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. 2018 Apr;79(2):117-122.
doi: 10.1055/s-0037-1604363. Epub 2017 Aug 3.

Diabetes Insipidus following Endoscopic Transsphenoidal Surgery for Pituitary Adenoma

Abdulrazag M Ajlan  1   2 , Sarah Bin Abdulqader  3 , Achal S Achrol  1 , Yousef Aljamaan  4 , Abdullah H Feroze  1 , Laurence Katznelson  1   5 , Griffith R Harsh  1
Affiliations

Diabetes Insipidus following Endoscopic Transsphenoidal Surgery for Pituitary Adenoma

Abdulrazag M Ajlan et al. J Neurol Surg B Skull Base. 2018 Apr.

Abstract

Objectives Pituitary adenoma (PA), among the most commonly encountered sellar pathologies, accounts for 10% of primary intracranial tumors. The reported incidence of postoperative diabetes insipidus (DI) is highly variable. In this study, we report our experience with DI following endoscopic transsphenoidal surgery (TSS) for PAs, elucidating the risk factors of postoperative DI, the likelihood of long-term DI, and the impact of DI on the length of stay (LOS). Methods The study included 178 patients who underwent endoscopic resection of PAs. Early DI was defined as that occurring within the first postoperative week. The mean follow-up was 36 months. Long-term DI was considered as DI apparent in the last follow-up visit. Results Of the 178 patients included in the study, 77% of the tumors were macroadenomas. Forty-seven patients (26%) developed early DI. Long-term DI was observed in 18 (10.1%) of the full cohort. Age younger than 50 years was significantly associated with a higher incidence of long-term DI ( p = 0.02). Macroadenoma and gross total resection were significantly associated with higher incidence of early DI ( p = 0.05 and p = 0.04, respectively). The mean LOS was 4 days for patients with early postoperative DI and 3 days for those without it. Conclusion The reported incidence of postoperative DI is significantly variable. We identified age younger than 50 years a risk factor for developing long-term postoperative DI. Gross total surgical resection and tumor size (> 1 cm) were associated with development of early DI. Early DI increased the LOS on average by 1 day.

Keywords: diabetes insipidus; endoscopic transsphenoidal; pituitary adenoma; postoperative hypernatremia.

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Conflict of interest statement

Conflict of Interest None.

Figures

Fig. 1
Fig. 1
Incidence of diabetes insipidus (DI).
Fig. 2
Fig. 2
Length of hospital stay.
See this image and copyright information in PMC

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