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ID 15843
Eprint ID
15843
FullText URL
Thumnail 99_1.pdf 2.56 MB
Title Alternative
Effect of Acute Myocardial Ischemia of the Interventricular Septum on Systemic Hemodynamics and Electrocardiograms of Anesthetized Dogs
Author
Hyodo, Tatsuo
Abstract
Hemodynamic and electrocardiographic changes caused by acute ischemia of the interventricular septum (IVS) were studied in 33 anesthetized dogs. IVS ischemia was produced by occluding the first septal branch of the anterior descending coronary artery. Acute IVS ischemia resulted in a significant elevation of LVEDP in open-pericardium dogs in the absence of right ventricular pressure changes. With the pericardium closed, however, RVEDP rose substantially in addition to a further increase in LVEDP. Hemodynamic effects of the ischemia of the left ventricular free wall were larger than the changes caused by IVS dysfunction similar in size to the free wall ischemia. Twelove-lead electrocardiograms showed ST depression in the inferior leads, but neither ST elevation nor appearance of an abnormal Q wave was observed after the occlusion of the first septal coronary branch. A-V or intraventricular conduction disturbance was seen in one-third of the dogs. These data suggest that acute myocardial ischemia of the IVS affected only left ventricular function in the absence of the pericardium, while it affected the hemodynamics of both ventricules when the pericardium was intact. There were no ECG changes indicating interventricular ischemia except A-V or intraventricular conduction disturbances.
Keywords
心室中隔虚血
第一中隔枝
心電図変化
血行動態
Published Date
1987-02-28
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume99
Issue
issue1-2
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
1
End Page
13
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/99/1-2/99_1-2_1/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/index.html
language
日本語
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma