3) Yanagisawa and his group also have stated that the ostium of the ethmoid bulla is often found in the hiatus semilunaris superior, but that it can also be found in the anterior or lateral wall of the bulla, the ethmoid infundibulum
, the hiatus semilunaris inferior, or the retrobullar recess.
It is orientated almost sagitally and runs from anterosuperior to posteroinferior and forms the medial border of the ethmoid infundibulum
The high success rate of both experienced and inexperienced XprESS users in this study confirms that transnasal access and dilation of the ethmoid infundibulum
and natural maxillary opening is repeatable without tissue removal when using the XprESS sinus balloon device.
The drainage pathway, or ostium, of a pneumatized uncinate process may open directly into the middle meatus, the ethmoid infundibulum
or, as seen in this patient, into the ethmoid sinus.
In the report titled, "Impact of chronic rhinosinusitis on work productivity through one-year follow-up after balloon dilation of the ethmoid infundibulum
," subjects reported the quantity, quality and timeliness of their work output was limited 33% of the time due to CRS, and significantly impacted their absentee rate.
Computed tomography (CT) of the sinuses revealed minimal findings, with only a slight clouding in the left ethmoid infundibulum
1 FinESS dilates the ethmoid infundibulum
, the main drainage pathway in the osteomeatal complex (OMC), with balloon dilation which preserves tissue, bone and ciliary function.
Therefore, it is important to remove any obstruction of the natural ostium of the maxillary sinus or the ethmoid infundibulum
The study demonstrated that direct access and balloon dilation of the maxillary sinus ostia and ethmoid infundibulum
under local anesthesia can be performed with little pain or bleeding and patients resume normal activity within 1-2 days.
The ethmoid bulla, the largest cell of the anterior ethmoid sinus, usually drains into the ethmoid infundibulum
Entellus Medical's treatment is designed to enlarge the maxillary sinus ostium and ethmoid infundibulum
Computed tomography (CT) of the sinuses demonstrated prominent Haller cells impinging on the ethmoid infundibulum
and the maxillary sinus outflow tracts (figure, A).