Prognostic value of stress myocardial perfusion imaging using adenosine triphosphate at the beginning of haemodialysis treatment in patients with end-stage renal disease.
BACKGROUND
Non-invasive detection of coronary artery disease (CAD) remains difficult in patients with end-stage renal disease (ESRD). This study evaluated the ability of pharmacologic stress myocardial perfusion imaging to predict cardiac events in patients with ESRD.


METHODS
A prospective study was carried out in 49 consecutive patients with ESRD. Thallium-201 single photon emission computed tomography (SPECT) using high-dose adenosine triphosphate (ATP) was performed within 1 month of the beginning of haemodialysis. The study end-point was a cardiac event or the 1-year anniversary of the SPECT study.


RESULTS
Twenty-four patients (17 diabetics, 57% and seven non-diabetics, 37%) had myocardial perfusion defects. The remaining 25 patients had normal perfusion images. Fifteen patients had non-fatal cardiac events and two patients died of a cardiac cause. All patients who had non-fatal cardiac events underwent myocardial revascularization and survived until the end of follow-up. The 1-year cardiac event-free survival rate was 34% among patients with perfusion defects and 96% among patients without perfusion defects (P<0.001). The presence of a myocardial perfusion defect was the only independent predictor of 1-year cardiac events both in overall (HR, 49.91; 95% CI, 5.15-484.00; P<0.001) and in diabetic patients (HR, 33.72; 95% CI, 2.96-383.5; P = 0.005). Diabetes and an increased C-reactive protein were associated with the progression of CAD.


CONCLUSIONS
Normal myocardial perfusion imaging by stress thallium-201 SPECT using high-dose ATP performed within 1 month after the beginning of haemodialysis treatment is a powerful predictor of cardiac event-free survival in patients with ESRD.
Division of Nephrology, Department of Internal Medicine, Toho University Ohashi Hospital, Tokyo, Japan. hiroki@oha.toho-u.ac.jp
Hiroki
H
Hase
Nobuhiko
N
Joki
Hiroyasu
H
Ishikawa
Hiroshi
H
Fukuda
Yoshihiko
Y
Imamura
Tomokatsu
T
Saijyo
Yuri
Y
Tanaka
Yasunori
Y
Takahashi
Yoji
Y
Inishi
Masato
M
Nakamura
Masao
M
Moroi
D002318:Cardiovascular Diseases / Q000150:complications / Q000000981:diagnostic imaging; D003327:Coronary Disease / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000401:mortality; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000401:mortality / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D006435:Renal Dialysis; D015203:Reproducibility of Results; D012307:Risk Factors; D016019:Survival Analysis; D015899:Tomography, Emission-Computed, Single-Photon