Proper Use of Left Atrial Ejection Force as a Measure of Left Atrial Mechanical Function

Zhong, Liang; Tan, Ru San; Ghista, Dhanjoo N.

doi:10.1111/j.1540-8175.2012.01732.x

Cited by 9 publications

(8 citation statements)

References 15 publications

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“…A further limitation regards on the Manning's formula and the measurement of LASF, which is empirically based. Criticisms and comments about this issue have been extensively articulated and recently published as letters in this Journal 29,30 …”

Section: Discussionmentioning

confidence: 99%

“…Criticisms and comments about this issue have been extensively articulated and recently published as letters in this Journal. 29,30 Clinical Implications and Conclusions: While the prognosis in asymptomatic mild-tomoderate AS is generally good, some patients experience CV events that are unexpected based on AS severity and lack of symptoms. This knowledge, derived by the clinical practice, suggests individualized risk assessment in AS.…”

Section: Study Limitationsmentioning

confidence: 99%

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Left Atrial Systolic Force and Outcome in Asymptomatic Mild to Moderate Aortic Stenosis

et al. 2012

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Section: Discussionmentioning

confidence: 99%

Section: Study Limitationsmentioning

confidence: 99%

Left Atrial Systolic Force and Outcome in Asymptomatic Mild to Moderate Aortic Stenosis

et al. 2012

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“…LAEF is defined as the force generated by the LA to expel the blood through the mitral valve during atrial systole (5). The contribution of the left atrial contraction to the LV filling becomes more significant, particularly in patients with diastolic dysfunction (6). In this study, it was associated with decreased LAEF volume and decreased LAVI in the HUTT results.…”

Section: Discussionmentioning

confidence: 55%

Contribution of left atrial volume and function in neurocardiogenic syncope

Başanalan¹,

Çoşkun²,

Sucu³

et al. 2017

Eur J Ther

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Objective:In this study, we aimed to investigate the presence of atrial volume and decrease in contraction force by measuring left atrial volume and contraction with the head-up tilt table (HUTT) test in patients who were diagnosed with neurocardiogenic syncope (NCS). Methods: Overall, 45 patients (26 females/19 males, mean age: 26.4±9.2 years) who experienced vasovagal syncope in HUTT (HUTT+) and 40 healthy controls (17 females/23 males, mean age:28.8±10.5 years; HUTT-) were included in the study. Results: When comparing the groups in terms of left atrial ejection force, there was a significant difference between the HUTT+ and HUTT−vasovagal syncope groups (p=0.05). In both groups, there was a positive correlation between atrial ejection force and left atrial volume (r=0.287, p=0.016) and left atrial volume index (r=0.261, p=0.029). Conclusion:We showed that the left atrial ejection force and the left atrial volume index were significantly lower in positive vasovagal syncope patients than those in the negative vasovagal syncope patients. Keywords: Syncope, echocardiography, left atrium ÖZ Amaç: Vasovagal Senkop (VVS) sık görülen klinik bir durum olmakla birlikte altta yatan mekanizmalar henüz tam olarak anlaşılama-mıştır.Bu çalışma, eğik masa testi pozitif olan VVS'lu hastalarda, sol atrial sistolik fonksiyonun VVS gelişimindeki rolünü araştırmak amacıyla yapılmıştır. Yöntemler: Açıklanamayan senkop nedeniyle eğik masa testi ve ekokardiyografi uygulanan toplam 95 hasta çalışmaya alındı. Eğik masa testi pozitif olan 45 hasta (n=45), eğik masa testi negatif olan 40 hasta (n=40) ile karşılaştırıldı. Bulgular: Yaş ve cinsiyet dağılımı açısından guruplar arasında fark gözlenmedi (sırasıyla p=0,27 ve 0,11). Ekokardiyografik değer-lendirmede sol atrium hacmi, sol atrium hacim indeksi ve sol atrial ejeksiyon kuvveti eğik masa testi pozitif olan gurupta anlamlı olarak daha düşük bulundu (sırasıyla p=0,03, 0,05 ve 0,05). Mitral kapak anulusünden kaydedilen Doppler akımları açısından guruplar arasında fark saptanmadı fakat E/A oranı eğik masa testi pozitif olan gurupta anlamlı olarak daha düşük bulundu (p=0,02).

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“…Part of the data of participants has been published recently 34,35 . The baseline characteristics of the population are shown in Table 1.…”

Section: Subjectmentioning

confidence: 99%

Left Ventricular Diastolic Function Assessment Using the Timing of Mitral Annular and Transmitral Flow Velocities

Huang

Zhong

Zhang

et al. 2013

Proceedings of Singapore Healthcare

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Background and aims:Evaluation of left ventricular (LV) diastolic function plays an important role in clinical echocardiography. The relationship between mitral annular velocities from tissue Doppler imaging (TDI) (E' and A') and mitral inflow velocities (E and A) from Doppler echocardiography (DE) provide additional information about LV filling and diastolic function. The aims of this study are to i) assess the time differences between peak E and peak E' , peak A and peak A' , peak Ar and peak A, and ii) examine the effects of age and gender on these time intervals parameters in normal subjects.

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Proper Use of Left Atrial Ejection Force as a Measure of Left Atrial Mechanical Function

Cited by 9 publications

References 15 publications

Left Atrial Systolic Force and Outcome in Asymptomatic Mild to Moderate Aortic Stenosis

Left Atrial Systolic Force and Outcome in Asymptomatic Mild to Moderate Aortic Stenosis

Contribution of left atrial volume and function in neurocardiogenic syncope

Left Ventricular Diastolic Function Assessment Using the Timing of Mitral Annular and Transmitral Flow Velocities

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