S0164 Clostridioides difficile Infection in COVID-19 Patients
2020
INTRODUCTION: Gastrointestinal manifestations including diarrhea are prevalent among COVID-19 patients Given the frequent use of broad-spectrum antibiotics, COVID-19 patients are also at substantial risk for hospital-acquired diarrheal illnesses We aimed to evaluate the prevalence and outcomes of Clostridioides difficile infection (CDI) among hospitalized patients with COVID-19 METHODS: This was a retrospective cohort study of patients hospitalized with laboratory confirmed COVID-19 across 9 hospitals in Massachusetts in 3/11/2020-4/2/2020 All patients underwent stool testing for CDI with glutamate dehydrogenase (GDH) and ELISA immunoassay (EIA) for toxin Inconclusive GDH/EIA with high clinical suspicion were confirmed with polymerase chain reaction (PCR) Positive CDI rate in COVID-19 patients was compared with local historical inpatient CDI testing data from 2019 Outcomes and mortality were also compared amongst COVID-19 patients with and without CDI RESULTS: Of the 390 hospitalized patients with COVID-19, 97 (24 9%) were tested for CDI and included in the study All patients received ≥2 antibiotics (median = 4, IQR 2-5 5) Compared to historical controls, COVID-19 patients did not have higher overall CDI positive rate (5 2% [n = 5] vs 9 8% [n = 280];P = 0 16) Specifically, GDH/EIA positive rates were similar between both groups (5 2% vs 5 3%) There were no statistically significant differences in median antibiotic use, PPI use, laboratory data or need for ICU care between CDI vs non-CDI patients However, all-cause mortality was significantly higher among CDI patients (80% vs 12 2%;P < 0 0001) Table 1 CONCLUSION: The prevalence of CDI was not higher among COVID-19 patients despite widespread use of broad-spectrum antibiotics With strict isolation of COVID-19 patients in most hospitals, together with aggressive hand washing and donning/doffing protocols, it is possible that such rigorous measures resulted in the unintended benefit of reducing nosocomial CDI However, albeit a limited sample size, development of CDI was associated with significantly worse outcomes and higher mortality As such, early CDI testing should be implemented among patients with COVID-19 to ensure prompt diagnosis and management
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