Trumpet maneuver for visual and ct examination of the pyriform sinus and retrocricoid area

Abstract

The trumpet maneuver, a technique to inflate the hypopharynx with air, allows visualization of the pyriform sinuses and retrocricoid area during both fiberoptic examination and CT scanning. The technique is useful in delineating both normal and abnormal anatomy, and is especially useful in the evaluation of patients with hypopharyngeal symptoms in whom there is a low suspicion of anatomic disease. The methods, endoscopic photographs, and CT scan images are presented.

Recurrent acute thyroid swellings because of pyriform sinus fistula

“…Air fluid levels within the thyroid or surrounding soft tissues suggest abscess formation [11]. Furthermore, the use of the modified Valsalva maneuver either during the ultrasonography or CT scan makes use of air as an effective contrast agent for delineation of the pharyngo-thyroid communication [12]. Direct laryngoscopic visualization and cannulation of the sinus tract has been used as a diagnostic aid [3].…”

Novel laryngoscopic strategies to improve evaluation of the site and extent of primary hypopharyngeal tumours

“…13,14 However, these manoeuvres are not used in conventional CT scanning because laryngeal motion is not observed under direct vision, and the accuracy and dynamics of patients' actions are difficult to co-ordinate well with CT scanning. In contrast, laryngoscopy allows such procedures to be observed under direct vision, and the triple manoeuvre described above enables the various hypopharyngeal subsites to be fully exposed.…”

Clinical outcomes of transoral videolaryngoscopic surgery for hypopharyngeal and supraglottic cancer

“…In the pre-therapeutic evaluation, transnasal endoscopic observation is performed routinely with Valsalva maneuver and head torsion to gain a maximally expanded intraluminal view of the hypopharynx [35–37]. This method enables accurate visualization of tumor extension on the mucosal surface and detailed inspection of the hypopharynx for any other possible lesion down to the esophageal entrance (Fig.…”