Bacterial bloodstream infection in critically ill patients with COVID-19: a retrospective cohort study.

Background: Intensive care unit (ICU) patients with coronavirus disease 2019 (COVID-19), have a high risk of developing bloodstream infections (BSIs). However, the characteristics of and risk factors for BSIs in these patients remain unclear. Objective: We aimed to identify prevalent causative pathogens of BSI and related factors in critically ill patients with COVID-19. Design: This was a single-center, retrospective cohort study. Methods: We analyzed the clinical characteristics and outcomes of 201 ICU patients with COVID-19. Logistic regression analysis was conducted to identify factors associated with BSI occurrence. Furthermore, we identified the primary causative pathogens of BSIs. The study outcomes were death or ICU discharge. Results: Among the 201 included patients, 43 (21.4%) patients developed BSI. The mortality rate was non-significantly higher in the BSI group than in the BSI group (65.1% versus 58.9%, p = 0.487). There were significant between-group differences in the obesity prevalence and sex distribution, but not corticosteroid usage. BSI occurrence was significantly associated with duration of mechanical ventilation (MV), presence of ventilator-associated pneumonia, use of neuromuscular blocking agents, length of stay in ICU (ICU LOS), high body mass index (BMI), and male sex. The main causative pathogens were Klebsiella pneumoniae, Acinetobacter baumannii, and Enterococcus faecalis. Multi-drug-resistant pathogens were found in 87% of cases. Regardless of the origin, the common risk factors for BSI were ICU LOS and MV duration. All BSIs were acquired within the hospital setting, with ≈60% of the cases being primary BSIs. A small proportion of the BSI cases were catheter-related (four cases, 6.2%). Ventilator-associated pneumonia and urinary tract infections were present in 25% and 9.4% of the BSI cases, respectively. On average, the first positive blood culture appeared ≈11.4 (±9.7) days after ICU admission. Conclusion: Elucidating the risk factors for and common pathogens of BSI can inform prompt management and prevention of BSIs.

Unexpected Serum and Urine Aluminum Concentrations in Pediatric Patients on Home Parenteral Nutrition.

The intravenous supply of aluminum (Al) present in parenteral nutrition solutions poses a high risk of the absorption of this element, which can result in metabolic bone disease, anemia, and neurological complications. The aim of this study is to determine the impact of long-term parenteral nutrition (PN) in children on serum Al concentration and its urinary excretion compared to healthy children. We evaluated serum Al concentrations and its urinary excretion in patients enrolled in the Polish home parenteral nutrition (HPN) program between 2004 and 2022. The study group included 83 patients and the control group consisted of 121 healthy children. In children whose PN was started in the neonatal period, we found higher serum Al concentrations and higher urinary Al excretion than in other subjects whose PN was started later. Only 12% of the children on chronic parenteral nutrition had serum Al concentrations of less than 5 µg/L. Healthy children in the control group had higher serum Al concentrations than those in the parenteral nutrition group, which may indicate the influence of one's environment and diet on Al serum levels.

Assessment pf physical fitness of 8 and 9-year-old children from Szczecin,Poland, involved in the obesity prevention program - pilot study.

INTRODUCTION: Increasing incidence of excess weight and poor physical fitness of children validates the need for preventive actions. The Szczecin municipality (gmina Szczecin) runs the "Odwazna ósemka" ("The Brave Eight") program - Prevention of excess weight and obesity in 8 and 9-year-old children attending elementary school in Szczecin, Poland. AIM: The assessment of physical fitness as well as the prevalence and intensity of excess body weight and blood pressure rates among the 8 and 9-year-old children attending elementary school in Szczecin, Poland. MATERIAL AND METHODS: Between 6th December 2016 and 3rd December 2017, 3407 8 and 9-year-old children were examined (1757 girls and 1650 boys). BMI (Body Mass Index) as well as WHR (Waist Hip Ratio) were calculated. All the children were assessed according to criteria established by the International Obesity Task Force (IOTF). The examination included basic anthropometric measurements, such as: body height and weight, waist and hip circumference, blood pressure, body constitution analysis, and physical fitness assessment. RESULTS: Excess body weight was diagnosed in 822 patients, which is 24.1% of the examined population. 369 patients were diagnosed with elevated blood pressure (10.8%). Very poor physical fitness - test abandoned before the completion (HR>180/min), was diagnosed in 151 children (4.5%), very poor physical fitness was diagnosed in 234 children (7%), poor physical fitness was diagnosed in 827 children (24.9%), sufficient physical fitness was diagnosed in 961 children (29.2%), good physical fitness was diagnosed in 650 children (19.5%), very good physical fitness was diagnose in 428 children (12.8%) and excellent in 70 children (2.1%). CONCLUSION: The fact of unsatisfactory physical fitness and excess body weight in children from Szczecin is unsettling. There is ceratainly a need for preventive measures in the broad sense.

Impact of antiviral treatment on survival in HCV-positive liver recipients.

BACKGROUND: Sequels of chronic HCV infection are currently one of the most common indications for liver transplantation (LTx). Because HCV reinfection and allograft injury are inevitable, it may influence survival. Earlier studies have not reported higher mortality among HCV-infected patients, but cumulative data seem to contradict these findings. The aim of the study was to analyze post-LTx survival in HCV-positive patients in comparison with non-HCV-positive recipients and impact of antiviral treatment on survival in patients with recurrent HCV hepatitis. MATERIAL AND METHODS: Using data from the Polish national transplant registry, a retrospective cohort study of 327 patients who underwent LTx between 2000 and 2012 was performed. Cumulative 5-year mortality for HCV-positive patients vs. HCV-negative recipients and HCV-positive recipients treated with pegylated interferon/ribavirin vs. non-treated subjects was calculated using Kaplan-Meyer methodology. Mortality hazard rates were estimated using univariate proportional Cox models. RESULTS: Liver transplantation in HCV-positive vs. HCV-negative recipients was associated with significantly lower survival rate (cumulative 5-year survival 89.8 vs. 80.26%, respectively, p=0.04276) with a 5-year mortality HR of 1.99. Antiviral treatment improved survival irrespective of virological response (84.06% treated vs. 51.22% non-treated, p=0.00003). Univariate Cox HR for HCV treated vs. untreated patients is 0.18. Further improvement of survival was significantly associated with sustained virological response (100% vs. 77.67%, p=0.042). CONCLUSIONS: Our study confirms higher mortality risk among HCV-infected transplant recipients, improved survival related to the HCV treatment following graft reinfection, and positive association between the HCV treatment success and better survival.