title: [The effect of oxyfedrine on cardiac performance in coronary patients. Tests using electrocardiographic and metabolic parameters in atrial stimulation].
abstract: In 17 patients with coronary heart disease the effects of the beta-active agent L-3-(beta-hydroxy-alpha-methyl-phenethyl-amino)-3'-methoxy-propiophenone (oxyfedrine, Ildamen) were proved at rest and during atrial pacing by measurements of coronary venous O2-saturation, myocardial lactate extraction, angina threshold and ST-segment depression. In 88% oxyfedrine had antianginal effectivity with rise in angina threshold (+11%), reduction of ST-segment depression (--48%) and reduction of lactate production(--63%). The rise in coronary venous O2-saturation ("35%) and the electrocardiographic and metabolic reduction of hypoxic reaction indicate the improvement of nutritional coronary flow. Therefore improvement of myocardial O2-balance is derived from the reduced energy requirement by decrease of heart size and ventricular wall tension and the rise of myocardial O2-supply by coronary dilation in spite of the increased energy requirement by ascending contractility. Conclusively the application of oxyfedrine is preferred in coronary heart disease with simultaneous congestive heart failure.
mesh_terms: D000328:Adult; D000368:Aged; D002986:Clinical Trials as Topic; D003327:Coronary Disease / Q000503:physiopathology*; D004562:Electrocardiography; D004734:Energy Metabolism / Q000187:drug effects; D005260:Female; D006325:Heart Atria / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009206:Myocardium / Q000378:metabolism*; D010099:Oxyfedrine / Q000494:pharmacology*; D010101:Oxygen Consumption / Q000187:drug effects; D011427:Propiophenones / Q000494:pharmacology*
chemical_list: D011427:Propiophenones; D010099:Oxyfedrine
vernacular_title: Die Wirkung von Oxyfedrin auf die kardiale Belastungstoleranz bei Koronarpatienten