TY - JOUR T1 - Comparison between maximal respiratory pressures obtained from digital and analog manovacuometers in 120 Brasilian patients with lung disease JF - European Respiratory Journal JO - Eur Respir J VL - 44 IS - Suppl 58 SP - P4284 AU - Ivete Alonso Bredda Saad AU - Bárbara Portela Santos AU - Carolina Paganini AU - Eduarda Lazari Guidetti AU - Yasmim Bastos da Silva AU - Ivan Felizardo C Toro AU - Lair Zambon Y1 - 2014/09/01 UR - http://erj.ersjournals.com/content/44/Suppl_58/P4284.abstract N2 - Introduction: Respiratory muscle strength can be evaluated by static measurements of maximal inspiratory pressure (MIP), and maximal expiratory pressures (MEP) through a mouthpiece. Due to many types of digital and analog manovacuometers it is necessary to assess the equivalence of values. Objective: To assess the agreement between devices and to compare them against the predicted values for the healthy population. Method: A prospective and cross-sectional study assessed 120 patients with lung disease using digital (MVD 300 GlobalMed®) and analog (Commercial Medical®) manovacuometers. Patients were evaluated with both devices. Measures were analyzed in each test and the results were compared with predicted values in the literature. Results: The mean MIP of digital and analog manovacuometers were -72.6 (SD±26.5) and -71.0(SD±25.2); MEP 93.6(± 34.5) and 87.4 (±26.6).There was an agreement in MIP and MEP between the devices evaluated. According to the intraclass correlation coefficient (ICC), MIP (ICC=0.876) obtained a higher value than MEP (ICC=0.781). There was no significant difference in values for MIP (p= 0.297) obtained with both devices but there was a significant difference for MEP (p=0.000). The analog MEP was lower than digital MEP in 72 patients. We found a good agreement between the devices when classifying the values below or above the predicted range, (Kappa = 0.677 to 0.535 for MIP and MEP). Conclusion: There is an agreement between digital and analog manovacuometers. There was no statistical difference in MIP evaluation. There was an agreement in measures when classified by predicted values. ER -