Risk factors of Clostridium difficile infection in ICU patients with hospital-acquired diarrhea: A case-control study
Majid Akrami1, Hadiseh Hosamirudsari2, Yousef Alimohamadi3, Samaneh Akbarpour4, Leyla Mehri5, Akram Khalili Noshabadi5, Mahnaz Sarabi5, Majid Neshat5
1 Department of Anesthesiology, Baharloo Hospital, Railway Square, Tehran University of Medical Sciences, Tehran, Iran 2 Department of Infectious Diseases, Baharloo Hospital, Railway Square, Tehran University of Medical Sciences, Tehran, Iran 3 Anitimicrobial Resistance Research Center, Institute of Immunology and Infectious diseases, Iran University of Medical Sciences, Tehran, Iran 4 Occupational Sleep Research Centre, Baharloo Hospital, Tehran University of Medical Sciences, Tehran, Iran 5 Intensive Care Unit, Baharloo Hospital, Railway Square, Tehran University of Medical Sciences, Tehran, Iran
Correspondence Address:
Hadiseh Hosamirudsari Department of Infectious Diseases, Baharloo Hospital, Railway Square, Tehran University of Medical Sciences, Tehran Iran
 Source of Support: None, Conflict of Interest: None
DOI: 10.4103/2221-6189.299181

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Objective: To identify the risk factors of Clostridium difficile infection (CDI) in diarrheal patients admitted to the intensive care unit (ICU) in Tehran Baharloo Hospital.
Methods: A case-control study was conducted on ICU patients with hospital-acquired diarrhea. A total of 101 patients were divided into two groups: the case group (CDI positive, n=47) and the control group (CDI negative, n=54). The baseline information such as use of antibiotics, other drugs administration, treatments before diarrhea, laboratory results, and vital signs of the two groups were compared. Besides, logistic regression model was used to assess the correlation between CDI positivity and mortality.
Results: Hospital stay length, ICU stay length, duration from admission to diarrhea onset, and nasogastric feeding duration, mechanical ventilation rate and its duration were significantly different from these of the control group (P<0.05). The frequency of proton pump inhibitor and carbapenem in the case group was significantly higher than that of the control group (P<0.05). In addition, age had a significant effect on the mortality of CDI patients.
Conclusions: Patients with older age, longer duration of hospital or ICU stay, longer duration of endotracheal feeding and/or intubation were more susceptible to CDI. In addition, proton pump inhibitor and carbapenem use influenced the gut microbiome diversity and increased the CDI risk in patients. |