Evaluation of left ventricular regional systolic functions in patients with coronary artery disease by two-dimensional strain imaging: a velocity vector imaging study

Tayyareci, Yelda; Yıldırımtürk, Özlem; Yurdakul, Selen; Aytekin, Vedat; Demiroglu, I.C. Cemsid; Aytekin, Saide

doi:10.5543/tkda.2011.01065

Cited by 2 publications

(2 citation statements)

References 33 publications

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“…STE is easy to perform, and it requires only one cardiac cycle to be acquired; further interpretation can be done after image acquisition. The 2D-STE method is not based on tissue Doppler measurements, consequently it is not angle dependent (8,9). Automated function imaging (AFI) was recently introduced which reflect systolic LV function, based on 2D-STE imaging by assessment of global LV longitudinal strain (L S ).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of subclinical left ventricular systolic dysfunction in patients with obstructive sleep apnea by automated function imaging method; an observational study

Altekin¹,

Yanıkoğlu²,

Karakaş³

et al. 2012

Anadolu Kardiyol Derg

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Objective: We aimed to evaluate the subclinical left ventricular (LV) systolic dysfunction with the automated function imaging method (AFI) based on speckle tracking echocardiography (STE) in obstructive sleep apnea patients (OSA) with normal left ventricular ejection fraction (LVEF) and without any confounding disease that can cause myocardial dysfunction. Methods: Twenty-one healthy individuals and 58 OSA patients were included in this observational cross-sectional study. According to the severity of disease, OSA patients were examined in three groups; mild, moderate and severe OSA. Apical 2-, 3-and 4-chamber images were obtained for AFI evaluation. The global systolic longitudinal strain (GL S ) values were determined for each view, and averages of these were used in comparison of the patient groups. One-way ANOVA, Kruskal-Wallis, Pearson correlation tests and linear regression analysis were used for statistical analysis. Results: The GL S values of the OSA patients were lower than of the healthy individuals and these values were decreased along with the OSA severity (Healthy:-25.58±-2.16%, Mild:-23.93±-3.96%, Moderate:-21.27±-2.60%, Severe:-16.94±-2.66%, respectively). The difference was significant between moderate OSA patients and healthy individuals, and significant between severe OSA patients and all other groups (p<0.03). The apnea-hypopnea index was found to be correlated with the GL S (β=-0.659, 95% CI: 0.09-0.17, p<0.001). Conclusion: Longitudinal LV mechanics in OSA patients with normal LVEF are deteriorated in the subclinical stage being associated with the severity of disease. AFI can be used as an effective and safe method in the determination of subclinical myocardial dysfunction in OSA patients, because it is semi-automated and easy to use with a short analysis time.(Anadolu Kardiyol Derg 2012; 12: 320-30) Key words: Obstructive sleep apnea, speckle tracking echocardiography, myocardial strain, regression analysis 320 ÖZET Amaç: Sol ventrikül ejeksiyon fraksiyonu normal ve miyokart fonksiyonlarını etkileyecek ek hastalığı bulunmayan, obstrüktif uyku apneli (OUA) hastalarda, subklinik sol ventrikül sistolik disfonksiyonunu, iki boyutlu benek izleme ekokardiyografi tekniğine dayanan, otomatik fonksiyonel görün-tüleme yöntemi (OFG) ile değerlendirmeyi amaçladık. Yöntemler: Gözlemsel enine-kesitli çalışmamıza 21'i sağlıklı, 58'i OUA hastası olan toplam 79 kişi alındı. OUA'lı hastalar hastalığın ciddiyetine göre hafif, orta ve ağır olarak 3 gruba ayrıldı. OFG değerlendirmesi için sol ventrikülün apikal 2-, 3-, 4-boşluk görüntüleri kullanıldı. İlgili boşluk-lara ait sistolik longitüdinal deformasyon değerlerinin aritmetik ortalaması olan, global longitüdinal deformasyon değerleri gruplar arasında karşılaştırıldı. İstatistiksel analiz için tek -yönlü ANOVA, Kruskal-Wallis, Pearson korelasyon testleri ve doğrusal regresyon analizi kullanıldı. Bulgular: Sağlıklı gruba göre hafif OUA grubundan itibaren hastalığın ciddiyeti ile global longitüdinal deformasyon değerleri azalmaktaydı (Sağlıklı: -%25...

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Section: Introductionmentioning

confidence: 99%

Evaluation of subclinical left ventricular systolic dysfunction in patients with obstructive sleep apnea by automated function imaging method; an observational study

Altekin¹,

Yanıkoğlu²,

Karakaş³

et al. 2012

Anadolu Kardiyol Derg

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“…Currently, strain imaging is considered to be superior to conventional echocardiographic parameters and TDI, because of its ability to provide quantitative endocardial deformation analysis 39–41 . VVI is a recent 2D strain imaging technique accurate for estimating regional myocardial function and allows for the quantification of strain, SR and velocity 42 Also VVI can analyze one cardiac cycle by acoustic capture and has the availability of offline analysis 43 . In previous studies, VVI has been also used for demonstrating subclinical LV dysfunction.…”

Section: Discussionmentioning

confidence: 99%

Subclinical Left Ventricular Dysfunction in Asymptomatic Chronic Mitral Regurgitation Patients with Normal Ejection Fraction: A Combined Tissue Doppler and Velocity Vector Imaging-Based Study

et al. 2011

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Evaluation of left ventricular regional systolic functions in patients with coronary artery disease by two-dimensional strain imaging: a velocity vector imaging study

Abstract: Velocity vector imaging allows regional deformation analysis for quantitative assessment of regional LV systolic functions; this technique may be more reliable than conventional echocardiography in determining wall motion abnormalities.

Cited by 2 publications

References 33 publications

Evaluation of subclinical left ventricular systolic dysfunction in patients with obstructive sleep apnea by automated function imaging method; an observational study

Evaluation of subclinical left ventricular systolic dysfunction in patients with obstructive sleep apnea by automated function imaging method; an observational study

Subclinical Left Ventricular Dysfunction in Asymptomatic Chronic Mitral Regurgitation Patients with Normal Ejection Fraction: A Combined Tissue Doppler and Velocity Vector Imaging-Based Study

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