Reproducibility of Regional and Global Longitudinal Strains Derived from Two-Dimensional Speckle-Tracking and Doppler Tissue Imaging between Expert and Novice Readers during Quantitative Dobutamine Stress Echocardiography

Yamada, Akira; Luis, Sushil Allen; Sathianathan, D.; Khandheria, Bijoy K.; Cafaro, J.; Hamilton-Craig, Christian; Platts, D.; Haseler, Luke J.; Burstow, Darryl J.; Chan, Jonathan

doi:10.1016/j.echo.2014.04.016

Cited by 54 publications

(36 citation statements)

References 41 publications

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“…A markedly improved reproducibility has been seen in the interpretation of dobutamine stress echocardiography with the use of GLPS (52). In line with this, our findings indicate a good reproducibility of GLPS in septic shock.…”

Section: Reliability and Variabilitysupporting

confidence: 78%

“…The measurements used for the echocardiographic assessment of cardiac function are manually obtained, and are therefore to some extent inherently subjective. In cardiology, the impact of observer dependence on echocardiographic measurements is well known (50)(51)(52). In stress echocardiography especially, a substantial interobserver variability has been described, even among expert observers (50,51).…”

Section: Variability Of Measurementsmentioning

confidence: 99%

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Cardiac dysfunction in septic shock : Observational studies on characteristics and outcome

Geer

2016

Linköping University Medical Dissertations

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Background: Cardiac dysfunction is a well-known complication of sepsis, but its characteristics and consequences, especially on a longer term, remain unclear. The aim of this thesis was to study the characteristics and the implications of cardiac dysfunction for outcome in intensive care unit (ICU) patients with septic shock. Purpose: First, to assess the ability of a cardiac biomarker to predict outcome in ICU patients. Second, to characterise cardiac dysfunction in septic shock using speckle tracking echocardiography. Third, to investigate the reliability of echocardiographic methods used to describe cardiac dysfunction in septic shock. Fourth, to study long-term cardiac outcome in severe sepsis and septic shock patients. Materials and methods: The cardiac biomarker amino-terminal pro-brain natriuretic peptide (NTproBNP) was collected in 481 patients on ICU admission and its ability to predict death was assessed. In 50 patients with septic shock, echocardiography was performed on ICU admission and was repeated during and after ICU stay. Measurements of cardiac strain using speckle tracking echocardiography were assessed in relation to other echocardiographic function parameters, NT-proBNP and severity of illness scores, and their change over time was analysed. Echocardiograms from patients with septic shock were independently evaluated by two physicians and the results analysed regarding measurement variability. A nationwide-registry-based open cohort of 9,520 severe sepsis and septic shock ICU patients discharged alive from the ICU was analysed together with a non-septic control group matched for age, sex and severity of illness. In patients who died after ICU discharge, information on causes of death was collected. Results: A discriminatory level of significance of NT-proBNP on ICU admission was identified at ≥1,380 ng/L, above which NT-proBNP was an independent predictor of death. With increasing levels of NT-proBNP, patients were more severely ill, had a longer ICU stay and were more often admitted with septic shock. Cardiac strain was frequently impaired in septic shock patients but was not superior to other echocardiographic measurements in detecting cardiac dysfunction. Cardiac strain correlated with other echocardiographic function parameters and with NT-proBNP, and was the least user-dependent echocardiographic parameter in septic shock patients. Cardiac strain remained unchanged over time, did not differ between survivors and non-survivors and could not predict an increased risk of death. During a follow-up of up to nearly 6 years after ICU discharge, 3,954 (42%) of sepsis patients died, 654 (17%) with cardiac failure as the cause of death. With increasing severity of illness on admission, the risk of death with cardiac failure as the cause of death after ICU discharge increased. In comparison to other ICU patients with similar severity of illness, however, the risk of death due to cardiac was not increased in patients with severe sepsis or septic shock. Conclusions: Laboratory or echocardiographic si...

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Section: Reliability and Variabilitysupporting

confidence: 78%

Section: Variability Of Measurementsmentioning

confidence: 99%

Cardiac dysfunction in septic shock : Observational studies on characteristics and outcome

Geer

2016

Linköping University Medical Dissertations

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“…We previously demonstrated color TDI as sensitive markers of longitudinal dysfunction caused by CAD, and that these TDI velocities can improve the diagnostics of CAD in patients suspected of SAP . However, the increased reproducibility of 2DSTE from a fast semiautomated offline analysis, even by novice readers, facilitates its applicability compared to TDI‐derived strain …”

Section: Discussionmentioning

confidence: 99%

“…8 However, the increased reproducibility of 2DSTE from a fast semiautomated offline analysis, even by novice readers, facilitates its applicability compared to TDI-derived strain. 5,10,27 2DSTE has proven to be a sensitive tool for a wide array of heart diseases, as wall-motion abnormalities may be due to other conditions than CAD, such as arterial hypertension, diabetes, heart valve disease, and interventricular conduction disturbances among others. 28,29 To avoid confounding from coexistence of these conditions, patients with intraventricular conduction disturbances and heart valve disease among other conditions were excluded (Figure 1), and adjusted analyzes were performed for significant confounders.…”

Section: Discussionmentioning

confidence: 99%

Layer‐specific global longitudinal strain reveals impaired cardiac function in patients with reversible ischemia

et al. 2018

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“…Left ventricle (LV) longitudinal strain is located predominately in the subendocardial region and is the most sensitive component of LV mechanics to determine ischemia . Yamada et al . elegantly showed that global longitudinal strain (GLS) is highly feasible and reproducible during all stages of DSE, even by a novice reader as is it a semiautomated method that is relatively easy to perform.…”

Section: Introductionmentioning

confidence: 99%

Early and late diastolic strain rate vs global longitudinal strain at rest and during dobutamine stress for the assessment of significant coronary artery stenosis in patients with a moderate and high probability of coronary artery disease

Rumbinaitė

Žaliaduonytė-Pekšienė

Lapinskas

et al. 2016

Echocardiography

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Reproducibility of Regional and Global Longitudinal Strains Derived from Two-Dimensional Speckle-Tracking and Doppler Tissue Imaging between Expert and Novice Readers during Quantitative Dobutamine Stress Echocardiography

Cited by 54 publications

References 41 publications

Cardiac dysfunction in septic shock : Observational studies on characteristics and outcome

Cardiac dysfunction in septic shock : Observational studies on characteristics and outcome

Layer‐specific global longitudinal strain reveals impaired cardiac function in patients with reversible ischemia

Early and late diastolic strain rate vs global longitudinal strain at rest and during dobutamine stress for the assessment of significant coronary artery stenosis in patients with a moderate and high probability of coronary artery disease

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