Improvements in exercise electrocardiography.
نویسندگان
چکیده
منابع مشابه
Improvements in exercise electrocardiography.
In 1908, Einthovent published the first example of normal electrocardiographic responses to exercise. In 1928, Feil and Siegel2 observed abnormal downsloping ST depression and T wave inversion in three of four patients experiencing anginal attacks (presumably after climbing stairs to the phy-sician's office; H. Hellerstein, personal communication). In 1932, Goldhammer and Scherf3 associated thi...
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The electrocardiogram (ECG or EKG) is a graphic recording of the time-variant voltages produced by the myocardium during the cardiac cycle. The P, QRS, and T waves reflect the rhythmic electrical depolarization and re-polarization of the myocardium associated with the contractions of the atria and ventricles. The electrocardiogram is generally used clinically in diagnosing diseases of the heart...
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A svstem of miultiple-lead exeicise electrocardiography has been applied to the study of 107 normal subjects and 67 patients with angina pectoris. The results of this test are compared to those of coronary cinearteriography in 84 patients. In-exercise ECGs gave useful additional information in 59% of the angina patients but were essential for interpretation in 9%. It added considerably to the s...
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ژورنال
عنوان ژورنال: Circulation
سال: 1989
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.79.2.458