Non-invasive method of diagnosing dysphagia in patients having a tracheostomy

摘要

The invention provides a save and non-invasive alternative to the traditional modified Evans blue dye test for dysphagia in intubated patients. The method employs direct application of dye to the tongue, in combination with a tracheal tube that provides suction in the subglottal region above the cuff. By keeping the cuff inflated, the aspiration of food and liquid, as used in the traditional test, is avoided entirely.