Objective Response to the coronavirus disease 2019 (COVID‐19) pandemic has resulted in shelter‐in‐place orders and major changes to individuals’ daily lives. The impact of such stressors on disease activity in individuals with axial spondyloarthritis (axSpA) is unclear. The aim of this study is to examine whether stress, anxiety, and depression are associated with patient‐reported disease activity, after accounting for important factors. Methods We administered a survey to an axSpA cohort from a single center with well‐defined demographic and disease characteristics. We included questions about job status changes, exercise, medication use, disease activity (by the Bath Ankylosing Spondylitis Disease Activity Index [BASDAI]), and psychological factors (stress, depressive symptoms, and anxiety). Separate multivariable linear models examined the associations between perceived stress, anxiety, and depression with the BASDAI. Results After adjustment for potential confounders, those with higher levels of stress had a statistically significant 0.54‐point higher BASDAI, on average, compared with those with lower levels of stress (95% confidence interval [CI]: 0.11, 0.97). Those with higher levels of anxiety also had a statistically significant higher BASDAI, on average, compared with those with lower levels of anxiety (β: 0.95, 95% CI: 0.18, 0.99). The association between depression and BASDAI was not statistically significant. We did not find differences in these associations among subgroups of age, job status, or county of residence. Conclusion Individuals with axSpA with higher levels of stress and anxiety had significantly higher disease activity levels, although with a difference below clinical importance. Further planned studies will evaluate the trajectory of disease activity.
Background:Axial Spondyloarthritis (axSpA) is a chronic inflammatory disease affecting the axial skeleton. It includes non-radiographic axSpA and radiographic axSpA [Ankylosing Spondylitis (AS)]. Male axSpA patients often have greater damage, while women report a higher disease burden. The role of pelvic morphology in the axSpA phenotype has not been explored. There is anatomic sexual dimorphism between the male and female pelvis. Given the phenotypic gender differences in axSpA, the role of pelvic morphometry is of interest.Objectives:The purpose of this study is to determine whether an association exists between pelvic dimensions and radiographic damage in patients with axSpA, as well as to compare these measurements in axSpA patients and healthy controls.Methods:This was a cross-sectional analysis comparing axSpA cases from a prospective cohort and non-axSpA controls from the UCSF radiology databank. Informed consent was obtained from axSpA cohort patients and this study was approved by the institutional IRB. To be included in the analysis, we limited inclusion to age ≤ 50 with an Anterior Posterior (AP) pelvis radiograph in the system. We excluded non-nulliparity, pelvic fracture history, BMI ≥ 30kg/m2, any prosthetic history and avascular necrosis. We measured the pelvic inlet, pelvic outlet, and subpubic angle (based on validated scoring methods) (Figure 1) and assessed its relation to sacroiliac joint (SIJ) damage (average SIJ score, New York criteria) and modified Stoke Ankylosing Spondylitis Spine Score (mSASSS) in cases. AxSpA patients were also compared to age/gender matched controls. Pelvic measurements were performed by 2 blinded independent-trained readers in randomized, blinded image order. Inter-rater reliability was assessed. When examining the relationship between pelvic measurements and damage, linear regression was used to stratify by gender and adjust for potential confounders.Results:The axSpA cohort included 481 patients, of which 210 men and 89 women were included in this analysis and gender/age matched controls. Rater inter-class correlation was above 0.70 for pelvic outlet and above 0.80 for other measures. Cases and controls were similar (Table 1). The regression analysis showed a significant relationship between the sub-pubic angle and damage in the spine (coeff=-0.342, p=0.003) in men with axSpA. A sensitivity analysis, excluding mSASSS outliers (mSASSS ≥ 16) upheld the relationship (coeff=-1.40, p=0.002).Conclusion:In men with axSpA, there appears to be a relationship between sub-pubic angle and spinal radiographic damage. This is consistent with our finding that women have larger sub-pubic angles and lower spinal radiographic damage than men. A greater sub-pubic angle may protect against spinal involvement or associate with other protective factors. Further work should be performed to understand the contribution of pelvic anatomy to damage in axSpA.Disclosure of Interests:Ethan Zaccagnino: None declared, Rina Patel: None declared, Lianne S. Gensler Consultant of: AbbVie, Eli Lilly, Gilead, Novartis, Pfizer and UCB., Grant/research support from: Pfizer and UCB.
on enrichment culture only n=3 or an alternative clinical diagnosis was clearly documented n=4. One case was incorrectly labeled as a joint aspirate. The remaining positive samples, 17 in 12 patients, came from prosthetic joint aspirates. Conclusion:In line with known literature, staph.aureus was the most common pathogen 1 , however there were a number of other bacteria identified which needs to be taken into account when formulating local antimicrobial guidelines. Current literature reports surgical treatment as not superior to medical 2 , yet 65% of cases here under went joint lavage in theatre. This information will be used to inform local clinical practice, and, guide recruitment targets for a large multi-centre study collecting data and samples from patients presenting with a hot swollen joint, with the aim of identifying a specific biomarker for SA.
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