Variability of inotropic and chronotropic response during dobutamine stress echocardiography and possible implications for diagnostic accuracy.
Chronotropic and inotropic response patterns were assessed during dobutamine stress echocardiography. Three heart rate response patterns were noted: nonresponders (48% of patients), slow responders (30% of patients), and fast responders (21% of patients). There was no relation between heart rate and contractile response.
Chenzbraun
Adrian
A
The Heiden Department of Cardiology, Bikur Cholim Hospital, Jerusalem, Israel. adrianc@md2.ac.il
Potekhin
Marina
M
Dreyfuss
Michel
M
Alper-Gendelman
Tova
T
Kott
Frida
F
Keren
Andre
A
D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D001285:Atropine; D002316:Cardiotonic Agents / Q000494:pharmacology*; D003327:Coronary Disease / Q000175:diagnosis; D004280:Dobutamine / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D025401:Echocardiography, Stress; D005260:Female; D006339:Heart Rate / Q000187:drug effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010276:Parasympatholytics; D011446:Prospective Studies
D002316:Cardiotonic Agents; D010276:Parasympatholytics; D004280:Dobutamine; D001285:Atropine