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Start Over Author "Morita, Akio" Publisher japan neurosurgical society
91 results on '"Morita, Akio"'

7. Neurointensive Care of Traumatic Brain Injury Patients Based on Coagulation and Fibrinolytic Parameter Monitoring

Author

NAKAE, Ryuta, primary, MURAI, Yasuo, additional, TAKAYAMA, Yasuhiro, additional, NAMATAME, Kaoru, additional, MATSUMOTO, Yoshiyuki, additional, KANAYA, Takahiro, additional, FUJIKI, Yu, additional, ONDA, Hidetaka, additional, SUZUKI, Go, additional, KANEKO, Junya, additional, ARAKI, Takashi, additional, NAOE, Yasutaka, additional, SATO, Hidetaka, additional, UNEMOTO, Kyoko, additional, MORITA, Akio, additional, YOKOTA, Hiroyuki, additional, and YOKOBORI, Shoji, additional

Published
2022
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19. Characteristics of Cerebral Aneurysms in Japan

Author

IKAWA, Fusao, primary, HIDAKA, Toshikazu, additional, YOSHIYAMA, Michitsura, additional, OHBA, Hideo, additional, MATSUDA, Shingo, additional, OZONO, Iori, additional, IIHARA, Koji, additional, KINOUCHI, Hiroyuki, additional, NOZAKI, Kazuhiko, additional, KATO, Yoko, additional, MORITA, Akio, additional, MICHIHATA, Nobuaki, additional, YASUNAGA, Hideo, additional, and KURISU, Kaoru, additional

Published
2019
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20. Pedicle Galeo-pericranial Flap Augmentation in Salvage Frontotemporal Cranioplasty: Additional ‘Neurosurgeon-friendly’ Reconstruction Technique of Aesthetic Neurosurgery in Superficial Temporal Artery Branch Compromised Host

Author

TAKUMI, Ichiro, primary, AKIMOTO, Masataka, additional, HIRONAKA, Kouhei, additional, ADACHI, Koji, additional, KON, Takashi, additional, MATSUMORI, Takashi, additional, TANAKA, Yuichiro, additional, and MORITA, Akio, additional

Published
2018
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35. Atlantoaxial Intraspinal Juxtafacet Cyst

Author

SAMESHIMA, Tetsuro, primary, SHIBAHASHI, Keita, additional, NOZAKI, Toshiki, additional, AKABANE, Atsuya, additional, KIHARA, Atsushi, additional, HORIUCHI, Hajime, additional, and MORITA, Akio, additional

Published
2013
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47. Porencephaly

Author

MATSUMAE, Mitsunori, primary, YOSHIOKA, Masumi, additional, MURAOKA, Isao, additional, MORITA, Akio, additional, MANNEN, Toru, additional, KAKU, Shin, additional, and TSUBAI, Fumiyo, additional

Published
1989
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49. Distal Endovascular Occlusion for Incomplete Occlusion of Cavernous Carotid Aneurysms after High-flow Bypass and Cervical Internal Carotid Artery Ligation.

Author

Ideguchi M, Kim K, Mizunari T, Koketsu K, Kominami S, and Morita A

Subjects
Humans, Carotid Artery, Internal diagnostic imaging, Carotid Artery, Internal surgery, Treatment Outcome, Ligation, Neurosurgical Procedures methods, Intracranial Aneurysm diagnostic imaging, Intracranial Aneurysm surgery, Carotid Artery Diseases diagnostic imaging, Carotid Artery Diseases surgery, Thrombosis, Cerebral Revascularization methods
Abstract

Internal carotid artery (ICA) ligation for placing a high-flow extracranial-intracranial (EC-IC) bypass is used in patients with aneurysms on the cavernous portion of the ICA. Recanalization and rupture after proximal ICA ligation can occur. We present four patients who underwent endovascular distal ICA occlusion and report our surgical technique and treatment results. We ligated the ICA to place an EC-IC bypass using a radial artery (RA) graft. Failure to obtain spontaneous occlusion in the distal region required endovascular treatment an average of 219 days later. A guide catheter was placed in the common carotid artery, a guide or distal access catheter was introduced in the RA graft from the external carotid artery, and a microcatheter was navigated into the cavernous aneurysm through the RA graft. Using detachable coils, endovascular ICA occlusion was from just distal to the aneurysmal neck to a site proximal to the origin of the ophthalmic artery. Aneurysmal occlusion was completed by endovascular occlusion of the distal ICA. Complications were RA graft stenosis and transient consciousness disturbance due to local subarachnoid hemorrhage. Outpatient follow-up for a mean of 109.5 months revealed no recurrences. Distal occlusion of the ICA through the implanted RA graft is simple and presents a low risk for cerebral infarction due to thrombus formation during the procedure. To treat cavernous carotid aneurysms that do not disappear after placing the EC-IC bypass after ICA ligation at the aneurysmal neck, we offer our procedure as a treatment option.

Published
2023
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50. The Japan Neurosurgical Database: Statistics Update 2018 and 2019.

Author

Iihara K, Saito N, Suzuki M, Date I, Fujii Y, Houkin K, Inoue T, Iwama T, Kawamata T, Kim P, Kinouchi H, Kishima H, Kohmura E, Kurisu K, Maruyama K, Matsumaru Y, Mikuni N, Miyamoto S, Morita A, Nakase H, Narita Y, Nishikawa R, Nozaki K, Ogasawara K, Ohata K, Sakai N, Sakamoto H, Shiokawa Y, Takahashi JC, Ueki K, Wakabayashi T, Yoshimoto K, Arai H, and Tominaga T

Subjects
Humans, Japan epidemiology, Neurosurgical Procedures, Tissue Plasminogen Activator, Intracranial Aneurysm, Stroke
Abstract

Each year, the Japan Neurosurgical Society (JNS) reports up-to-date statistics from the Japan Neurosurgical Database regarding case volume, patient demographics, and in-hospital outcomes of the overall cohort and neurosurgical subgroup according to the major classifications of main diagnosis. We hereby report patient demographics, in-hospital mortality, length of hospital stay, purpose of admission, number of medical management, direct surgery, endovascular treatment, and radiosurgery of the patients based on the major classifications and/or main diagnosis registered in 2018 and 2019 in the overall cohort (523283 and 571143 patients, respectively) and neurosurgical subgroup (177184 and 191595 patients, respectively). The patient demographics, disease severity, proportion of purpose of admission (e.g., operation, 33.9-33.5%) and emergent admission (68.4-67.8%), and in-hospital mortality (e.g., cerebrovascular diseases, 6.3-6.5%; brain tumor, 3.1-3%; and neurotrauma, 4.3%) in the overall cohort were comparable between 2018 and 2019. In total, 207783 and 225217 neurosurgical procedures were performed in the neurosurgical subgroup in 2018 and 2019, respectively, of which endovascular treatment comprised 19.1% and 20.3%, respectively. Neurosurgical management of chronic subdural hematoma (19.4-18.9%) and cerebral aneurysm (15.4-14.8%) was most common. Notably, the proportion of management of ischemic stroke/transient ischemic attack, including recombinant tissue plasminogen activator infusion and endovascular acute reperfusion therapy, increased from 7.5% in 2018 to 8.8% in 2019. The JNS statistical update represents a critical resource for the lay public, policy makers, media professionals, neurosurgeons, healthcare administrators, researchers, health advocates, and others seeking the best available data on neurosurgical practice.

Published
2021
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