• Rev Bras Anestesiol · Sep 2011

    Can manual hyperinflation maneuvers cause aspiration of oropharyngeal secretions in patients under mechanical ventilation?

    • Armando Carlos Franco de Godoy, Carla de Oliveira Yokota, Izilda Ismênia Muglia Araújo, and Maria Isabel Pedreira de Freitas.
    • Hospital das Clínicas da Universidade Estadual de Campinas, Brazil. armandogodoy@ig.com.br
    • Rev Bras Anestesiol. 2011 Sep 1;61(5):556-60, 305-7.

    Background And ObjectivesTo evaluate whether manual hyperinflation maneuvers can cause aspiration of oropharyngeal secretions in patients under mechanical ventilation.MethodsAdult patients under mechanical ventilation in whom a dye was injected in the oropharyngeal cavity and had their tracheal secretion aspirated after 30 minutes (min) participated in this study. In the event of dye slid, the patient was eliminated. The other patients were divided in Control Group: patients in whom tracheal secretions were aspirated after 30, 60, 120, and 180 min, and Experimental Group: after 30 min, manual hyperventilation maneuvers were performed and secretions were aspirated on the established intervals.ResultsForty-three patients were enrolled in this study. In 13, dye slippage was observed after 30 min, before allocating them into two groups. In the remaining 29 patients, 226 secretion samples were collected. In only two samples the presence of dye in the secretion was observed after manual hyperinflation maneuvers in the experimental group.ConclusionManual hyperinflation maneuvers did not cause aspiration of oropharyngeal secretions in patients under mechanical ventilation.Copyright © 2011 Elsevier Editora Ltda. All rights reserved.

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