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result(s) for
"Bongartz, Tim"
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Patient-provider discordance between global assessments of disease activity in rheumatoid arthritis: a comprehensive clinical evaluation
by
Mason, Thomas G.
,
Michet, Clement J.
,
Wright, Kerry
in
Adolescent depression
,
Adult
,
Analysis
2017
Background
Discordance between patients with rheumatoid arthritis (RA) and their rheumatology health care providers is a common and important problem. The objective of this study was to perform a comprehensive clinical evaluation of patient-provider discordance in RA.
Methods
A cross-sectional observational study was conducted of consecutive RA patients in a regional practice with an absolute difference of ≥ 25 points between patient and provider global assessments (possible points, 0–100). Data were collected for disease activity measures, clinical characteristics, comorbidities, and medications. In a prospective substudy, participants completed patient-reported outcome measures and underwent ultrasonographic assessment of synovial inflammation. Differences between the discordant and concordant groups were tested using χ
2
and rank sum tests. Multivariable logistic regression was used to develop a clinical model of discordance.
Results
Patient-provider discordance affected 114 (32.5%) of 350 consecutive patients. Of the total population, 103 patients (29.5%) rated disease activity higher than their providers (i.e., ‘positive’ discordance); only 11 (3.1%) rated disease activity lower than their providers and were excluded from further analysis. Positive discordance correlated with negative rheumatoid factor and anticyclic citrullinated peptide antibodies, lack of joint erosions, presence of comorbid fibromyalgia or depression, and use of opioids, antidepressants, or anxiolytics, or fibromyalgia medications. In the prospective study, the group with positive discordance was distinguished by higher pain intensity, neuropathic type pain, chronic widespread pain and associated polysymptomatic distress, and limited functional health status. Depression was found to be an important mediator of positive discordance in low disease activity whereas the widespread pain index was an important mediator of positive discordance in moderate-to-high disease activity states. Ultrasonography scores did not reveal significant differences in synovial inflammation between discordant and concordant groups.
Conclusions
The findings provide a deeper understanding of patient-provider discordance than previously known. New insights from this study include the evidence that positive discordance is not associated with unrecognized joint inflammation by ultrasonography and that depression and fibromyalgia appear to play distinct roles in determining positive discordance. Further work is necessary to develop a comprehensive framework for patient-centered evaluation and management of RA and associated comorbidities in patients in the scenario of patient-provider discordance.
Journal Article
Tocilizumab for rheumatoid and juvenile idiopathic arthritis
by
Bongartz, Tim
in
Antibodies, Monoclonal - pharmacology
,
Antibodies, Monoclonal - therapeutic use
,
Antibodies, Monoclonal, Humanized
2008
Conventional disease-modifying antirheumatic drugs have limited effectiveness in patients with rheumatoid arthritis who experience incomplete responses to methotrexate.11 But, so far, we do not know how tocilizumab will compare with other effective and approved therapies, such as treatment targeting tumour necrosis factor (TNF)1-3 or abatacept.6 Although fewer drugs are approved for the treatment of JIA than for rheumatoid arthritis, many patients with this disease can be successfully treated with currently available drugs, including TNF inhibitors.7,12 Yokota and colleagues focused on patients with systemic type juvenile arthritis who did not respond to conventional disease-modifying antirheumatic drugs. On the basis of available information, thought and caution would influence my decision to initiate therapy in patients with rheumatoid arthritis or JIA with a new drug that significantly increases predictors of cardiovascular morbidity and mortality-especially if agents with similar efficacy are available that influence these predictors to a lesser extent.20 In other words, even if we are able to positively influence a yet unknown risk factor for cardiovascular events in rheumatoid arthritis through yet unknown mechanisms, I will need a good argument to select a drug which does this at the expense of significantly increasing a different, much better defined, risk factor for such a major adverse event.
Journal Article
Histoplasmosis infection in patients with rheumatoid arthritis, 1998-2009
by
Olson, Timothy C
,
Matteson, Eric L
,
Crowson, Cynthia S
in
Adrenal Cortex Hormones - therapeutic use
,
Adult
,
Aged
2011
Background
Patients with rheumatic diseases including rheumatoid arthritis (RA) are at increased risk for infections related to both the disease and its treatments. These include uncommonly reported infections due to histoplasmosis.
Methods
Medical record review of all patients with a diagnosis of RA who developed new histoplasmosis infection in an endemic region between Jan 1, 1998 and Jan 30, 2009 and who were seen at Mayo Clinic in Rochester, Minnesota was performed.
Results
Histoplasmosis was diagnosed in 26 patients. Most patients were on combination therapies; 15 were on anti-tumor necrosis factor (anti-TNF) agents, 15 on corticosteroids and 16 on methotrexate. Most received more than 6 months of itraconazole and/or amphotericin treatment. Two patients died of causes unrelated to histoplasmosis. Anti-TNF treatment was restarted in 4/15 patients, with recurrence of histoplasmosis in one.
Conclusions
In this largest single center series of patients with RA and histoplasmosis in the era of immunomodulatory therapy, we found that most patients had longstanding disease and were on multiple immunomodulatory agents. Most cases were pulmonary; typical signs and symptoms of disease were frequently lacking.
Journal Article
Dual-energy CT for the diagnosis of gout: an accuracy and diagnostic yield study
by
Murthy, Naveen S
,
Mason, Thomas G
,
Glazebrook, Katrina N
in
Absorptiometry, Photon
,
Accuracy
,
Adult
2015
Objectives To assess the accuracy of dual-energy CT (DECT) for diagnosing gout, and to explore whether it can have any impact on clinical decision making beyond the established diagnostic approach using polarising microscopy of synovial fluid (diagnostic yield). Methods Diagnostic single-centre study of 40 patients with active gout, and 41 individuals with other types of joint disease. Sensitivity and specificity of DECT for diagnosing gout was calculated against a combined reference standard (polarising and electron microscopy of synovial fluid). To explore the diagnostic yield of DECT scanning, a third cohort was assembled consisting of patients with inflammatory arthritis and risk factors for gout who had negative synovial fluid polarising microscopy results. Among these patients, the proportion of subjects with DECT findings indicating a diagnosis of gout was assessed. Results The sensitivity and specificity of DECT for diagnosing gout was 0.90 (95% CI 0.76 to 0.97) and 0.83 (95% CI 0.68 to 0.93), respectively. All false negative patients were observed among patients with acute, recent-onset gout. All false positive patients had advanced knee osteoarthritis. DECT in the diagnostic yield cohort revealed evidence of uric acid deposition in 14 out of 30 patients (46.7%). Conclusions DECT provides good diagnostic accuracy for detection of monosodium urate (MSU) deposits in patients with gout. However, sensitivity is lower in patients with recent-onset disease. DECT has a significant impact on clinical decision making when gout is suspected, but polarising microscopy of synovial fluid fails to demonstrate the presence of MSU crystals.
Journal Article
Zoster vaccine and biologic agents: time to question a paradigm?
2012
Vaccination for the prevention of herpes zoster with the attenuated live vaccine is currently not recommended for patients with rheumatic diseases while they are receiving biologic agents, but new evidence calls the validity of this guidance into question. Is it time to rethink the use of the herpes zoster vaccine in these patients?
Journal Article
Association of Crohn’s disease and latent celiac disease: a case report and review of the literature
by
Schedel, Jörg
,
Woenckhaus, Matthias
,
Rockmann, Felix
in
Biological and medical sciences
,
Celiac disease
,
Celiac Disease - complications
2005
Crohn's disease is a chronic inflammatory disease of the intestine potentially affecting all parts of the intestine with predilection sites in the terminal ileum and proximal colon. Its prevalence in Western Europe is 20-40/100,000 with equal affection of both sexes and familiar accumulation. Histopathologically, it is characterized by a discontinuous, segmental manifestation and implication of all intestinal layers. Celiac disease, on the other hand, is defined by histologically proven villous atrophy associated with hyperplasia of crypts, lymphocytic infiltration and clinical improvement after a gluten-free diet.
We report the case of a 52-year-old man presenting with long-term diarrhea and loss of weight associated with Crohn's disease. After interventional therapy for an unstable coronary artery syndrome and medical therapy for hyperthyroidism, the diarrhea stopped only after maintaining a gluten-free diet. A latent form of celiac disease (clinical symptoms, improvement after gluten-free diet, detection of anti-gliadin IgA antibodies, negative histology) was diagnosed.
To our knowledge, this is the first report on the association of Crohn's disease and the latent form of celiac disease in the same patient. Whereas in most cases, Crohn's disease develops secondary to a pre-existing celiac disease, in our patient, latent celiac disease was diagnosed years after the onset of and therapy for Crohn's disease.
Journal Article
The risk of herpes zoster: another cost of anti-TNF therapy?
by
Bongartz, Tim
,
Orenstein, Robert
in
Antirheumatic agents
,
Complications and side effects
,
Drug therapy
2009
Several studies have shown that tumor necrosis factor (TNF) inhibitors are associated with an overall increased risk of serious infections compared with standard immunosuppressive regimens in patients with rheumatoid arthritis (RA). A study by Strangfeld
et al
. adds specificity by showing a moderately increased risk of herpes zoster in patients receiving anti-TNF antibody treatment, and raises the question of whether live zoster vaccines should be utilized in this patient group.
Journal Article
Genome-wide association study of response to methotrexate in early rheumatoid arthritis patients
by
Orchard, Peter
,
Cope, Andrew P
,
Aslibekyan, Stella
in
C-reactive protein
,
Genome-wide association studies
,
Genomes
2018
Methotrexate (MTX) monotherapy is a common first treatment for rheumatoid arthritis (RA), but many patients do not respond adequately. In order to identify genetic predictors of response, we have combined data from two consortia to carry out a genome-wide study of response to MTX in 1424 early RA patients of European ancestry. Clinical endpoints were change from baseline to 6 months after starting treatment in swollen 28-joint count, tender 28-joint count, C-reactive protein and the overall 3-component disease activity score (DAS28). No single nucleotide polymorphism (SNP) reached genome-wide statistical significance for any outcome measure. The strongest evidence for association was with rs168201 in NRG3 (p = 10−7 for change in DAS28). Some support was also seen for association with ZMIZ1, previously highlighted in a study of response to MTX in juvenile idiopathic arthritis. Follow-up in two smaller cohorts of 429 and 177 RA patients did not support these findings, although these cohorts were more heterogeneous.
Journal Article