Prognostic significance of QRS distortion and frontal QRS-T angle in patients with ST-elevation myocardial infarction

Han, Xiao; Chen, Zhongbo; Wang, Yinghui; Zhang, Jin; Zhang, Ying; Su, Qiang; Pan, Zhenghu; Sun, Jian; Wang, Yonggang

doi:10.1016/j.ijcard.2021.10.139

Cited by 6 publications

(1 citation statement)

References 45 publications

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“…These results assist physicians select high-risk individuals for extensive therapy. 41 Percutaneous chronic total occlusion (CTO) revascularization repolarized the ventricle. FQRS-Ta reduced after CTO PCI during 6-month follow-up.…”

Section: All-cause Mortalitymentioning

confidence: 99%

Cardiovascular diseases and frontal QRS-T angle

Askin,

Tanriverdi,

Poyraz

2023

Cor Vasa

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Rozdíl os komplexu QRS a vlny T (frontal QRS-T angle, fQRSTa) je elektrokardiografi cký parametr odrážející prostorový vztah mezi vektory depolarizace a repolarizace v srdci; určují jej úhly mezi vektory QRS a vlnou T ve frontální rovině. Širší fQRSTa je obecně spojován se zvýšenou komorovou ektopickou aktivitou, poruchou funkce levé komory a zvýšeným rizikem kardiovaskulárních onemocnění (KVO); podle několika studií je širší QRSTa spojen se zvýšeným rizikem rozvoje KVO včetně infarktu myokardu, srdečního selhání a náhlé srdeční smrti. Celkově lze z dostupných důkazů usuzovat, že fQRSTa je užitečný marker kardiovaskulárního rizika a může mít značný význam pro prevenci a léčbu KVO. Poznání vztahu mezi QRSTa a KVO si nicméně vyžádá další výzkum, který zároveň pomůže stanovit optimální využití tohoto ukazatele v klinické praxi.

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Section: All-cause Mortalitymentioning

confidence: 99%

Cardiovascular diseases and frontal QRS-T angle

Askin,

Tanriverdi,

Poyraz

2023

Cor Vasa

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Significance of QRS scoring system in left ventricular function recovery after acute myocardial infarction

Dan,

et al. 2024

ESC Heart Failure

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AimsThe Selvester scoring system has been derived from ECG parameters for estimating infarct size. However, there is still a lack of evidence for Selvester score as an alternative to cardiac magnetic resonance (CMR) myocardial injury makers for risk stratification and prediction of left ventricular function (LVF) recovery among patients with ST‐segment elevation myocardial infarction (STEMI).Methods and resultsThis multicentre observational study enrolled 328 STEMI patients (88.4% men, 57.3 ± 10.6 years of age) undergoing CMR examination 1 week post‐reperfusion therapy. Patients with baseline left ventricular ejection fraction (LVEF) < 50% underwent a follow‐up CMR 6 months later, categorized into baseline normal LVF (ejection fraction [EF] ≥ 50% at baseline, n = 155); recovered LVF (EF < 50% at baseline and ≥50% after 6 months, n = 69); and reduced LVF (EF < 50% at baseline and after 6 months, n = 104). The median follow‐up was 4 (3–4) years for all patients, with 61 patients experiencing major adverse cardiovascular event (MACEs). Patients with reduced LVF had a higher risk of MACEs than those with baseline normal LVF (P = 0.01), while the recovered LVF group had no significant difference (P > 0.05). A Selvester score >10 doubled the risk of MACEs in patients with systolic dysfunction (1.91 [1.02 to 3.58], P = 0.04). Additionally, Selvester score, baseline LVEF, transmural infarction, and peak CK‐MB were independent predictors of recovered LVF, with Selvester score providing incremental predictive value to peak CK‐MB in predicting recovered LVF (∆AUC = 0.07, P < 0.05).ConclusionsThe Selvester score improves risk stratification among STEMI patients beyond LVEF and provide independent and incremental information to clinical parameters in predicting recovered LVF.

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