Reliability of ST-Segment Shifts in the Synthesized V3R–V5R Leads After Coronary Balloon Inflations During Percutaneous Coronary Intervention

Tamura, Akira; Torigoe, Kojun; Goto, Yuki; Naono, Shigeru; Shinozaki, Kazuo; Zaizen, Hirofumi; Takahashi, Naohiko

doi:10.1016/j.amjcard.2014.07.037

Cited by 8 publications

(5 citation statements)

References 16 publications

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“…There are some previous papers reporting a good correlation between synthesized and actual right-sided leads [9][10][11][12]. Correlation coefficients in ECG morphologies between synthesized and actual right-sided chest leads were 0.88-0.97 (p < 0.001) [10].…”

Section: Electrocardiographic Recordings and Data Processing To Obtaimentioning

confidence: 84%

“…Ventricular outflow tract arrhythmias of different origins have features that are dissociable on synthesized rightsided chest ECGs [9,10]. In addition, the usefulness of synthesized right-sided chest ECGs for diagnosing Brugada syndrome [7] and acute myocardial infarctions involving the RV wall [11,12] has been reported. Synthesized right-sided chest ECGs, which can be derived quickly and non-invasively from standard 12-lead ECG data, can be beneficial to both physicians and patients for early diagnosis and treatment of APE.…”

Section: Potential Of Synthesized Right-sided Chest Ecgs For Diagnosimentioning

confidence: 99%

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Characteristics of synthesized right-sided chest electrocardiograms in patients with acute pulmonary embolism

Kusayama

Furusho

Kinoshita

et al. 2019

Journal of Cardiology

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Background: The significance of right-sided chest lead electrocardiogram (ECG) abnormalities in acute pulmonary embolism (APE) is unclear. This study evaluated the characteristics of such abnormalities in APE patients. Methods: This retrospective study included consecutive patients who were diagnosed with APE by contrast-enhanced computed tomography or pulmonary artery angiography. A standard 12-lead ECG and a synthesized right-sided chest ECG were obtained from these patients. Waveform differences were noted between the acute and post-treatment phases. Results: In total, 56 APE patients (18 men and 38 women, mean age 66.7 AE 13.3 years) were included. Traditional ECG findings, such as right-axis deviation, the S 1 Q 3 T 3 pattern, and clockwise rotation, were found in relatively few patients (14.3%, 32.1%, and 21.4%, respectively). In some cases, a negative T wave in standard 12-lead ECGs was observed in leads III, V1, and V2 (46.4%, 60.7%, and 39.9%, respectively). Syn-V3R ECG showed a higher frequency of negative T waves (66.1%) at the onset and significantly (p < 0.01) decreased at the follow-up. Multiple logistic regression analyses for differentiating APE revealed that the negative T waves only in lead syn-V3R were significantly related (odds ratio: 6.95, 95% confidence interval: 2.50-19.32, p < 0.001). Conclusions:The presence of a negative T wave in a synthesized right-sided chest ECG, particularly in the V3R lead, is a new and distinctive finding denoting pulmonary embolism. To confirm the utility of this characteristic using synthesized right-sided chest ECGs for the diagnosis of APE, further studies with larger populations will be required.

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Section: Electrocardiographic Recordings and Data Processing To Obtaimentioning

confidence: 84%

Section: Potential Of Synthesized Right-sided Chest Ecgs For Diagnosimentioning

confidence: 99%

Characteristics of synthesized right-sided chest electrocardiograms in patients with acute pulmonary embolism

Kusayama

Furusho

Kinoshita

et al. 2019

Journal of Cardiology

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“…In addition, Katoh et al reported that comparison between the waveforms obtained from the synthesized 18-lead ECG and the actually recorded waveforms in patients transported to the coronary care unit complaining of chest pain revealed high correlations in all ECG parameters, such as the P-wave, QRS, QT time and T-wave characteristics [16]. Recently, Tamura et al reported that there was a strong positive correlation between the degree of ST elevation in syn-V 3R , syn-V 4R and syn-V 5R and the actually recorded degree of ST elevation in V 3R , V 4R and V 5R when the relevant coronary artery was occluded [17].…”

Section: Discussionmentioning

confidence: 97%

Usefulness of synthesized 18-lead electrocardiography in the diagnosis of ST-elevation myocardial infarction: A pilot study

Ashida

Tani

Nagao

et al. 2017

The American Journal of Emergency Medicine

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“…Still, they are not associated with cardiac mortality (p = 0.9). Data from previous studies indicate that the synthesized ECG can detect abnormalities concerning the right side of the heart with high sensitivity and specificity [33,34]. Therefore, in this study, 18-leads synthesized ECG was used to detect RV lead pathological changes and the influence on hospitalization and mortality among ESRD patients.…”

Section: Discussionmentioning

confidence: 99%

Pathological right ventricular changes in synthesized electrocardiogram in end-stage renal disease patients and their association with mortality and cardiac hospitalization: a cohort study

et al. 2022

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Background Right ventricular (RV) function is an important prognostic predictor for end-stage renal disease (ESRD) patients. Non-invasive evaluation of RV function by simple electrocardiogram (ECG) is not yet evident. The purpose of this article was to investigate the presence and association of pathological right ventricular changes in synthesized ECG with cardiac hospitalization and mortality. Methods A prospective cohort study of 137 ESRD patients (mean age: 56 years) were recruited from the hemodialysis unit in An-Najah National University Hospital, Nablus, Palestine. Synthesized ECG was done right before the hemodialysis (HD) session. The pathological right ventricular changes were recorded for each patient. The relationship between pathological RV changes and mortality, cardiac and non-cardiac hospitalization was assessed through a 6-months follow-up period. Results Right ventricular Q wave was found in 2.2% of patients, while right ventricular ST elevation was found in 0.7% of patients, and right ventricular negative T wave was found in 0.7% of patients. During the 6-month period of follow-up, 36 (26.3%) patients were hospitalized, nine patients (6.6%) due to cardiac causes. A total of 8 (5.83%) patients died, out of those 4 patients (2.91%) due to cardiac causes. Using Fisher’s exact test, there was a significant association between pathological abnormalities in synthesized ECG and hospitalization among hemodialysis patients, (p = 0.047). Pathological changes in synthesized ECG were less prevalent in non-cardiac hospitalizations than in cardiac hospitalizations. Conclusions The presence of pathological RV synthesized ECG changes can predict cardiac hospitalization in ESRD patients. Synthesized ECG is a good available tool that can be easily performed in ESRD patients. To determine whether Synthesized ECG can be used as a screening tool for pathological RV changes in a dialysis patients, more research with a larger number of patients and a longer follow-up period is required.

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Reliability of ST-Segment Shifts in the Synthesized V3R–V5R Leads After Coronary Balloon Inflations During Percutaneous Coronary Intervention

Cited by 8 publications

References 16 publications

Characteristics of synthesized right-sided chest electrocardiograms in patients with acute pulmonary embolism

Characteristics of synthesized right-sided chest electrocardiograms in patients with acute pulmonary embolism

Usefulness of synthesized 18-lead electrocardiography in the diagnosis of ST-elevation myocardial infarction: A pilot study

Pathological right ventricular changes in synthesized electrocardiogram in end-stage renal disease patients and their association with mortality and cardiac hospitalization: a cohort study

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