Background/Objectives: Chronic hepatitis C virus (HCV) infection is associated with a wide spectrum of extrahepatic manifestations, involving the immune, dermatologic, endocrine, vascular, and neuropsychiatric systems. Among these, mixed cryoglobulinemic vasculitis (CryoVas) remains one of the most clinically relevant complications. This work aims to provide a structured overview of HCV-related extrahepatic conditions and to analyze the clinical and virological outcomes of direct-acting antivirals (DAAs) in CryoVas patients. Methods: We first categorized and reviewed extrahepatic manifestations of HCV across five major domains: immune, inflammatory/metabolic/vascular, dermatological, thyroid, and neuropsychiatric. Subsequently, we conducted a comparative analysis of five clinical studies evaluating the impact of DAA therapy in patients with CryoVas. Data on demographics, clinical symptoms, treatment regimens, sustained virological response, and clinical response were extracted and summarized. Results: HCV was found to be associated with numerous extrahepatic conditions, including mixed cryoglobulinemia, non-Hodgkin lymphoma, autoimmune thyroiditis, insulin resistance, and neurocognitive symptoms. In the CryoVas subgroup analysis, virological response rates were uniformly high (88.9–100%), but clinical remission varied significantly. Complete response ranged from 39% to 90%, highlighting a discrepancy between viral eradication and extrahepatic symptom resolution. These findings underscore the need for individualized follow-up and further investigation into persistent immunological dysfunction post-sustained virological response (SVR). However, clinical outcomes were more variable: complete response (CR) varied between 39% and 90%, partial response (PR) ranged from 4% to 42%, and no response (NR) was reported in 0% to 40% of cases. Although significant improvement in key manifestations such as purpura, arthralgia, and neuropathy was frequently observed, a subset of patients continued to exhibit residual or refractory symptoms despite achieving SVR. Conclusions: HCV infection exerts multisystemic effects that extend beyond liver pathology. While DAAs offer near-universal virological clearance, the heterogeneous clinical response in CryoVas underscores the need for closer monitoring of extrahepatic outcomes. Future research should assess whether combining DAAs with immunomodulatory strategies can improve symptom control and long-term outcomes in patients with severe or refractory CryoVas.

Background and Objectives: Lifestyle and dietary behaviors are increasingly recognized as important factors influencing symptom management and quality of life (QoL) in patients with rheumatic diseases. However, evidence remains limited regarding how specific lifestyle patterns interact with sociodemographic and clinical variables to shape patient-reported outcomes. This study aimed to investigate the relationship between diet, lifestyle behaviors, and self-perceived QoL in a cohort of patients with rheumatic conditions. Methods: In this cross-sectional study, 350 adults with rheumatic diseases completed a structured questionnaire covering sociodemographic data, rheumatologic diagnosis and treatment, dietary behaviors, lifestyle factors (physical activity, sleep, smoking, alcohol), and QoL assessments (scales 1–10). Statistical analyses included descriptive measures, Chi-square tests, correlation analyses, logistic regression, and linear regression models to identify predictors of QoL. Results: The majority of participants were female (86.9%) and aged between 26 and 55 years. Urban patients were more likely to attribute a positive influence of diet on QoL, while rural participants reported stronger disease burden. Logistic regression showed that adherence to a special diet significantly increased the odds of reporting good QoL. Linear regression identified sleep quality (β = 0.42), perceived dietary influence (β = 0.29), and physical activity (β = 0.18) as independent predictors of QoL (adjusted R² = 0.47, all p < 0.001). Correlation analyses further revealed that disease burden negatively impacted emotional well-being and sleep, while dietary influence correlated positively with QoL. Conclusions: This study highlights the multidimensional role of diet and lifestyle in shaping QoL in patients with rheumatic diseases. Alongside pharmacological treatment, targeted lifestyle interventions focusing on nutrition, physical activity, and sleep hygiene may substantially improve patient outcomes. Future longitudinal studies are warranted to confirm these associations and explore causal mechanisms.

Background: Respiratory viral infections remain a major cause of morbidity and hospitalization in children. The increased use of multiplex molecular assays has improved the detection of simultaneous viral pathogens, raising questions about the clinical relevance of pediatric viral co-infections. Objective: The aim of this study is to synthesize recent evidence on respiratory viral co-infections in children, focusing on clinical severity, healthcare burden, mechanisms, and interpretation of multiplex detections. Methods: This narrative review included studies published between 1 January 2022 and 30 September 2025, identified through PubMed and Web of Science. Eligible studies involved children and adolescents (0–18 years) with laboratory-confirmed respiratory viral co-infections, mainly detected by multiplex PCR. Evidence was synthesized qualitatively across severity, neutral or inconsistent impact, viral interference, and post-acute implications. Results: Forty-five studies were included. The most frequently reported viruses were respiratory syncytial virus (RSV), rhinovirus, adenovirus, influenza virus, and human metapneumovirus (HMPV). Clinical impact was heterogeneous and depended more on specific viral pairings and host factors than on the number of detected viruses. RSV-containing combinations, particularly with HMPV, adenovirus, or rhinovirus, were more often linked to increased respiratory burden, whereas some rhinovirus-associated combinations appeared compatible with viral interference. Conclusions: Pediatric respiratory viral co-infection is clinically relevant but context-dependent. Multiplex results should be interpreted together with clinical, laboratory, and radiological findings.