| ID | 16901 |
| Eprint ID | 16901
|
| FullText URL | |
| Title Alternative | Correlation between QT interval and RR interval on the epicardial electrogram in open-chest dog.
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| Author |
Yasuhara, Koichiro
Saito, Daiji
Takeda, Kou
Hyodo, Tazuo
Haraoka, Shoichi
Nagashima, Hideo
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| Abstract | Correlation between QT interval and RR interval on epicardial electrogram in anesthetized open-chest dog was studied. The aortic blood pressure was kept above 70mmHg during the course of the experiment. RR interval was changed by left atrial pacing in the range of 0.243-0.870sec (0.412±0.119, mean±SD). In association with the change in RR interval, QT interval varied in the range of 0.190-0.360sec (0.253±0.028). The relation of QT interval to RR interval was statistically significant (r=0.744, p<0.01), though QT interval varied widely when the heart rate was under 100beat/min. QT interval correlated more closely to √RR interval than RR interval. The correlation equation was as follow: QT interval(sec)=0.24√RR interval (sec)+0.102, r=0.760, p<0.01. The data suggest that QT interval obtained by epicardial electrogram would be of use as an index of local electrical systole.
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| Keywords | ＱＴ interval
RR interval
epicardial electrogram
anesthetized open-chest dog
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| Published Date | 1982-10-30
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| Publication Title |
岡山医学会雑誌
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| Publication Title Alternative | Journal of Okayama Medical Association
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| Volume | volume94
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| Issue | issue9-10
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| Publisher | 岡山医学会
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| Publisher Alternative | Okayama Medical Association
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| Start Page | 915
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| End Page | 920
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| ISSN | 0030-1558
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| NCID | AN00032489
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| Content Type |
Journal Article
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| Official Url | https://www.jstage.jst.go.jp/article/joma1947/94/9-10/94_9-10_915/_article/-char/ja/
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| Related Url | http://www.okayama-u.ac.jp/user/oma/index.html
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| language |
Japanese
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| Copyright Holders | 岡山医学会
|
| File Version | publisher
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| Refereed |
True
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| Eprints Journal Name | joma
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