• World Neurosurg · Apr 2022

    Multicenter Study

    Risk factors for cerebral infarction early after revascularization in children younger than 5 years of age with moyamoya disease.

    • Yoshio Araki, Kenji Uda, Kinya Yokoyama, Fumiaki Kanamori, Michihiro Kurimoto, Yoshiki Shiba, Takashi Mamiya, Masahiro Nishihori, Kazuhito Takeuchi, Kuniaki Tanahashi, Yuichi Nagata, Yusuke Nishimura, Sho Okamoto, Masaki Sumitomo, Takashi Izumi, and Ryuta Saito.
    • Department of Neurosurgery, Nagoya University Graduate School of Medicine, Showa-ku, Nagoya, Aichi, Japan. Electronic address: y.araki@med.nagoya-u.ac.jp.
    • World Neurosurg. 2022 Apr 1; 160: e220-e226.

    ObjectiveCerebral revascularization is necessary for pediatric patients younger than 5 years with moyamoya disease (MMD). However, they have a high risk of developing cerebral infarction early after surgery. This study aimed to analyze the risk factors for developing cerebral infarction among these patients.MethodsThe charts of 21 consecutive patients with MMD (39 surgeries) younger than 5 years who had undergone revascularization at our hospital were retrospectively analyzed. Because cerebral infarction occurring within 1 month after surgery was the primary end point, other clinical information was evaluated, including each surgical procedure. Multivariate analysis of the risk factors for postoperative cerebral infarction was performed.ResultsCerebral infarction occurred after 7 of 39 surgeries (17.9%). Of the 39 surgeries, 23 (59%) included direct and indirect combined revascularization. The incidence of cerebral infarction did not differ significantly between the combined (21.7%) and indirect (12.5%) groups (P = 0.46). Logistic regression showed no association between the revascularization procedure and the occurrence of cerebral infarction after surgery (P = 0.3). However, younger age at surgery was correlated with a higher risk of developing cerebral infarction in the early postoperative period (P = 0.05).ConclusionsNo differences were found in the risk of developing cerebral infarction early after surgery as a result of surgical procedures. However, younger patients had higher postoperative risk. Further multicenter research should examine this issue for young pediatric patients with moyamoya at high risk of developing cerebral infarction.Copyright © 2022 Elsevier Inc. All rights reserved.

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