著者

渡辺 義郎 山本 康弘

出版者

一般社団法人日本建築学会

雑誌

日本建築学会論文報告集 (ISSN:03871185)

巻号頁・発行日

no.89, 1963-09

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この研究は、異形三角鉄筋を引張主筋として用いる場合の、重ね継手の長さと耐力および変形の関係を明らかにすることを目的として行ったもので、ここに報告するものはスパン長き約2mの梁を作成し、その引張主筋に16mmの異形三角鉄筋を使用し、中央部に設けた重ね継手の長さを種々変化し継手のないものと比較しながら亀裂の状況および鉄筋内部の応力状態などを調べた。

著者

小林 繁樹 佐藤 章 古口 徳雄 水流 京子 和田 政則 宮田 昭宏 中村 宏 渡辺 義郎 八木下 敏志行

出版者

一般社団法人 日本脳卒中の外科学会

雑誌

脳卒中の外科 (ISSN:09145508)

巻号頁・発行日

vol.32, no.1, pp.13-18, 2004 (Released:2007-06-12)

参考文献数

14

被引用文献数

6 7

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Indication of early treatment remains controversial for patients in poor clinical condition (Hunt & Kosnik Grade 4 or 5) after subarachnoid hemorrhage (SAH). Since 1997, we have adopted endovascular treatment using Guglielmi detachable coil (GDC) as a treatment option for these patients. In this study, we compared clinical courses of the cases treated in 1990-1996 to those treated in 1997-2002 to evaluate the efficacy of changes in treatment strategy. Between 1990 and 2002, 130 cases with SAH in Grade 4 and 5 underwent angiography as candidates of early aggressive treatment in our hospital. For the 63 cases in 1990-96 (Group 1), treatment options were early and intensively delayed craniotomy surgery and conservative management, while for the 67 cases in 1997-2002 (Group 2), GDC embolization at acute stage was added to these 3 treatment options. We compared the 2 groups of patients in terms of clinical courses and outcomes, assessed with Glasgow Outcome Scale Score (GOS) at discharge. The percentage of the patients in which aneurysm was occluded at acute stage increased from 67% in Group 1 to 87% in Group 2 for Grade 4 and from 33% to 52% for Grade 5. In Group 2, 44% of Grade 4 and 83% of Grade 5 patients were treated by GDC embolization. The outcomes of the cases in both Grade 4 and 5 were better in Group 2 than in Group 1. That is, for Grade 4 cases, the percentage of Good Recovery (GR) significantly increased from 7% in Group 1 to 27% in Group 2. And for Grade 5 cases, good outcome (GR or MD) increased from 5% in Group 1 to 18% in Group 2. Two patients recovered completely from Grade 5 in Group 2, both of which were treated with GDC while none in Group 1 recovered completely from Grade 5. The incidence of symptomatic vasospasm was not changed between Group 1 (20%) and Group 2 (16%). The introduction of GDC embolization extended the indication of early treatment for severe SAH patients because it was less invasive and, as a consequence, improved the outcome of those patients.