Removal of nasal polyps in the middle meatus and superior turbinate region via the middle meatus and olfactory cleft, without opening the involved sinuses and without resection of diseased bone.

1. Complete opening of all sinuses
2. Resection of diseased mucosa and hyperplastic bone
3. Ethmoid skeletonization with middle turbinectomy
4. Draf IIb/III frontal dissection when indicated by CT severity.

The Nasal Congestion Score (NCS) is a patient-reported outcome measure that assesses the subjective severity of nasal congestion. The score ranges from a minimum of 0 to a maximum of 3, where 0 represents "No nasal congestion" and 3 represents "The most severe nasal congestion." A higher score indicates a worse outcome.

The Nasal Polyp Score (NPS) is an objective assessment tool, evaluated by a clinician, used to grade the size of nasal polyps. Each nasal cavity is scored separately on a scale from 0 to 4. The total score is the sum of the scores from both nostrils and ranges from a minimum of 0 to a maximum of 8. A higher score indicates larger nasal polyps and a worse outcome. The scoring criteria are as follows:

0: No polyps.

1. Small polyps in the middle meatus.
2. Polyps in the middle meatus reaching below the inferior border of the middle turbinate.
3. Large polyps reaching beyond the inferior border of the middle turbinate or with medial extension from the middle turbinate.
4. Polyps completely obstructing the nasal cavity.

The modified Lund-Kennedy (MLK) score is an objective endoscopic evaluation performed by a clinician. A higher score indicates a worse outcome. It scores nasal polyps, edema, and discharge (0-2 for each) per nostril. The total score ranges from 0 to 12, with a higher score indicating worse endoscopic status.

The Lund-Mackay CT scoring system is an objective radiological assessment. It evaluates the extent of opacification on sinus computed tomography (CT) scans in six anatomical regions per side: anterior ethmoid sinuses, posterior ethmoid sinuses, maxillary sinuses, sphenoid sinuses, frontal sinuses, and the ostiomeatal complex. Each region is scored from 0 (no abnormality) to 2 (complete opacification). The total score, which is the sum of scores from all regions across both sides, ranges from a minimum of 0 to a maximum of 24. A higher total score indicates greater disease severity.

We will provide patients with an olfactory questionnaire, asking them to respond to the following questions. Each question will have a corresponding score: 0 points for "strongly disagree," 1 point for "partially agree," 2 points for "incompletely agree," and 3 points for "strongly agree."

The questions include:

I feel my sense of smell has become much worse than before. Compared to before the onset of olfactory dysfunction, the taste of food has changed.

Sometimes I can smell unpleasant odors that others cannot detect. Some pleasant smells that others enjoy are unpleasant to me. My biggest issue is that, compared to before the onset of olfactory dysfunction, smells are perceived differently.

Due to changes in my sense of smell, I dine out less often than before. I worry that I will not be able to adapt to the changes in my sense of smell in the future.

Due to changes in my sense of smell, I feel more anxious than before. Changes in my sense of smell often make me feel angry.

Olfactory function was evaluated by the Sniffin' Sticks test, containing olfactory threshold (T), discrimination (D) and identification (I) tests . Score for the threshold test range between 1 and 16, while the scores of the other two tests range between 0 and 16. The results of the three tests were calculated as a total TDI score (range 1- 48), which was used to define functional anosmia (TDI ≤ 16), hyposmia (16 < TDI < 31), or normosmia (TDI ≥ 31). If the patients had only been assessed by the identification test, the I score was used to define functional anosmia (I ≤ 8), hyposmia (8 < I ≤ 11), or 113 normosmia (I > 11).