• Matthew C Findlay, Richard Drexler, Majid Khan, Kyril L Cole, Arian Karbe, Roman Rotermund, Franz L Ricklefs, Jörg Flitsch, Timothy R Smith, John L Kilgallon, Jürgen Honegger, Isabella Nasi-Kordhishti, Paul A Gardner, Zachary C Gersey, Hussein M Abdallah, John A Jane, Alexandria C Marino, Ulrich J Knappe, Nesrin Uksul, Jamil A Rzaev, Evgeniy V Galushko, Ekaterina V Gormolysova, Anatoliy V Bervitskiy, SchroederHenry W SHWSDepartment of Neurosurgery, University Medicine Greifswald, Greifswald , Germany., Márton Eördögh, Marco Losa, Pietro Mortini, Rüdiger Gerlach, Apio C M Antunes, William T Couldwell, Karol P Budohoski, Robert C Rennert, Mohammed Azab, and Michael Karsy.
• Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City , Utah , USA.
• Neurosurgery. 2023 Oct 1; 93 (4): 794801794-801.

Background And ObjectivesThere is considerable controversy as to which of the 2 operating modalities (microsurgical or endoscopic transnasal surgery) currently used to resect pituitary adenomas (PAs) is the safest and most effective intervention. We compared rates of clinical outcomes of patients with PAs who underwent resection by either microsurgical or endoscopic transnasal surgery.MethodsTo independently assess the outcomes of each modality type, we sought to isolate endoscopic and microscopic PA surgeries with a 1:1 tight-caliper (0.01) propensity score-matched analysis using a multicenter, neurosurgery-specific database. Surgeries were performed between 2017 and 2020, with data collected retrospectively from 12 international institutions on 4 continents. Matching was based on age, previous neurological deficit, American Society of Anesthesiologists (ASA) score, tumor functionality, tumor size, and Knosp score. Univariate and multivariate analyses were performed.ResultsAmong a pool of 2826 patients, propensity score matching resulted in 600 patients from 9 surgery centers being analyzed. Multivariate analysis showed that microscopic surgery had a 1.91 odds ratio (OR) ( P = .03) of gross total resection (GTR) and shorter operative duration ( P < .01). However, microscopic surgery also had a 7.82 OR ( P < .01) for intensive care unit stay, 2.08 OR ( P < .01) for intraoperative cerebrospinal fluid (CSF) leak, 2.47 OR ( P = .02) for postoperative syndrome of inappropriate antidiuretic hormone secretion (SIADH), and was an independent predictor for longer postoperative stay (β = 2.01, P < .01). Overall, no differences in postoperative complications or 3- to 6-month outcomes were seen by surgical approach.ConclusionOur international, multicenter matched analysis suggests microscopic approaches for pituitary tumor resection may offer better GTR rates, albeit with increased intensive care unit stay, CSF leak, SIADH, and hospital utilization. Better prospective studies can further validate these findings as matching patients for outcome analysis remains challenging. These results may provide insight into surgical benchmarks at different centers, offer room for further registry studies, and identify best practices.Copyright © Congress of Neurological Surgeons 2023. All rights reserved.

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