Objective:
To analyze and find risk factors associated with the development of DI using a multicenter case series via TSE.
Materials and methods:
Medical records of patients who underwent TSS for PA resection between 2010-2021 at three different neurosurgical centers by four experienced neurosurgeons were retrospectively analyzed. The patients were divided into two groups (DI Group or Control Group). Logistic regression analysis was conducted to identify risk factors associated with postoperative DI. Univariate logistic regression was performed to identify variables of interest, and covariates with a p-value < 0.15 were incorporated into multivariate logistic regression models to identify independently associated risk factors for DI. All statistical tests were conducted using RStudio.
Results:
344 patients were included; 68% were women, the mean age was 46.5 years, and non-functioning adenomas were the most frequent (171, 49.7%). The mean tumor size was 20.3 mm. Covariates associated with postoperative DI were female gender, cavernous sinus invasion (left or bilateral), intraoperative CSF leak, endoscopic surgery, left preoperative visual field involvement, complete tumor resection, Knosp score of 2 and 4, and macroadenomas. Age was associated with a lower OR for postoperative DI. Multivariable model showed female gender (OR 3.34 CI 1.50-7.99, p=0.004) and intraoperative CSF leak (OR 3.25 CI 1.25-8.85, p=0.017) were found to be independently associated with higher OR of developing postoperative DI. Age was not shown to be a protective factor for DI (OR 0.97; CI: 0.94-1.00; p=0.038).
Conclusions:
The independent risk factors for the development of DI were female patients and intraoperative CSF leak.
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