METHOD FOR SURGICAL MANAGEMENT OF CHRONIC MAXILLARY SINUSITIS THROUGH PIRIFORM CREST BY MEANS OF CUTTERS Russian patent published in 2015 - IPC A61B17/24 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to otorhinolaryngology, and is applicable for the surgical management of chronic maxillary sinusitis. A piriform crest is hydroseparated under endotracheal anaesthesis. An incision extends from an attachment point from an anterior end of an inferior nasal concha to a base of an anterior nasal spine. Soft tissues are separated in the subperiosteal direction in an inferior nasal passage and from a facial wall of a maxillary sinus throughout 0.2-0.5 cm. An oval opening of 0.3-0.5 cm is formed in a facial and lateral wall of the maxillary sinus in the direction of 45 degrees. Cutters are used to enlarge the opening up to the attachment point of the anterior end of an inferior nasal concha. The sinus is inspected under control of an endoscope. Microinstruments are used to evacuate the pathological content from the sinus through the above opening. The symmetrical tissues are aligned. The incision is closed with 2 sutures. On the 2^nd and 4^th days, the sinus is irrigated. On the 7^th day, the stitches are taken out.

EFFECT: method enables increasing the quality of management, reducing the length of staying in hospital and the number of postoperative complications and recurrences, and also provides a wide approach to the maxillary sinus ensured by making a small incision within the piriform crest, using the cutters, inspecting the sinus by means of the endoscope, and evacuating the sinus content by means of the microinstruments.

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