Assessment of atrial regional and global electromechanical function by tissue velocity echocardiography: a feasibility study on healthy individuals

Quintana, Miguel; Lindell, Peter; Saha, Samir K.; Furia, Francesca Del; Lind, Britta; Govind, Satish; Brodin, Lars‐Åke

doi:10.1186/1476-7120-3-4

Cited by 48 publications

(38 citation statements)

References 60 publications

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“…In studies of normal subjects [67][68][69][70], atrial wall velocities are generally higher in the lateral and anterior wall compared to the septum and inferior wall [69,70]. Analogous to the velocity gradient in the left ventricle from the annulus to the apex, a velocity gradient is also observed in the left atrium from the annulus to the superior or basal curves.…”

Section: Basic Conceptsmentioning

confidence: 78%

“…For the strain curve, analysis was timed to ventricular systole in this example, contrasting that of Fig. 2 segment, near the pulmonary veins, where the left atrium is relatively fixed [67,69,71]. Some studies showed that SR in the septum is lower than in the lateral and posterior walls [67,72], although this was not confirmed in a larger study [73•].…”

Section: Basic Conceptsmentioning

confidence: 99%

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Left Atrial Function: Doppler and Strain

Klein

2010

Curr Cardiovasc Imaging Rep

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The left atrium modulates left ventricular filling with its reservoir, conduit, and contractile functions. There is growing literature on the importance of a detailed assessment of left atrial function. This review article discusses the echocardiographic assessment of left atrial function by conventional parameters such as atrial size measurements, transmitral and pulmonary Doppler flow, mitral annular tissue velocities, as well as newer techniques such as regional strain and strain rate imaging by color tissue Doppler imaging and two-dimensional speckle tracking techniques. The clinical applications of these techniques in various conditions are discussed.

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Section: Basic Conceptsmentioning

confidence: 78%

Section: Basic Conceptsmentioning

confidence: 99%

Left Atrial Function: Doppler and Strain

Klein

2010

Curr Cardiovasc Imaging Rep

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“…PA interval was measured by Quintana et al, as the time difference from onset of P wave to the beginning, peak and end of A wave at several right and left atrial walls, to assess time to atrial activation [10], and the A wave was that of tissue Doppler imaging. …”

Section: Methodsmentioning

confidence: 99%

Echocardiographic assessment of the left atrial function in patients with mitral valve disease by two-dimensional speckle tracking

Hemeda¹,

Elmoneum²,

Kishk³

et al. 2018

Cardio Vasc Syst

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Objectives: Comparing effects of mitral stenosis and mitral regurgitation on LA deformation using twodimensional speckle tracking echocardiography. Methods: Fifty patients with isolated moderate to severe MS, fifty patients with isolated moderate to severe MR and normal left ventricular ejection fraction (EF≥ 55%) were compared using one way analysis of variance (ANOVA) test with two-group comparisons. LA reservoir strain was calculated as peak systolic atrial longitudinal strain, LA reservoir strain rate as peak systolic positive value, LA conduit SR as the early diastolic negative peak, and LA contractile SR as the late diastolic negative peak with QRS onset as the reference point. Results: There was a statistically significant difference between the LA average PALS (p<0.001), SRS (p=0.012), SRE (p<0.001), TTP strain (p<0.001), SRA (p=0.010), and TTP SRE (p=0.005) of the 2 patient groups. LA average PALS was significantly higher in MR compared to MS patients (p<0.001).The average SRS, SRE and SRA were nearly similar in MS and MR patients. The TTP strain and TTP SRE were significantly shorter in MR compared to MS patients (p<0.001and p= 0.005, respectively). Significant inverse correlations were noted between the LA volume index (LAVI) and average PALS (r=-0.898, P<0.001), SRS (r=-0.927, P<0.001), SRE (r=-0.938, P<0.001) and SRA (r=-0.957, P<0.001) in MR patients. Conclusion: Left atrial PALS, TTP strain, and TTP SRE can differentiate between volume overloaded and pressure overloaded left atrium. Pressure overload seems to have a more pronounced effect on LA mechanics.

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“…Značaj neinvazivne ehokardiografske procene elektromehaničkog kuplinga je dokazalo više autora. Quintana i ostali su evaluirali elektromehanički kupling leve pretkomore mereći nekoliko intervala [10]. Dabrowska Kugacka i ostali [11] su pokazali da je, bez obzira što mehanički pokreti leve pretkomore počinju homogeno, kontrakcija lateralnog zida leve pretkomore malo odložena.…”

Section: Diskusijaunclassified

Electromechanical left atrial function in patients with varying degrees of hypertension

Djikic¹,

Perić²,

Simić³

et al. 2014

Praxis Med

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Pretkomorske aritmije su čest problem kod bolesnika sa arterijskom hipertenzijom. Neke skorašnje studije su pokazale da je električno kašnjenje impulsa procenjeno ehokardiografski produženo kod bolesnika sa paroksizmalnom atrijalnom fibrilacijom u odnosu na zdrave. Proceniti elektromehaničku funkciju leve prekomore kod bolesnika sa različitim stepenima arterijske hipertenzije u odnosu na zdrave. U studiju je uključeno 103 bolesnika sa arterijskom hipertenzijom, koji su podeljeni u četiri grupe u odnosu na stepen arterijske hipertezije i 46 zdravih kontrola. Volumeni leve pretkomore su mereni ehokardiografski koristeći metodu diska, aktivni i pasivni volumeni pražnjenja leve pretkomore i frakcije su izračunavani. Električno kašnjenje unutar leve pretkomore i između dve pretkomore su mereni tkivnim doplerom. Vrednosti pasivne frakcije pražnjenja leve pretkomore su bile najviše kod bolesnika iz kontrolne grupe i kod bolesnika sa prehipertenzijom, značajno su opadale kako je rastao stepen arterijske hipertenzije (12.8 vs 12.6 vs 11.2 vs .10.2 vs 9.9%, p˂0.001). Vrednosti aktivne frakcije prežnjenja leve pretkomoore su bile veće kod bolesnika iz kontrolne grupe i sa prehipertenzijom, značajno su opadale kako je rastao stepen arterijske hipertenzije (28 vs 23 vs 40 vs 40 vs 39%). Električno kašnjenje unutar leve pretkomore je je bilo značajno niže kod bolesnika iz kontrolne grupe i značajno se povećavalo kako je rasla pripadnost grupi sa većim stepenima aterijske hipertenzije (6…9…15…23…31 ms, p˂0.001). Bolesnici sa prehipertenzijom su imali značajno veće vrednosti električnog kašnjenja unutar leve pretkomore u odnosu na bolesnike iz kontrolne grupe. Električno kašnjenje između dve pretkomore je značajno raslo kako je rasla pripadnost grupi sa većim stepenom arterijske hipertenzije (15.6…25.3…35.2…50.2…67.4ms , p˂0.001). Studija je pokazala da i bolesnici sa regulisanom arterijskom hipertenzijom imaju narušenu elektromehaničku funkciju leve pretkomore. Električno kašnjenje unutar pretkomore i između dve pretkomore se produžava kako raste stepen arterijske hipertenzije, što može da govori o povišenom riziku za nastanak pretkomorskih aritmija kod ovih bolesnika.Ključne reči: arterijska hipertenzija, elektromehaničko kašnjenje, leva pretkomora UVODArterijska hipertenzija je veliki problem javnog zdravlja. Faktor je rizika raznih kardiovaskularnih oboljenja i čest razlog kardiovaskularnog oštećenja [1]. Štetni efekti na srce mogu da budu strukturni i funkcionalni. Procena srčane funkcije je značajna za planiranje lečenja bolesnika sa arterijskom hipertenzijom i stratifikaciju rizika [2]. Arterijska hipertenzija je vodeći uzrok narušene dijastolne funkcije srca. Hipertrofija leve komore, ekstracelularna i perivaskularna fibroza i miokardna ishemija imaju uticaja u razvoju dijastolne disfunkcije srca u ovoj bolesti [3]. Ovim hemodinamskim i morfološkim promenama u levoj pretkomori i levoj komori hipertenzija može da dovede do nestabilnosti i heterogenosti u pretkomorskom provođenju [4]. Prevalenca različitih srčanih abnorma...

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Assessment of atrial regional and global electromechanical function by tissue velocity echocardiography: a feasibility study on healthy individuals

Cited by 48 publications

References 60 publications

Left Atrial Function: Doppler and Strain

Left Atrial Function: Doppler and Strain

Echocardiographic assessment of the left atrial function in patients with mitral valve disease by two-dimensional speckle tracking

Electromechanical left atrial function in patients with varying degrees of hypertension

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