| Autor: |
Danize Aparecida Rizzetti, Janayna Rodembuch Borba Quadros, Bruna Esmerio Ribeiro, Letícia Callegaro, Aline Arebalo Veppo, Giulia Alessandra Wiggers, Franck Maciel Peçanha |
| Jazyk: |
English<br />Portuguese |
| Předmět: |
|
| Zdroj: |
Jornal Brasileiro de Pneumologia, Vol 43, Iss 6, Pp 409-415 |
| Druh dokumentu: |
article |
| ISSN: |
1806-3756 |
| DOI: |
10.1590/s1806-37562017000000088 |
| Popis: |
ABSTRACT Objective: To determine whether different levels of CPAP improve the lung volumes and capacities of healthy subjects immersed in water. Methods: This was a randomized clinical trial, conducted between April and June of 2016, involving healthy female volunteers who were using oral contraceptives. Three 20-min immersion protocols were applied: control (no CPAP); CPAP5 (CPAP at 5 cmH2O); and CPAP10 (CPAP at 10 cmH2O). We evaluated HR, SpO2, FVC, FEV1, the FEV1/FVC ratio, peak expiratory flow rate (PEFR), and FEF25-75%) at three time points: pre-immersion; 10 min after immersion; and 10 min after the end of each protocol. Results: We evaluated 13 healthy volunteers. The CPAP10 protocol reversed the restrictive pattern of lung function induced by immersion in water, maintaining pulmonary volumes and capacities for a longer period than did the CPAP5 protocol. Conclusions: When the hemodynamic change causing a persistent lung disorder, only the application of higher positive pressures is effective in maintaining long-term improvements in the pulmonary profile. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
