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Background: The presence of psoriasis is currently considered by the European Society of Cardiology cardiovascular prevention guidelines of 2016 as one possible cardiovascular risk factor. Patients with psoriasis and concomitant coronary artery disease treated by means of percutaneous coronary interven­tion (PCI) are a fairly large subgroup of patients that have been usually omitted in mainstream research. The aim herein, was to identify the incidence of psoriasis, baseline characteristics and periprocedural outcome with a special focus on procedural complications in patients undergoing percutaneous coronary procedures. Methods: All consecutive patients who had either coronary angiography or coronary angiography with immediate PCI in Poland in 2014 and 2015 were included. Patients were assigned to two groups based on previous diagnosis: with psoriasis and without psoriasis. Clinical outcome was defined as any periprocedural death. Results: There were 405,078 patients included in this analysis. Psoriasis (moderate or severe) was di­agnosed in 1507 (0.4%) of them. Psoriasis was an independent predictor of allergic reaction occurrence (odds ratio [OR] 6.02; 95% confidence interval [CI] 1.44–25.22; p = 0.014). After propensity score adjustment, psoriasis remained a significant predictor of allergic reaction (OR 5, 95% CI 1.2–20.7; p = 0.0245). There were no differences in rates of periprocedural deaths in patients with or without psoriasis (death: 0.95% vs. 0.62%, p > 0.05). Conclusions: Severe or moderate psoriasis is an independent risk factor for the occurrence of allergic reaction during percutaneous coronary procedures. There were no differences in periprocedural mortal­ity and complications in patients with versus those without psoriasis.

Reactive arthritis is an aseptic inflammation of synovium, tendons and fasciae triggered by an immunological reaction to a distant-site infection. It is usually asymmetric. It develops about 4 weeks after a prior infection of the genitourinary system (most often caused by Chlamydia trachomatis or Neisseria gonorrhoeae) or the gastrointestinal tract (most often: Shigella enteritidis, Salmonella typhimurium or Salmonella enteritidis, Campylobacter jejuni, Yersinia enterocolitica). A typical triad of symptoms includes: arthritis, conjunctivitis, and urethritis. Men aged 20-50 are most commonly affected. A considerable percentage of patients with reactive arthritis has the HLA-B27 antigen. Presence of the antigen heralds a more severe course of the disease and occurrence of articular complications. The disease may have a neoplastic course, sometimes it subsides without chronic consequences, and in some cases it evolves into other spondyloarthropathies.