[The diagnostic value for ischemic heart disease of thallium-201 myocardial scintigraphy by intravenous infusion of SUNY4001 (adenosine)--the report of clinical trial at multi-center: phase III].
With two hundred and seven patients unable to exercise adequately, the diagnostic accuracy and adverse reaction of 201Tl myocardial scintigraphy with the pharmacologic stress by SUNY4001 (adenosine) infusion were studied. Adenosine was infused for six minutes at the rate of 120 microg/kg/min, and then 201Tl was injected after three minutes from the start of infusion. The early and delayed images were obtained by SPECT imaging. According to angiography, > or = AHA 90% stenosis was defined as significant. The sensitivity of detecting coronary artery disease was 87.1% and the specificity was 46.0%. Adverse reactions occurred in 66.7% of the patients, most of which disappeared shortly with no need for treatment. Major adverse reactions were chest pain/discomfort (30.4%), flushing/feeling of warmth (22.4%) and blood pressure decrease (17.4%). Adenosine infusion caused slight decrease in blood pressure and increase in heart rate. These hemodynamic changes were resolved within several minutes from the termination of adenosine infusion. We concluded that adenosine-201Tl imaging is safe and useful to detect coronary artery disease in patients unable to exercise adequately.
Yamazaki
Junichi
J
First Department of Internal Medicine, Toho University School of Medicine.
Nishimura
Tsunehiko
T
Nishimura
Shigeyuki
S
Kajiya
Teishi
T
Kodama
Kazuhisa
K
Kato
Kazuzo
K
D000241:Adenosine; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging*; D006439:Hemodynamics; D006801:Humans; D007262:Infusions, Intravenous; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging / Q000503:physiopathology; D011237:Predictive Value of Tests; D012680:Sensitivity and Specificity; D013794:Thallium Radioisotopes; D015899:Tomography, Emission-Computed, Single-Photon
D013794:Thallium Radioisotopes; D000241:Adenosine