PMID: 2508512Oct 1, 1989Paper

Left ventricular excursions and velocities during coronary arterial ligation. Effects of nitroglycerin infusion in an experimental model

Angiology
N G KounisD J Antoniou

Abstract

To determine the effects of intravenous nitroglycerin on the velocities and excursions of the acutely ischemic myocardium, 20 open-chest dogs were studied by use of ultrasound. In 10 dogs with acute septal ischemia, the posterior wall excursion during contraction (B-C excursion), the mean systolic posterior wall velocity, and the posterior wall excursion remained unaltered. Nitroglycerin, however, increased all these parameters (P less than 0.01). In 10 dogs with acute posterior wall ischemia the B-C excursion (aneurysmal bulging) increased (P less than 0.01), but the mean systolic posterior wall velocity and posterior wall excursion decreased (P less than 0.01). Nitroglycerin increased even more the aneurysmal bulging (P less than 0.01) and the other parameters (P less than 0.01). Increased regional blood flow, reduced afterload, and mechanical pulling of the ischemic myocardium seem to be a possible mechanism. The measurements were obtained using the recently described method of the specific points.

References

Jul 1, 1975·The American Journal of Cardiology·B C CoryaM J Black
Jan 1, 1975·Circulation·J T FlahertyB Pitt
Sep 1, 1972·Cardiovascular Research·J HeikkiläP G Hugenholtz

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Citations

Jul 18, 2008·International Journal of Cardiology·Murat BitekerMehmet Ozkan

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