Single-stage versus two-stage resection for large anterior midline skull base meningiomas with bihemispheric peritumoral edema

Abstract Resection of large anterior midline skull base meningiomas with extensive peritumoral edema poses high risks due to postoperative edema decompensation leading to increased intracranial pressure. Initial craniectomy prevents intracranial pressure decompensation but requires secondary craniop...

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Main Authors: Lina-Elisabeth Qasem, Ali Al-Hilou, Jan Oros, Katharina J. Weber, Fee Keil, Daniel Jussen, Vincent Prinz, Volker Seifert, Peter Baumgarten, Gerhard Marquardt, Marcus Czabanka
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Language:English
Published: Nature Portfolio 2025-03-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-92516-5
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author Lina-Elisabeth Qasem
Ali Al-Hilou
Jan Oros
Katharina J. Weber
Fee Keil
Daniel Jussen
Vincent Prinz
Volker Seifert
Peter Baumgarten
Gerhard Marquardt
Marcus Czabanka
author_facet Lina-Elisabeth Qasem
Ali Al-Hilou
Jan Oros
Katharina J. Weber
Fee Keil
Daniel Jussen
Vincent Prinz
Volker Seifert
Peter Baumgarten
Gerhard Marquardt
Marcus Czabanka
author_sort Lina-Elisabeth Qasem
collection DOAJ
description Abstract Resection of large anterior midline skull base meningiomas with extensive peritumoral edema poses high risks due to postoperative edema decompensation leading to increased intracranial pressure. Initial craniectomy prevents intracranial pressure decompensation but requires secondary cranioplasty. This study compares single-stage osteoplastic craniotomy with tumor resection to a two-stage approach using bifrontal craniectomy, tumor resection and subsequent cranioplasty after edema recovery in a second surgical step. Patients with large anterior midline skull base meningiomas (> 50 mm) and extensive peritumoral edema were included. Group 1 underwent single-stage resection (2002–2016), while Group 2 had a two-stage approach (2012–2022). The primary outcome was the Karnofsky Performance Scale (KPS) at three months post-surgery. Secondary outcomes included preoperative KPS, KPS at discharge and last follow-up, ICU stay, hospital stay length and complication rates. A total of 25 patients were analyzed (Group 1: n = 9; Group 2: n = 16). Group 2 demonstrated significantly improved KPS at three months postoperatively (median KPS 70% vs. 50%; p = 0.0204) with a non-significant reduction in ICU stay (10 vs. 6.5 days; p = 0.3284). Although no significant differences were observed in KPS at discharge (Group 1: KPS 30% vs. Group 2: KPS 50%; p = 0.1829) or last follow-up (Group 1: KPS 60% vs. Group 2: KPS 80%; p = 0.1630), Group 2 patients required fewer postoperative interventions for complications unrelated to cranioplasty. Overall complication rates were comparable in both groups (Group 1: 67% vs. Group 2: 56%; p = 0.6274). Two-stage resection of large anterior midline skull base meningiomas with extensive edema provides superior clinical outcomes at three months postoperatively without increasing overall complication rates. These findings support the use of a two-stage surgical strategy for highly selected patients. However, further multicenter studies are warranted to validate these results in larger cohorts.
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spelling doaj-art-87e85581ccc149f199540b821c0a028f2025-08-20T02:59:24ZengNature PortfolioScientific Reports2045-23222025-03-0115111110.1038/s41598-025-92516-5Single-stage versus two-stage resection for large anterior midline skull base meningiomas with bihemispheric peritumoral edemaLina-Elisabeth Qasem0Ali Al-Hilou1Jan Oros2Katharina J. Weber3Fee Keil4Daniel Jussen5Vincent Prinz6Volker Seifert7Peter Baumgarten8Gerhard Marquardt9Marcus Czabanka10Center for Neurology and Neurosurgery, Department of Neurosurgery, Goethe University Frankfurt, University HospitalCenter for Neurology and Neurosurgery, Department of Neurosurgery, Goethe University Frankfurt, University HospitalCenter for Neurology and Neurosurgery, Department of Neurosurgery, Goethe University Frankfurt, University HospitalNeurological Institute (Edinger Institute), Department of Neuropathology, Goethe University Frankfurt, University HospitalDepartment of Neuroradiology, Goethe University Frankfurt, University HospitalCenter for Neurology and Neurosurgery, Department of Neurosurgery, Goethe University Frankfurt, University HospitalCenter for Neurology and Neurosurgery, Department of Neurosurgery, Goethe University Frankfurt, University HospitalCenter for Neurology and Neurosurgery, Department of Neurosurgery, Goethe University Frankfurt, University HospitalCenter for Neurology and Neurosurgery, Department of Neurosurgery, Goethe University Frankfurt, University HospitalCenter for Neurology and Neurosurgery, Department of Neurosurgery, Goethe University Frankfurt, University HospitalCenter for Neurology and Neurosurgery, Department of Neurosurgery, Goethe University Frankfurt, University HospitalAbstract Resection of large anterior midline skull base meningiomas with extensive peritumoral edema poses high risks due to postoperative edema decompensation leading to increased intracranial pressure. Initial craniectomy prevents intracranial pressure decompensation but requires secondary cranioplasty. This study compares single-stage osteoplastic craniotomy with tumor resection to a two-stage approach using bifrontal craniectomy, tumor resection and subsequent cranioplasty after edema recovery in a second surgical step. Patients with large anterior midline skull base meningiomas (> 50 mm) and extensive peritumoral edema were included. Group 1 underwent single-stage resection (2002–2016), while Group 2 had a two-stage approach (2012–2022). The primary outcome was the Karnofsky Performance Scale (KPS) at three months post-surgery. Secondary outcomes included preoperative KPS, KPS at discharge and last follow-up, ICU stay, hospital stay length and complication rates. A total of 25 patients were analyzed (Group 1: n = 9; Group 2: n = 16). Group 2 demonstrated significantly improved KPS at three months postoperatively (median KPS 70% vs. 50%; p = 0.0204) with a non-significant reduction in ICU stay (10 vs. 6.5 days; p = 0.3284). Although no significant differences were observed in KPS at discharge (Group 1: KPS 30% vs. Group 2: KPS 50%; p = 0.1829) or last follow-up (Group 1: KPS 60% vs. Group 2: KPS 80%; p = 0.1630), Group 2 patients required fewer postoperative interventions for complications unrelated to cranioplasty. Overall complication rates were comparable in both groups (Group 1: 67% vs. Group 2: 56%; p = 0.6274). Two-stage resection of large anterior midline skull base meningiomas with extensive edema provides superior clinical outcomes at three months postoperatively without increasing overall complication rates. These findings support the use of a two-stage surgical strategy for highly selected patients. However, further multicenter studies are warranted to validate these results in larger cohorts.https://doi.org/10.1038/s41598-025-92516-5Anterior skull base meningiomasMeningiomaOlfactory groove meningiomasPeritumoral edemaSkull base surgeryComplications
spellingShingle Lina-Elisabeth Qasem
Ali Al-Hilou
Jan Oros
Katharina J. Weber
Fee Keil
Daniel Jussen
Vincent Prinz
Volker Seifert
Peter Baumgarten
Gerhard Marquardt
Marcus Czabanka
Single-stage versus two-stage resection for large anterior midline skull base meningiomas with bihemispheric peritumoral edema
Scientific Reports
Anterior skull base meningiomas
Meningioma
Olfactory groove meningiomas
Peritumoral edema
Skull base surgery
Complications
title Single-stage versus two-stage resection for large anterior midline skull base meningiomas with bihemispheric peritumoral edema
title_full Single-stage versus two-stage resection for large anterior midline skull base meningiomas with bihemispheric peritumoral edema
title_fullStr Single-stage versus two-stage resection for large anterior midline skull base meningiomas with bihemispheric peritumoral edema
title_full_unstemmed Single-stage versus two-stage resection for large anterior midline skull base meningiomas with bihemispheric peritumoral edema
title_short Single-stage versus two-stage resection for large anterior midline skull base meningiomas with bihemispheric peritumoral edema
title_sort single stage versus two stage resection for large anterior midline skull base meningiomas with bihemispheric peritumoral edema
topic Anterior skull base meningiomas
Meningioma
Olfactory groove meningiomas
Peritumoral edema
Skull base surgery
Complications
url https://doi.org/10.1038/s41598-025-92516-5
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