Faculty Bibliography

BACKGROUND/UNASSIGNED:Psoriasis is a chronic immune-mediated inflammatory disease associated with heightened cardiovascular risk. Platelets are increasingly implicated in this link through their capacity to amplify vascular inflammation and interact with leukocytes. Circulating leukocyte-platelet aggregates are elevated in psoriasis, although the biological significance of these aggregates remains incompletely understood. We investigated whether increased leukocyte-platelet aggregates is associated with alterations in the platelet transcriptomic profile in psoriasis. METHODS/UNASSIGNED:Leukocyte-platelet aggregate levels were compared between psoriasis patients (n = 42) and healthy controls (n = 29). Psoriasis patients were stratified by the cohort median lymphocyte-platelet aggregate (LyPA) or neutrophil-platelet aggregate (NPA) levels into high vs low aggregate groups. Platelet RNA sequencing was then performed to define transcriptomic differences in high-vs low-aggregate psoriasis. RESULTS/UNASSIGNED:= 0.04) compared with healthy controls (mean age 42; 55% male; 69% Caucasian). Platelet RNA sequencing revealed that psoriasis patients with high LyPA or high NPA had downregulation of platelet inflammatory pathways, including interferon, tumor necrosis factor (TNF), IL-8, and IL-6 signaling. CONCLUSION/UNASSIGNED:These findings identify inflammatory platelet transcriptomic alterations associated with elevated lymphocyte-platelet and neutrophil-platelet aggregates in psoriasis and motivate further work to define the functional consequences of leukocyte-platelet aggregates in psoriasis.

Pericardial disease is common in patients with immune-mediated inflammatory diseases (IMIDs), especially in systemic lupus erythematosus. Pericardial disease may present as an asymptomatic pericardial effusion or acute and recurrent pericarditis, and may sometimes lead to complications (cardiac tamponade and constrictive pericarditis). Pathophysiology of pericarditis in IMIDs is likely related to the underlying immune dysregulation. Diagnosis of IMID-related pericarditis relies on general diagnostic criteria, supported by inflammatory biomarkers and non-invasive multimodality imaging. Initial management of IMID-related pericarditis overlaps with idiopathic pericarditis (nonsteroidal anti-inflammatory drugs and colchicine) together with treatment of the underlying IMID. Glucocorticoids are used in cases of poor response to first-line treatments. The use of immunosuppressive therapies is driven by the underlying IMID and systemic organ involvement beyond the pericardium. Multi-disciplinary care collaboration between cardiologists, radiologists, internists, and rheumatologists is pivotal to develop an appropriate, common treatment plan based on the individual features of each patient with IMIDs.

Inflammatory myocardial and pericardial syndromes (IMPS), including myocarditis, pericarditis, and overlapping myopericardial syndromes, constitute a heterogeneous group of immune-mediated cardiac disorders with clinical trajectories ranging from complete recovery to progressive heart failure and sudden death. This state-of-the-art review synthesizes current insights into immunopathogenesis, emphasizing the interplay among genetic susceptibility, environmental factors, and systemic inflammatory drivers, including rheumatological diseases. A pragmatic diagnostic framework is presented; it integrates targeted serological evaluation, genetic testing, multimodality imaging, and selective endomyocardial biopsy to enable precise etiologic classification. Therapeutic strategies are examined across the spectrum of disease severity, including guideline-directed medical therapy for heart failure, immunosuppression for autoimmune and fulminant phenotypes, and cytokine-directed biologics for recurrent pericarditis. Prognostic determinants, indications for advanced heart failure therapies, and emerging directions in precision immunology, molecular profiling, and AI-enabled risk stratification are discussed to guide future clinical and translational advances.

INTRODUCTION/BACKGROUND:Inflammatory bowel disease (IBD) is a chronic inflammatory condition affecting approximately 2.39 million individuals in the USA. IBD is associated with extraintestinal manifestations (EIMs), among which pericarditis is prominent, comprising 70% of cardiac EIMs. The onset of pericarditis in these patients is primarily attributed to IBD medication-related adverse effects and is predominantly documented through case reports. This highlights the need for an epidemiological study in a large, propensity-matched cohort, given the significant morbidity and mortality of pericarditis. METHODS:Using the National Institutes of Health's (NIH) All of Us Research Program, we conducted a cross-sectional study and propensity-matched 5,178 IBD cases to 15,534 controls (1:3). We compared demographics, clinical characteristics, prevalence of autoimmune diseases, and rates of pericarditis. Logistic regressions assessed the association between IBD and pericarditis, adjusting for confounders (p < 0.15), and a sensitivity analysis confirmed the association (p < 0.001). A Kaplan-Meier analysis compared the incidence of pericarditis in various IBD severity cohorts, including mild (n = 620) and moderate/severe (n = 1,908), stratified by IBD medication exposure. RESULTS:Pericarditis was significantly more prevalent in IBD cases (1.3% vs. 0.6%; absolute risk difference 0.7%, 95% confidence interval [CI]: 0.37%-1.03%), with significant associations in univariable (odds ratio [OR] 2.2, 95% CI: 1.6-3.0, p < 0.001) and multivariable (OR 1.9, 95% CI: 1.3-2.6, p < 0.001) analyses. IBD preceded pericarditis in 65% of cases. There was no difference in pericarditis-free survival between mild and moderate/severe cohorts (p = 0.90). CONCLUSION/CONCLUSIONS:This study uniquely provides evidence of a significant association between IBD and pericarditis, establishing pericarditis as a clinically significant EIM in a large, diverse US cohort, independent of disease severity. This highlights the need for heightened screening to enhance pericarditis management and patient outcomes.

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Pericarditis is the most frequent manifestation of pericardial disease and accounts for up to 5% of emergency department visits for chest pain. Although traditionally considered a benign and self-limited condition, it is a heterogeneous syndrome with a broad aetiological spectrum and potentially significant morbidity. While mortality is low, the burden of complications like recurrent disease, cardiac tamponade or constrictive pericarditis, and the frequent need for hospitalisation underscore its clinical relevance. The growing availability of multimodality imaging and the publication of updated international guidelines in 2025 have recently renewed attention to pericardial diseases, refining diagnostic criteria, risk stratification and therapeutic approaches. In high-income settings, idiopathic or presumed viral pericarditis remains the most common presentation. However, a substantial proportion of patients harbour alternative aetiologies that carry distinct prognostic implications and require tailored diagnostic and management strategies. In this review, we use the ABCDE mnemonic as a pragmatic framework to highlight five clinically important and often under-recognised forms of pericardial disease. Pericarditis associated with autoimmune and systemic inflammatory diseases is typically characterised by recurrent or refractory inflammatory courses and frequent extracardiac involvement. Bacterial pericarditis, although rare, represents a life-threatening condition requiring rapid aetiological identification and aggressive therapy. Cancer-related pericardial disease often presents with large pericardial effusions or cardiac tamponade and is associated with a poor prognosis largely determined by the underlying malignancy. Damage-related and drug-related pericarditis encompasses postcardiac injury syndromes and pharmacological toxicity. Finally, endocrine and metabolic disorders, including uraemia, hypothyroidism and infiltrative conditions such as amyloidosis, are associated with pericardial disease that manifests with atypical features and effusion. Early recognition of these entities is critical, as management extends beyond standard anti-inflammatory therapy and often requires correction of the underlying cause and close multidisciplinary collaboration. This ABCDE approach can aid clinicians in identifying these uncommon high-risk forms of pericarditis and optimising patient-centred care.