Coronary Arteriography in the Intact Dog

Coronary arteriography in the intact dog.

Coronary artery catheterization in the intact dog.

STUDIES of the coronary circulation by injections of drugs, embolizing particles or radio-opaque materials into the coronary arteries until recently have necessitated a choice between opening the chest for direct injections, and indirect injection through a catheter into the vicinity of the coronary ostia without opening the chest. The advantages of both approaches could be combined, and their ...

Alterations in calcium levels of coronary sinus blood during coronary arteriography in the dog.

Intracoronary administration of contrast materials causes myocardial depression which is related to serveral physiochemical properties of the contrast solution. The role of variations in ambient calcium ions (Ca++) in mediating this effect was evaluated in 19 anesthetized dogs. Sodium meglumine diatrizoate caused decreases in left ventricular peak systolic pressure (LVPSP),-12.6 +/- 3.2%, and d...

Ethanol causes epicardial coronary artery vasoconstriction in the intact dog.

Ethanol produces in vitro vasoconstriction of coronary arteries and can precipitate angina in patients with coronary obstructive disease. To demonstrate the in vivo effect of ethanol on coronary dynamics, baseline measurements of left anterior descending (LAD) coronary artery dimension by quantitative angiography, hemodynamics, arterial and coronary sinus blood gases, and blood ethanol levels w...

The complications of coronary arteriography.

A nationwide survey was undertaken to determine the rate of complications due to coronary arteriography during 1970-71. The responses from 173 hospitals-including a total of 46,904 coronary arteriograms-were analyzed in relationship to the technique employed and to the number of examinations performed at each hospital during the two-year period. The overall mortality rate was 0.45% (brachial 0....