Ultrasound Study of the Submentonian Musculature and Its Relationship in Dysphagia

The physical function variables will be analyzed through the Medical Research Council (MRC) and Functional Status Score (FSS), as well as swallowing function variables through the Volume-Viscosity Swallow (VVS-T) and Functional Oral Intake Scale scales. (FOIS) and Gugging Swallowing Screen (GUSS). The ecographic measurements will be made of the thickness and echogenicity of the submental and tonue muscles, as well as hyolaryngeal kinematics. These measurements will be performed 48 hours from the start of the orotracheal intubation episode, 7 days and 14 days of mechanical ventilation. To enable the correlation of clinical and ultrasound variables, one more independent measurement will be performed within the first 24 hours after authorization of oral tolerance in the patient.