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ID 42507
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タイトル(別表記)
Electrocardiographic Study in Cardiac Surgery Part II. The Effects of Selective Brain Cooling on E. C. G.
著者
河西 正充 岡山大学医学部津田外科教室
抄録
The effects of selective brain cooling on E. C. G. were studied on dogs. The method applied was entirely the same as Kimoto described. Rectal temperature of dogs were kept at 31°C and brain temperature at around 19°C. In two dogs inflow tracts of heart were occluded and in another three further intracardiac manipulation were performed. E. C. G. were taken continuously during cooling, cardiac inflow occlusion and after release of occlusion. The following alterations in E. C. G. were noticed. (1) Changes during cooling Prolongation of R-R, P-Q, and Q-T intervals were marked compared to in the case of general hypothermia. QRS widened markedly and R wave appeared in earlier stage than in the latter. R wave was rather depressed instead of increase of amplitude which was seen in the case of general hypothermia. There were found no marked changes in R, Q and S waves as in the latter. Invertion of T occurred but no depression of ST segments were observed. (2) Changes during inflow tract occlusion Within ten to fifteen minutes following the occlusion R-R was markedly prolonged, R wave markedly depressed, QRS widened and T wave elevated. After release of occlusion these changes returned to normal. No marked prolongation of P-Q was seen though P(E)Q(A) was markedly depressed and concomitant depression of P wave occurred in leads II and III. Q-T was rather shortened compared to before occlusion. No marked alterations of ST segments were seen. Temporary ventricular premature beats appeared after release of occlusion in one dog. (3) Changes during intracardiac manipulation Two of three dogs on which intracardiac manipulation were attempted died of ventricular fibrillation at the end of manipulation. One survived the experiment though he developed complete atrio-ventricular dissociation at the end of intracardiac manipulation.
発行日
1957-03-31
出版物タイトル
岡山医学会雑誌
出版物タイトル(別表記)
Journal of Okayama Medical Association
69巻
3号
出版者
岡山医学会
出版者(別表記)
Okayama Medical Association
開始ページ
767
終了ページ
781
ISSN
0030-1558
NCID
AN00032489
資料タイプ
学術雑誌論文
オフィシャル URL
https://www.jstage.jst.go.jp/article/joma1947/69/3/69_3_767/_article/-char/ja/
関連URL
http://www.okayama-u.ac.jp/user/oma/
言語
Japanese
OAI-PMH Set
岡山大学
著作権者
Copyright© 岡山医学会
論文のバージョン
publisher
査読
有り
Sort Key
14
Eprints Journal Name
joma