Carlos Delgado1, Jose E Romero2, Jaume Puig3, Ana Izquierdo3, Carlos Ferrando3, F Javier Belda3, Marina Soro3. 1. Department of Anesthesia and Critical Care, Hospital Clínico Universitario, Valencia, Spain. cardelna@gmail.com. 2. IBIME, ITACA Center, Universidad Politécnica de Valencia, Valencia, Spain. 3. Department of Anesthesia and Critical Care, Hospital Clínico Universitario, Valencia, Spain.
Abstract
BACKGROUND: During recent years, ventilators using turbines as flow-generating systems have become increasingly more relevant. This bench study was designed to compare triggering and pressurization of 7 turbine mid-level ICU ventilators. METHODS: We used a dual-chamber lung model to test 7 mid-level ICU ventilators in pressure support mode with levels of 10, 15, and 20 cm H2O with 2 PEEP levels of 5 cm H2O and the minimum level allowed by the ventilator. A ventilator was connected to the master chamber to simulate 2 different effort levels. Pressure drop, trigger delay time, time to minimum pressure, and pressure time products (PTP) during trigger and the first 300 and 500 ms were analyzed. RESULTS: In the trigger evaluation, the Savina had the highest delay time, whereas the C2, the V60, and the Trilogy had the lowest pressure drops and PTP values in both effort levels. In pressurization capacity assessment using ideal PTP300 and PTP500 percentages, the C2 and the V680 had the best results, and the Carina and the Savina had lower values, with no differences between both effort levels. Differences between PEEP levels did not seem to be relevant. CONCLUSIONS: Pressure support mode for tested ventilators worked properly, but pressurization capacity and trigger function performance were clearly superior in the newest machines. The use of PEEP did not modify the results.
BACKGROUND: During recent years, ventilators using turbines as flow-generating systems have become increasingly more relevant. This bench study was designed to compare triggering and pressurization of 7 turbine mid-level ICU ventilators. METHODS: We used a dual-chamber lung model to test 7 mid-level ICU ventilators in pressure support mode with levels of 10, 15, and 20 cm H2O with 2 PEEP levels of 5 cm H2O and the minimum level allowed by the ventilator. A ventilator was connected to the master chamber to simulate 2 different effort levels. Pressure drop, trigger delay time, time to minimum pressure, and pressure time products (PTP) during trigger and the first 300 and 500 ms were analyzed. RESULTS: In the trigger evaluation, the Savina had the highest delay time, whereas the C2, the V60, and the Trilogy had the lowest pressure drops and PTP values in both effort levels. In pressurization capacity assessment using ideal PTP300 and PTP500 percentages, the C2 and the V680 had the best results, and the Carina and the Savina had lower values, with no differences between both effort levels. Differences between PEEP levels did not seem to be relevant. CONCLUSIONS: Pressure support mode for tested ventilators worked properly, but pressurization capacity and trigger function performance were clearly superior in the newest machines. The use of PEEP did not modify the results.
Authors: Jan Buytaert; Paula Collins; Adam Abed Abud; Phil Allport; Antonio Pazos Álvarez; Kazuyoshi Akiba; Oscar Augusto de Aguiar Francisco; Aurelio Bay; Florian Bernard; Sophie Baron; Claudia Bertella; Josef X Brunner; Themis Bowcock; Martine Buytaert-De Jode; Wiktor Byczynski; Ricardo De Carvalho; Victor Coco; Ruth Collins; Nikola Dikic; Nicolas Dousse; Bruce Dowd; Kārlis Dreimanis; Raphael Dumps; Paolo Durante; Walid Fadel; Stephen Farry; Antonio Fernàndez Prieto; Arturo Fernàndez Tèllez; Gordon Flynn; Vinicius Franco Lima; Raymond Frei; Abraham Gallas Torreira; Tonatiuh García Chàvez; Evangelos Gazis; Roberto Guida; Karol Hennessy; Andre Henriques; David Hutchcroft; Stefan Ilic; Artūrs Ivanovs; Aleksandar Jevtic; Emigdio Jimenez Dominguez; Christian Joram; Kacper Kapusniak; Edgar Lemos Cid; Jana Lindner; Rolf Lindner; M Ivàn Martínez Hernàndez; Mirko Meboldt; Marko Milovanovic; Sylvain Mico; Johan Morant; Michel Morel; Georg Männel; Dónal Murray; Irina Nasteva; Niko Neufeld; Igor Neuhold; Francisco Pardo-Sobrino López; Eliseo Pèrez Trigo; Gonzalo Pichel Jallas; Edyta Pilorz; Lise Piquilloud; Xavier Pons; David Reiner; Hector David Règules Medel; Saul Rodríguez Ramírez; Mario Rodíguez Cahuantzi; Carl Roosens; Philipp Rostalski; Freek Sanders; Eric Saucet; Marianne Schmid Daners; Burkhard Schmidt; Patrick Schoettker; Rainer Schwemmer; Heinrich Schindler; Archana Sharma; Derick Sivakumaran; Christophe Sigaud; Vasilios Spitas; Nicola Steffen; Peter Svihra; Guillermo Tejeda Muñoz; Nikolaos Tachatos; Efstratios Tsolakis; Jan van Leemput; Laurence Vignaux; Francois Vasey; Hamish Woonton; Ken Wyllie Journal: R Soc Open Sci Date: 2022-03-16 Impact factor: 2.963
Authors: Nikolaos Tachatos; Nicola Steffen; Mark Zander; Nikola Stankovic; Mirko Meboldt; Thomas O Erb; Jürg Hammer; Marianne Schmid Daners Journal: Front Med Technol Date: 2022-08-16
Authors: Cristina Lalmolda; Pablo Flórez; Marta Corral; Ana Hernández Voth; Carles Grimau; Javier Sayas; Manel Luján Journal: Int J Chron Obstruct Pulmon Dis Date: 2022-01-14