The Effect of Uroshield on Sputum-specimen Bacterial Growth and Multidrug Resistant Organisms in Mechanically Ventilated Patients

Background: Ventilator-associated pneumonia is a frequent complication of mechanical ventilation, caused by bacterial proliferation and biofilm formation on endotracheal tubes. The UROSHIELDTM is a small device that generates low-energy surface acoustic waves, which transmit energy to the endotracheal tube through a thin cable attached to the tube. Laboratory studies using catheterized urinary tract models have shown a significant reduction in microbial colonization and reduced development of antimicrobial resistance in UROSHIELDTM device treated individuals.

Purpose: To evaluate the impact of a UROSHIELDTM device, adapted for endotracheal tube diameter, on the development of positive sputum cultures in intubated patients.

Methods: The study was prospective, double-blind, interventional and randomized. Included were newly intubated patients, who were randomized at a rate of 1:1 by a physician not involved in the study. Patients, treating staff and study investigators were blinded to whether the patients received true or sham devices. Sputum cultures were taken at baseline and every three days for 15 days.