Effect of the Passy-Muir Valve on aspiration in patients with tracheostomy.

Dettelbach MA, Gross RD, Mahlmann J, Eibling DE.

Head Neck. 1995 Jul-Aug;17(4):297-302.

Abstract

OBJECTIVE:

To assess potential benefit of a Passy-Muir Speaking Valve (PMV) in decreasing aspiration in patients with a tracheostomy.

BACKGROUND:

Many patients with tracheostomy exhibit clinically significant aspiration. It has been previously noted that aspiration can often be reduced or eliminated by plugging or removing the tracheostomy tube. Some patients, however, do not tolerate removal or plugging of their tracheostomy tube, which then leads to persistent aspiration. We postulated that a one-way speaking valve may restore more normal subglottic and glottic air flow and reduce aspiration.

METHODS:

Alert patients with a tracheostomy and clinical evidence of aspiration were eligible for study. Eleven patients with tracheostomy and known aspiration were studied with a modified barium swallow. Radiographic examination was used to evaluate the presence and amount of aspiration while patients swallowed both with and without a PMV in place on their tracheostomy tube.

RESULTS:

Aspiration was reduced (or eliminated) during swallowing in all 11 patients when they wore a PMV, when compared to swallowing with an open (unvalved) tube. This improvement was achieved with liquids, semisolids, and pureed consistencies.

CONCLUSION:

This study demonstrates that a Passy-Muir speaking valve facilitated swallow and reduced aspiration in patients with a tracheostomy and known aspiration.

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