Background During the COVID-19 pandemic, different treatments have been used in critically ill patients. Using intravenous immunoglobulin (IVIG) has been suggested in various studies as an effective option. Our study aims to access the efficacy of IVIG in critically ill COVID-19 patients. Methods In this retrospective matched cohort study, records of three tertiary centers with a large number of COVID-19 admissions were evaluated and used. Based on treatment options, patients were divided into two groups, standard COVID-19 treatment (109 patients) and IVIG treatment (74 patients) patients. Also, the effect of IVIG in different dosages was evaluated. Patients with IVIG treatment were divided into three groups of low (0.25 gr/kg), medium (0.5 gr/kg), and high (1 gr/kg) dose. Data analysis was performed using an independent t test and one-way analysis of variance (ANOVA) to compare the outcomes between two groups, including duration of hospitalization, intensive care unit (ICU) length of stay, and mortality rate. Results The duration of hospitalization in the IVIG group was significantly longer than standard treatment (13.74 days vs. 11.10 days, p < 0.05). There was no significant difference between the two groups in ICU length of stay, the number of intubated patients, and duration of mechanical ventilation (p > 0.05). Also, initial outcomes in IVIG subgroups were compared separately with the standard treatment group. The results indicated that only the duration of hospitalization in the IVIG subgroup with medium dose is significantly longer than the standard treatment group (p < 0.01). Conclusion Our data indicate that the use of IVIG in critically ill COVID-19 patients could not be beneficial, based on no remarkable differences in duration of hospitalization, ICU length of stay, duration of mechanical ventilation, and even mortality rate.
Background: To access the effect of Intravenous immunoglobulin (IVIG) in critically ill corona virus disease 2019 (COVID-19) patients.Method: In this retrospective matched cohort study, records of three tertiary centers with large number of COVID-19 admissions were evaluated and used. Based on treatment options, patients were divided into two groups, standard COVID-19 treatment (109 patients) and IVIG treatment (74 patients) patients. Also, the effect of IVIG in different dosages was evaluated. Patients with IVIG treatment were divided into three groups of low (0.25 gr/kg), medium (0.5 gr/kg), and high (1 gr/kg) dose. Data analysis was performed using independent t-test and One-way analysis of variance (ANOVA) to compare the outcomes between two groups, including duration of hospitalization, intensive care unit (ICU) length of stay, and mortality rate.Result: The duration of hospitalization in the IVIG group were significantly longer than standard treatment (13.74 days vs. 11.10 days, p<0.05). There was not a significant difference between the two groups in ICU length of stay, number of intubated patients and duration of mechanical ventilation (P>0.05). Also initial outcomes in IVIG subgroups were compared separately with the standard treatment group. The results indicated that only the duration of hospitalization in the IVIG subgroup with medium dose is significantly longer than the standard treatment group (P<0.01).Conclusion: Using IVIG is not beneficial for COVID-19 patients based on no remarkable differences in duration of hospitalization, ICU length of stay, duration of mechanical ventilation and even mortality rate.
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