ISSN 1016-5169 | E-ISSN 1308-4488
Archives of the Turkish Society of Cardiology
Value of Stress-Recovery Index on Exercise ECG in Detection of High-risk Patients on Exercise Tl-201 Scintigraphy [Turk Kardiyol Dern Ars]
Turk Kardiyol Dern Ars. 1998; 26(9): 522-528

Value of Stress-Recovery Index on Exercise ECG in Detection of High-risk Patients on Exercise Tl-201 Scintigraphy

Mehmet AKSOY1, Metin GÜRSÜRER1, Ayşe EMRE1, Hakan AKYÜZ1, Turgut SİBER1, Kemal YEŞİLÇİMEN1, Birsen ERSEK1

W e sought to determine the value of a new exercise testing index (Stress-Recovery Index (SRI)) combining information on the amount and kinetics of ST depression in the heart rate domain during exercise and recovery to detect high-risk patients on exercise TI-201 scintigraphy. 122 cases without previous myocardial infaretion underwent symptomlimited treadınili exercise testing and Tl-201 SPECT imaging. At the end of each test, the lead exhibiting the greatest ST depression was selected for fıırther analysis to calculate the SRI. Heart rate and corresponding ST segment values were entered in a formerly-designed computer program to automaticaUy calculate SRI values. SPECT images were divided into 20 segments and the number of segments with redistribution defect (RD) were identifıed per patient. Patients were divided into 2 groups as the low-risk group (RD<5, n=88) and the high-risk group (RD~. n=34). The mean SRI of the 2 groups were 5.5±13 and -19.8±15 mm. beats.min-1, respectively (p<0.0001). Moreover, patients with increased lung uptake and left ventricular dilatation indicating high risk at Tl-20 1 scintigraphy had lower SRI values compared to those without (-22.3±14 vs. -5.5±12 mm. beats.min- 1, p<0.0001; -24.2±13 vs.- 6.1±14 mm.beats.min-1; pKeywords: Stress-recovery index, exercise Tl-201 scintigraphy.


How to cite this article
Mehmet AKSOY, Metin GÜRSÜRER, Ayşe EMRE, Hakan AKYÜZ, Turgut SİBER, Kemal YEŞİLÇİMEN, Birsen ERSEK. Value of Stress-Recovery Index on Exercise ECG in Detection of High-risk Patients on Exercise Tl-201 Scintigraphy. Turk Kardiyol Dern Ars. 1998; 26(9): 522-528
Manuscript Language: Turkish


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