The Effect of Conductivity on ST-Segment Epicardial Potentials Arising from Subendocardial Ischemia

2005 ◽  
Vol 33 (6) ◽  
pp. 751-763 ◽  
Author(s):  
Bruce Hopenfeld ◽  
Jeroen G. Stinstra ◽  
Rob S. MacLeod
Keyword(s):  
Subendocardial Ischemia ◽  
St Segment ◽  
Epicardial Potentials

scholarly journals Cardioprotective effects of compound ALM-802 on subendocardial ischemia models

2021 ◽  
pp. 18-22
Author(s):  
I. B. Tsorin ◽  
V. V. Barchukov ◽  
M. B. Vititnova ◽  
A. M. Likhosherstov ◽  
G. V. Mokrov ◽  
...  
Keyword(s):  
Myocardial Ischemia ◽  
Cardioprotective Effect ◽  
Rat Models ◽  
Subendocardial Ischemia ◽  
Anesthetized Rats ◽  
St Segment ◽  
Cardioprotective Effects

The investigation purpose. N1-(2,3,4-trimethoxybenzyl)-N2-{2-[(2,3,4-trimethoxybenzyl)amino]ethyl}-1,2-ethanediamine (ALM-802 compounds) cardioprotective effect has been studied in rat models of subendocardial ischemia caused by isoproterenol and dobutamine. Material and methods. Acute subendocardial myocardial ischemia in anesthetized rats (urethane 1300 mg/kg, i.p.) was caused by infusion of isoproterenol (20 µg/kg/min i.v.) or dobutamine (80 µg/kg/min i.v.). Results. It was shown that in anesthetized rats, isoproterenol and dobutamine caused almost the same ST-segment depression in the II standard ECG lead. The compound ALM-802 (2 mg/kg i.v.), administered 2 minutes before the infusion start of isoproterenol or dobutamine, equally prevented the occurrence of ischemic changes on the ECG. Conclusion. The non-selective beta-adrenomimetic isoproterenol and the selective β1-adrenomimetic dobutamine cause subendocardial ischemia of the same intensity in anesthetized rats. The compound ALM-802 has a pronounced anti-ischemic effect on both models.

Resting ST-segment depression predicts exercise-induced subendocardial ischemia in patients with hypertrophic cardiomyopathy

2006 ◽  
Vol 107 (2) ◽  
pp. 267-274 ◽  
Author(s):  
Tatsuya Kawasaki ◽  
Akihiro Azuma ◽  
Toshiro Kuribayashi ◽  
Takuya Taniguchi ◽  
Nobuyuki Miyai ◽  
...  
Keyword(s):  
Hypertrophic Cardiomyopathy ◽  
Subendocardial Ischemia ◽  
St Segment ◽  
Exercise Induced
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