Clostridium difficile infection epidemiology and management: Comparison of results of a prospective study with a retrospective one in a reference teaching and research hospital in Northern Italy

Am J Infect Control. 2016 Nov 1;44(11):1214-1218. doi: 10.1016/j.ajic.2016.05.003. Epub 2016 Jun 29.

Abstract

Background: Clostridium difficile-associated disease (CDAD) is the most common infectious antibiotic-associated diarrhea and is a growing health care problem. Prevention of Clostridium difficile infection focuses on clinical and epidemiologic infection control measures.

Methods: Between 2008 and 2009, we conducted a retrospective study that showed an incidence of CDAD among the highest reported in the literature. Subsequently, we developed a preventive protocol that was adopted in our hospital in 2010. We then conducted a prospective study to investigate prevalence, incidence, and mortality of CDAD and to compare the results with those of the retrospective study, evaluating adherence to preventive measures and their efficacy.

Results: In both studies, prevalence and incidence significantly increased in older patients. Crude prevalence was similar in the 2 studies. The incidence rate increased by 36%, with a significant increase only in the C and D wards. In-hospital mortality rose in both prevalent and incident cases. Regarding adhesion to hospital protocol, 77% of prevalent cases were treated with the required procedure. The highest percentage of isolated patients was achieved in C and D wards. In these wards we detected lower training hours per nurse. However, in 2013, we observed a significant decrease in incidence of CDAD and found a hospital prevalence of 0.33%.

Conclusions: Health care personnel education could be more important than the possibility of isolating infected patients in single rooms.

Keywords: Clostridium difficile infection; epidemiology; management.

MeSH terms

  • Aged
  • Aged, 80 and over
  • Attitude of Health Personnel
  • Clostridioides difficile / isolation & purification*
  • Clostridium Infections / epidemiology*
  • Clostridium Infections / microbiology
  • Clostridium Infections / mortality
  • Clostridium Infections / prevention & control*
  • Cross-Sectional Studies
  • Education, Medical*
  • Female
  • Guideline Adherence
  • Hospitals, Teaching
  • Humans
  • Incidence
  • Infection Control / methods*
  • Italy / epidemiology
  • Male
  • Middle Aged
  • Prospective Studies
  • Retrospective Studies