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Introduction/objectives The current 2019 novel coronavirus outbreak is continuing to spread rapidly despite all efforts. Patients with rheumatic disease may have higher levels of anxiety due to their disease characteristics and medications. The web-based platforms are widely used sources for gaining medical information. YouTube presents a wide range of medical information, but there are concerns on its quality. Therefore, we aimed to evaluate the quality of the YouTube videos about COVID-19 and rheumatic diseases link. Method This is a descriptive study. A total of 360 videos listed by the YouTube search engine (www.youtube.com) in response to six search terms were evaluated. The Global Quality Scale (GQS) was performed to evaluate video quality. Three groups were formed according to GQS scores: high quality, moderate quality, and low quality. Video parameters were compared between these groups. Results After the exclusion criteria, 46 videos were reviewed. Of the videos, 41.4% (n = 19) were of high-quality group, 21.7% (n = 10) were moderate-quality group, and 36.9% (n = 17) were of low-quality group. Significant difference was detected between the quality groups in terms of views per day (p = 0.004). No significant difference was detected in comments per day (p = 0.139) and like ratio (p = 0.232). Conclusions Besides high-quality videos, there were substantially low-quality videos that could cause misleading information to spread rapidly during the pandemic. Videos from trustworthy sources such as universities, academics, and physicians should be kept in the foreground. Keywords COVID-19. Pandemic. Rheumatic diseases. SARS-CoV-2. YouTube Key Points •Web-based platforms have become an important source of health-related information. One of the most important online sources is YouTube because it is easy accessible and free. •Of the videos evaluating the link between COVID-19 and rheumatic diseases, 41.4% (n = 19) were of high quality. •The main sources of high-quality videos were academics/universities and physicians. •The most frequently discussed topics in videos were the place of hydroxychloroquine in the treatment of COVID-19 and whether to continue the use of existing rheumatological drugs.

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causative agent of the coronavirus disease 19 (COVID-19) pandemic, which is deeply affecting the whole world. In this new case for the scientific world, scientists are investigating the etiopathogenesis of viral infection-induced damage and have started to focus on the short and long-term immune system effects and alterations after SARS-CoV-2 infection. The case is here reported of a 53-year-old female patient with acute monoarthritis after SARS-CoV-2 infection, who responded adequately to 150 mg/day diclofenac treatment, and the available case reports are comprehensively reviewed. With the focus on arthritis after SARS-CoV2 infection, which emerges as a new pathological condition associated with COVID-19, it was aimed to examine the possible immunological mechanisms of post-COVID-19 arthritis based on the current data on SARS-CoV-2 and the known pathogenetic background of viral arthritis.

Objectives: This study aims to compare kinesiophobia levels between patients with fibromyalgia syndrome (FMS) and healthy volunteers and to investigate the factors associated with kinesiophobia in FMS. Patients and methods: This case-control study included 88 female patients with FMS (mean age 41.61 years; range 21 to 61 years) and 67 female healthy volunteers (mean age 41.34 years; range 19 to 59 years). The participants' age, body mass index (BMI), and educational status were recorded. Patients were evaluated using a visual analog scale for pain, the Fibromyalgia Impact Questionnaire (FIQ) for disease activity, the Hamilton Depression Scale (HAM-D) for depression level, and the Tampa Scale for Kinesiophobia (TSK) for kinesiophobia. Additionally, the patients' serum 25-hydroxyvitamin D levels were measured. Results: No significant differences were found between the patient and control groups in terms of age, BMI, and educational status (p>0.05). The mean TSK scores were 42.0±7.6 in the patient group and 37.2±8.8 in the control group. TSK score was significantly higher in the patient group (p<0.001). BMI levels, FIQ scores, and vitamin D concentrations were significantly associated with TSK scores according to the linear regression analysis (p<0.05). However, age, symptom duration, and HAM-D scores were not found to be associated with TSK scores (p>0.05). Conclusion: Kinesiophobia scores were significantly higher in patients with FMS. Physicians should focus on kinesiophobia when evaluating patients with FMS and inform patients about the importance and treatment strategies of kinesiophobia.

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