PMID: 9554040Apr 29, 1998Paper

Simplified retroperfusion system preserves the myocardial function during acute coronary artery occlusion

The Thoracic and Cardiovascular Surgeon
S F KatircioğluK Köse

Abstract

It is known that coronary venous retroperfusion restores the blood flow to the ischemic myocardium, resulting in reduction of infarct size and improvement in left-ventricular pump function. In this study, we used an animal model to investigate the effects of a simplified coronary venous retroperfusion system on myocardial hemodynamics. Twenty dogs were entered in this study. All dogs underwent fifteen minutes occlusion of the left anterior descending artery. For the rest of the experiment the dogs were randomized into two groups: the control group (n = 10) underwent a further 2 hours left anterior descending artery occlusion, then clamps were released and the animals were observed for 6 hours. In the retroperfusion group (n = 10) a simple aortocoronary sinus connection was made and retrograde perfusion achieved with an outflow of 43 +/- 6 ml/min. Retrograde coronary sinus perfusion was maintained for three hours and then the dogs were observed for six hours. Tissue adenosine triphosphate levels were 6 +/- 3 mumol/g in the control group and 12 +/- 2 mumol/g in the retroperfusion group (p < 0.05) 6 hours after reperfusion. Creatine phosphokinase levels were 99 +/- 11 IU/L in the control group and 42 +/- 8 IU/L in the retroperfusi...Continue Reading

Citations

Oct 13, 2000·The Japanese Journal of Thoracic and Cardiovascular Surgery : Official Publication of the Japanese Association for Thoracic Surgery = Nihon Kyōbu Geka Gakkai Zasshi·H FujiiH Imamura

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