D. Baller

A critical look at currently used indirect indices of myocardial oxygen consumption

SummaryMyocardial oxygen consumption indices that are frequently applied to man such as tension-time index (TTI), pressure-rate product (P·HR) and triple product (TP) have not been fully validated so far. These easily obtainable indices and a modified TTI

Influence of arteriographic contrast media on the Na+/Ca++-ratio in blood

(\overline P \cdot \sqrt {HR} )

Quantification of ischemic stress during repeated coronary artery occlusion in the dog, a method for validation of therapeutic effects. I: Estimation of O2-debt and O2-repayment

, therefore, were examined in 10 closed-chest dogs with very broad variations of hemodynamics and oxygen consumption (3–36 ml/min·100 g) analyzing 162 steady states. Myocardial blood flow was directly measured by a differential pressure coronary sinus catheter.

Quantification of ischemic stress during repeated coronary artery occlusion in the dog. A method for validation of therapeutic effects. II. Reproducibility of the release and uptake of electrolytes and substrates.

M\dot VO_2

Improvement of cardiac pumping efficiency by adenosine

was varied by administration of catecholamines and other inotropic drugs, atropine, beta-blocking agents and hypo- and hypervolemia. Over a wide range of hemodynamic states, correlations with directly measured