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Objectives: Emergency Departments (EDs) play a major role in managing acute and chronic illnesses, especially in low-to-middle-income countries like Pakistan, which lacks effective primary healthcare. This study reports the epidemiology and clinical characteristics of patients presenting over a two-year period at the Indus Hospital and Health Network (IHHN) adult ED in Karachi, Pakistan. Methods: This is a retrospective observational study conducted through chart review of 264,859 patients, aged 16 years and above, who presented to the IHHN ED, Korangi Campus, from January 2019 to December 2020 after obtaining approval from IHHN IRB. Results: Men were found to be the predominant presenting gender, with a slight rise in the number of women in 2020. The most frequent age group in 2019 was 15-25 (27.7%), whereas it was 25-35 years in 2020 (24.1%), with a decline in total number of elderly visits seen in comparison to previous years. The most frequently seen disposition was 'referral to clinic' in 2019 (48.4%) and 'discharged' in 2020 (39%). Out of all dispositions, maximum Length of stay (LOS) was seen in patients who left against medical advice in both years. Patient acuity showed the highest number of P3 (moderately ill) patients in both years. Infectious diseases accounted for greater than 10% of patients in both years (17.2% and16.5%), followed by gastrointestinal complaints (15.7% and 11.3%), genitourinary complaints (14.9% and 7.9%), and trauma (11.9% and 12.4%). Conclusion: Knowledge of epidemiology and clinical characteristics of patients can help facilitate timely planning of staff deployment and allocation of resources to avoid overcrowding, improve patient outcomes, and increase patient satisfaction through timely management.
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BACKGROUND: Interleukin-6 (IL-6) has been known to be involved in immune regulation, inflammatory response, and metabolism. It is also recognized as the major cause to underscore the pathology of severe COVID-19 patients. However, it remains to be seen if IL-6 is superior to other inflammatory biomarkers in ascertaining clinical severity and mortality rate for COVID-19. This study aimed to determine the value of IL-6 as a predictor of severity and mortality in COVID-19 patients and compare it with other pro-inflammatory biomarkers in the South Asian region. METHODS: An observational study was conducted, including all adult SARS-CoV-2 patients who had undergone IL-6 testing from December 2020 to June 2021. The patients' medical records were reviewed to collect demographic, clinical, and biochemical data. Other pro-inflammatory biomarkers apart from IL-6 included Neutrophils to Lymphocyte Ratio (NLR), D-dimer, C-reactive protein (CRP), ferritin, lactate dehydrogenase (LDH), and procal-citonin for analysis. SPSS version 22.0 was utilized. RESULTS: Out of the 393 patients who underwent IL-6 testing, 203 were included in the final analysis with a mean (SD) age of 61.9 years (12.9) and 70.9% (n = 144) were male. Fifty-six percent (n = 115) subjects had critical disease. IL-6 levels were elevated (> 7 pg/mL) in 160 (78.8%) patients. Levels of IL-6 significantly correlated with age, NLR, D-dimer, CRP, ferritin, LDH, length of stay, clinical severity, and mortality. All the inflammatory markers were significantly increased in critically ill and expired patients (p < 0.05). The receiver operator curve showed that IL-6 had the best area under the curve (0.898) compared to other pro-inflammatory biomarkers for mortality with comparable results for clinical severity. CONCLUSIONS: Study findings show that though IL-6 is an effective marker of inflammation and can be helpful for clinicians in recognizing patients with severe COVID-19. However, we still need further studies with larger sample size.