PT - JOURNAL ARTICLE AU - Gonzalez-Bermejo, Jesus AU - Janssens, Jean-Paul AU - Rabec, Claudio AU - Perrin, Christophe AU - Lofaso, Frédéric AU - Langevin, Bruno AU - Carlucci, Annalisa AU - Lujan, Manel ED - TI - Framework for patient-ventilator asynchrony during long-term non-invasive ventilation AID - 10.1136/thoraxjnl-2018-213022 DP - 2019 Jul 01 TA - Thorax PG - 715--717 VI - 74 IP - 7 4099 - http://thorax.bmj.com/content/74/7/715.short 4100 - http://thorax.bmj.com/content/74/7/715.full SO - Thorax2019 Jul 01; 74 AB - Episodes of patient-ventilator asynchrony (PVA) occur during acute and chronic non-invasive positive pressure ventilation (NIV). In long-term NIV, description and quantification of PVA is not standardised, thus limiting assessment of its clinical impact. The present report provides a framework for a systematic analysis of polygraphic recordings of patients under NIV for the detection and classification of PVA validated by bench testing. The algorithm described uses two different time windows: rate asynchrony and intracycle asynchrony. This approach should facilitate further studies on prevalence and clinical impact of PVA in long-term NIV.