Italian version of the Occupational Depression Inventory: Validity, reliability, and associations with health, economic, and work-life characteristics

BACKGROUND

The Occupational Depression Inventory (ODI) reflects a new approach to job-related distress centered on work-attributed depressive symptoms. The instrument was developed with reference to the characterization of major depression found in the Diagnostic and statistical manual of mental disorders, fifth edition. The ODI has been validated in English, French, and Spanish. This study (a) investigated the psychometric and structural properties of the ODI's Italian version and (b) inquired into the nomological network of occupational depression.

METHODS

A convenience sample of 963 employed individuals was recruited in Italy (69.9% female; mean age = 40.433). We notably relied on exploratory structural equation modeling bifactor analysis, common-practice confirmatory factor analysis, and Mokken scale analysis to examine our dataset.

RESULTS

Our analyses indicated that the Italian version of the ODI meets the requirements for essential unidimensionality, thus justifying the use of the instrument's total score. The ODI's reliability was excellent. Measurement invariance held across sexes, age groups, and occupations. Occupational depression was negatively associated with general wellbeing and positively associated with a 12-month history of depressive disorder, current antidepressant intake, 12-month sick leave, 6-month physical assault at work, 6-month verbal abuse at work, lack of money for leisure activities, and financial strain in the household.

CONCLUSIONS

The ODI's Italian version exhibits robust psychometric and structural properties, suggesting that the instrument can be fruitfully used for addressing job-related distress in Italian-speaking populations. Furthermore, the present study relates occupational depression to important health, economic, and work-life characteristics, including past depressive episodes, antidepressant medication, sickness-related absenteeism, workplace violence, and economic stress.

Safety of treatment options for spondyloarthritis: a narrative review

INTRODUCTION

Spondyloarthritis (SpA) are chronic inflammatory diseases with overlapping pathogenic mechanisms and clinical features. Treatment armamentarium against SpA includes non-steroidal anti-inflammatory drugs, glucocorticoids, conventional disease-modifying antirheumatic drugs (DMARDs, including sulfasalazine, methotrexate, leflunomide, cyclosporine), targeted synthetic DMARDs (apremilast) and biological DMARDs (TNF inhibitors, anti-IL 12/23 and anti-IL-17 agents).

AREAS COVERED

A narrative review of published literature on safety profile of available SpA treatment options was performed. Readers will be provided with a comprehensive overview on frequent and rare adverse events associated with each drug listed in current SpA treatment recommendations.

EXPERT OPINION

The overall safety profile of such molecules is good and serious adverse events are rare but need to be promptly recognized and treated. However, the monitoring of adverse events is a major challenge for clinicians because it is not adequately addressed by current treatment recommendations. A tailored treatment is crucial and rheumatologists must accurately select patients in order to identify those more susceptible to develop adverse events.

Erratum to: 36th International Symposium on Intensive Care and Emergency Medicine: Brussels, Belgium. 15-18 March 2016

[This corrects the article DOI: 10.1186/s13054-016-1208-6.].

Rheumatic manifestations of hepatitis C virus chronic infection: Indications for a correct diagnosis

Hepatitis C virus (HCV) is a hepato- and lymphotropic agent that is able to induce several autoimmune rheumatic disorders: vasculitis, sicca syndrome, arthralgias/arthritis and fibromyalgia. The severity of clinical manifestations is variable and sometimes life-threatening. HCV infection can mimic many primitive rheumatic diseases, therefore, it is mandatory to distinguish HCV-related manifestations from primitive ones because the prognosis and therapeutic strategies can be fairly dissimilar. The new direct-acting antivirals drugs can help to avoid the well-known risks of worsening or new onset of autoimmune diseases during the traditional interferon-based therapies.

Relationship of Psoriatic Arthritis to Other Spondyloarthritides

In the early 1970s, Moll and co-workers formulated the unified concept of spondyloarthritides, a group of conditions sharing similar clinical features. Subsequently, criteria for their classification have been proposed by Amor and coworkers, the European Spondylarthropathy Study Group, and the Assessment in SpondyloArthritis international Society. Opinion, however, is divided between those who believe that the different entities of the complex represent the variable expression of the same disease ("lumpers") and those who think that these should be considered separately but under the same umbrella ("splitters"). Several sets of criteria have been proposed for psoriatic arthritis (PsA), the most recent being the ClASsification for Psoriatic Arthritis (CASPAR) criteria. According to some authors, there are persuasive arguments to support the view of PsA as a distinct entity.

An update on the management of hepatitis C virus-related arthritis

INTRODUCTION

Hepatitis C virus (HCV)-related arthritis is an uncommon disease belonging to the autoimmune disorders due to the chronic stimulus exerted by the virus on the immune system. It shows two clinical subsets: a symmetrical polyarthritis resembling rheumatoid arthritis but less aggressive and an intermittent mono-oligoarthritis involving the lower limbs.

AREAS COVERED

We extensively review the current literature using the largest electronic databases (MEDLINE, EMBASE and COCHRANE) with regard to HCV-related arthritis (HCVrA) and studies focusing on the co-existence of HCV and other kinds of arthritides.

EXPERT OPINION

The therapeutic approach to HCVrA remains largely empirical, because few studies have been published on this topic. Mainstream treatment based on the administration of hydroxychloroquine and low doses of corticosteroid is still largely preferred. Cyclosporine represents a useful alternative due to its antiviral properties. Anti-TNF agents are safe, but their hypothetic use appears excessive for a mild disorder such as HCVrA. IFN-α (and more recently pegylated IFN-α) when administered as a component of the combined (IFN-α + ribavirin) anti-HCV therapy can promote the appearance or the worsening of several autoimmune HCV-related disorders, including arthritis. New and forthcoming antiviral molecules will be used in the near future for a revolutionary IFN-free treatment.

High prevalence of Behçet's disease in southern Italy

OBJECTIVES

This paper aims to estimate the prevalence of Behçet's disease (BD) in the city of Potenza, the regional capital of Basilicata (or Lucania) Region, in southern Italy.

METHODS

Patients with BD living in Potenza for at least 12 months prior to diagnosis were identified through the following sources: general practitioners, community-based specialists, San Carlo Hospital specialists, the Basilicata centralised index and the Basilicata database for rare diseases. All identified patients were contacted by phone and were recalled to our outpatient clinic for re-evaluation. Patients were classified as having complete BD if they met the International Study Group (ISG) criteria for BD.

RESULTS

By surveying a population of 69.060 subjects, 13 patients with a diagnosis of BD were identified. All were white and Italian by descendent. Eleven out of these satisfied the ISG criteria and allowed us to obtain a prevalence rate of 15.9 per 100.000 (95%CI 8.9-28.5), which is the highest ever found value in Europe.

CONCLUSIONS

This cross-sectional population-based study suggests that BD is more frequent in the southern part than in the northern part of Italy and confirms that the prevalence of the disease increases in a north-to-south manner within the European continent.

Pharmacoeconomic issues in psoriatic arthritis

Therapies for psoriatic arthritis were inadequate until a short time ago. Nonsteroidal antiinflammatory drugs are helpful in relieving symptoms but do not prevent joint damage. Traditional disease-modifying antirheumatic drugs are used to control symptoms, but there is no evidence that they prevent or significantly slow the progression of structural damage in peripheral joints. The introduction of tumor necrosis factor-α (TNF-α) blocking agents has opened new horizons. These drugs lessen signs and symptoms of inflammation, enhance functional capacity and quality of life, and inhibit structural joint damage. On the other hand, TNF-α blockers are very costly and not easily available to all patients, whether they rely on a national health system or on private insurance. Pharmacoeconomic studies on these drugs so far have shown that they are cost-effective on both the musculoskeletal and skin manifestations of psoriatic disease, offering good value for money.

The radiological assessment of axial involvement in psoriatic arthritis

This article summarizes the state of radiological assessment of axial involvement in psoriatic arthritis (PsA). The definition and measurement of axial disease in PsA remain problematic and this situation in turn could affect the choice of approach to evaluate radiological findings of the spine. At present, the radiological assessment has been evaluated by using scoring systems borrowed from ankylosing spondylitis (AS). In particular, the Bath AS Radiology Index (BASRI) and the modified Stoke AS Spine Score (m-SASSS) have been validated for axial PsA. A recent study showed that BASRI and m-SASSS were valid instruments; however, neither score encompassed all radiological features of PsA. Therefore, a new index for assessing radiological axial involvement in PsA was developed--the PsA Spondylitis Radiology Index (PASRI). This new index encompassed a greater range of the spinal radiological features of PsA, providing a greater score range, and it correlated well with anthropometric and patient-reported outcomes. Recently, a study assessed the sensitivity to change of BASRI, m-SASSS, and PASRI, and showed that these 3 instruments provided a moderate sensitivity to change but high specificity to detect the true changes.

Can we reduce the dosage of biologics in spondyloarthritis?

TNF blockers have revolutionized the management of spondyloarthritis (SpA). To date, four anti-TNFα agents (etanercept, infliximab, adalimumab, golimumab) have been approved for the management of ankylosing spondylitis (AS) and psoriatic arthritis (PsA). The first objective in the management of AS and PsA with TNF inhibitors is to reduce disease activity to clinical remission or low disease activity. After remission has been achieved, this state should be maintained as long as possible. However, the financial burden associated with the cost of anti-TNF agents as well as concerns about their long-term safety suggest reducing the dosage of the drug or discontinuing the therapy in the hopes of drug-free remission. The aim of this review is to examine what has, till now, been published on this topic in axial SpA, which includes AS and non-radiographic axial SpA (nr-axSpA), peripheral SpA and PsA. Discontinuation of therapy in axial SpA is not possible in the majority of patients, while on the contrary, reducing the dosage often is. In some patients with peripheral SpA and PsA it is also possible to discontinue therapy and to achieve drug-free remission.

New insights in occult psoriatic arthritis

Since the 1970s, asymptomatic involvement of several musculoskeletal structures was described in patients with psoriatic arthritis (PsA). We recently designated this clinical condition as occult PsA. This concept addresses an "underground" inflammatory process that can eventually cause structural damage. The percentage of PsA cases occurring in an occult manner remains to be determined but it does not seem small. From a teaching perspective, we suggest differentiating occult PsA into 3 subsets: real occult PsA, characterized by a continuous asymptomatic course; temporary occult PsA, in which the clinical course remains asymptomatic for a period; and limited occult PsA, which occurs asymptomatically in some areas of the body but is clinically evident in others. Some serum biomarkers could identify patients to be studied with imaging techniques to discover real occult PsA. Since an asymptomatic course was also reported for other spondyloarthropathies, the concept of occult arthritis could be expanded to the whole field of such conditions.

Low frequency of axial involvement in southern Italian Caucasian children with HLA-B27 positive juvenile onset undifferentiated spondyloarthritis

OBJECTIVES

To establish how many children with HLA B27-positive juvenile undifferentiated spondyloarthritis (JuSpA) living in southern Italy develop axial disease after 5 years of disease.

METHODS

All children with B27-positive enthesitis-related arthritis (ERA) consecutively seen in a 7-year period were entered in a special register and were followed prospectively. Each patient was examined at 6-month intervals, even if asymptomatic. In patients with inflammatory spinal pain and/or buttock pain, MRI of the sacroiliac joints and spine was performed. Five years after inclusion, sacroiliac joint plain radiographs were obtained and read blindly after being mixed with those of control subjects.

RESULTS

Thirteen children, 9 boys and 4 girls, with B27-positive ERA and one girl with B27-positive isolated SpA dactylitis were seen in the study period. Their median age at disease onset and at our first examination were 10 (range 2-16) and 12 years (range 3-16), respectively. During follow-up, only one patient had axial symptoms, i.e. alternate buttock pain. MRI revealed moderate bone oedema at both sacroiliac joints. After five years of disease, no patient showed reduced spinal movement. No sign of sacroiliitis was seen in any patient and control on plain films. A new MRI of the sacroiliac joints of the patient who showed bone oedema in the first years of disease was normal.

CONCLUSIONS

This study confirms that the onset of axial involvement in Italian Caucasian HLA-B27 positive children with ERA is rare in the first five years of disease.

Autoantibodies in patients with chronic hepatitis C virus infection: pitfalls for the diagnosis of rheumatic diseases

Hepatitis C virus infection (HCV) is one of the best mimes in medicine. About 40-70% of patients suffering from this disorder develop at least one extra-hepatic disorder that can have a rheumatic nature (arthralgias, arthritis, vasculitis and sicca syndrome) and must be differentiated from the primitive rheumatic diseases. In addition, HCV infection can also alter the laboratory tests. Several alterations of first line laboratory tests can be usually found in both chronic HCV infection and chronic inflammatory rheumatic disorders. In the present review we analyze the interference of HCV in tests more specifically used in rheumatology: rheumatoid factor and other autoantibodies (ANA, anti-ENA, ANCA, anti-DNA, antiphospholipid, anti-CCP). In patients suffering from HCV infection, the diagnosis of connective tissue diseases (CTD) or rheumatoid arthritis (RA) should be made only when the detected symptoms or laboratory data are not inducible by HCV, otherwise only a diagnosis of "possible CTD" or "possible RA" should be considered.

Etanercept in spondyloarthopathies. Part II: safety and pharmacoeconomic issues

Etanercept (ETN) and other anti-TNF-α agents have revolutionised the management of spondyloarthropathies (SpA). With the increasingly widespread and prolonged use of these drugs an assessment of their long-term safety is extremely important. An additional concern regarding biological agents is their higher costs compared with conventional drugs. We examined safety data regarding ETN from clinical reports, clinical trials, review articles, databases and registries. In addition, evidence was reviewed about the cost effectiveness of ETN in the treatment of patients with SpA. Our review suggests that ETN is well tolerated as long-term, continuous treatment of SpA with a favourable risk-benefit ratio maintained from 4 to 5 years. Diversity in structure and mode of action could explain some differences in the safety profile of ETN with respect to the other anti-TNF agents. In particular, ETN is less immunogenic and is less likely to induce tuberculosis re-activation than the other TNF-α antagonists. Although ETN is considerably more expensive than conventional therapy, it reduces direct and indirect costs associated to SpA by improving disease activity and quality of life. Recent pharmacoeconomic studies have demonstrated its cost-effectiveness in the treatment of SpA.

Etanercept in spondyloarthropathies. Part I: current evidence of efficacy

Etanercept is a recombinant soluble tumour necrosis factor alpha receptor administered subcutaneously at the dose of 50 mg weekly (or 25 mg/twice weekly) for the treatment of the main chronic arthritides: rheumatoid arthritis and spondyloarthropathies. It shows high qualities in terms of efficacy and manageability. Favourable results were reported in all localisations of spondyloarthropathies: axial disease, peripheral arthritis, and enthesitis. In particular, several studies demonstrated its efficacy on the clinical and functional indicators of ankylosing spondylitis. Similar data were also reported for psoriatic arthritis in which, in addition, a significant reduction in the progression of erosive damages was widely described. Furthermore, although only a few studies are available, very interesting results have been obtained in patients suffering from undifferentiated spondyloarthropathies and severe enthesitis.

Efficacy of adalimumab in patients with Behçet's disease unsuccessfully treated with infliximab

OBJECTIVES

To evaluate the clinical response after switching from infliximab to adalimumab in patients with Behçet's disease (BD).

METHODS

In this ongoing, prospective, longitudinal and observational study, data were collected on efficacy and safety of every patient with BD beginning anti-TNF therapy in the last 8 years. The present analysis was restricted to patients who were switched to adalimumab after failing or not tolerating infliximab.

RESULTS

A total of 69 patients with BD have been treated with infliximab so far. Seventeen of these (25%) have been switched to adalimumab for lack or loss of efficacy or infusion reactions. In 10 out of these 17, the main manifestations requiring switching were the mucocutaneous lesions, in 4 retinal vasculitis and in 3 the neurological involvement. Of the 17 treated patients, 9 showed sustained remission of the disease and 3 a good response. No side effects were observed in any patient.

CONCLUSIONS

The results of our study suggest that patients with BD showing a scarce response or adverse events to infliximab may successfully be treated with adalimumab, regardless of the reason for switching.

Aortitis and periaortitis in ankylosing spondylitis

Aortic involvement is a potential life-threatening complication of ankylosing spondylitis, usually occurring late in the course of this frequent disease. Inflammatory lesions evolving to fibrosis are primarily localized in the aortic root causing regurgitation, but this process can extend into the left atrium (subaortic bump) involving the mitral valve and the heart conduction system. First, second and third degree atrioventricular blocks are the most common conduction alterations described and they can be temporary. Chronic periaortitis has been described in ankylosing spondylitis patients. This disease is characterized by inflammation evolving to fibrosis and it is localized in the periaortic and peri-iliac retroperitoneum. It causes compressive effects on ureters and venous, arterial and lymphatic vessels. Its treatment employs endoscopic and/or surgical procedures and administration of corticosteroids, even in association with immunosuppressive agents. Both aortitis (with conduction system alterations) and periaortitis should be kept in mind by the physicians because they can significantly influence the prognosis of ankylosing spondylitis patients and they can need a rapid treatment.

Emerging drugs for psoriatic arthritis

IMPORTANCE OF THE FIELD

The socioeconomic burden of psoriatic arthritis (PsA) is considerable and not different from that of rheumatoid arthritis. Current treatment options do not always allow reaching the therapeutic objectives consisting of the remission of symptoms and prevention of the appearance of damage in the early stage of PsA or the blocking of PsA progression in the established cases.

AREAS COVERED IN THIS REVIEW

After reviewing the current treatment choices, we examine the new drugs in clinical Phase II and III trials for PsA up to January 2010. Information was mainly obtained from the network of international clinical trial registries.

WHAT THE READER WILL GAIN

The current management of PsA includes NSAIDs, corticosteroids, disease-modifying antirheumatic drugs (DMARDs) and anti-TNF-alpha blocking agents. These last drugs are more effective than traditional DMARDs on symptoms/signs of inflammation, quality of life and function and can inhibit the progression of the structural joint damage. Recent advancement in the knowledge of the immunopathogenesis of PsA has permitted the development of novel drugs including new TNF-alpha blockers, IL-1, -6, -12, -23 and -17 inhibitors, co-stimulator modulation inhibitors, B-cell depleting agents, small molecules and receptor activator of NF-kappaB/receptor activator of NF-kappaB ligand inhibitors.

TAKE HOME MESSAGE

The currently available anti-TNF-alpha blocking agents have revolutionized the management of PsA. However, there is a need for more effective and safer drugs.

Juvenile onset psoriatic arthritis in a patient with X‐linked agammaglobulinemia (Bruton's disease)

We describe a 47-year-old male patient suffering from X-linked (or Bruton's) agammaglobulinemia with severe psoriatic arthritis (PsA), which started in childhood. PsA has been previously described in T-cell defective disorders, such as HIV infection, but our observation demonstrates that this rheumatic disease can also occur in subjects with B-lymphocyte cell functional impairment. Chronic inflammatory (bacterial?) involvement of the bowel could represent a pathogenetic connection between X-linked agammaglobulinemia and PsA.

Entheseal involvement

Enthesitis is a distinctive pathological feature of spondyloarthritis and may involve synovial joints, fibrocartilaginous joints, syndesmoses and extra-articular entheses. Extra-articular pain may often be present in rheumatoid arthritis patients. This review focuses on peripheral enthesitis which is a clinical hallmark of spondylarthritis, by comparing the same findings in rheumatoid arthritis.

Treatment strategies for early psoriatic arthritis

BACKGROUND

Until a few years ago, the early diagnosis of psoriatic arthritis (PsA) did not receive much attention, especially in view of the lack of drugs capable of altering the disease course. This changed with the introduction of the TNF-alpha-blocking agents, as a result of which the early diagnosis of PsA is now a topic of great interest.

OBJECTIVE

The aim of the study was to review the treatment for PsA in order to determine the optimal approach to managing early disease.

METHODS

The systematic review performed by members of GRAPPA (Group of Research and Assessment of Psoriasis and Psoriatic Arthritis) was integrated with data from more recent studies.

RESULTS/CONCLUSION

After making the diagnosis of PsA, the next step is to stage of the disease with the aim of establishing the prevalent manifestation (peripheral arthritis, peripheral enthesitis, axial involvement and dactylitis) and degree of severity (mild, moderate or severe) of the disease. Each patient should be treated according to the defined disease status following the suggested treatment algorithms.

Hepatitis C virus-related arthritis

Although asymptomatic joint involvement and arthralgias are frequent in patients with hepatitis C virus chronic infection (HCV), a true arthritis affects only up to 4% of the subjects. HCV-related arthritis (HCVrA) is usually distinguished in two clinical subsets: a more frequent symmetrical polyarthritis (SP), similar to rheumatoid arthritis but much less serious, and an intermittent mono-oligoarthritis (IMO) that involves medium and large sized joints, mainly the ankle. This latter subset is strictly related to the presence of HCV-induced mixed cryoglobulinemia and its cutaneous manifestations, in particular purpura. According to recent reports, anti-CCP antibodies are considered very useful in differentiating the SP subset from rheumatoid arthritis. The treatment of HCVrA is still largely empirical because few studies have analyzed this topic. However, COXIBs, NSAIDs, low doses of corticosteroids, hydroxychloroquine and less frequently methotrexate and penicillamine have been used with partial or complete control of symptoms. On the basis of recent studies, the administration of cyclosporine also seems to be sufficiently safe. The scarcely aggressive nature of HCVrA does not favour the use of anti-TNF agents. Specific anti-viral therapy (interferon-alpha+ribavirin) must be accurately evaluated because interferon-alpha can induce the development or the worsening of several autoimmune HCV-related disorders including arthritis.

Aortic involvement in ankylosing spondylitis

Patients with ankylosing spondylitis (AS) may develop cardiovascular manifestations ranging from asymptomatic forms to life threatening conditions. The most important cardiovascular manifestation of AS is aortitis, which frequently involves the aortic root and the ascending aorta leading to valvular insufficiency. The extension of the subaortic fibrotic process into the interventricular septum may cause conduction abnormalities that represent the second common cardiovascular manifestations occurring in AS patients. More rarely, an involvement of coronary arteries and of thoracic and abdominal aorta could be present. Rheumatologists managing AS patients should carefully consider, both in late and in early phases of the disease, the occurrence of an aortic involvement in order to promptly administer adequate treatment.

HCV infection: pathogenesis, clinical manifestations and therapy

Chronic hepatitis C virus (HCV) infection is a worldwide public health problem with a global prevalence of 2-3%. It is believed that about 170 million people are currently infected (about 3% of the world's population), and a further 3-4 million are infected each year. HCV is the main reason for liver transplantation in the developed world, and the main cause of liver-related morbidity and mortality in a number of countries, including Italy. It is not only a frequent cause of chronic liver diseases such as hepatitis, cirrhosis and hepatocellular carcinoma, but is also involved in the pathogenesis of various autoimmune and rheumatic disorders (arthritis, vasculitis, sicca syndrome, porphyria cutanea tarda, lichen planus, nephropathies, thyroid diseases, and lung fibrosis), as well as in the development of B-cell lymphoproliferative diseases. Furthermore, patients suffering from C hepatitis tend to produce rheumatoid factor, cryoglobulins and a large series of autoantibodies (ANA, anti-SSA/SSB, SAM, ATG, aCL). The use of glucocorticoids or immuno-suppressant agents in HCV infected individuals, which are needed to treat autoimmune and rheumatic disorders, leads to a risk of worsening the clinical outcome of HCV. Under these conditions, the viral infection often needs to be treated with antiviral agents, mainly pegylated interferon combined with ribavirin. However, cyclosporine A seems to be safe and effective in patients with autoimmune disease (AD) and concomitant chronic HCV infection as is documented by the reduction in viremia and transaminases, particularly in patients with high baseline levels. Finally, HCV is the main trigger of mixed cryoglobulinemia. An attempt at viral eradication is therefore indicated in most patients, and is particularly effective in the case of mild or moderate manifestations. In severe cases, rituximab is an apparently safe and effective alternative to conventional immunosuppression and, specifically, it controls B-cell proliferation.

Acute myositis in a patient with systemic sclerosis after the administration of darbepoetin alpha

We first describe the onset of acute myositis in a patient suffering from systemic sclerosis after the administration of darbepoetin alpha for renal failure-related anemia. Therapeutic implications and risks are discussed.

Hepatitis C virus infection in Italian patients with fibromyalgia

We evaluated the prevalence of hepatitis C virus (HCV) infection in Italian patients suffering from fibromyalgia (FM), in comparison with patients affected by non-HCV related rheumatic degenerative disorders. Consecutive patients with FM and a statistically comparable group of patients suffering from peripheral osteoarthritis (OA) or sciatica due to L4-L5 or L5-S1 herniated disc were tested for HCV infection with a third-generation microparticle enzyme immunoassay (MEIA). In the positive cases, a third-generation recombinant immunoblot assay (RIBA) confirmatory test and serum HCV-RNA test were performed. Fisher's exact test was performed to compare the prevalence of HCV infection (MEIA- and RIBA-positive results) obtained in the two enrolled groups. Enrolled were 152 subjects suffering from FM and 152 patients with peripheral OA or sciatica. Anti-HCV antibodies were found in 7/152 (4.6%) patients suffering from FM and in 5/152 (3.3%) of control subjects. No statistically significant differences in HCV prevalence were detected between cases and controls. Our present report does not confirm previous data indicating an increased prevalence of HCV in FM patients and does not seem to support a significant pathogenetic role of HCV under this condition.

Diffuse idiopathic skeletal hyperostosis may give the typical postural abnormalities of advanced ankylosing spondylitis

OBJECTIVES

To describe a case-series of patients who presented with the typical postural abnormalities of long-standing advanced ankylosing spondylitis (AS) but were instead found to suffer from diffuse idiopathic skeletal hyperostosis (DISH).

METHODS

We enrolled consecutive patients who showed postural abnormalities, which at first suggested to us the diagnosis of long-standing advanced AS, although the diagnostic process led us to the correct diagnosis of DISH. Each patient had a complete physical examination and radiographs of the spine and pelvis, and was investigated for HLA-B27 locus typing.

RESULTS

From 15 June 1998 to 15 June 2006, 15 patients with DISH were seen who presented with the typical postural abnormalities of long-standing advanced AS. All patients were males with a median age of 69 yrs (range 51-91). All lacked HLA-B27 and denied personal or family history of spondyloarthritis. All measurements assessing cervical, thoracic and lumbar spinal movement were abnormal.

CONCLUSIONS

Patients suffering from DISH can occasionally have severe limitations of spinal mobility, along with postural abnormalities that resemble long-standing advanced AS. Thus, the differential diagnosis between DISH and advanced AS is not limited to the radiological findings and can also extend to the clinical findings in the two diseases, as is highlighted by our report.

Pharmacological management of SAPHO syndrome

The SAPHO (synovitis, acne, pustulosis, hyperostosis and osteitis) syndrome (SaS) includes different skeletal manifestations such as recurrent multifocal osteomyelitis, osteitis and arthritis, which are frequently associated with different forms of skin pustulosis (palmoplantar pustulosis, pustular psoriasis and severe acne). This syndrome is strictly related to the spondyloarthopathies (particularly to psoriatic arthritis) and many SaS cases fulfil the classification criteria for the spondyloarthopathies. Because SaS is an uncommon disease, current knowledge regarding its therapy is based on limited experiences gained by treating mainly small groups of patients. As a consequence, its treatment is still empiric. Several drugs (including NSAIDs, corticosteroids, sulfasalazine, methotrexate, ciclosporin, leflunomide, calcitonin and so on) have been administered and obtained conflicting results. The use of antibiotics, due to the isolation of Propionibacterium acnes from the bone biopsies of several subjects with SaS, has not represented a turning point in therapy, although some patients are responsive to this treatment. Initial reports concerning the administration of bisphosphonates (pamidronate and zoledronic acid) and of an anti-TNF-alpha agent (infliximab) are very promising for the future. In any case, larger, multi-centre, controlled, double-blind studies are required to emerge from the present pioneering phase.