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Σάββατο 27 Ιανουαρίου 2018

Occipital artery to middle cerebral artery bypass in cases of unavailable superficial temporal artery.

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Occipital artery to middle cerebral artery bypass in cases of unavailable superficial temporal artery.

World Neurosurg. 2018 Jan 22;:

Authors: Hirano T, Mikami T, Suzuki H, Hirano T, Kimura Y, Komatsu K, Akiyama Y, Wanibuchi M, Mikuni N

Abstract
In neurosurgery, extracranial-to-intracranial (EC-IC) bypass surgery is necessary for patients who have undergone surgery in which the superficial temporal artery (STA) was already used for a different bypass procedure or was damaged. Here, we report our experience with EC-IC bypass using the occipital artery (OA) in cases in which the STA is unavailable, and discuss the technical considerations and pitfalls. Five patients with ischemic-onset moyamoya disease and atherosclerotic disease were included. Two patterns of skin incisions were planned according to the OA pathway and recipient artery location. In one method, a skin incision is made above the OA and a craniotomy is performed under this incision after OA dissection. In the other method, a skin incision is made above the OA to enable its dissection and a craniotomy is performed via a separate skin incision. No major perioperative complications developed in any of the five cases, and bypass patency was confirmed in all patients. There was a significant difference between the pre- and postoperative asymmetry ratio of the mean transit time values. OA-to- middle cerebral artery (MCA) bypass is a simple and effective method in patients in whom the STA was already used or was damaged by previous intracranial revascularization or a craniotomy. This procedure could be an alternative to STA-MCA bypass in patients without an available STA.

PMID: 29371165 [PubMed - as supplied by publisher]



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