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Πέμπτη 4 Φεβρουαρίου 2021

Improvement of Pulmonary Function in Cystic Fibrosis Patients following Endoscopic Sinus Surgery

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Objective/Hypothesis

To compare pre‐and post‐operative pulmonary function relative to disease severity in cystic fibrosis (CF) patients following endoscopic sinus surgery (ESS).

Study Design

Retrospective chart review.

Methods

Patients with CF who underwent ESS between January 1996 and July 2018 were identified, with subsequent study exclusions based upon surgical indications or incomplete records. CF disease severity was based upon percentage predicted of forced expiratory volume in 1 second (%FEV1) with <40% considered severe disease, 40% to 70% as moderate disease, and >70% as mild disease. The changes in %FEV1 before and after ESS were examined using multivariable mixed‐effects models controlling for age, gender, genotype, medications, nutritional status, diabetes status, microbiology results, extent of surgery, and number of surgeries.

Results

A total of 427 surgeries were performed in 188 patients during the study period. Mean age at first ESS was 12.7 years (SD 6.0 years, range 4–38) and 54.8% were females. The effect of ESS varied by severity of lung disease. After surgery, %FEV1 increased by 8.1% (95% CI: 2.3, 13.9%) among patients with severe lung disease and by 3.0% (95% CI: 0.7, 5.2%) among patients with moderate disease. %FEV1 also increased by 7.3% (95% CI: 4.2, 10.5%) among patients with mild disease whose %FEV1 value was 70% to 80% at baseline. No improvement was observed in patients with a baseline %FEV1 >80%.

Conclusions

When controlling for important confounding factors, lung function improved following ESS among CF patients with severe and moderate disease and in select patients with mild disease. This improvement was sustained at 12 months following surgery.

Level of evidence

4 Laryngoscope, 2021

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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,

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