SURGICAL APPROACH TO THALAMIC CAVERNOUS MALFORMATIONS

Introduction Thalamus is a high eloquent brain region, because it contains important relay nucleus and is surrounded by vital neural and vascular structures. Cavernous malformations involving deep structures such as the basal ganglia and thalamus account for 5–10% of all cerebral cavernomas and...

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Main Authors: Claudiu Matei, Dan Filip, Iulia Dancu, Sofia Nistor, Joseph Gherman
Format: Article
Language:English
Published: London Academic Publishing 2024-11-01
Series:Romanian Neurosurgery
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Online Access:http://journals.lapub.co.uk/index.php/roneurosurgery/article/view/2832
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author Claudiu Matei
Dan Filip
Iulia Dancu
Sofia Nistor
Joseph Gherman
author_facet Claudiu Matei
Dan Filip
Iulia Dancu
Sofia Nistor
Joseph Gherman
author_sort Claudiu Matei
collection DOAJ
description Introduction Thalamus is a high eloquent brain region, because it contains important relay nucleus and is surrounded by vital neural and vascular structures. Cavernous malformations involving deep structures such as the basal ganglia and thalamus account for 5–10% of all cerebral cavernomas and can cause devastating neurological deficits. Surgical approach to thalamic cavernomas is associated with risks of new or worsening neurologic deficits. The benefit of surgery must be carefully weighed on an individualized basis. There are several surgical routes that can be used to approach thalamic lesions, mainly transcortical and interhemispheric approaches. A particular approach should be selected based on the location of the cavernoma in the thalamus to minimize lesion of the unaffected brain.   Methods We present the case of a 43-year-old right-handed lady with right bleeding posterolateral thalamic cavernoma, admitted to the neurosurgery department of Sibiu MedLife Polisano Hospital in February 2024. The patient underwent surgery, through a transcortical trans-sulcal para-fascicular, navigation guided approach. Preoperative tractography imaging, tubular cerebral corridor retractor system and intraoperative monitoring of the cortico-spinal tract, through motor evoked potentials (transcortical, cortical and subcortical mapping) and of the spinotahamic tract through somatosensory evoked potentials were used. The postoperative course was uneventful and the patient was discharged on the 7th postoperative day.   Conclusions Thalamus is a complex structure located in a deep brain area and surgery for these region carries high risks, so the surgeon must carefully tailor these patients. The transcortical transsulcal para-fascicular approach is feasible and safe using the cerebral tubular corridor, neuronavigation and neuromonitoring. Advanced surgical technology offers the advantages of minimizing the risks of new neurological deficits.
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spelling doaj-art-29a759b7c3a443d4b3a4fe0ca6b2e0f82024-11-14T15:47:07ZengLondon Academic PublishingRomanian Neurosurgery1220-88412344-49592024-11-0138Special Issue10.33962/roneuro-2024-107SURGICAL APPROACH TO THALAMIC CAVERNOUS MALFORMATIONSClaudiu MateiDan FilipIulia DancuSofia NistorJoseph Gherman Introduction Thalamus is a high eloquent brain region, because it contains important relay nucleus and is surrounded by vital neural and vascular structures. Cavernous malformations involving deep structures such as the basal ganglia and thalamus account for 5–10% of all cerebral cavernomas and can cause devastating neurological deficits. Surgical approach to thalamic cavernomas is associated with risks of new or worsening neurologic deficits. The benefit of surgery must be carefully weighed on an individualized basis. There are several surgical routes that can be used to approach thalamic lesions, mainly transcortical and interhemispheric approaches. A particular approach should be selected based on the location of the cavernoma in the thalamus to minimize lesion of the unaffected brain.   Methods We present the case of a 43-year-old right-handed lady with right bleeding posterolateral thalamic cavernoma, admitted to the neurosurgery department of Sibiu MedLife Polisano Hospital in February 2024. The patient underwent surgery, through a transcortical trans-sulcal para-fascicular, navigation guided approach. Preoperative tractography imaging, tubular cerebral corridor retractor system and intraoperative monitoring of the cortico-spinal tract, through motor evoked potentials (transcortical, cortical and subcortical mapping) and of the spinotahamic tract through somatosensory evoked potentials were used. The postoperative course was uneventful and the patient was discharged on the 7th postoperative day.   Conclusions Thalamus is a complex structure located in a deep brain area and surgery for these region carries high risks, so the surgeon must carefully tailor these patients. The transcortical transsulcal para-fascicular approach is feasible and safe using the cerebral tubular corridor, neuronavigation and neuromonitoring. Advanced surgical technology offers the advantages of minimizing the risks of new neurological deficits. http://journals.lapub.co.uk/index.php/roneurosurgery/article/view/2832cavernomaneuronavigationsubcortical mappingmotor evoked potentialtubular retractor
spellingShingle Claudiu Matei
Dan Filip
Iulia Dancu
Sofia Nistor
Joseph Gherman
SURGICAL APPROACH TO THALAMIC CAVERNOUS MALFORMATIONS
Romanian Neurosurgery
cavernoma
neuronavigation
subcortical mapping
motor evoked potential
tubular retractor
title SURGICAL APPROACH TO THALAMIC CAVERNOUS MALFORMATIONS
title_full SURGICAL APPROACH TO THALAMIC CAVERNOUS MALFORMATIONS
title_fullStr SURGICAL APPROACH TO THALAMIC CAVERNOUS MALFORMATIONS
title_full_unstemmed SURGICAL APPROACH TO THALAMIC CAVERNOUS MALFORMATIONS
title_short SURGICAL APPROACH TO THALAMIC CAVERNOUS MALFORMATIONS
title_sort surgical approach to thalamic cavernous malformations
topic cavernoma
neuronavigation
subcortical mapping
motor evoked potential
tubular retractor
url http://journals.lapub.co.uk/index.php/roneurosurgery/article/view/2832
work_keys_str_mv AT claudiumatei surgicalapproachtothalamiccavernousmalformations
AT danfilip surgicalapproachtothalamiccavernousmalformations
AT iuliadancu surgicalapproachtothalamiccavernousmalformations
AT sofianistor surgicalapproachtothalamiccavernousmalformations
AT josephgherman surgicalapproachtothalamiccavernousmalformations