BACKGROUND: Between 30 and 50% of patients with sinonasal polyposis (SNP) will require surgical treatment. OBJECTIVE: To determine the medium term risks and benefits of endonasal ethmoidectomy in SNP. METHOD: 132 cases of SNP have been retrospectively studied before and after endoscopic nasal surgery with a mean follow-up of 5 years. Functional symptoms and appearances on endoscopic examination were recorded on graded scales. Non-parametric statistical analyses for matched series were used in the assessment of data. RESULTS: Post-operative normalisation of nasal function was obtained in 62% of cases. Each of the four main nasal symptoms (nasal obstruction, rhinorrhoea, facial pain and anosmia) was improved (p = 0.001). Patients with associated asthma or ASA triad had higher scores for nasal obstruction and rhinorrhoea (Fisher's exact test; p < 0.02). The pre-operative clinical stage of SNP correlated neither with recurrence nor with functional outcomes (Fisher's exact test; p > 0.05). The requirement for steroid treatment of concurrent asthma was also reduced post-operatively (p = 0.001). The association with asthma and its level of treatment was not related to the frequency of recurrence of SNP (Chi2; p > 0.6). CONCLUSIONS: Functional outcomes for patients with SNP and asthma were significantly improved by endoscopic surgical treatment, even if the appearance of the nasal mucosa did not always return to normal.
BACKGROUND: Between 30 and 50% of patients with sinonasal polyposis (SNP) will require surgical treatment. OBJECTIVE: To determine the medium term risks and benefits of endonasal ethmoidectomy in SNP. METHOD: 132 cases of SNP have been retrospectively studied before and after endoscopic nasal surgery with a mean follow-up of 5 years. Functional symptoms and appearances on endoscopic examination were recorded on graded scales. Non-parametric statistical analyses for matched series were used in the assessment of data. RESULTS: Post-operative normalisation of nasal function was obtained in 62% of cases. Each of the four main nasal symptoms (nasal obstruction, rhinorrhoea, facial pain and anosmia) was improved (p = 0.001). Patients with associated asthma or ASA triad had higher scores for nasal obstruction and rhinorrhoea (Fisher's exact test; p < 0.02). The pre-operative clinical stage of SNP correlated neither with recurrence nor with functional outcomes (Fisher's exact test; p > 0.05). The requirement for steroid treatment of concurrent asthma was also reduced post-operatively (p = 0.001). The association with asthma and its level of treatment was not related to the frequency of recurrence of SNP (Chi2; p > 0.6). CONCLUSIONS: Functional outcomes for patients with SNP and asthma were significantly improved by endoscopic surgical treatment, even if the appearance of the nasal mucosa did not always return to normal.