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Surgical Aspects of Corpus Callosotomy. Brain Sci 2021; 11:brainsci11121608. [PMID: 34942910 PMCID: PMC8699754 DOI: 10.3390/brainsci11121608] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/30/2021] [Accepted: 12/03/2021] [Indexed: 11/17/2022] Open
Abstract
Corpus callosotomy (CC) is one of the options in epilepsy surgeries to palliate patient seizures, and is typically applied for drop attacks. The mechanisms of seizure palliation involve disrupting the propagation of epileptic activity to the contralateral side of the brain. This review article focuses on the surgical aspects of CC. As a variations of CC, anterior two-thirds, posterior one-third, and total callosotomy are described with intraoperative photographs. As less-invasive surgical variations, recent progress in endoscopic CC, and CC without craniotomy, is described. CC remains acceptable under the low prevalence of complications, and surgeons should make the maximum effort to minimize the complication rate.
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Aftahy AK, Barz M, Wagner A, Liesche-Starnecker F, Negwer C, Meyer B, Gempt J. The interhemispheric fissure-surgical outcome of interhemispheric approaches. Neurosurg Rev 2020; 44:2099-2110. [PMID: 32852637 PMCID: PMC8338818 DOI: 10.1007/s10143-020-01372-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/14/2020] [Accepted: 08/17/2020] [Indexed: 01/10/2023]
Abstract
Exposure of the anterior skull base is challenging due to strategic structures. The interhemispheric approach (IHA) has turned out to be a feasible technique. We report our experience with IHAs in patients with extraaxial lesions (EAL). We performed a retrospective chart review at a tertiary neurosurgical center between April 2009 and March 2020. We included patients with resection of EAL through IHAs concentrating on surgical technique, complete resection rate, postoperative outcome, and complications. Seventy-four patients resected by an IHA were included: 49 (66.2%) frontal (FIA), nine (12.1%) parietooccipital (PIA), and 16 (21.6%) frontobasal IHAs (FBIAs). Median age at time of surgery was 59 years (range 16–88 years), 47 (63.5%) female and 27 (36.5%) male. Complete resection rate was 83.8% (FIA 89.8%, PIA 55.6%, FBIA 81.3%). Rate of new minor deficits was 17.6%, rate of major deficits 5.4%, total rate 23.0%. 51 (68.9%) WHO°I meningiomas, ten (13.5%) WHO°II meningiomas, two (2.7%) WHO°III meningiomas, nine (12.2%) metastases, one (1.4%) sarcoma, and one (1.4%) local adenocarcinoma were resected. Total complication rate was 27.0%. Rate of major complications requiring intervention was 9.6%. Mean follow-up was 34.2 (± 33.2) months. In patients with lesions of the interhemispheric fissure, overall morbidity and complications are comparatively high. Extensions of IHAs with potential even higher morbidity are not necessary though; we support the use of standardized IHAs. Our findings suggest regular usage of relatively feasible IHAs for a satisfying outcome. Invasive, complicated, or contralateral trajectories were not needed.
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Affiliation(s)
- A Kaywan Aftahy
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Melanie Barz
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Arthur Wagner
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Friederike Liesche-Starnecker
- Department of Neuropathology Klinikum rechts der Isar Institute of Pathology School of Medicine, Technical University Munich, Munich, Germany
| | - Chiara Negwer
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Jens Gempt
- Department of Neurosurgery, Klinikum rechts der Isar, School of Medicine, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany
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