TY - JOUR
T1 - Sinus node deceleration during dobutamine perfusion scintigraphy as a marker of inferior ischemia
AU - Hopfenspirger, Mona R.
AU - Miller, Todd D.
AU - Christian, Timothy F.
AU - Gibbons, Raymond J.
N1 - Funding Information:
From the Departments of Nursing, and Internal Medicine and Cardiovascular Diseases, East 16-A, Mayo Clinic and Foundation, 200 First Street SW, Rochester, Minnesota 55905. This study was supported in part by E.I. DuPont de Nemours and Company. Manuscript received February 28, 1994; revised manuscript received and accepted May 16, 1994.
PY - 1994/10/15
Y1 - 1994/10/15
N2 - Traditional electrocardiographic markers of exerciseinduced ischemia include ST-segment depression or elevation, U-wave inversion, ventricular ectopy, and chronotropic incompetence. Miller et al1 recently described sinus node deceleration, defined as an initial increase and subsequent decrease in heart rate with progressive exercise, as a marker of atherosclerotic narrowing of the right coronary artery. For patients unable to perform treadmill exercise, dobutamine thallium imaging has emerged as an alternative stress method for the detection of coronary artery disease.2,3 The purpose of this study was to determine if sinus node deceleration occurs during dobutamine perfusion scintigraphy and whether it is a marker of inferior wall ischemia.
AB - Traditional electrocardiographic markers of exerciseinduced ischemia include ST-segment depression or elevation, U-wave inversion, ventricular ectopy, and chronotropic incompetence. Miller et al1 recently described sinus node deceleration, defined as an initial increase and subsequent decrease in heart rate with progressive exercise, as a marker of atherosclerotic narrowing of the right coronary artery. For patients unable to perform treadmill exercise, dobutamine thallium imaging has emerged as an alternative stress method for the detection of coronary artery disease.2,3 The purpose of this study was to determine if sinus node deceleration occurs during dobutamine perfusion scintigraphy and whether it is a marker of inferior wall ischemia.
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U2 - 10.1016/0002-9149(94)90444-8
DO - 10.1016/0002-9149(94)90444-8
M3 - Article
C2 - 7942559
AN - SCOPUS:0028051541
SN - 0002-9149
VL - 74
SP - 817
EP - 819
JO - The American journal of cardiology
JF - The American journal of cardiology
IS - 8
ER -