Full vs limited FESS tested in CRSwNP - Summary - MDSpire
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Full vs limited FESS tested in CRSwNP

  • By

  • Kathryn Wighton

  • August 19, 2026

  • 6 min

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Objective:

To compare the outcomes of full and limited functional endoscopic sinus surgery (FESS) in patients with uncontrolled chronic rhinosinusitis with nasal polyps (CRSwNP).

Approach:
  • Study Design: An open-label, randomized controlled trial (AirGOs Operative) conducted at two tertiary centers in Finland.
  • Participants: 97 patients aged 18 to 65 with severe, uncontrolled CRSwNP were randomized between October 2018 and October 2022.
  • Interventions: Full FESS involved extensive sinus surgery under general anesthesia, while limited FESS included less invasive procedures, often under local anesthesia.
  • Primary Outcome: Change in the 22-item Sino-Nasal Outcome Test (SNOT-22) scores at 12 and 24 months.
Key Findings:
  • Both full and limited FESS showed clinically meaningful improvements in SNOT-22 scores over 24 months.
  • The difference in improvement between the two groups did not reach the minimal clinically important difference.
  • Full FESS resulted in greater recovery from anosmia and lower nasal polyp scores compared to limited FESS.
Limitations:
  • Masking was not possible, potentially influencing reported outcomes.
  • Findings primarily applicable to patients with moderate to severe eosinophilic CRSwNP.
  • Short follow-up period of 24 months may not capture all treatment considerations.
Conclusion:

Full FESS was associated with greater recovery from anosmia and lower polyp burden, particularly in the first postoperative year.

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