Changes in Hemodynamics and Bradykinin Concentration in Coronary Sinus Blood in Experimental Coronary Artery Occlusion
-
- HASHIMOTO Keiichi
- he First Department of Internal Medicine, Nippon Medical School
-
- HIROSE Masaru
- he First Department of Internal Medicine, Nippon Medical School
-
- FURUKAWA Soichi
- he First Department of Internal Medicine, Nippon Medical School
-
- HAYAKAWA Hirokazu
- he First Department of Internal Medicine, Nippon Medical School
-
- KIMURA Eiichi
- he First Department of Internal Medicine, Nippon Medical School
Bibliographic Information
- Other Title
-
- Changes in Hemodynamics and Bradykinin
Search this article
Abstract
The following parameters were studied before and after acute occlusion of the anterior descending branch of the left coronary artery in 17 dogs: bradykinin (BK) in the coronary sinus blood, heart rate (HR), left ventricular systolic pressure (LVSP), left ventricular end-diastolic pressure (LVEDP), left ventricular max dp/dt (LV max dp/dt), and an index of myocardial contractility (LV max dp/dt/IP).<br>BK levels increased, reaching a maximum of 30±13ng/ml 2 min after coronary ligation, accompanied by a significant elevation of LVEDP, and lowering of the myocardial contractility index. HR and LV max dp/dt showed no significant changes. A positive correlation obtained between the level of BK and LVEDP, as well as a negative correlation be-tween the level of BK and of both LVSP and myocardial contractility in-dex. Pretreatment with aprotinine (Trasylol), an inhibitor of kinin forming enzyme, prevented the increase in both BK and LVEDP after coronary artery ligation and caused an elevation of myocardial contractility index. These results suggest that BK formed within ischemic myocardium exerts a negative inotropic action on the heart.
Journal
-
- Japanese Heart Journal
-
Japanese Heart Journal 18 (5), 679-689, 1977
International Heart Journal Association
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390282680015565568
-
- NII Article ID
- 130000762875
-
- NII Book ID
- AA00690786
-
- COI
- 1:CAS:528:DyaE1cXksFOru7k%3D
-
- ISSN
- 1348673X
- 00214868
-
- NDL BIB ID
- 1912911
-
- PubMed
- 303709
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
-
- Abstract License Flag
- Disallowed