Myelodysplasia and malignancy-associated vasculitis.

While the link between malignancy and vasculitis has been known for some time, the association of vasculitis and myelodysplastic syndrome (MDS) has only recently been reported. This article reviews the most current and landmark publications regarding MDS, as well as malignancy-associated vasculitis. We include theories of paraneoplastic associations, immune pathogenesis including an associated cytokine transcriptional factor (interferon regulatory factor-1 [IFN-1]), and the relationship to treatment. Key clinical features that suggest underlying malignancy in patients with vasculitis are highlighted. Although the association between vasculitis and malignancy is rare, leukocytoclastic vasculitis is the most common vasculitis associated with MDS, hematologic malignancies as well as solid tumors. We review several articles that demonstrate a paraneoplastic association between vasculitis and various malignancies, but overall, the connection is still unclear and not well defined. Certain features that suggest a true paraneoplastic association are outlined. Further studies are needed to advance our understanding of this complex topic.

Virtual rheumatology: using simulators and a formal workshop to teach medical students, internal medicine residents, and rheumatology subspecialty residents arthrocentesis.

BACKGROUND: Arthrocentesis is an important skill for medical practitioners at all levels of training. Previous studies have indicated a low comfort level and performance of arthrocentesis among primary care physicians that could be improved with hands-on training. OBJECTIVES: The objective of this study was to improve comfort with knee and shoulder arthrocentesis at all levels of medical training, including medical students, internal medicine residents, and rheumatology subspecialty residents, and in arthrocentesis of the elbow, wrist, and ankle for advanced subspecialty residents in rheumatology through the use of a formal workshop using simulators. METHODS: Fourth-year medical students and internal medicine residents were recruited from the University of South Florida. The rheumatology advanced subspecialty residents were participants from University of South Florida and from the American College of Rheumatology national meetings in 2008 and 2009. A 1-hour PowerPoint lecture followed by a hands-on practice session using Sawbones models (shoulder and knee for all groups, and elbow, wrist, and ankle additionally for the advanced subspecialty residents). A preworkshop self-assessment survey allowed the participant to rate his/her comfort level with arthrocentesis on a scale of 1 to 5. A survey with identical questions was completed immediately after the workshop. A follow-up survey was distributed by e-mail 3 to 6 months after the workshop. RESULTS: One hundred forty-one medical students, 75 internal medicine residents, and 39 rheumatology subspecialty residents participated from January 2008 until January 2010. Mean comfort level in knee and shoulder arthrocentesis improved from preworkshop comfort level for all joints and among all participants. In addition, rheumatology subspecialty resident mean comfort level improved for ankle from 2.37 to 3.65, elbow from 2.56 to 3.80, and wrist from 2.31 to 3.77 (P < 0.0001). CONCLUSIONS: Our study involved a very large number of participants encompassing different levels of training and is the largest number of advanced subspecialty rheumatology residents studied with regard to joint injection training. We have confirmed that a formal joint injection workshop using simulators is an effective method of improving comfort level in arthrocentesis among participants from all levels of medical training. Future studies should evaluate the effect of such training on actual clinical use and competence.

The recognition and treatment of vertebral fractures in males with chronic obstructive pulmonary disease.

OBJECTIVE: Males with chronic obstructive pulmonary disease (COPD) are at increased risk for developing osteoporosis (OP) with subsequent vertebral compression fractures. Such fractures with resultant increased thoracic kyphotic angle (TKA) may interfere with these patients' already compromised pulmonary function. A retrospective cross-sectional study was performed to evaluate the recognition and treatment of vertebral fractures in male patients with COPD. METHODS: The study population included male patients with COPD aged 55 years and older who had a lateral chest X-ray (index film) performed between January 1, 2001 and July 5, 2005. Vertebral fractures and the TKA were determined independently by two different radiologists. One radiologist (reviewer #1) used direct measurement including quantitative morphometric analysis to determine fractures and the TKA, whereas the second radiologist (reviewer #2) used visual inspection only. Inter-reader agreement for vertebral fractures and TKA was assessed. The computerized charts were reviewed to determine the initial recognition of vertebral fractures and the subsequent therapy. Logistic regression was employed to determine significant risk factors for vertebral fractures in this male population. RESULTS: Three hundred and fifty male study subjects and their index lateral chest X-rays were reviewed. Ages ranged from 52 to 90 and 9/350 (2.6%) of the study subjects had vertebral fractures identified on the initial radiology report. None of these nine patients were subsequently treated with anti-osteoporotic agents other than calcium and vitamin D, and two of them had a follow-up central bone density. Reviewer #1 measured 361 fractures in 181 subjects and determined the mean TKA to be 31.43 (+/-8.62) degrees. Reviewer #2 identified 27 fractures in 19 subjects and with an estimated mean TKA of 24.84 (+/-8.53) degrees. There was little inter-observer agreement with vertebral fractures (kappa=0.07), but there was a strong positive correlation with the TKA (r=0.79). There was a weak to moderate correlation with the TKA and the presence of vertebral fractures (r=0.26). Significant risk factors for vertebral fractures included smoking status (odds ratio 1.84 [1.08-3.15]) and age (odds ratio 1.06 [1.03-1.09] for each year increase in age). CONCLUSION: A large number of vertebral fractures in males with COPD goes undiagnosed. In those patients with diagnosed vertebral fractures, follow-up therapy is under-utilized. When analyzing lateral chest X-rays for vertebral fractures, visual inspection alone without direct measurement may not be an adequate technique for identifying fractures.

An MRI assessment of chronic synovial-based inflammation in gout and its correlation with serum urate levels.

It is unclear when the synovial-based inflammatory process of gout begins. The aim of this study was to determine the percentage of patients with inter-critical gout who have chronic synovial-based inflammation as evidenced by synovial pannus on a contrast-enhanced magnetic resonance imaging (MRI) of their most involved joint and determine if the presence and/or severity correlates with their serum urate levels. All patients received a 3 T MRI of their index joint, serum urate level, CRP, and creatinine. The primary endpoint was to determine the prevalence of synovial pannus and the correlation of serum urate levels with the presence and/or severity of the synovial pannus on that same joint. MRI erosions, tophi, swelling, effusion, and osteitis were also documented. Seventy-two of 74 subjects (90% men) completed the protocol. Fifty-three of 72 (74%) index joints were the first metatarsophalangeal joint. Thirty-nine (54.2%) of the patients were on urate-lowering therapy; 15 (20.8%) and 7 (9.7%) were taking colchicine or a NSAID daily, respectively. Of the 72 subjects, 63 (87.5%) had synovial pannus on their MRI with good inter-reader agreement between the two radiologists. The mean serum urate level was 7.93 mg/dL. There was no correlation with the presence (p = 0.33) or severity (p = 0.34) of synovial pannus and serum urate levels. There was also no correlation with the presence or severity of synovial pannus and the secondary endpoints. The majority of patients with inter-critical gout have evidence of chronic synovial-based inflammation. However, the presence and severity of this inflammation do not appear to correlate with serum urate levels.

Rheumatology and oncology: an updated review of rheumatic manifestations of malignancy and anti-neoplastictherapy.

OBJECTIVE: Review of the literature addressing the rheumatic manifestations of various malignancies as well as of common chemotherapeutic agents. METHODS: A literature search was performed to identify key articles regarding the association of rheumatic disease with malignancy. RESULTS: Our review focused on the association of rheumatic disease with malignancy, paraneoplastic syndromes with rheumatic manifestations, and chemotherapeutic agents related to rheumatic syndromes. We have discussed the importance of a newly described autoantibody that may identify patients at risk for malignancy associated myositis. CONCLUSION: Based on our literature review, recommendations are suggested regarding who and how patients should be screened for malignancy when presenting with various rheumatic symptoms.