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Year : 2020  |  Volume : 15  |  Issue : 1  |  Page : 16-21

Preservation of the lenticulostriate arteries during insular glioma resection

Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, USA

Correspondence Address:
Michael George Zaki Ghali
Department of Neurosurgery, Houston Methodist Hospital, 6560 Fannin Street, Houston, TX 77030
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ajns.AJNS_146_18

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Insular gliomas represent 25% and 10% of low- and high-grade gliomas, respectively. Their resection proves challenging due to the intimate involvement of eloquent parenchyma and the lenticulostriate arteries (LSAs), limiting facility of achieving maximal safe resection. The majority of postoperative deficits following insular glioma resection is attributed to compromise of the LSAs. It is contemporaneously critical and challenging to preserve these vessels, given they are numerous and small, with an intraparenchymal course hidden from direct visualization during the operative intervention. A lesser degree of medially directed displacement of the LSAs predicts tumoral encasement of these vessels, which portends a decreased likelihood for achieving a gross total resection and increased probability of postoperative morbidity. Preservation of these vessels thus requires knowledge of their location during the entirety of the insular glioma resection and is facilitated by pre- and intra-operative imaging. Intraoperative real-time tracking, however, may prove rather challenging, especially with transcortical access. Conventional catheter digital subtraction angiography, computed tomographic angiography, magnetic resonance imaging and angiography, and three-dimensional ultrasound powered Doppler have proven effective modalities in assessing lenticulostriate position, and their use facilitates a greater extent of resection while minimizing the attendant morbidity consequent to LSA injury.

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