著者

Nobuo SUGO Sayaka TERAZONO Chie MATSUURA Yutaka FUCHINOUE Yuki SAKAEYAMA Mitsuyoshi ABE Masataka MIKAI Syuhei KUBOTA Kosuke KONDO Shoko SHIMOKAWA Taketoshi MAEHARA Hiroyoshi AKUTSU Fusao IKAWA Yukiko ENOMOTO Kazuko KAMIYA Satoshi KURODA Hideo TAKESHIMA Noriko TAMURA Tomohito HISHIKAWA Masazumi FUJII Takamitsu FUJIMAKI Tetsuyoshi HORIUCHI Junkoh YAMAMOTO Tetsuya YAMAMOTO Yoko KATO

出版者

The Japan Neurosurgical Society

雑誌

Neurologia medico-chirurgica (ISSN:04708105)

巻号頁・発行日

pp.2023-0051, (Released:2023-07-25)

参考文献数

26

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This study aims to evaluate the academic activities of female neurosurgeons at all branch meetings of the Japan Neurosurgical Society and identify related issues they encountered. The programs of all seven branch meetings of the Japan Neurosurgical Society (Hokkaido, Tohoku, Kanto, Chubu, Kinki, Chugoku/Shikoku, and Kyushu) were used to determine the number of presentations and chairpersons by sex. The covered period was from January 2008 to December 2020, which was available for viewing during the survey. Of note, only the Kinki branch used data from January 2008 to December 2019. The Neurologia Medico-chirurgica (NMC), the journal of the Japan Neurosurgical Society, was also reviewed to identify publication achievements during the same period. In all seven branches, the percentage of presentations given by female physicians increased from 7.9% in 2008 to 9.6% in 2020 (p < 0.05).Conversely, the percentage of female chairpersons in all branch meetings did not change over time and it was significantly lower (1.1%) than that of female presenters (7.9%) for all branch meetings combined in over 13 years (p < 0.01). In the NMC, the number of articles with female physicians as first authors did not increase or decrease over the years. We conclude that efforts to smoothly promote female neurosurgeons as chairpersons and increase the number of female first authors are necessary to facilitate their academic activities.

著者

Takuma HARA Hiroyoshi AKUTSU Shuho TANAKA Hiroyoshi KINO Hidetaka MIYAMOTO Rieko II Shingo TAKANO Eiichi ISHIKAWA

出版者

The Japan Neurosurgical Society

雑誌

Neurologia medico-chirurgica (ISSN:04708105)

巻号頁・発行日

pp.2022-0132, (Released:2022-11-25)

参考文献数

25

被引用文献数

1

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This study analyzed risk factors for postoperative cerebrospinal fluid (CSF) leak after graded multilayer cranial base repair method with dural suturing. We performed surgery via the endoscopic endonasal approach (EEA) from 2012.6 to 2018.4, and those consecutive clinical data were prospectively accumulated and retrospectively analyzed. We tailored the repair method according to the intraoperative CSF leak grade. Among 388 surgeries via the EEA, there were 10 (2.6%) cases of postoperative CSF leak after graded repair with suturing. Postoperative CSF leak occurred in two of the 150 cases without intraoperative CSF leak (grade 0), one of the 104 cases with small (grade 1) intraoperative CSF leak, two of the 60 cases with moderate (grade 2) leak, and five of the 74 cases with large (grade 3) leak. Univariate analysis indicated that chordoma (P = 0.023), estimated tumor volume ≥ 7400 mm3 (P = 0.003), and maximum tumor diameter ≥ 32.5 mm (P = 0.001) were significant risk factors for postoperative CSF leak. Additionally, among cases with intraoperative grade 3 CSF leak, chordoma (P = 0.021), estimated tumor volume ≥ 23000 mm3 (P = 0.003), and maximum tumor diameter ≥ 45.5 mm (P = 0.001) were significant risk factors for postoperative CSF leak. Maximum tumor diameter, estimated tumor volume, and chordoma tumor pathology are related to a higher risk of postoperative CSF leak.

著者

Yusuke MORINAGA Hiroyoshi AKUTSU Hiroyoshi KINO Shuho TANAKA Hidetaka MIYAMOTO Masahide MATSUDA Eiichi ISHIKAWA

出版者

The Japan Neurosurgical Society

雑誌

NMC Case Report Journal (ISSN:21884226)

巻号頁・発行日

vol.9, pp.55-61, 2022-12-31 (Released:2022-04-01)

参考文献数

18

被引用文献数

1

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We report the use of endoscopic endonasal surgery for dural reconstruction following a cerebrospinal fluid leak in a 33-year-old patient with recurrent meningitis since at age of 2 years. Magnetic resonance imaging showed osteolytic changes in the left temporal and sphenoid bones, including the left pterygoid plate, a few left temporal encephaloceles, and cerebrospinal fluid-like fluid in the expanded Meckel's cave and the parapharyngeal space. After endoscopic endonasal surgery, Gorham-Stout disease was diagnosed. No recurrence of cerebrospinal fluid leakage or meningitis has been observed. Thus, endoscopic endonasal surgery might improve clinical outcomes in patients with Gorham-Stout disease and skull base defects.

著者

Masahide MATSUDA Tetsuya YAMAMOTO Eiichi ISHIKAWA Kei NAKAI Hiroyoshi AKUTSU Kuniyuki ONUMA Akira MATSUMURA

出版者

社団法人 日本脳神経外科学会

雑誌

Neurologia medico-chirurgica (ISSN:04708105)

巻号頁・発行日

vol.55, no.9, pp.749-755, 2015 (Released:2015-09-15)

参考文献数

21

被引用文献数

2 5

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Temozolomide (TMZ) as a concomitant and adjuvant chemotherapy to radiotherapy following maximal surgical resection is the established standard therapy for patients with newly diagnosed high-grade glioma. However, detailed analysis of chemotherapy-induced nausea and vomiting (CINV) associated with concomitant TMZ has not been sufficiently described. We prospectively analyzed the profile of CINV associated with concomitant TMZ. Eighteen consecutive patients with newly diagnosed high-grade glioma treated with concomitant chemoradiotherapy including TMZ were enrolled. CINV was recorded using a daily diary including nausea assessment, emetic episodes, degree of appetite suppression, and antiemetic medication use. The observed incidence rates of all grade nausea, moderate/severe (CTC grade 2, 3) nausea, emetic episodes, and appetite suppression for the overall period were 89%, 39%, 39%, and 83%, respectively. Moderate/severe nausea and severe (CTC grade 3) appetite suppression were frequently observed during the delayed phase of the treatment. Emetic episodes and moderate/severe nausea were significantly correlated with female gender. Moderate/severe nausea and severe appetite suppression were significantly correlated with low lymphocyte counts before chemoradiotherapy. For CINV associated with concomitant TMZ, enhanced antiemetic therapy focused on the delayed phase of the treatment will likely be beneficial, especially in female patients with a low lymphocyte count before chemoradiotherapy.

著者

Noriaki SAKAMOTO Eiichi ISHIKAWA Yasunobu NAKAI Hiroyoshi AKUTSU Tetsuya YAMAMOTO Kei NAKAI Masanari SHIIGAI Hideo TSURUSHIMA Tomonori ISOBE Shingo TAKANO Koji TSUBOI Akira MATSUMURA

出版者

社団法人 日本脳神経外科学会

雑誌

Neurologia medico-chirurgica (ISSN:04708105)

巻号頁・発行日

vol.52, no.12, pp.878-884, 2012 (Released:2012-12-25)

参考文献数

27

被引用文献数

9 30 5

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Intracranial hemangioblastomas (HBs) are hypervascular neoplasms mainly located in the posterior fossa of the central nervous system. Preoperative embolization of the feeding arteries is one proposal for reduction of intraoperative hemorrhage, although indications for the procedures should be evaluated carefully due to the potential complications. This retrospective study investigated clinical outcomes and complications of 15 patients with HBs in the posterior fossa to evaluate the safety and effectiveness of endovascular procedures as well as angiographical procedures. Surgical excision without presurgical embolization was performed in 8 cases, and excision with presurgical embolization was performed in 7 cases, using Guglielmi detachable coils with or without polyvinyl alcohol (GDC ± PVA) in 4 cases and only n-butyl 2-cyanoacrylate (NBCA) in 3 cases. The embolization was applied for selected cases in which feeding arteries were located in a deep site and hard to coagulate surgically. Partial embolization was achieved in 5 cases, and all feeders were successfully embolized in 2 cases. Total removal was achieved in 12 cases, and subtotal/partial removal was achieved in 3 cases. Subarachnoid hemorrhage with intratumoral hemorrhage occurred in 1 case during the angiographic procedure and in 1 case during the embolization procedures. The mean volume of intraoperative blood loss was clearly less in the NBCA group than in the GDC ± PVA group. HBs are mainly located in the posterior cranial fossa, so the risk of severe clinical complication may be high if vascular problems occur. In our series, presurgical embolization using NBCA made tumor removal safe and reduced bleeding volume in posterior fossa HBs.