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Technic Of Specular EsophagoscopyCategory: INTRODUCTION OF THE ESOPHAGOSCOPE Source: A Manual Of Peroral Endoscopy And Laryngeal Surgery Recumbent patient. Boyce position. The larynx is to be exposed as in direct laryngoscopy, the right pyriform sinus identified, the tip of the speculum inserted therein, and gently insinuated to the cricopharyngeal constriction. Too great extension of the head is to be avoided--even slight flexion at the occipito-atloid joint may be found useful at times. Moderate anterior or upward traction pulls the cricoid away from the posterior pharyngeal wall and the lumen of the esophagus opens above a crescentic fold (the cricopharyngeus). The speculum readily slides over this fold and enters the cervical esophagus. In searching for foreign bodies in the esophagus the speculum has the disadvantage of limited length, so that should the foreign body move downward it could not be followed. Next: Complications Following Esophagoscopy Previous: Specular Esophagoscopy
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