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Journals / Düzce Tıp Fakültesi Dergisi / 2020 / Cilt: 22 - Sayı: 3

Evaluation of the Effect of Aortic Stenosis and Severity on Left Ventricular Function by Isovolumic Myocardial Acceleration

Aort Darlığı ve Ciddiyetinin Sol Ventrikül Fonksiyonuna Etkisinin İsovolumik Miyokardiyal Akselerasyon ile Değerlendirilmesi

Ertan AKBAY
Mehmet ERTURK
Serkan YAZAN
Mustafa Umut SOMUNCU
Aydın YILDIRIM
Pages
154–160
Publication Date
2020-12-30
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Results: The systolic parameters IVV (p

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: Tissue Doppler-derived isovolumic acceleration (IVA) is a parameter that evaluates the systolic function of both ventricles, without being affected by pre-load and post-load.
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Key Findings & Data:Material and Methods: A total of 105 patients were included in the study, 75 of which had isolated AS and 30 were free of any valve disease.
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Conclusion & Impact:Results: The systolic parameters IVV (p
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:aort darlığı · isovolumik akselerasyon · doku Doppler görüntüleme

Abstract

Aim: Tissue Doppler-derived isovolumic acceleration (IVA) is a parameter that evaluates the systolic function of both ventricles, without being affected by pre-load and post-load. We aimed to detect left ventricular systolic dysfunction at an early stage with IVA in patients with asymptomatic aortic stenosis (AS). Material and Methods: A total of 105 patients were included in the study, 75 of which had isolated AS and 30 were free of any valve disease. Patients with AS were divided into three groups (mild, moderate and severe) according to their aortic valve area (AVA) and aortic peak velocities, as determined by means of a transthoracic echocardiography. Conventional echocardiography, systolic and diastolic Tissue Doppler parameters [peak myocardial velocity during isovolumic contraction (IVV), myocardial velocity during ejection phase (Sm), early diastolic myocardial velocity (e'), late diastolic myocardial velocity (a'), and acceleration time (AT)] were calculated in all patients. IVA was obtained by dividing the IVV flow rate by the AT time. Results: The systolic parameters IVV (p

Özet

Amaç: Doku Doppler kaynaklı isovolumik akselerasyon (İVA) her iki ventrikülün sistolik fonksiyonunu ön ve ard yükten etkilenmeden değerlendiren bir parametredir. Bu çalışmada asemptomatik aort darlığı (AD) olan hastalarda, sol ventrikül sistolik disfonksiyonun İVA ile erken aşamada tespiti amaçlanmıştır. Gereç ve Yöntemler: Çalışmaya izole AD bulunan 75 hasta ve herhangi bir kapak hastalığı bulunmayan 30 hasta olmak üzere toplam 105 hasta dahil edildi. AD hastaları, transtorasik ekokardiyografi ile belirlenen aort kapak alanı (AKA) ve aortik pik velositeye göre üç gruba (hafif, orta ve ileri) ayrıldı. Konvansiyonel ekokardiyografi parametreleri, sistolik ve diyastolik doku Doppler parametreleri [isovolumik kontraksiyon esnasında oluşan pik miyokardiyal velosite (IVV), ejeksiyon fazında oluşan miyokardiyal velosite (Sm), erken diyastolik miyokardiyal velosite (e'), geç diyastolik miyokardiyal velosite (a'), akselarasyon zamanı (AT)] tüm hastalarda hesaplandı. İVA, IVV akım hızının AT süresine bölünmesiyle elde edildi. Bulgular: Sistolik parametrelerden IVV (p

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Cite This Article

AKBAY, E., ERTURK, M., YAZAN, S., SOMUNCU, M. U., YILDIRIM, A. (2020). Evaluation of the Effect of Aortic Stenosis and Severity on Left Ventricular Function by Isovolumic Myocardial Acceleration. Düzce Tıp Fakültesi Dergisi, Cilt: 22 - Sayı: 3, 154–160. https://ajindex.com/articles/420109

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