RT Journal Article SR Electronic T1 Efficacy assessement of home mechanical ventilation: Comparison of ventilator software data with home respiratory poligraphy (pilot study) JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1977 VO 42 IS Suppl 57 A1 Joaquim Moreira A1 Célia Freitas A1 Tiago Pinto A1 Miguel Gonçalves A1 Anabela Marinho A1 Marta Drummond A1 João Carlos Winck YR 2013 UL http://erj.ersjournals.com/content/42/Suppl_57/1977.abstract AB Background. Domiciliary bi-level ventilators have specific software that estimates residual Apnea-Hypopnea Index (AHI). The accuracy of this data is important to achieve optimal ventilatory parameters.Objectives. Compare the residual AHI from the software of ventilator with the residual AHI obtained by a Domiciliary Respiratory Poligraphy (DRP) in patients with Chronic Respiratory Failure (CRF).Methods. Patients newly diagnosed with CRF and eligible for Home Mechanical Ventilation (HMV) were included. All patients were treated with BiPAP A30 (Phillips Respironics®). By 3rd month all performed DRP (Alice 5, Phillips Respironics®, 10 channels, including z-Rip (Pro-Tech) and TcCO2 (Sentec®)). The residual AHI obtained from the ventilator software (EncoreAnywhere, Phillips Respironics®) was compared with the residual AHI from DRP reviewed manually.Results. Data is presented as median (per 25-75). 16 patients were studied, 9 (56,25%) with restrictive disease and 7 (43,75%) with obstructive disease with a FVC of 68,5 (50-81,1)%, FEV1 of 57,9 (28,3-73)%, PaCO2 of 51,1 (45,4-59,5) mmHg, PaO2 of 63,5 (56,2-71,5) mmHg. SpO2 of 93,5 (91,7-95,3)%. Measured by the DRP baseline AHI improved in all patients (18 (7,8-50,8) vs 2,9 (0,9-8,1), p<0,01) /h. When compared with residual AHI of ventilator software 3,4 (0,8-5,5) /h no significant differences were found (p=0,5).Conclusion. Although further research is warranted, the results of this pilot study suggest that the AHI obtained by the ventilator software can be used to achieve optimal ventilatory parameters in patients with CRF of varying severity.