open access

Vol 79, No 3 (2021)
Original article
Published online: 2021-01-18
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Comparison of left ventricular mechanical dyssynchrony parameters between exercise and adenosine triphosphate stress tests using gated single-photon emission computed tomography myocardial perfusion imaging

Jianzhou Shi, Yanli Zhou, Priyaranjan Kata, Sheilabi Seeburun, Cheng Wang, Dianfu Li, Zhixin Jiang, Weihua Zhou
DOI: 10.33963/KP.15761
·
Pubmed: 33463997
·
Kardiol Pol 2021;79(3):294-301.

open access

Vol 79, No 3 (2021)
Original article
Published online: 2021-01-18

Abstract

ABSTRACT Background: Left ventricular mechanical dyssynchrony (LVMD) can be induced after stress test. However, no studies have compared the influence of different stress‑inducing methods on LVMD parameters. Aims: The aim of the study was to determine whether there is a difference between exercise and adenosine triphosphate (ATP) stress tests in terms of changes in LVMD parameters assessed using gated single‑photon emission computed tomography myocardial perfusion imaging (GSPECT MPI). Methods: A total of190 patients who underwent 99mTc ‑sestamibi GSPECT MPI were consecutively enrolled. Treadmill exercise and ATP stress tests were performed in 95 patients each. Normal myocardial perfusion was defined as the summed stress score (SSS) ≤3 and summed rest score (SRS) ≤3, myocardial ischemia as SSS >3 and SRS ≤3, and myocardial infarction as SSS >3 and SRS >3. Parameters of LVMD, including phase standard deviation (PSD), phase bandwidth (PBW), skewness, and kurtosis were compared. Subtraction was made between values during stress and rest phases to acquire ∆PSD, ∆PBW, ∆skewness, and ∆kurtosis Results: There were no differences in LVMD parameters between the exercise and ATP groups. The same results were obtained in the normal perfusion, ischemia, and infarction subgroups. Furthermore, no differences were observed in ∆PSD (median [interquartile range, IQR], 0.25 [–2.3 to 3.1] vs 0.42 (–1.7 to 3.1]; P = 0.73), ∆PBW (median [IQR], 1 [–7 to 11] vs 1 [–6 to 11]; P = 0.95), ∆skewness (mean [SD], –0.06 [0.63] vs 0 [0.81]; P = 0.53), and ∆kurtosis (median [IQR], –0.47 [–4.2 to 4.3] vs –0.42 [–4.8 to 5.2]; P = 0.73) between the exercise and ATP stress‑inducing methods. Conclusions: There are no differences between the exercise and ATP stress tests in terms of changes in LVMD parameters. Thus, the 2 methods can be used alternatively.

Abstract

ABSTRACT Background: Left ventricular mechanical dyssynchrony (LVMD) can be induced after stress test. However, no studies have compared the influence of different stress‑inducing methods on LVMD parameters. Aims: The aim of the study was to determine whether there is a difference between exercise and adenosine triphosphate (ATP) stress tests in terms of changes in LVMD parameters assessed using gated single‑photon emission computed tomography myocardial perfusion imaging (GSPECT MPI). Methods: A total of190 patients who underwent 99mTc ‑sestamibi GSPECT MPI were consecutively enrolled. Treadmill exercise and ATP stress tests were performed in 95 patients each. Normal myocardial perfusion was defined as the summed stress score (SSS) ≤3 and summed rest score (SRS) ≤3, myocardial ischemia as SSS >3 and SRS ≤3, and myocardial infarction as SSS >3 and SRS >3. Parameters of LVMD, including phase standard deviation (PSD), phase bandwidth (PBW), skewness, and kurtosis were compared. Subtraction was made between values during stress and rest phases to acquire ∆PSD, ∆PBW, ∆skewness, and ∆kurtosis Results: There were no differences in LVMD parameters between the exercise and ATP groups. The same results were obtained in the normal perfusion, ischemia, and infarction subgroups. Furthermore, no differences were observed in ∆PSD (median [interquartile range, IQR], 0.25 [–2.3 to 3.1] vs 0.42 (–1.7 to 3.1]; P = 0.73), ∆PBW (median [IQR], 1 [–7 to 11] vs 1 [–6 to 11]; P = 0.95), ∆skewness (mean [SD], –0.06 [0.63] vs 0 [0.81]; P = 0.53), and ∆kurtosis (median [IQR], –0.47 [–4.2 to 4.3] vs –0.42 [–4.8 to 5.2]; P = 0.73) between the exercise and ATP stress‑inducing methods. Conclusions: There are no differences between the exercise and ATP stress tests in terms of changes in LVMD parameters. Thus, the 2 methods can be used alternatively.
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About this article
Title

Comparison of left ventricular mechanical dyssynchrony parameters between exercise and adenosine triphosphate stress tests using gated single-photon emission computed tomography myocardial perfusion imaging

Journal

Kardiologia Polska (Polish Heart Journal)

Issue

Vol 79, No 3 (2021)

Article type

Original article

Pages

294-301

Published online

2021-01-18

DOI

10.33963/KP.15761

Pubmed

33463997

Bibliographic record

Kardiol Pol 2021;79(3):294-301.

Authors

Jianzhou Shi
Yanli Zhou
Priyaranjan Kata
Sheilabi Seeburun
Cheng Wang
Dianfu Li
Zhixin Jiang
Weihua Zhou

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