-To describe oropharyngeal region anatomy and mechanism of swallowing.
-To review the indications and study protocol of videofluoroscopic evaluation of oropharyngeal swallowing.
-To illustrate normal and abnormal imaging findings in videofluoroscopic swallowing,
emphasizing diagnostic difficulties and differential diagnosis.
Oropharyngeal dysphagia is a frequent entity,
increasing incidence with aging,
as a comorbidity of many age-related diseases and their treatments.
The dynamic videofluoroscopic evaluation of oropharyngeal swallowing is the best technique for diagnosis.
It depicts the sequence of the fast process of swallowing,
and laryngeal phases as the bolus passes through the oral cavity into the cervical esophagus.
Not only diagnosis of a dysfunction can be made,
but also decissions on...
Findings and procedure details
1.- Normal anatomy of the oropharynx and normal mechanism of swallowing.
Anatomy Fig. 1 and Fig. 2 .
The pharynx extends from de nasal cavity to the upper esophageal sphincter at the crycopharyngeus muscle and is formed of inner circular and outer longitudinal layers of striated muscle.
Phases of swallowing. Fig. 3
Oral preparatory phase.
Foods enters in oral cavity,
and mastication causes bolus formation....
The dynamic videofluoroscopic evaluation of oropharyngeal swallowing (VFSS) is an easy,
well-tolerated and useful technique in the diagnosis of oropharyngeal dysphagia.
The radiologist should be familiar with technique,
normal and abnormal findings,
and possible manouvres that can improve swallowing safety and efficiency.
It is a multidisciplinary activity with a Radiologist trained to identify structural abnormalities and disease processes,
Azpeitia Arman1 (email@example.com)
Unidad Central de Radiodiagnóstico de la CAM: Hospital Infanta Leonor 1
Department of Otorhinolaryngology : Hospital Infanta Leonor2
Fluoroscopic evaluation of oropharyngeal dysphagia: anatomic,
and common etiologic factors.
Structural abnormalities of the pharynx.
In: Gore RM,
Textbook of gastrointestinal radiology,
NY: Saunders Elsevier,
A penetration aspiration scale.
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