ABSTRACT
INTRODUCTION: The objective of the study was to evaluate the prevalence of Clostridium difficile-associated diarrhoea (CDAD) among hospitalised patients with antibiotic-associated diarrhoea (AAD) in general and by specific types of medical care and hospital units. METHODS: A prospective, cross-sectional, non-interventional, multicentre study. The main inclusion criteria were: patient age ≥ 18 years, hospital stay of at least 48 h, current antibiotic therapy or antibiotic therapy within the previous 30 days, loose stools (Bristol stool types 5-7 and stool frequency ≥ 3 within ≤ 24 consecutive hours or exceeding normal for the patient) and signed informed consent form. The stool sample was taken to the local (study site) microbiology laboratory for detection of glutamate dehydrogenase (GDH) and toxins A/B using enzyme immunoassay (EIA) stool test. RESULTS: From April 2016 to April 2017, a total of 1245 patients from 12 large hospitals were enrolled in the study. Data on 81 patients were excluded from the analysis for different reasons. Data on 1164 patients (45.2% males and 54.8% females) with a mean age of 54.9 years (range 18-95 years) were analysed. Length of hospitalisation was 2-188 days (median, 8 days). The EIA stool test showed CDAD-positive results in 21.7% (253/1164) patients. The patients were from surgery units (546/1164), internal medicine units (510/1164) and intensive care units (108/1164). The prevalence of CDAD among patients from surgery, internal medicine and intensive care units was 26.2, 17.8 and 17.6%, respectively. Oncology, gastroenterology, septic surgery, oncohaematology and general medical hospital units accounted for more than 75% of all patients included; the prevalence of CDAD by those hospital units was 11.3, 15.0, 39.2, 17.6, and 27.2%, respectively. The proportion of GDH-positive and toxin A/B-negative patients by the rapid stool test result was 16.8% (196/1164). The prevalence of CDAD varied widely between the hospitals (from 0 to 44.3%). CONCLUSIONS: The prevalence of CDAD among hospitalised patients with AAD in this study was 21.7% (95% confidence interval: 14.8 and 28.7%). The percentage of CDAD varied widely between hospitals and by specific types of medical care and hospital units.
ABSTRACT
BACKGROUND: Delirium, a common problem among hospitalized elderly patients, is not usually diagnosed by doctors for various reasons. The primary aim of this study was to evaluate the effect of a short training course on the identification of delirium and the diagnostic rate of delirium among hospitalized patients aged ≥65 years. The secondary aim was to identify the risk factors for delirium. METHODS: A prospective study was conducted in an acute-care hospital in Moscow, Russia. Six doctors underwent a short training course on delirium. Data collected included assessment by the confusion assessment method for the intensive care units, sociodemographic data, functional state before hospitalization, comorbidity, and hospitalization indices (indication for hospitalization, stay in intensive care unit, results of laboratory tests, length of hospitalization, and in-hospital mortality). RESULTS: Delirium was diagnosed in 13 of 181 patients (7.2%) who underwent assessment. Cognitive impairment was diagnosed more among patients with delirium (30.0% vs 6.1%, P=0.029); Charlson comorbidity index was higher (3.6±2.4 vs 2.3±1.8, P=0.013); and Barthel index was lower (43.5±34.5 vs 94.1±17.0, P=0.000). The length of hospitalization was longer for patients with delirium at 13.9±7.3 vs 8.8±4.6 days (P=0.0001), and two of the 13 patients with delirium died during hospitalization compared with none of the 168 patients without delirium (P=0.0001). CONCLUSION: Although the rate of delirium was relatively low compared with studies from the West, this study proves that an educational intervention among doctors can bring about a significant change in the diagnosis of the condition.