City University, Department of Respiratory Medicine, Graduate School of Medicine, 1-4-3, Asahi-machi, Abenoku, Osaka 545-8585, Japan.
| |
Collapse
|
16
|
Spagnolo P, Zeuzem S, Richeldi L, du Bois RM. The complex interrelationships between chronic lung and liver disease: a review. J Viral Hepat 2010; 17:381-90. [PMID: 20384964 DOI: 10.1111/j.1365-2893.2010.01307.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lung complications may occur as a result of hepatic disease from any cause and represent a highly heterogeneous group of conditions. Early recognition of such complications may be challenging but is crucial both in forming a meaningful differential diagnosis and in avoiding severe sequelae and irreversible damage. Although a number of different pathogenetic mechanisms are likely to be involved, chronic liver dysfunction may cause pulmonary manifestations because of alterations in the production or clearance of circulating cytokines and other mediators. This is likely to be the case in hepatopulmonary syndrome, portopulmonary hypertension and primary biliary cirrhosis, although their pathogenesis remains largely speculative. Moreover, the severity of lung manifestations may or may not correspond to that of liver impairment, making disease outcome often unpredictable. Congenital and inflammatory disorders, however, may primarily affect both the liver and lung. Apart from specific diseases, a number of medications can also result in pulmonary and hepatic toxic effects. This is particularly important with cytokine therapy - used to treat viral hepatitis, among other diseases - because treatment consists of drug discontinuation, which, in turn, may cause reactivation or progression of the underlying disease that the drug was used for. This review summarizes salient diagnostic and therapeutic aspects of these often misdiagnosed conditions and highlights, based on the most recent literature, the need for early referral of such patients to centres with specific expertise in the field. In fact, a multidisciplinary approach involving pulmonologists, hepatologists and, in particularly severe cases, transplant surgeons has been already proven successful.
Collapse
Affiliation(s)
- P Spagnolo
- Center for Rare Lung Diseases, Department of Oncology, Haematology, and Respiratory Diseases, University of Modena and Reggio Emilia, Modena, Italy.
| | | | | | | |
Collapse
|
17
|
Management of hepatitis C virus-related mixed cryoglobulinemia. Am J Med 2010; 123:400-8. [PMID: 20399313 DOI: 10.1016/j.amjmed.2009.09.038] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2009] [Revised: 09/09/2009] [Accepted: 09/10/2009] [Indexed: 01/14/2023]
Abstract
Mixed cryoglobulinemia is a chronic immune complex-mediated disease strongly associated with hepatitis C virus (HCV) infection. Mixed cryoglobulinemia is a vasculitis of small and medium-sized arteries and veins, due to the deposition of complexes of antigen, cryoglobulin and complement in the vessel walls. The main clinical features of mixed cryoglobulinemia vasculitis include the triad of palpable purpura, arthralgias, and weakness, and other pathological conditions such as glomerulonephritis, peripheral neuropathy, skin ulcers, and widespread vasculitis. The treatment of HCV-related mixed cryoglobulinemia is difficult due to the multifactorial origin and clinical polymorphism of the syndrome. It can be directed to eradicate the HCV infection, suppress the B-cell clonal expansion and cryoglobulin production, or ameliorate symptoms. The choice of the most appropriate treatment is strictly related to the assessment of disease activity, and to the extent and severity of organ involvement.
Collapse
|
18
|
Abstract
Cryoglobulinemia are immune complexes that may induce systemic cryoglobulinemic vasculitis, a small-vessel vasculitis involving the skin, the joints, the peripheral nerve system, and the kidneys. During the last 15 years, progresses have been done after the discovery of the hepatitis C virus, the main cause of cryoglobulins. Main factors associated with cryoglobulin production are female gender, alcohol intake above 50 g/day, extensive liver fibrosis, and steatosis. Symptomatic cryoglobulins (i.e., vasculitis) are associated with older age, longer duration of infection, and main characteristics of cryoglobulin (type II, IgM kappa, high serum levels). The physiopathology is complex, and it involves humoral immunity, B- and T-cellular immunity but not the virus itself. Peg-Interféron alpha Ribavirine combination leads to a virological and clinical response of the vasculitis in about 70% of patients. In nonresponders, recent open series suggested the efficacy of Rituximab with a good response in up to 80% of patients but a relapse in 42% after 7 months after the last infusion. For future prospects and projects, new therapeutic strategies include a combination of best antiviral treatment with Peg-Interferon plus Ribavirin and Rituximab. Multicenter controlled trials are mandatory.
Collapse
|
19
|
Abstract
Mixed cryoglobulinemia (MC), type II and type III, refers to the presence of circulating cryoprecipitable immune complexes in the serum and manifests clinically by a classical triad of purpura, weakness and arthralgias. It is considered to be a rare disorder, but its true prevalence remains unknown. The disease is more common in Southern Europe than in Northern Europe or Northern America. The prevalence of 'essential' MC is reported as approximately 1:100,000 (with a female-to-male ratio 3:1), but this term is now used to refer to a minority of MC patients only. MC is characterized by variable organ involvement including skin lesions (orthostatic purpura, ulcers), chronic hepatitis, membranoproliferative glomerulonephritis, peripheral neuropathy, diffuse vasculitis, and, less frequently, interstitial lung involvement and endocrine disorders. Some patients may develop lymphatic and hepatic malignancies, usually as a late complication. MC may be associated with numerous infectious or immunological diseases. When isolated, MC may represent a distinct disease, the so-called 'essential' MC. The etiopathogenesis of MC is not completely understood. Hepatitis C virus (HCV) infection is suggested to play a causative role, with the contribution of genetic and/or environmental factors. Moreover, MC may be associated with other infectious agents or immunological disorders, such as human immunodeficiency virus (HIV) infection or primary Sjögren's syndrome. Diagnosis is based on clinical and laboratory findings. Circulating mixed cryoglobulins, low C4 levels and orthostatic skin purpura are the hallmarks of the disease. Leukocytoclastic vasculitis involving medium- and, more often, small-sized blood vessels is the typical pathological finding, easily detectable by means of skin biopsy of recent vasculitic lesions. Differential diagnoses include a wide range of systemic, infectious and neoplastic disorders, mainly autoimmune hepatitis, Sjögren's syndrome, polyarthritis, and B-cell lymphomas. The first-line treatment of MC should focus on eradication of HCV by combined interferon-ribavirin treatment. Pathogenetic treatments (immunosuppressors, corticosteroids, and/or plasmapheresis) should be tailored to each patient according to the progression and severity of the clinical manifestations. Long-term monitoring is recommended in all MC patients to assure timely diagnosis and treatment of the life-threatening complications. The overall prognosis is poorer in patients with renal disease, liver failure, lymphoproliferative disease and malignancies.
Collapse
Affiliation(s)
- Clodoveo Ferri
- Dipartimento Medicine e Specialità Mediche, Cattedra ed U,O,C, di Reumatologia, Università di Modena & Reggio Emilia, Modena, Italy.
| |
Collapse
|
20
|
Abstract
Hepatitis C virus may cause hepatic and extrahepatic diseases. Extrahepatic manifestations range from disorders for which a significant association with viral infection is supported by epidemiologic and pathogenetic data, to anecdotal observations without clear proof of causality. This article describes the diagnosis and treatment of these diseases.
Collapse
|
21
|
Stefanova-Petrova DV, Tzvetanska AH, Naumova EJ, Mihailova AP, Hadjiev EA, Dikova RP, Vukov MI, Tchernev KG. Chronic hepatitis C virus infection: Prevalence of extrahepatic manifestations and association with cryoglobulinemia in Bulgarian patients. World J Gastroenterol 2007; 13:6518-28. [PMID: 18161922 PMCID: PMC4611291 DOI: 10.3748/wjg.v13.i48.6518] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
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 χ2 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 ≥ 60 years, female gender, virus transmission by blood transfusions, longstanding infection (≥ 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.
Collapse
|
22
|
Crinquette C, de Seze J, Maurage CA, Launay D, Ferriby D, Delalande S, Hachulla E, Stojkovic T, Vermersch P. Polymyosite et atteinte de nerfs crâniens. Rev Neurol (Paris) 2007; 163:1075-81. [DOI: 10.1016/s0035-3787(07)74180-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
23
|
Ferri C, Antonelli A, Mascia MT, Sebastiani M, Fallahi P, Ferrari D, Pileri SA, Zignego AL. HCV-related autoimmune and neoplastic disorders: the HCV syndrome. Dig Liver Dis 2007; 39 Suppl 1:S13-21. [PMID: 17936215 DOI: 10.1016/s1590-8658(07)80005-3] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hepatitis C virus (HCV) chronic infection may be associated with a great number of both hepatic and extrahepatic manifestations. HCV lymphotropism is responsible for poly-oligoclonal B-lymphocyte expansion, which is the common underlying alteration in a significant percentage of HCV-infected individuals. The consequent production of different autoantibodies and immune-complexes, including cryoglobulins, may lead to organ- and non-organ-specific immunological alterations. Mixed cryoglobulinemia, a small-vessel systemic vasculitis, is characterized by the coexistence of autoimmune and lymphoproliferative alterations; therefore, it represents the prototype of HCV-associated disorders. Moreover, HCV shows an oncogenic potential; several studies support its pathogenetic link with some malignancies, mainly hepatocellular carcinoma and B-cell lymphomas. On the whole, HCV-related disorders present a heterogeneous geographical distribution, suggesting a role of other important genetic and/or environmental cofactors. While the majority of HCV-infected individuals is asymptomatic or may develop only liver manifestations, a significant percentage of them may develop a variable combination of autoimmune lymphoproliferative disorders. The resulting multiform clinico-pathological condition can be termed HCV syndrome. The natural history of HCV syndrome is the expression of multifactorial and multistep pathogenetic process, which usually proceeds from mild, often isolated manifestations to systemic immune-mediated disorders, and less frequently to overt malignancies.
Collapse
Affiliation(s)
- C Ferri
- Chair and Rheumatology Unit, Department of Internal Medicine, University of Modena e Reggio Emilia, Medical Sehool, Modena, Italy
| | | | | | | | | | | | | | | |
Collapse
|
24
|
Zignego AL, Ferri C, Pileri SA, Caini P, Bianchi FB. Extrahepatic manifestations of Hepatitis C Virus infection: a general overview and guidelines for a clinical approach. Dig Liver Dis 2007; 39:2-17. [PMID: 16884964 DOI: 10.1016/j.dld.2006.06.008] [Citation(s) in RCA: 181] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2005] [Revised: 06/03/2006] [Accepted: 06/06/2006] [Indexed: 02/08/2023]
Abstract
Hepatitis C Virus is associated with a wide series of extrahepatic manifestations. Based on available data the link between the virus and some of these extrahepatic diseases is only suggested and needs further confirmation. Hepatitis C Virus-related lymphoproliferative disorders, whose prototype is mixed cryoglobulinaemia, represent the most closely related extrahepatic manifestations of Hepatitis C Virus. Other Hepatitis C Virus-associated disorders include nephropathies, thyreopathies, sicca syndrome, idiopathic pulmonary fibrosis, porphyria cutanea tarda, lichen planus, diabetes, chronic polyarthritis, cardiopathy and atherosclerosis. A pathogenetic link between Hepatitis C Virus and some extrahepatic manifestations was confirmed by their responsiveness to antiviral therapy, which is now deemed the first therapeutic option to consider. By contrast, there are diseases where treatment with interferon was ineffective or dangerous. The aim of the present paper is to outline the most recent evidence concerning extrahepatic disorders that are possibly associated with Hepatitis C Virus infection. Special emphasis will be given to discussion of the most appropriate clinical approaches to be adopted in order to diagnose, treat (possibly prevent) and follow-up extrahepathic diseases in patients with Hepatitis C Virus infection.
Collapse
Affiliation(s)
- A L Zignego
- Department of Internal Medicine, Medical School, Center for Research, Transfer and High Education DENOthe, Center for the Study of Systemic Manifestations of Hepatitis Viruses MaSVE, University of Florence, Florence, Italy.
| | | | | | | | | |
Collapse
|
25
|
Erturk A, Tokgonul AN, Capan N, Erturk H, Dursun AB, Bozkaya H. Pulmonary alterations in patients with chronic HCV infection. Dig Liver Dis 2006; 38:673-6. [PMID: 16793354 DOI: 10.1016/j.dld.2006.05.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2005] [Revised: 05/10/2006] [Accepted: 05/12/2006] [Indexed: 02/08/2023]
Abstract
BACKGROUND Chronic hepatitis C virus infection has been reported in association with several extrahepatic manifestations. Included in this list is interstitial lung involvement. AIMS The aim of the present study was to evaluate pulmonary alterations in patients with chronic hepatitis C virus infection. PATIENTS Twenty-one patients with chronic hepatitis C virus infection were enrolled into a prospective study. One patient has been excluded because of underlying tuberculosis. METHODS All patients underwent pulmonary function tests, diffusion capacity for carbon monoxide and high-resolution computed tomography of the chest. RESULTS Forced vital capacity, forced expiratory volume in first second/forced vital capacity and forced expiratory volume in first second values were reduced to less than 80% of predicted values in 3, 11 and 5 patients, respectively. Diffusion capacity for carbon monoxide was low in 12 patients (60%), 8 of whom had simultaneous decrease in diffusion capacity for carbon monoxide/VA values. Thorax high-resolution computed tomography revealed abnormal findings in eight patients (40%). Fifteen patients with chronic hepatitis C virus infection (75%) had at least one pulmonary alteration as evidenced by abnormal pulmonary function tests, diffusion capacity for carbon monoxide and/or high-resolution computed tomography results. CONCLUSION In spite of a limited study population, these findings may implicate that pulmonary manifestations of chronic hepatitis C virus infection are frequently underdiagnosed.
Collapse
Affiliation(s)
- A Erturk
- Department of Respiratory Medicine, Ataturk Chest Disease and Thoracic Surgery Training and Research Hospital, Ankara, Turkey.
| | | | | | | | | | | |
Collapse
|
26
|
Moorman J, Saad M, Kosseifi S, Krishnaswamy G. Hepatitis C virus and the lung: implications for therapy. Chest 2005; 128:2882-92. [PMID: 16236966 DOI: 10.1378/chest.128.4.2882] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Hepatitis C virus (HCV) infection is a chronic blood-borne disease that affects > 4,000,000 individuals in the United States. The majority of individuals with HVC infection acquire a chronic hepatitis that predisposes them to the complications of cirrhosis and hepatoma. Chronic HCV infection is, however, associated with multiple extrahepatic manifestations as well, including recently recognized effects on the lung. These include primary effects on lung function, as well as secondary effects in the settings of progressive liver disease and drug treatment for HCV. In this article, we discuss the emerging clinical data that support a role for HCV infection in lung disease, describe the multiple pulmonary manifestations of this viral infection, and outline the therapies available for specific pulmonary complications of chronic HCV infection.
Collapse
Affiliation(s)
- Jonathan Moorman
- Division of Infectious Diseases, Department of Internal Medicine, James H. Quillen VAMC and James H. Quillen College of Medicine, East Tennessee State University, Box 70622, Johnson City, TN 37614, USA.
| | | | | | | |
Collapse
|
27
|
Deniz O, Ors F, Tozkoparan E, Ozcan A, Gumus S, Bozlar U, Bilgic H, Ekiz K, Demirci N. High resolution computed tomographic features of pulmonary alveolar microlithiasis. Eur J Radiol 2005; 55:452-60. [PMID: 16129256 DOI: 10.1016/j.ejrad.2005.01.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2004] [Revised: 01/03/2005] [Accepted: 01/05/2005] [Indexed: 02/07/2023]
Abstract
BACKGROUND Pulmonary alveolar microlithiasis (PAM) is a rare, chronic lung disease with unknown etiology and with a nonuniform clinical course. Nonuniformity of clinical course might be related to the degree of pulmonary parenchymal alterations, which can be revealed with high resolution computed tomography (HRCT). However, HRCT findings of PAM were not fully described in the current literature. AIM The aim of this study was to interpret and to contribute to describe HRCT findings of PAM and to investigate a correlation between profusion of micro nodules (MN) and pulmonary parenchymal alterations in patients with PAM. MATERIAL AND METHODS Ten male patients with PAM (mean age: 22+/-3.2) were included into the study. HRCT images were assessed for patterns, distribution, and profusion of pulmonary abnormalities. Dividing the lungs into three zones, profusion of abnormalities was assessed. A profusion score (1-4) was given and the scores of each zone were then summed to obtain a global profusion score for HRCT ranging from 0 to 12. Also a parenchymal alteration score (PAS) was defined with respect to profusion of abnormalities. Chest X-rays were also scored. RESULTS All of ten patients with PAM had findings of interstitial lung disease in varying degrees on their HRCTs. HRCT findings of patients with PAM were as following: MN, parenchymal bands (PB), ground glass opacity (GGO) and, sub pleural interstitial thickening (SPIT) in 10 patients; interlobular septal thickening (ILST), in 9 patients; paraseptal emphysema (PSA) in 8 patients; centrilobular emphysema (CLA) in 7 patients; bronchiectasis (BE), confluent micro nodules (CMN) in 6 patients; peri bronchovascular interstitial thickening (PBIT) in 5 patients; panacinar emphysema (PANAA) in 3 patients; pleural calcification (PC) in 2 patients. A significant correlation between MN scores and PAS (r=0.68, p=0.031, MN scores and GGO scores (r=0.69, p=0.027) and, MN scores and CLA scores (r=0.67, p=0.034) was detected. We also found significant correlations between HRCT scores and results of pulmonary function tests (PFTs), HRCT scores and chest X-ray score (CXRS) and, CXRS and results of PFTs. CONCLUSION We conclude that patients with PAM may have all findings of interstitial lung disease in varying degrees as well as MNs on their HRCTs. More importantly, this study suggests a proportional relationship between profusion of MNs and parenchymal alterations in patients with PAM. This study also suggests that the degree of parenchymal alterations closely related with the degree of pulmonary function loss in patients with PAM.
Collapse
Affiliation(s)
- Omer Deniz
- Pulmonary Medicine and Tuberculosis, Gulhane Military Medical Academy, Etlik, Ankara 06018, Turkey.
| | | | | | | | | | | | | | | | | |
Collapse
|
28
|
|
29
|
Sung SA, Ko GJ, Kim JY, Kim MG, Lee JE, Kim GI, Jo SK, Cho WY, Kim HK. Desquamative interstitial pneumonia associated with concurrent cytomegalovirus and Aspergillus pneumonia in a renal transplant recipient. Nephrol Dial Transplant 2005; 20:635-8. [PMID: 15735246 DOI: 10.1093/ndt/gfh548] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Su-Ah Sung
- Department of Internal Medicine, 126-1 Anam-Dong 5th Street, Sungbuk-Ku, Korea University Hospital, Seoul, Korea
| | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Ferri C, Sebastiani M, Giuggioli D, Cazzato M, Longombardo G, Antonelli A, Puccini R, Michelassi C, Zignego AL. Mixed cryoglobulinemia: demographic, clinical, and serologic features and survival in 231 patients. Semin Arthritis Rheum 2004; 33:355-74. [PMID: 15190522 DOI: 10.1016/j.semarthrit.2003.10.001] [Citation(s) in RCA: 293] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Mixed cryoglobulinemia (MC) is a systemic vasculitis secondary to circulating immune complex deposition in the small vessels. In the overwhelming majority of patients, hepatitis C virus (HCV) infection represents the triggering factor of the disease. MC is characterized by multiple organ involvement, mainly skin, liver, renal, peripheral nerves, and less frequently by widespread vasculitis and cancer. OBJECTIVES To investigate the demographic, clinical, serologic features, and survival in a large series of MC patients. METHODS The study included 231 MC patients recruited between 1972 and 2001 at the Rheumatology Unit of the University of Pisa. All patients underwent wide clinicoserologic and virologic assessment. Cumulative survival rates were computed by the Kaplan-Meier method; moreover, the prognostic relevance of the main variables was investigated by Cox model analysis. RESULTS In 92% of cases, the presence of HCV infection was demonstrated (anti-HCV antibody, 92%; HCV RNA, 90%), whereas hepatitis B virus (HBV) represented the possible causative agent in only 1.8% of patients (HBV DNA). Clinically, the MC syndrome followed a relatively benign clinical course in over 50% of cases, whereas a moderate-severe clinical course was observed in one third of patients whose prognosis was severely affected by renal and/or liver failure. In a limited, but significant, percentage (15%) of individuals, the disease was complicated by a malignancy, ie, B-cell lymphoma, and less frequently by hepatocellular carcinoma, or thyroid cancer. The survival study by the Kaplan-Meier method revealed a significantly lower cumulative 10th-year survival, calculated from time of diagnosis, in MC patients compared with expected death in the age- and sex-matched general population. Moreover, significantly lower survival rates were observed in males and in subjects with renal involvement. The multivariate analysis by the Cox proportional hazard regression model further supported the above findings: an increased mortality risk of 98% was observed for male gender (male/female hazard ratio, 1.978) and of 197% in patients with, compared with those without, renal involvement (hazard ratio, 2.967). At the end of the follow-up, 97 patients were deceased, and in 79 of 97 patients, the causes of death were ascertained: nephropathy (33%), malignancies (23%), liver involvement (13%), and diffuse vasculitis (13%) were the most frequent causes of death. CONCLUSIONS Careful patient monitoring is recommended for a timely diagnosis of life-threatening MC complications, mainly nephropathy, widespread vasculitis, and B-cell lymphoma or other malignancies.
Collapse
Affiliation(s)
- Clodoveo Ferri
- Department of Internal Medicine, University of Pisa Medical School, Pisa, Italy.
| | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Iskandar SB, McKinney LA, Shah L, Roy TM, Byrd RP. Desquamative Interstitial Pneumonia and Hepatitis C Virus Infection: A Rare Association. South Med J 2004; 97:890-3. [PMID: 15455981 DOI: 10.1097/01.smj.0000136259.92633.e8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Extrahepatic manifestations of hepatitis C virus (HCV) infection are common. The authors report the unusual occurrence of desquamative interstitial pneumonia (DIP) in a patient with HCV. An immunologic response to HCV infection may have a role in the pathogenesis of DIP in patients with chronic HCV. Since DIP is treatable, HCV patients with pulmonary infiltrates should be thoroughly investigated for this disorder. In our experience, the use of steroids in HCV-associated DIP improved the patient's respiratory status without increasing the viral load.
Collapse
Affiliation(s)
- Said B Iskandar
- The Veterans Affairs Medical Center, Mountain Home, TN 37684-4000, USA
| | | | | | | | | |
Collapse
|
32
|
Affiliation(s)
- Vincent Agnello
- Department of Laboratory Medicine, Lahey Clinic Medical Center, 41 Mall Road, Burlington, MA 01805, USA.
| | | |
Collapse
|
33
|
Okutan O, Kartaloglu Z, Ilvan A, Kutlu A, Bozkanat E, Silit E. Evaluation of high-resolution computed tomography and pulmonary function tests in patients with chronic hepatitis C virus infection. World J Gastroenterol 2004; 10:381-4. [PMID: 14760762 PMCID: PMC4724917 DOI: 10.3748/wjg.v10.i3.381] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
AIM: To investigate pulmonary involvement via pulmonary function tests (PFT) and high-resolution computed tomography (HRCT) in patients with chronic hepatitis C virus (HCV) infection.
METHODS: Thirty-four patients with chronic HCV infection without diagnosis of any pulmonary diseases and 10 healthy cases were enrolled in the study. PFT and HRCT were performed in all cases.
RESULTS: A decrease lower than 80% of the predicted value was detected in vital capacity in 9/34 patients, in forced expiratory volume in one second in 8/34 patients, and in forced expiratory flow 25 - 75 in 15/34 patients, respectively. Carbon monoxide diffusing capacity (DLCO) was decreased in 26/34 patients. Findings of interstitial pulmonary involvement were detected in the HRCT of 16/34 patients. Significant difference was found between controls and patients with HCV infection in findings of HRCT (χ2 = 4.7, P = 0.003). Knodell histological activity index (KHAI) of 28/34 patients in whom liver biopsy was applied was 9.0 ± 4.7. HRCT findings, PFT values and DLCO were not affected by KHAI in patients with HCV infection. In these patients, all the parameters were related with age.
CONCLUSION: We suggest that chronic hepatitis C virus infection may cause pulmonary interstitial involvement without evident respiratory symptoms.
Collapse
Affiliation(s)
- Oguzhan Okutan
- GATA Haydarpasa Training Hospital, Department of Pulmonary Diseases, Istanbul, Turkey.
| | | | | | | | | | | |
Collapse
|
34
|
Brunetti G, Delmastro M, Nava S, Pignatti P, Bossi A, Gatti M, Furione M. Detection of HCV-RNA in bronchoalveolar lavage from a woman with pulmonary fibrosis. Respir Med 2003; 97:736-8. [PMID: 12814163 DOI: 10.1053/rmed.2003.1489] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- G Brunetti
- Respiratory Unit, Salvatore Maugeri Foundation, IRCCS, Pavia, Italy.
| | | | | | | | | | | | | |
Collapse
|
35
|
Reed AM, Ytterberg SR. Genetic and environmental risk factors for idiopathic inflammatory myopathies. Rheum Dis Clin North Am 2002; 28:891-916. [PMID: 12506777 DOI: 10.1016/s0889-857x(02)00029-7] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Although the studies discussed are beginning to reveal a number of genetic and possible environmental risk factors for myositis, further investigations are needed to fully understand and classify these syndromes. The difficulties in this process include small numbers of subjects with varying disease phenotypes available for study, polygenic risk factors for which it remains unclear which are primary and which are secondary or linked genes, and the lack of validated environmental exposure assessment tools. New technologies and international collaborative approaches, however, may overcome some of these difficulties and allow us to identify genetic and environmental risk factors, as well as the critical gene-environment interactions in the IIM and its subgroups. Nonetheless, our understanding of these diseases is still in the early stages. Although we have learned a great deal about these disorders through detailed investigations over the last several decades, we have even further to go to understand the environmental triggers and genetic susceptibilities for the myositis syndromes.
Collapse
Affiliation(s)
- Ann M Reed
- Division of Pediatric Rheumatology, Departments of Pediatrics and Internal Medicine, Mayo Clinic Rochester, Mayo Medical School, 200 First Street SW, Rochester, MN 55905, USA.
| | | |
Collapse
|
36
|
Kula M, Gulmez I, Tutus A, Coskun A, Gursoy S, Oymak S. Impaired lung epithelial permeability in hepatitis C virus antibody positive patients detected by 99mTc-DTPA aerosol scintigraphy. Nucl Med Commun 2002; 23:441-6. [PMID: 11973484 DOI: 10.1097/00006231-200205000-00003] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Chronic hepatitis C virus (HCV) infection has been recently identified as an aetiological agent in idiopathic pulmonary fibrosis. The present study was designed to determine the pulmonary clearance rate of 99mTc-diethylenetriaminepentaacetic acid (99mTc-DTPA) in asymptomatic HCV antibody positive (HCV Ab+) patients and the role of 99mTc-DTPA aerosol scintigraphy in the early detection of lung involvement. Twenty-six non-smoker HCV Ab+ and HCV-RNA (+) patients (20 female, six male; aged 43+/-11 years), with no clinical pulmonary symptoms, and normal radiological findings, were studied. Thirty-one healthy non-smoker volunteers (24 female, seven male; aged 40+/-10 years) were taken as a control group. 99mTc-DTPA aerosol inhalation scintigraphy and pulmonary function tests were performed in all patients and in controls. On the basis of the scintigrams the percentage decline in activity per minute (Kep) was evaluated, which represented an accurate parameter of lung membrane permeability. The mean Kep values of healthy controls (0.78+/-0.13 for left lung, 0.79+/-0.14 for right lung) were significantly lower than HCV Ab+ patients (1.10+/-0.31 for left lung, 1.11+/-0.34 for right lung, P<0.001). But no significant change was observed in PFT (P>0.05). We conclude that subclinical alveolitis and/or interstitial lung disease may be present in patients with HCV Ab+, since it is known that an increase in the epithelial permeability of the lung is an early manifestation of interstitial disease.
Collapse
Affiliation(s)
- M Kula
- Department of Nuclear Medicine, Erciyes University, School of Medicine, Kayseri, Turkey.
| | | | | | | | | | | |
Collapse
|
37
|
Abstract
Idiopathic pulmonary fibrosis is a rapidly progressive illness of unknown cause characterized by sequential acute lung injury with subsequent scarring and end-stage lung disease. Treatment at present remains largely supportive, with evidence that patients' satisfaction and survival may be improved by referral to centers specializing in the evaluation of interstitial lung diseases. Although no drug therapy has clearly been demonstrated to benefit patients with idiopathic pulmonary fibrosis, a number of novel investigational agents hold promise for future study. Given the poor prognosis associated with idiopathic pulmonary fibrosis, patients should be referred to regional centers of expertise for enrollment in therapeutic clinical trials or for lung transplantation.
Collapse
Affiliation(s)
- T J Gross
- Department of Internal Medicine, University of Iowa College of Medicine and Veterans Affairs Medical Center, Iowa City, USA
| | | |
Collapse
|
38
|
Abstract
The hepatitis C virus (HCV) is a common virus of world-wide distribution affecting up to 3% of the world's population. Its genetic diversity, with multiple subtypes, and existence in the form of quasispecies in individual hosts, is, in part, responsible for high rates of chronic infection. Individuals with HCV infection will undoubtedly present to rheumatologists and other health care professionals with rheumatic and other immunological disorders related to what was usually a remote and asymptomatic acute infection. The goals of this review are: (1) to summarize clinical observations regarding rheumatological and immunological diseases linked with HCV infection; (2) to provide relevant information on the molecular biology of HCV; (3) to discuss the state of the art regarding the use of diagnostic studies; (4) to consider the differential diagnosis of liver disease and rheumatic disorders; and (5) to provide a practical guide to the history, physical examination, laboratory work-up, disease monitoring, and therapy of HCV patients with rheumatic disorders.
Collapse
Affiliation(s)
- M R Lövy
- University of Washington, 1310 S Union, Suite A, Tacoma, WA 98405, USA
| | | |
Collapse
|
39
|
Alric L, Partensky J, Reynaud D, Rauzy O, Duffaut M. [Association between polymyositis and hepatitis C infection. Treatment-related difficulties]. Rev Med Interne 2000; 21:542-6. [PMID: 10909154 DOI: 10.1016/s0248-8663(00)89230-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Chronic hepatitis C virus infection is often associated with various auto-immune disorders. We report four cases of an association between polymyositis and hepatitis C virus infection. The course and the difficulties of therapy are discussed. EXEGESIS Among 510 consecutive patients infected by viral hepatitis C, we report four cases of polymyositis. Corticosteroids increased serum alanine aminotransferase levels in two cases, leading to severe liver injury in one patient. Worsening of polymyositis under interferon-alpha therapy was observed in one case. Clinical and biological stability were reported in another case. Aggravation of polymyositis with severe muscle weakness and dyspnea occurred in two patients after disruption of interferon-alpha treatment. Intravenous gamma globulins subsequently improved their condition, without biological worsening of viral hepatitis. CONCLUSION These observations suggest an association between hepatitis C virus infection and polymyositis. Because corticosteroids can induce adverse effects in the liver, intravenous gamma globulins could be used for the treatment of this particular form of polymyositis.
Collapse
Affiliation(s)
- L Alric
- Service de médecine interne, pavillon Dieulafoy, hôpital Purpan, CHU, Toulouse, France
| | | | | | | | | |
Collapse
|
40
|
Abstract
Hepatitis C virus (HCV) currently infects an estimated 2-3 million people in the United States and 175 million people globally. Over 80% of infected patients go on to develop chronic disease. Most patients remain asymptomatic despite silent, insidious progression of the disease. The sequelae of HCV-induced chronic liver disease accounts for 8,000-10,000 deaths annually in the United States and is currently the leading indication for liver transplantation. The cost of this epidemic to the United States was estimated in 1991 at $600 million in terms of medical expenses (excluding costs related to liver transplantation) and work lost. Over the last decade, since the viral genome of HCV was first sequenced in 1989, there has been a great increase in understanding of this infection. This review summarizes current knowledge about the hepatitis C epidemic with particular reference to epidemiology of infection, viral characteristics, risk factors for disease, diagnostic testing, clinical manifestations, and current, as well as potential, therapeutic options.
Collapse
Affiliation(s)
- S A Sarbah
- Metrohealth Medical Center, Cleveland, Ohio, USA
| | | |
Collapse
|
41
|
Abstract
Mixed cryoglobulinemia (MC) is a systemic vasculitis of small to medium-sized vessels due to the vascular deposition of circulating immune-complexes (CIC) and complement. A leukocytoclastic vasculitis is the histologic hallmark of cutaneous manifestations of the disease, while a clonal B lymphocyte expansion in blood, bone marrow, liver, and spleen represents the underlying pathologic alteration responsible for the production of cryo-CIC and non-cryo CIC with rheumatoid factor activity. A causative role of hepatitis C virus (HCV) infection has been demonstrated in the large majority of MC patients. Hepatitis C virus is both a hepatotropic and a lymphotropic virus; due to this latter biological peculiarity, HCV may trigger a constellation of autoimmune-lymphoproliferative disorders. Besides MC, other important HCV-related diseases are porphyria cutanea tarda, autoimmune hepatitis, membranoproliferative glomerulonephritis, and B cell neoplasias. Hepatitis C virus-related MC represents a link between autoimmune and lymphoproliferative disorders; moreover, MC is an important model to study the complex relation between infections and immune system alterations in humans. During the last years many other autoimmune manifestations have been correlated with HCV infection; namely, sicca syndrome, chronic polyarthritis, polydermatomyositis, fibromyalgia, autoimmune thyroiditis, lung fibrosis, and diabetes mellitus. It is often difficult to verify whether the above associations are coincidental or a pathogenetic link actually exists. At least for particular patients' subsets and in some geographic areas, a causative role of HCV seems to be likely. The geographically heterogeneous distribution of HCV-related autoimmune diseases suggests the contribution of important environmental and genetic factors in the pathogenesis of such conditions. In clinical practice, patients with recent-onset, atypical rheumatic and autoimmune disorders should be carefully investigated for possible HCV infection; this is particularly advisable for correct diagnosis and adequate therapeutic strategy.
Collapse
Affiliation(s)
- C Ferri
- Dipartimento Medicina Interna, Rheumatology Unit, University of Pisa, Italy.
| | | |
Collapse
|
42
|
Del Rosso A, Generini S, Pignone A, Matucci-Cerinic M. Vasculitides secondary to systemic diseases. Clin Dermatol 1999; 17:533-47. [PMID: 10590846 DOI: 10.1016/s0738-081x(99)00060-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- A Del Rosso
- Department of Medicine, University of Florence, Italy
| | | | | | | |
Collapse
|
43
|
Affiliation(s)
- A L Zignego
- Department of Internal Medicine, University of Florence, Italy.
| | | |
Collapse
|
44
|
Ferri C, La Civita L, Longombardo G, Zignego AL, Pasero G. Mixed cryoglobulinaemia: a cross-road between autoimmune and lymphoproliferative disorders. Lupus 1998; 7:275-9. [PMID: 9643318 DOI: 10.1191/096120398678920091] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Mixed cryoglobulinaemia (MC) is a systemic vasculitis, secondary to the deposition in small and medium-sized blood vessels of circulating immune complexes, mainly the cryoglobulins, and complement. MC is characterised by a typical clinical triad (purpura, weakness, arthralgias) and by one or more organ involvement: chronic hepatitis, glomerulonephritis, peripheral neuropathy, skin ulcers and diffuse vasculitis. In a limited number of MC patients, a malignancy, that is B-cell non-Hodgkin's lymphoma or hepatocellular carcinoma, may also develop. Hepatitis C virus (HCV) infection has been found in the majority of patients with MC; the frequency of HCV markers (91%) was significantly higher than other rheumatic diseases (6.4%), namely systemic lupus, Sjögren's syndrome, rheumatoid arthritis and systemic sclerosis, or healthy controls (1.2%). The HCV infection of lymphoid tissues may represent the remote event leading to B-lymphocyte proliferation responsible for autoantibodies and immune-complex production. In a similar way, HCV infection may also be involved in the pathogenesis of other autoimmune (glomerulonephritis, thyroiditis, lung fibrosis, autoimmune hepatitis, porphyria cutanea tarda) and lymphoproliferative disorders (monoclonal gammopathies, B-cell lymphomas). MC shares numerous clinico-serological and pathological features with the above disorders. HCV seems to be their common etiological agent; however, a variable combination of unknown co-factors (infectious, genetic, environmental) should be determinant for the appearance of different clinical patterns.
Collapse
Affiliation(s)
- C Ferri
- Rheumatology Unit, Istituto Patologia Medica I, University of Pisa, Italy
| | | | | | | | | |
Collapse
|
45
|
Abstract
Hepatitis C virus (HCV) infection has been associated with multiple autoimmune manifestations. The immune response to HCV infection encompasses the development of autoantibodies, immune complex formation and deposition, and cryoglobulinemia complicated by vasculitis, glomerulonephritis, or neuropathy. HCV infection has been associated with antiphospholipid antibody syndrome, RA, SLE, PM/DM, and thyroid disease. HCV-infected patients also have a high incidence of sicca symptoms with sialoadenitis, and reports of low-grade lymphoproliferative malignancies have emerged. Optimal treatment for HCV-related autoimmune disease remains to be determined, but patients seem to respond to immunosuppression with classic agents or interferon.
Collapse
Affiliation(s)
- R W McMurray
- Department of Medicine, University of Mississippi Medical Center, Jackson, USA
| |
Collapse
|