High-Dose Vitamin C Treatment in Critically Ill COVID-19 Patients, A Retrospective Cohort Study

SARS-CoV-2 causes tissue damage in the endothelium and epithelium, increased vascular permeability and increased plasma levels of IL-6, IL-2, IL-7, IL-10 causing interstitial fibrosis in the lung is considered. Considering these factors in pathogenesis, a picture with high mortality from acute respiratory failure to severe ARDS emerges in critically ill COVID-19 patients. However, despite numerous studies, an effective antiviral treatment has not yet been found in COVID-19 disease. The low level of evidence for the recommendations presented in the guidelines on both treatment and mechanical ventilation has brought supportive treatments to the agenda. Recently, many articles have been published on the potential effects of anti-inflammatory and antioxidant treatments such as high-dose vitamin C, vitamin D, zinc and ozone therapy. In particular, high-dose intravenous vitamin C treatment is inexpensive, easily accessible, and it reduces mortality in patients with sepsis and ARDS in studies, suggesting that it may be beneficial in COVID-19 disease. this is a retrospective cohort study. The main goal of the study; to compare patients who did not receive high-dose vitamin C treatment in the first period of the epidemic and those who received treatment in the next period. the investigator aimed to determine the effect of Vitamin C on short-term mortality and length of stay in intensive care in critically ill COVID-19 patients. All patients' data on age, gender, body mass index, comorbidities (diabetes mellitus, hypertension, coronary artery disease, chronic obstructive pulmonary disease, other), PaO2 / FiO2 ratios, SOFA scores, ferritin, C-Reactive Protein, procalcitonin, lactate, neutrophil and lymphocyte values will be collected by scanning the hospital information system.