METHOD FOR PREDICTION OF NOSE PERFORATION RISK IN ENDOSCOPIC ENDONASAL SURGICAL INTERVENTIONS Russian patent published in 2019 - IPC A61B6/03 A61B5/107 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to otolaryngology, and can be used for prediction of nose peritoneal roof perforation risk in endoscopic endonasal surgical interventions. Before endoscopic surgical interventions, a patient is examined by computer-tomography of paranasal sinuses in a standard coronary projection with 0.625 mm cut thickness or in an axial projection with 0.625 mm cut thickness followed by three-dimensional bone reconstruction. Depth of olfactory pits is measured from the line connecting the lateral edges of the grate plate to the lowest points of the olfactory pits. Measurements are carried out on a tomography workstation. Low position of nose cavity roof is diagnosed at depth of olfactory pores more than 11 mm. Mean position of nose cavity roof is diagnosed at depth of olfactory pits from 6 mm to 10.9 mm. High position of nose cavity roof is diagnosed at depth of olfactory pits less than 5.9 mm. In the horizontal plane of the meshed plate and high location of the nasal cavity roof, a low risk of nasal cavity perforation is predicted in endoscopic endonasal surgical interventions. In oblique, skew-horizontal position of plate plane plane and low location of nose cavity roof, high risk of perforation of nose cavity in endoscopic endonasal surgical interventions is predicted.

EFFECT: method provides prediction of cavity roof perforation risk in planning endoscopic endonasal surgical treatment in the patients with spontaneous ethmoidal nasolysis by evaluating the anatomical and topographical features of the structures of the latticed plate using computed tomography.

1 cl, 9 dwg, 1 ex