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  • Title: [The importance of 201-thallium myocardial scintigraphy in the hypertensive patient].
    Author: Jäger D, Vogel A, von Dryander S, Grosskurth D, Hinrichsen M, Lemke B, Machraoui A, Melz F, Wiebe V, Barmeyer J.
    Journal: Dtsch Med Wochenschr; 1992 Sep 18; 117(38):1423-8. PubMed ID: 1526204.
    Abstract:
    Thallium-201 exercise myocardial scintigraphy was performed in 57 patients (37 males, 20 females; mean age 55.4 [43-78] years) with angina and systemic hypertension after exclusion by coronary angiography of any coronary macroangiopathy. The exercise ECG of 32 patients could not be used in the diagnosis of ischaemia because of the presence of left ventricular hypertrophy with abnormal repolarization or left bundle branch block. Abnormal haemodynamics were demonstrated at cardiac catheterization in 23 patients (Swan-Ganz). Only 10 of the studied hypertensives with normal coronary angiograms had a myocardial scintigram within normal limits, while 12 had extensive ischaemic zones in the left ventricle. All patients with left bundle branch block had evidence of exercise-dependent apical "ischaemia". Thallium-201 myocardial scintigraphy should not be used as a screening method in hypertensives with angina, because the high proportion of "false-positive" findings, in the sense of a macroangiopathy, will nevertheless require early invasive diagnosis.
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