Speckle-tracking strain of the left atrium: a transoesophageal echocardiographic validation study

Leong, Darryl P.; Penhall, A.; Perry, Rebecca; Shirazi, Mitra; Altman, M.; Chong, David H.; Bradley, Julie A.; Joseph, M.; Selvanayagam, Joseph B.

doi:10.1093/ehjci/jes323

Cited by 22 publications

(12 citation statements)

References 23 publications

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“…A study using tissue Doppler imaging has shown a moderately strong positive association (r = 0.73; p = 0.007) between mean left atrial systolic strain and LAA appendage emptying velocities [28], contrary to what we found in our sample. Leong et al have found that speckle tracking derived parameters are more rapidly measured and more accurate than tissue Doppler for the discrimination of the presence of moderate-severe left atrial spontaneous echocardiographic contrast [29]. Patients with AF are also known to present higher degrees of left atrial dyssynchrony [30].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of left atrial deformation to predict left atrial stasis in patients with non-valvular atrial fibrillation – a pilot-study

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Faustino

Ferreira

et al. 2013

Cardiovasc Ultrasound

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BackgroundSpeckle tracking-derived strain and strain rate are recently available parameters to assess left atrial (LA) deformation. We hypothesized that such new parameters could be of interest to evaluate the risk of LA stasis among patients with atrial fibrillation (AF).MethodsSingle-centre study enrolling all patients with non-valvular AF lasting longer than 48 hours for whom no therapeutic anticoagulation was given in the preceding 3 weeks and who were assessed through transesophageal and transthoracic echocardiogram during a 6 month time interval. LA deformation was assessed by transthoracic echocardiogram through speckle tracking analysis, whereas LA stasis parameters were sought on transesophageal echocardiogram.ResultsAmong the 82 assessed patients, LA appendage thrombi or sludge were found in 16 (19.5%). A moderate positive correlation was found between peak positive strain rate and maximum emptying velocity (r = 0.589; P <0.001) and peak positive strain rate and maximum filling velocity of the LA appendage (r = 0.651; P <0.001). Peak negative strain rate was also found to be associated with both maximum emptying velocity (r = -0.513; P <0.001) and maximum filling velocity of the LAA (r = -0.552; P <0.001). AF duration, peak negative strain rate and time-to-peak positive strain were independent predictors of LAA thrombi or sludge on multivariate analysis logistic regression. The area under the curve for the estimated probabilities using the obtained logistic regression model was 0.89 (95%CI 0.81-0.96; P <0.001).ConclusionOur findings suggest that LA mechanical dysfunction assessed through speckle tracking may be of interest to predict LA stasis in the setting of AF.

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Section: Discussionmentioning

confidence: 99%

Evaluation of left atrial deformation to predict left atrial stasis in patients with non-valvular atrial fibrillation – a pilot-study

Providência

Faustino

Ferreira

et al. 2013

Cardiovasc Ultrasound

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“…Evaluation of LA mechanics is a recent field of study, and many novel methods for assessment of LA motion parameters have been developed. Recent evidence has suggested that LA mechanics measurement by speckle tracking echocardiography might have a promising role in the assessment of LA function and as a predictor of ischemic stroke …”

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Thromboembolic Risk in Atrial Fibrillation: Association between Left Atrium Mechanics and Risk Scores. A Study Based on 3D Wall‐Motion Tracking Technology

et al. 2014

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“…86 The degree of atrial fibrosis as assessed by late gadolinium enhancement on MRI has been associated with the presence of LAA thrombi and spontaneous contrast, 87 as has left atrial dysfunction identified by strain imaging which identifies abnormalities in myocardial deformation. 88,89 Bipolar voltage mapping of the left atrium in AF has correlated the extent of myopathic low voltage electrograms (≤0.5 mV) with reduced LAA emptying velocity. 90 These tissue changes have been proposed to contribute to increased local thrombogenicity at the blood-endocardium interface.…”

Section: Left Atrial Appendage Dysfunction and Myopathymentioning

confidence: 99%

Left Atrial Appendage Exclusion for Atrial Fibrillation

Syed

DeSimone

Friedman

et al. 2016

Heart Failure Clinics

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Speckle-tracking strain of the left atrium: a transoesophageal echocardiographic validation study

Abstract: Assessment of LA mechanical function using speckle-tracking echocardiography is a valid approach compared with transoesophageal echocardiography, and is clinically feasible.

Cited by 22 publications

References 23 publications

Evaluation of left atrial deformation to predict left atrial stasis in patients with non-valvular atrial fibrillation – a pilot-study

Evaluation of left atrial deformation to predict left atrial stasis in patients with non-valvular atrial fibrillation – a pilot-study

Thromboembolic Risk in Atrial Fibrillation: Association between Left Atrium Mechanics and Risk Scores. A Study Based on 3D Wall‐Motion Tracking Technology

Left Atrial Appendage Exclusion for Atrial Fibrillation

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