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Disruption of the colonic microflora is one of the most significant adverse effects of antibiotic (ATB) therapy. Excessive multiplication of toxigenic Clostridioides difficile strains is responsible for about 20 % of cases of post-antibiotic diarrhoea. The global trend of Clostridium colitis incidence, severity, mortality and in particular therapeutic failure keeps rising. At the Department of Infectious Diseases we work on long-term monitoring of the most important colitis-associated risk factors and evaluation of individual therapeutic and preventive procedures (selective ATB therapy, faecal bacteriotherapy). A diligent analysis of risk factors and knowledge of pathogenesis are a prerequisite to practical implementation of effective and rational precautions to curb spreading of this illness. In the future, we anticipate increased use of fecal microbiota transplant, improvements in faecal transplant administration, wider use of probiotics and selective ATBs and further introduction of passive and active immunization into practice.

We present a case of a 17-year-old female with anti-NMDAR encephalitis probably associated with vaccination against yellow fever. Her symptoms occurred 27 days after vaccination against yellow fever. Anti-NMDAR encephalitis manifested as acute psychosis, memory loss and catatonia following fever with complex partial epileptic seizures. Interictal electroencephalogram showed slow-wave delta background activity with "delta brushes". The diagnosis was confirmed by NMDAR antibody positivity in serum and cerebrospinal fluid. Since ovarian teratoma, as the most common cause of anti-NMDAR encephalitis, did not develop within five years from its onset, the association with vaccination against yellow fever seems to be highly probable.

Aim: Using a prospective analysis to assess the success of faecal bacteriotherapy (FBT) in antibiotic-associated colitis due to Clostridium difficile. To analyse whether any of the factors according to which the treated patients can be categorized has a statistically significant effect on the therapeutic outcome., Materials and Methods: During the 2-year study period (2015-2016), 71 patients received FBT. After treatment, the patients were followed up by means of clinic visits or by phone. If colitis did not recur within eight weeks of follow-up, the treatment was considered successful., Results: The overall success rate was 76%, with statistically insignificant decline in recurrences. Subgroup analysis did not show any statistically significant difference in the success rate between the routes of administration, i.e. through a naso-enteral feeding tube and rectal enema. Likewise, there were no statistically significant differences in the success rate between the types of prior antibiotic therapy or between using fresh and cryo-stored stool suspension. No unexpected adverse event or lethality occurred during the study period., Conclusions: Faecal bacteriotherapy is a successful and safe therapeutic alternative for recurrent C. difficile infections.

Introduction: Clostridium difficile infection (CDI) is currently the most frequent cause of nosocomial infectious diarrhea in adults in the developed countries. The goal of the study was to evaluate risk factors for relapsing and severe CDI in a set of patients hospitalized at the Clinic of Infectious Diseases at the University Hospital Brno., Materials and Methods: A retrospective analysis of epidemiological, clinical and laboratory data of 281 patients with proved CDI diagnosis hospitalized in the period from 1. 1. 2007 to 31. 12. 2010., Results: Patient age over 65 is a risk for severe CDI (OR 2.95, p < 0.001) and extends hospitalization at the first episode of CDI by about 3.2 days on average. Patients with 2 or more comorbidities (p < 0.05) or with a history of recent hospitalization (p 0.001) are at risk for both relapsing CDI and severe CDI. The use of proton pump inhibitors may increase the number of relapses (OR 1.94, p < 0.05). If the CDI symptoms appear within 7 days of taking antibiotics, there is a greater risk of relapse (OR 2.32, p < 0.05). If the symptoms occur after a longer period, a mild or moderate course of the disease can be expected (OR 0.31, p < 0.05)., Conclusions: To determine the risk level for development of relapsing or severe CDI, focus on risk factors from the patients medical history and their clinical and laboratory status is appropriate at the outset of CDI patients treatment. An early intensive monitoring of vital functions and administration of aggressive treatment can reduce complications, mortality and relapses of CDI.

Background: Describe risk factors for relapsing and severe Clostridium difficile infection (CDI) in a set of patients hospitalized at the Clinic of infectious diseases the University Hospital Brno., Material and Methods: A retrospective study observing epidemiological, clinical and laboratory data of 281 patients with proven diagnosis of Clostridium difficile infection hospitalized in the period from 1. 1. 2007 to 31. 12. 2010., Results: In the first part of the evaluation were enrolled 233 patients, 87 (37.3 %) patients had a record of relapsing CDI and 146 (62.7 %) patients had nonrelapsing CDI. Factors associated with relaps included 2 or more comorbidities, previous hospitalization during the 4 weeks before CDI, the use of proton pump inhibitors. In the second part of the evaluation were enrolled all 281 patients, severe CDI during any episode of the disease was observed in 181 (64.4 %) patients, while the remaining 100 (35.6 %) patients had mild or moderate CDI. The risk factors associated with severe CDI were age older than 65 years, history of coronary heart disease, chronic renal insufficiency, a combination of 2 or more comorbidities, previous hospitalization in a period of 4 weeks., Conclusions: Age older than 65 years is the risk for severe CDI. Patients with 2 or more comorbidities or with history of previous hospitalization are in a risk for both, relapsing and severe CDI. Use of proton pump inhibitors may lead to recurrence, probably on the basis of re-infection Clostridium difficile spores.