Endonasal sinus surgery improves mucociliary transport in severe chronic sinusitis

Area of Science:

• Otolaryngology
• Respiratory Physiology

Background:

• Chronic sinusitis is a prevalent condition affecting sinonasal function.
• Impaired mucociliary clearance is a hallmark of chronic sinusitis.

Purpose of the Study:

• To evaluate the impact of microscopic endonasal sinus surgery on nasal mucociliary transport and ciliary beat frequency in chronic sinusitis patients.
• To compare postoperative outcomes in patients with and without recurrent sinusitis.

Main Methods:

• Prospective study of 22 chronic sinusitis patients undergoing microscopic endonasal sinus surgery.
• Assessment of nasal mucociliary transport using a modified saccharine test.
• Measurement of ciliary beat frequency of nasal respiratory cells via video interference contrast microscopy.

Main Results:

• Preoperatively, chronic sinusitis patients exhibited significantly lower ciliary beat frequency and prolonged nasal mucociliary transport time compared to normals.
• Postoperatively, nasal mucociliary transport time significantly improved in most patients without recurrent sinusitis.
• Ciliary beat frequency remained reduced post-surgery, and transport remained prolonged in patients with recurrent sinusitis.

Conclusions:

• Nasal mucociliary transport and ciliary beat frequency are impaired in chronic sinusitis.
• Microscopic endonasal sinus surgery can improve mucociliary transport, but ciliary function may remain suboptimal.
• Recurrent disease may be associated with persistent impaired mucociliary transport post-surgery.