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  • Title: Evaluation of high viscosity contrast media in canine selective coronary arteriography.
    Author: Kaftori JK, Paulin S.
    Journal: Cathet Cardiovasc Diagn; 1975; 1(3):293-301. PubMed ID: 1222426.
    Abstract:
    A special high viscosity preparation of water soluble radiopaque contrast media was explored in animals for its suitability in selective coronary angiography. The high viscosity required power injection to accomplish adequate filling during selective coronary arteriography. The anticipated angiographic advantages, such as prolonged visualization and coating of the vascular walls, were marginal. Comparison with conventional preparations of the same contrast agent suggests that the high viscosity itself exerts some protective effect with regard to the immediate side effects on the electrocardiogram and mechanical function of the myocardium. However, the high viscosity preparation induced electrocardiographic signs compatible with myocardial ischemia not usually seen to follow the injection of conventional contrast agents. These were followed by mechanical heart failure or ventricular fibrillation resulting in death of 6 of the 10 experimental animals. It was concluded that high viscosity contrast media preparations are unsuitable for use in clinical selective coronary arteriography as presently practiced.
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