• M Clarett, M F Andreu, I G Salvati, M C Donnianni, G S Montes, and M G Rodríguez.
• Unidad de Kinesiología, Departamento de Diagnóstico y Tratamiento, Hospital de Agudos Donación Francisco Santojanni, Buenos Aires, Argentina. Electronic address: martinclarett@yahoo.com.ar.
• Med Intensiva. 2014 Apr 1;38(3):133-9.

ObjectiveTo determine whether there are differences between subglottic pressure during swallowing with and without air insufflation via a subglottic catheter in tracheostomized patients.DesignA prospective, randomized cross-over study was made.SettingAdult Intensive Care Units.ParticipantsPatients requiring mechanical ventilation and tracheostomy with a subglottic catheter, and with tolerance to deflation of the balloon and a speaking valve placed over the opening of the tracheostomy tube.InterventionsSubglottic pressure was measured during swallowing of a thickened solution with and without the delivery of airflow through the subglottic catheter.Main VariableSubglottic pressure during swallowing.ResultsTwelve out of 14 patients showed higher subglottic pressure values during swallowing with air insufflation. Two patients showed no differences between both conditions. Median (Med) values of subglottic pressure for the first, second and third swallow were 5, 4 and 4.5 cmH2O (Med 4.5 cmH2O) without air insufflation, and 8, 5.5 and 7.5 cmH2O (Med 5.5 cmH2O) with air insufflation, respectively (Wilcoxon, Z=-3.078; p=.002).ConclusionIn a group of tracheostomized patients, air insufflation via a subglottic catheter increased subglottic pressure levels measured during swallowing.Copyright © 2012 Elsevier España, S.L. and SEMICYUC. All rights reserved.

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