Validation of electrocardiographic criteria for identifying left ventricular dysfunction in patients with previous myocardial infarction

Panicker, Gopi Krishna; Narula, Dhiraj; Albert, Christine M.; Lee, Daniel; Kothari, Snehal; Goldberger, Jeffrey J.; Cook, Nancy R.; Schaechter, Andi; Kim, Eun-Jung; Moorthy, M. Vinayaga; Pester, Julie; Chatterjee, Neal A.; Kadish, Alan H.; Karnad, Dilip R.

doi:10.1111/anec.12812

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…On the other hand, our study showed a positive correlation between QRS duration and hospitalization duration, intensive care need, all-cause mortality and cardiac mortality. These findings are in line with the results of previous studies that showed the relationship between QRS duration and both myocardial dysfunction and sudden cardiac death [ 22 , 24 ].…”

Section: Discussionsupporting

confidence: 93%

Fragmented QRS on surface electrocardiography as a predictor of cardiac mortality in patients with SARS-CoV-2 infection

Yıldırım

Karaca

Yılmaz

et al. 2021

Journal of Electrocardiology

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Aims Although severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection is mainly a respiratory system disease, recent studies reported that cardiac injury is associated with poor outcomes in this population. There are few studies which assessed standard electrocardiogram (ECG) as a prognostic tool during the course of SARS-CoV-2 infection. The aim of this study is to identify the relationship between of ECG parameters and prognosis of patients infected with SARS-CoV-2. Method and results A total of 114 consecutive patients with a confirmed diagnosis of SARS-CoV-2 infection between March 2020 and May 2020 were included in the study. Standard 12‑lead surface ECG was reviewed for presence of fragmented QRS (fQRS), abnormal Q wave, T wave inversion, and duration of QRS. fQRS was observed in 36.8% ( n = 42) of the patients who had SARS-CoV-2. Patient groups with and without fQRS did not differ in terms of age, gender, the presence of comorbid diseases and medical treatment. Hospitalization duration, intensive care unit(ICU) requirement, all-cause mortality, and cardiac mortality were found to be higher in patients with fQRS (all p values <0.05). There was a positive correlation between QRS duration and duration of hospital stay ( p < 0.001, r = 0.421). QRS duration was also found to be associated with intensive care need, all-cause mortality, and cardiac mortality. Conclusion Our data shows that QRS duration and the presence of fQRS on standard ECG can help to identify patients with worse clinical outcome admitted for SARS-CoV-2 infection.

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Section: Discussionsupporting

confidence: 93%

Fragmented QRS on surface electrocardiography as a predictor of cardiac mortality in patients with SARS-CoV-2 infection

Yıldırım

Karaca

Yılmaz

et al. 2021

Journal of Electrocardiology

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“…Both ECG and conventional chest radiography are suitable for medical checkups, but limited for assessment of cardiac function. 22,25 Echocardiography is the most commonly used examination used to assess cardiac function, but requires a long examination time and well-trained operators. For this reason, echocardiography is rarely performed at general medical checkups.…”

Section: Future Prospects Of Dcrmentioning

confidence: 99%

Discriminative Ability of Dynamic Chest Radiography to Identify Left Ventricular Dysfunction

Okamoto,

Miyatake,

Kodama

et al. 2023

Circ J

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Background: Dynamic chest radiography (DCR) produces sequential radiographs within a short examination time. It is also inexpensive and only uses a low dose of radiation. Because of the lack of reports of evaluating cardiac function using DCR in humans, we investigated its discriminative ability for left ventricular (LV) dysfunction in a study cohort. Methods and Results:We analyzed the DCR pixel values of 4 circular regions of interest (ROIs) in the hearts of 61 patients with cardiovascular disease and 10 healthy volunteers. We evaluated the relationship between changes in pixel value in the heart and the LV ejection fraction (LVEF) by echocardiography. We constructed receiver operating characteristic (ROC) curves to evaluate whether the percent change in pixel value (%∆pixel value) could be used to identify patients with reduced LVEF. A total of 21 patients had reduced LVEF (LVEF <50%), and 40 had preserved LVEF (LVEF ≥50%). The correlation between LVEF and %∆pixel value in each ROI was significant, and the area under the ROC curve of the %∆pixel values for identifying patients with reduced LVEF was satisfactory (0.808-0.827) in 3 ROIs where the entire circular area was within the cardiac shadow.Conclusions: LV dysfunction can be detected by changes in the pixel value on DCR.

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Correlation of the Left Ventricular Systolic Dysfunction and Ventricular Depolarization in a Post-Infarction Model of Chronic Heart Failure

Roshchevskaya,

Suslonova,

Smirnova

et al. 2024

Bull Exp Biol Med

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Validation of electrocardiographic criteria for identifying left ventricular dysfunction in patients with previous myocardial infarction

Cited by 6 publications

References 16 publications

Fragmented QRS on surface electrocardiography as a predictor of cardiac mortality in patients with SARS-CoV-2 infection

Fragmented QRS on surface electrocardiography as a predictor of cardiac mortality in patients with SARS-CoV-2 infection

Discriminative Ability of Dynamic Chest Radiography to Identify Left Ventricular Dysfunction

Correlation of the Left Ventricular Systolic Dysfunction and Ventricular Depolarization in a Post-Infarction Model of Chronic Heart Failure

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