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Povidone-Iodine Nasal Irrigation After Surgery for Chronic Rhinosinusitis

Effectiveness and Safety of Povidone-Iodine Irrigation for Postoperative Management of Chronic Rhinosinusitis

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07470242
Enrollment
48
Registered
2026-03-13
Start date
2021-10-13
Completion date
2023-08-07
Last updated
2026-03-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Rhinosinusitis

Keywords

Nasal Irrigation, Povidone-Iodine, Endoscopic Sinus Surgery, Mucomyst, Chronic Rhinosinusitis, povidone-iodine ototoxicity

Brief summary

This prospective randomized controlled trial evaluates the effectiveness and safety of different nasal irrigation solutions for postoperative care after endoscopic sinus surgery in patients with chronic rhinosinusitis. Patients undergoing endoscopic sinus surgery will be randomly assigned to receive nasal irrigation with normal saline, mucomyst, or diluted povidone-iodine solution for three months after surgery. Clinical outcomes, symptom scores, endoscopic findings, and potential ototoxic effects will be evaluated to compare the effectiveness and safety of these irrigation methods.

Detailed description

Chronic rhinosinusitis is a common inflammatory disease characterized by symptoms such as nasal obstruction, nasal discharge, facial pressure, and decreased sense of smell. Endoscopic sinus surgery (ESS) is often performed in patients whose symptoms do not improve with medical treatment. Postoperative nasal irrigation is widely used to promote mucosal healing and remove secretions in the nasal cavity and paranasal sinuses. Povidone-iodine has broad-spectrum antimicrobial activity and is commonly used as a disinfectant. It has been suggested that diluted povidone-iodine solution may improve postoperative wound healing and provide additional antimicrobial effects when used as a nasal irrigation solution. However, concerns exist regarding the potential ototoxicity of povidone-iodine if it enters the middle ear during irrigation. This prospective randomized controlled trial aims to evaluate the effectiveness and safety of nasal irrigation using normal saline, mucomyst, or diluted povidone-iodine solution after endoscopic sinus surgery in patients with chronic rhinosinusitis. Patients will receive nasal irrigation for three months after surgery. Clinical outcomes, symptom scores, endoscopic findings, and hearing-related tests including pure tone audiometry, tympanometry, and distortion product otoacoustic emissions will be evaluated to assess treatment effectiveness and potential ototoxicity.

Interventions

Postoperative nasal irrigation using normal saline solution for 3 months after endoscopic sinus surgery.

DRUGAcetylcysteine (Mucomyst) Nasal Irrigation

Postoperative nasal irrigation using acetylcysteine solution for 3 months after endoscopic sinus surgery.

DRUGPovidone-Iodine Nasal Irrigation

Postoperative nasal irrigation using diluted 0.5% povidone-iodine solution for 3 months after endoscopic sinus surgery.

Sponsors

Pusan National University Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Adult patients diagnosed with chronic rhinosinusitis * Patients who underwent endoscopic sinus surgery (ESS) * Patients who performed postoperative nasal irrigation for 3 months * Patients who completed the follow-up evaluation and agreed to participate in the study

Exclusion criteria

* History of chronic otitis media * Presence of otitis media with effusion at the time of evaluation * History of previous middle ear surgery * Known allergy to povidone-iodine * Incomplete follow-up data * Refusal to participate in the study

Design outcomes

Primary

MeasureTime frameDescription
Lund-Kennedy Endoscopic Score3 months after endoscopic sinus surgeryPostoperative sinonasal status evaluated by nasal endoscopy using the Lund-Kennedy endoscopic scoring system.
Hearing function assessed by pure tone audiometry (PTA)3 months after endoscopic sinus surgeryAssessment of hearing threshold to evaluate potential ototoxicity of nasal irrigation solutions.

Secondary

MeasureTime frameDescription
Sino-Nasal Outcome Test (SNOT-20) score3 months after endoscopic sinus surgeryPatient-reported sinonasal symptoms and disease-specific quality of life assessed using the Sino-Nasal Outcome Test-20 questionnaire.
Distortion Product Otoacoustic Emission (DPOAE)3 months after endoscopic sinus surgeryAssessment of hearing threshold to evaluate potential ototoxicity of nasal irrigation solutions.

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 14, 2026