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Usefulness of Exercise ECG Test with Nitroglycerin and Exercise Cardiac Scintigraphy in Patients with False Positive Exercise ECG Test

山口医学 Volume 33 Issue 6 Page 443-450
published_at 1984-12
Title
運動負荷心電図偽陽性例におけるニトログリセリン運動負荷試験と心筋シンチグラフィーの有用性について
Usefulness of Exercise ECG Test with Nitroglycerin and Exercise Cardiac Scintigraphy in Patients with False Positive Exercise ECG Test
Creators Moritani Kohshiro
Source Identifiers
The purpose of this study is to evaluate the clinical usefulness of exercise (Ex) ECG test with sublingual nitroglycerin (NTG) and Ex cardiac scintigraphy in differentiating false positive responses from true positive responses of Ex ECG test. We examined 7 pts (age : 46±7 years) with true positive Ex ECG test (TP) and 8 pts (age : 55±10 years) with false positive Ex ECG test (FP), TP had significant coronary artery disease and FP did not. Ex test was done by multistage ergometer test. In 5 pts of TP and all pts of FP, Ex cardiac scintigraphy was performed. In TP, Ex cardiac scintigraphy revealed reversible perfusion deficit, but not in FP. NTG was administered 3 minutes before Ex test was started. Ex test with NTG was terminated at the same load as Ex test without NTG. Pressure-rate products at the end point of Ex test did not show significant difference between Ex test without NTG and that with NTG (TP:203×10、213×10^2, FP: 196×10^2, 206×10^2, respectively). In 7 pts of FP. ST depression in Ex test without NTG was not improved in Ex test with NTG. On the other hand, in all pts of TP, ST depression seen in Ex test without NTG, was not observed in Ex test with NTG. It may be concluded that Ex cardiac scintigraphy is diagnostic for differentiation of false positive responses from true positive responses of Ex ECG test, as well as Ex ECG test with NTG is.
Subjects
医学 ( Other)
Languages jpn
Resource Type journal article
Publishers 山口大学医学会
Date Issued 1984-12
File Version Not Applicable (or Unknown)
Access Rights metadata only access
Relations
[ISSN]0513-1731
[NCID]AN00243156
Schools 医学部