Efficacy of Two Interventions Increasing Sensory Stimulus in Elderly Patients With Oropharyngeal Dysphagia

Using a device which gives electrical stimulation, electrodes will be placed transcutaneously in oropharyngeal muscles of patients giving a sensorial stimuli during one hour for 5 days/week during 2 weeks of treatment.

Patient will be given a TRPV1 agonist natural product (which contains capsaicin) before every meal, during one hour for 5 days/week during 2 weeks of treatment.