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Agreement between clinical and non-clinical digital manometer for assessing maximal respiratory pressures in healthy subjects


Autoři: Rodrigo Torres-Castro aff001;  Nicolás Sepúlveda-Cáceres aff001;  Rodrigo Garrido-Baquedano aff001;  Marisol Barros-Poblete aff001;  Matías Otto-Yáñez aff003;  Luis Vasconcello aff001;  Roberto Vera-Uribe aff001;  Homero Puppo aff001;  Guilherme Fregonezi aff004
Působiště autorů: Departmento de Kinesiología, Facultad de Medicina, Universidad de Chile, Santiago de Chile, Chile aff001;  Programa Nacional de Ventilación Mecánica No Invasiva, Ministerio de Salud, Santiago de Chile, Chile aff002;  Escuela de Kinesiología, Universidad Autónoma de Chile, Santiago de Chile, Chile aff003;  PneumoCardioVascular Lab, Departamento de Fisioterapia & Hospital Universitário Onofre Lopes - Empresa Brasileira de Serviços Hospitalares (EBSERH), Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, Brazil aff004
Vyšlo v časopise: PLoS ONE 14(10)
Kategorie: Research Article
prolekare.web.journal.doi_sk: https://doi.org/10.1371/journal.pone.0224357

Souhrn

Measurement of respiratory muscles strength such as maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) are used to detect, diagnose and treat respiratory weakness. However, devices used for these measurements are not widely available and are costly. Currently, the use of a digital manometer is recommended. In industry, several inexpensive devices are available, but these have not been validated for clinical use. Our objective was to determine the agreement between maximal respiratory pressures obtained with a clinical digital manometer and that with a non-clinical digital manometer in healthy volunteers. We assessed the height, weight, lung function, MIP, and MEP of healthy volunteers. To compare pressures obtained by each type of digital manometer, a parallel approach configuration was used. The agreement was measured with the Intraclass Coefficient Correlation (ICC) and the Bland-Altman plot. Twenty-seven participants (14 men) were recruited with a median age of 22 (range: 21–23) years. Each participant underwent three measurements to give a total of 81 measurements. The mean MIPs were 90.8 ± 26.4 (SEM 2.9) and 91.1 ± 26.4 (SEM 2.9) cmH2O for the clinical and non-clinical digital manometers, respectively. The mean MEPs were 113.8 ± 40.4 (SEM 4.5) and 114.5 ± 40.5 (SEM 4.5) cmH2O for the clinical and non-clinical digital manometers, respectively. We obtained an ICC of 0.998 (IC 0.997–0.999) for MIP and 0.999 (IC 0.998–0.999) for MEP. There is a high agreement in the values obtained for MIP and MEP between clinical and non-clinical digital manometers in healthy volunteers. Further validation at lower pressures and safety profiling among human subjects is needed.

Klíčová slova:

Pulmonology – Medical devices and equipment – Pulmonary function – Chronic obstructive pulmonary disease – Spirometry – Muscle analysis – Cardiac muscles – Transducers


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