Risk Factors for Rhinosinusitis After Endoscopic Transsphenoidal Adenomectomy.

Objective: Patients undergoing endoscopic transsphenoidal adenomectomy (eTSA) for pituitary tumors are at risk for postoperative complications, including rhinosinusitis. We aimed to determine if preoperative sinonasal disease is a risk factor for postoperative rhinosinusitis (PRS).

Study Design: Retrospective review.

Setting: Tertiary academic center in U.S.

Subjects And Methods: Patients with a diagnosis of pituitary adenoma who underwent eTSA between 2007-2016. PRS patients were matched to non-PRS patients or sex, age, tumor size, skull base reconstruction with intranasal tissue grafting, and concurrent septoplasty. Groups were statistically analyzed for potential preoperative risk factors of sinonasal disease (patient-reported, radiographic, endoscopic).

Results: 49 of 987 patients who underwent eTSA developed PRS (44.9% male, 71.4% Caucasian, mean age 49.3y). On analysis of individual risk factors, there was a significantly higher proportion of patients with a history of prior sinonasal surgery in the PRS group than the non-PRS group (25.5% vs. 6.5%, p = 0.01); however, this group difference became insignificant on multivariate analysis. There were no significant group differences with regard to history of sinus infections, nasal symptoms, seasonal allergies, radiographic abnormalities, or sinonasal disease on endoscopy.

Conclusion: This is the first study to investigate preoperative sinonasal disease as a risk factor for PRS after eTSA. The risk factors considered did not demonstrate definitive risk for PRS, although a history of prior sinonasal surgery should be investigated further.