Prostaglandin E1 coronary venous retroperfusion in acute myocardial ischemia: effects on regional left ventricular function and infarct size
Abstract
Prostaglandin E1 was administered by means of coronary venous synchronized retroperfusion and the effectiveness of the combined (prostaglandin-retroperfusion) system was examined during acute myocardial ischemia in 10 closed chest anesthetized dogs. Such treatment was administered between 30 minutes and 3 hours after occlusion of the proximal left anterior descending coronary artery. An equivalent series of 10 dogs with arterial blood retroperfusion alone and 9 untreated dogs served as control subjects. Standardized two-dimensional echocardiographic measurements of global and regional left ventricular function were performed in five short-axis cross sections. The global low left ventricular section and its profoundly ischemic anterolateral region exhibited distinctly improved systolic fractional area changes as a result of the prostaglandin E1 retroperfusion treatment between 30 minutes and 3 hours after occlusion (22.9 +/- 1.5 to 41.2 +/- 4.0% and 1.8 +/- 3.6 to 29.4 +/- 5.6%, respectively). In contrast, further deterioration in function was noted during an untreated equivalent coronary occlusion period (16.3 +/- 2.7 to 10.0 +/- 3.3% and 12.6 +/- 6.1 to 4.1 +/- 6.9%). Although arterial blood retroperfusion alone provided disti...Continue Reading
References
Citations
Related Concepts
Related Feeds
Cardiology Journals
Discover the latest cardiology research in this collection of the top cardiology journals.