Bench-test comparison of 26 emergency and transport ventilators

• DOI: 10.1186/s13054-014-0506-0
• Publication Date: 2014-10-14T11:06:28Z
• Authors: Erwan L'Her; Annie Roy; Nicolas Marjanovic
• Keywords: Bench to bedside

Numerous emergency and transport ventilators are commercialized new generations arise constantly. The aim of this study was to evaluate a large panel allow clinicians choose device, taking into account their specificities use.This experimental bench-test took general characteristics technical performances. Performances were assessed under different levels FIO2 (100%, 50% or Air-Mix), respiratory mechanics (compliance 30,70,120 mL/cmH2O; resistance 5,10,20 cmH2O/mL/s), leaks (3.5 12.5 L/min), using test lung.In total 26 analyzed classified four categories (ICU-like, n = 5; Sophisticated, 10; Simple, 9; Mass-casualty military, 2). Oxygen consumption (7.1 15.8 L/min at 100%) the Air-Mix mode (FIO2 45 86%) differed from one device other. Triggering performance heterogeneous, but several sophisticated depicted triggering capabilities as efficient ICU-like ventilators. Pressurization not adequate for all devices. At baseline, able synchronize, with variations among conditions. Leak compensation in most 4/10 devices correct least partially system leaks, ventilators.Major differences observed between categories, either terms reliability, across spectrum operation. Huge variability tidal volume delivery some response modifications should make question use clinical setting.