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Journals / Türk Kardiyoloji Derneği Arşivi / 2019 / Cilt: 47 - Sayı: 3

Ischemic changes in lead aVR is associated with left ventricular thrombus or high-grade spontaneous echocontrast in patients with acute anterior myocardial infarction

Akut anteriyor miyokart enfarktüslü hastalarda aVR derivasyonundaki iskemik değişiklikler sol ventrikül trombüs veya yüksek dereceli spontan ekokontrast ile ilişkilidir

Hasan KOCA
Yahya Kemal İçen
Yurdaer Dönmez
Mevlüt KOÇ
Ayşe Selcan Koç
Abdullah Orhan Demirtaş
Mustafa Lütfullah Ardıç
Fadime Karataş
Pages
168–176
Publication Date
2022-11-05
DOI
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The EF (Oddsratio [OR]: 0.9, 95% confidence interval [CI]: 0.833–0.973;p=0.008), TPaVR (OR: 1.454, 95% CI: 1.074–1.967; p=0.015),and ST/TPaVR ratio (OR: 1.6, 95% CI: 1.307–1.959; p

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: The aim of this study was to investigate the relationshipbetween ischemic changes in the lead aVR and leftventricular thrombus (LVT) or high-grade spontaneous echocontrast (SEC) in patients with acute anterior myocardial infarction(MI).Methods: Quantitative T wave polarity in lead aVR (TPaVR)and ST segment deviation in the lead aVR (STaVR) measuredfrom a surface electrocardiogram (ECG), as well as theabsolute numerical values, were recorded.
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Key Findings & Data:The SYNTAX score (SS),clinical SS (cSS), and residual SS (rSS) were calculated fromangiography results.Results: A total of 34 patients with LVT or high-grade SECwere included in Group 1.
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Conclusion & Impact:The EF (Oddsratio [OR]: 0.9, 95% confidence interval [CI]: 0.833–0.973;p=0.008), TPaVR (OR: 1.454, 95% CI: 1.074–1.967; p=0.015),and ST/TPaVR ratio (OR: 1.6, 95% CI: 1.307–1.959; p
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: The aim of this study was to investigate the relationshipbetween ischemic changes in the lead aVR and leftventricular thrombus (LVT) or high-grade spontaneous echocontrast (SEC) in patients with acute anterior myocardial infarction(MI).Methods: Quantitative T wave polarity in lead aVR (TPaVR)and ST segment deviation in the lead aVR (STaVR) measuredfrom a surface electrocardiogram (ECG), as well as theabsolute numerical values, were recorded. The ST/TPaVRratio was obtained by dividing the larger absolute value bythe smaller. The presence of LVT or high-grade SEC wasrecorded using echocardiograpy. The SYNTAX score (SS),clinical SS (cSS), and residual SS (rSS) were calculated fromangiography results.Results: A total of 34 patients with LVT or high-grade SECwere included in Group 1. Group 2 comprised 170 patients whodid not have any LVT or high-grade SEC. The P wave duration,V2 ST-segment elevation, TPaVR, cSS, and ST/TPaVR ratiowere significantly higher in Group 1. The ejection fraction (EF)and STaVR were significantly higher in Group 2. The EF (Oddsratio [OR]: 0.9, 95% confidence interval [CI]: 0.833–0.973;p=0.008), TPaVR (OR: 1.454, 95% CI: 1.074–1.967; p=0.015),and ST/TPaVR ratio (OR: 1.6, 95% CI: 1.307–1.959; p

Özet

Amaç: Biz bu çalışmada, akut anteriyor miyokart enfarktüslü (ME) hastalarda, yüzeyel elektrokardiyografide aVR derivasyonundaki iskemik değişiklikler ile sol ventrikül trombüsü (LVT) veya yüksek dereceli spontan ekokontrastı (SEK) arasındaki ilişkiyi araştırmayı amaçladık. Yöntemler: Yüzeyel EKG’de aVR derivasyonunda T dalga polaritesi (TPaVR) ve ST segment sapması (STaVR) sayısal olarak ölçüldü ve mutlak değerleri hesaplandı. Büyük mutlak değerin, küçük olana bölünmesiyle ST/TPaVR oranı elde edildi. Ekokardiyografik görüntülerden LVT veya yüksek dereceli SEK varlığı kaydedildi. Syntax skoru (SS), klinik SS (cSS) ve rezidüel SS’leri (rSS) anjiyografik görüntülerden hesaplandı. Bulgular: Otuz dört hastada LVT veya yüksek dereceli SEK mevcuttu ve Grup 1 olarak adlandırıldı. Yüz yetmiş hastada herhangi bir LVT ya da yüksek dereceli SEK yoktu ve bu hastalar Grup 2 olarak belirlendi. P dalgası süresi, V2 STsegment yüksekliği, TPaVR, cSS ve ST/TPaVR oranı, Grup 1’de anlamlı olarak daha yüksek bulundu. EF ve STaVR, grup 2’de anlamlı olarak yüksek bulundu. EF (OO: 0.9, %95 GA: 0.833–0.973, p=0.008), TPaVR (OO: 1.454, %95 GA: 1.074–1.967, p=0.015) ve ST/TPaVR oranı (OO: 1.6, %95 GA: 1.307–1.959, p

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Cite This Article

KOCA, H., İçen, Y. K., Dönmez, Y., KOÇ, M., Koç, A. S., Demirtaş, A. O., Ardıç, M. L., Karataş, F. (2022). Ischemic changes in lead aVR is associated with left ventricular thrombus or high-grade spontaneous echocontrast in patients with acute anterior myocardial infarction. Türk Kardiyoloji Derneği Arşivi, Cilt: 47 - Sayı: 3, 168–176. https://ajindex.com/articles/632046

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