[Review of the effectiveness of an empirical antibiotic therapy in suspected ventilator-associated pneumonia].

Background: Ventilator-associated pneumonia (VAP) occurs in approximately 10-20% of mechanically ventilated patients, and is associated with an extremely high mortality rate (up to 70%). The purpose of the study was to determine the susceptibility spectrum of Klebsiella, Pseudomonas and Acinetobacter strains isolated from VAP patients.

Methods: We analysed 81 strains of microorganisms isolated from bronchoalveolar lavages (BAL) of VAP patients.

[Etiological factors of vascular grafts infections and their resistance to antibiotics].

The Aim: of our study was the identification of microorganisms causing vascular graft infections and the evaluation of their antimicrobial susceptibility.

Material And Methods: 25 patients with infected vascular graft, took part in our research. In 19 patients late type of infection was recognized, in 6 the infection was qualified as early.

[Evaluation of invasive tests in diagnosis of Helicobacter pylori infection and their correlation with endoscopic features in children with chronic gastritis].

Fifty children aged 8-17 years with histologically confirmed chronic gastritis were investigated for Helicobacter pylori (H. pylori) presence in gastric mucosa bioptates taken during endoscopy. Three invasive tests (histology, rapid urease test and culture) were done.