Combined Transpetrosal Approach : 2-Dimensional Operative Video
Copyright © Congress of Neurological Surgeons 2023. All rights reserved..
INDICATIONS CORRIDOR AND LIMITS OF EXPOSURE: This approach is suitable for petroclival lesions medial to V cranial nerve that extend in both middle and posterior fossa. It provides multiple surgical corridors with minimal brain retraction.
ANATOMIC ESSENTIALS NEED FOR PREOPERATIVE PLANNING AND ASSESSMENT: Several critical neurovascular structures of the petrous bone are at risk during the approach. Meticulous reading of the preoperative images is fundamental. It is mandatory to perform a thin section computed tomography scan, an MRI, and, in case of petroclival meningiomas, a digital subtraction angiography.
ESSENTIAL STEPS OF THE PROCEDURE: In the first illustrative case, we present our current "mini-combined petrosectomy" with minimal drilling of the labyrinth. Positioning, skin incision, and craniotomy are illustrated in the video. Once all the important neurovascular structures are identified, we perform the anterior and the posterior petrosectomy, with preservation of the endolymphatic sac. We continue with dura mater opening and tentorium cutting. After tumor removal, we can appreciate an unique view of ipsilateral and contralateral cranial nerves, as well as pituitary stalk and major arteries.
PITFALLS/AVOIDANCE OF COMPLICATIONS: To avoid injuries to the main neurovascular structures, neuronavigation, neuromonitoring, and Doppler can be useful.
VARIANTS AND INDICATIONS FOR THEIR USE: The second illustrative case shows an extension of the combined petrosectomy to the anterior fossa, this made possible to perform a transsylvian approach for this giant sphenopetroclival meningioma. The patients consented to the procedure and to the publication of his/her images. Appropriate consent was obtained for the publication of the cadaveric images.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:26 |
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| Enthalten in: |
Operative neurosurgery (Hagerstown, Md.) - 26(2024), 4 vom: 01. März, Seite 470-471 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Jiang, Tingting [VerfasserIn] |
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| Links: |
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| Themen: |
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| Anmerkungen: |
Date Completed 18.03.2024 Date Revised 18.03.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1227/ons.0000000000001025 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
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| 520 | |a Copyright © Congress of Neurological Surgeons 2023. All rights reserved. | ||
| 520 | |a INDICATIONS CORRIDOR AND LIMITS OF EXPOSURE: This approach is suitable for petroclival lesions medial to V cranial nerve that extend in both middle and posterior fossa. It provides multiple surgical corridors with minimal brain retraction | ||
| 520 | |a ANATOMIC ESSENTIALS NEED FOR PREOPERATIVE PLANNING AND ASSESSMENT: Several critical neurovascular structures of the petrous bone are at risk during the approach. Meticulous reading of the preoperative images is fundamental. It is mandatory to perform a thin section computed tomography scan, an MRI, and, in case of petroclival meningiomas, a digital subtraction angiography | ||
| 520 | |a ESSENTIAL STEPS OF THE PROCEDURE: In the first illustrative case, we present our current "mini-combined petrosectomy" with minimal drilling of the labyrinth. Positioning, skin incision, and craniotomy are illustrated in the video. Once all the important neurovascular structures are identified, we perform the anterior and the posterior petrosectomy, with preservation of the endolymphatic sac. We continue with dura mater opening and tentorium cutting. After tumor removal, we can appreciate an unique view of ipsilateral and contralateral cranial nerves, as well as pituitary stalk and major arteries | ||
| 520 | |a PITFALLS/AVOIDANCE OF COMPLICATIONS: To avoid injuries to the main neurovascular structures, neuronavigation, neuromonitoring, and Doppler can be useful | ||
| 520 | |a VARIANTS AND INDICATIONS FOR THEIR USE: The second illustrative case shows an extension of the combined petrosectomy to the anterior fossa, this made possible to perform a transsylvian approach for this giant sphenopetroclival meningioma. The patients consented to the procedure and to the publication of his/her images. Appropriate consent was obtained for the publication of the cadaveric images | ||
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| 700 | 1 | |a Froelich, Sébastien |e verfasserin |4 aut | |
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