• World Neurosurg · Oct 2024

    Comparative Study

    Anatomical Differences In Sphenoid Sinus During Endoscopic Trans-Sphenoidal Surgery: Comparison Between Non-Functioning PiTNET And GH-Secreting PiTNET.

    • Enrico Lo Bue, Alessandro Pesaresi, Paola Lacroce, Irene Portonero, Alice Antico, Raffaele De Marco, Diego Garbossa, Federica Penner, and Francesco Zenga.
    • Department of Neuroscience "Rita Levi Montalcini", University of Turin, Turin, Italy; Skull Base and Pituitary Surgery Unit, "Città della Salute e della Scienza" University Hospital, Turin, Italy.
    • World Neurosurg. 2024 Oct 1; 190: e701e706e701-e706.

    BackgroundIn surgical practice during endoscopic endonasal approach, growth hormone-secreting pituitary neuroendocrine tumor (GH-secreting PitNET) patients show morphologic differences in the nasal cavities and sinuses, leading to a narrower surgical field and a carotid prominence and potentially increasing the complexity of the surgical and the risk of complications. The aim of the study is to evaluate the anatomical differences of the sphenoid sinus between patients with GH-secreting PitNETs and patients with nonfunctioning pituitary neuroendocrine tumor (NF-PitNET) who underwent endoscopic endonasal approach.MethodsThis is a monocentric retrospective study conducted at the author's institution. The minimum intercarotid distance, the largest diameter of the sphenoid sinus (DSS), and the distance between vomer and clivus (VCD) were collected and compared. Presence, localization, and course of intersphenoid sinus septum were also evaluated.ResultsOne hundred consecutive patients were identified: 57 males (57%) and 43 females (43%), with a mean age of 55 years. Sixty patients had NF-PitNET (60%) and 40 had GH-secreting PitNET (40%). GH-secreting PitNET group presented inferior values of intercarotid distance (16.8 ± 3.94 mm vs. 20.4 ± 3.94 mm, P < 0.001), DSS (32.5 ± 9.81 mm vs. 38.6 ± 11.03 mm, P = 0.006), and VCD (25.5 ± 6.96 mm vs. 29.6 ± 8.47 mm, P = 0.012) compared to NF-PitNET group. Intersphenoid sinus septum showed no differences between the 2 groups.ConclusionsIntercarotid distance, DSS, and VCD resulted smaller in acromegalic patients, confirming that patients with GH-secreting PitNETs have a narrower surgical field. A meticulous anatomical preoperative planning and neuronavigation are important to recognize the sphenoid anatomical landmarks in order to reduce the risk of complications, especially in acromegalic patients.Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.

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