摘要
BACKGROUND Clostridium difficile infection(CDI)has increased in prevalence during the last years.The coronavirus disease 2019(COVID-19)pandemic has negatively influenced patient outcomes.The majority of the severe acute respiratory syndrome-coronavirus 2(SARS-CoV-2)-infected patients received antibiotics during hospitalization.AIM To analyze the factors that influenced CDI development after SARS-CoV-2 infection.METHODS Between March 2020 to December 2020,we performed a prospective observational study including 447 patients diagnosed with CDI who were admitted to our tertiary referral university hospital.The diagnosis of CDI was based on the presence of diarrhea(≥3 watery stools within 24 h)associated with Clostridium difficile toxins A or B.We excluded patients with other etiology of acute diarrhea.RESULTS Among the total 447(12.5%)patients with CDI,most were male(54.3%)and mean age was 59.7±10.8 years.Seventy-six(17.0%)had history of COVID-19,most being elderly(COVID-19:62.6±14.6 years vs non-COVID-19:56.8±17.6 years,P=0.007),with history of alcohol consumption(43.4%vs 29.4%,P=0.017),previous hospitalizations(81.6%vs 54.9%,P<0.001)and antibiotic treatments(60.5%vs 35.5%,P<0.001),requiring higher doses of vancomycin and prone to recurrent disease(25.0%vs 13.1%,P=0.011).Age over 60 years[odds ratio(OR):2.591,95%confidence interval(CI):1.452-4.624,P=0.001],urban residence(OR:2.330,95%CI:1.286-4.221,P=0.005),previous antibiotic treatments(OR:1.909,95%CI:1.083-3.365,P=0.025),previous hospitalizations(OR:2.509,95%CI:1.263-4.986,P=0.009)and alcohol consumption(OR:2.550,95%CI:1.459-4.459,P=0.001)were risk factors of CDI in COVID-19.CONCLUSION CDI risk is unrelated to history of SARS-CoV-2 infection.However,previous COVID-19 may necessitate higher doses of vancomycin for CDI.
