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Δευτέρα 29 Μαρτίου 2021

The Prognostic Variables Affecting the Frontal Sinusotomy Patency Outcome and How to Manage: A Prospective Study

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Abstract

Objectives

The study aimed to assess the factors affecting the frontal sinus patency after endoscopic frontal sinusotomy.

Design

A prospective cohort study

Setting

Tertiary centre hospital

Main outcome measures

Fifty patients with refractory chronic frontal sinusitis (83 operated frontal sinuses) had frontal sinusotomy and followed up for six months. Multiple operative factors were included; the type of the procedure, intraoperative sinus findings, degree of mucosal preservation, and middle turbinate stability. Other factors were also assessed, including smoking, the presence of allergic rhinitis, asthma, gastroesophageal reflux, and other associated medical comorbidities.

Results

The sinus patency success rate was 75.9%. There was a significant difference regarding the intraoperative anteroposterior sinus ostium diameter (5.36 ± 1.45 mm vs 8.88 ± 2.38 mm, p‐value: .001* in the failed group and the success group, respectively). There was a significant association between the patency outcome and the presence of associated medical comorbidities (P‐value: .001*), the presence of allergic rhinitis (P‐value: .001*), the degree of sinus mucosal preservation (P‐value: .012*), and the degree of middle turbinate stability (P‐value: .001*). The multivariate analysis showed that the intraoperative anteroposterior diameter of the sinus ostium, middle turbinate stability, and presence of allergic rhinitis were significant predictors (P‐value: .012*, .042*, and .013*, respectively).

Conclusion

Sinuses with anteroposterior ostium diameters less than 5.36 mm are more susceptible to restenosis. The flail middle turbinate increases the risk of postoperative middle meatus synechia and frontal sinus patency failure. The presence of allergic rhinitis has a negative impact on the patency outcome.

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