Negative sequence voltages in spontaneous atrial fibrillation or flutter

Carson, Wangden; Tseng, Yung‐Zu

doi:10.1016/j.ijcard.2007.10.056

Cited by 2 publications

(4 citation statements)

References 31 publications

(40 reference statements)

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“…Such an analysis was used to establish a biological model of the heart block in the study of Cingolani et al [ 14 ] and real-time tracking of intrathoracic impedance sensors in the study of DeArmond et al [ 15 ]. Similarly, Carson and Tseng [ 16 ] performed regression analysis on various indicators of ECG of patients. These studies have highlighted the advantages of mathematical analysis in medical research to better display the research results and conclusions.…”

Section: Resultsmentioning

confidence: 99%

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Evidence-Based Analysis of the Emergency Temporary Cardiac Pacing (Electrical Stimulation from Metal Wire Electrode)

Lin

Tan

et al. 2021

Bioinorganic Chemistry and Applications

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The patient’s Cr (creatinine), BUN (blood urea nitrogen), HBG (hemoglobin), VT (ventricular tachycardia), pacing frequency, puncture point, emergency to permanent pacing time, pacing current (mA), pacing threshold current (mA), and admission diagnosis data were collected. The data were subjected to frequency statistics, curve regression analysis, PLS regression analysis, adjustment analysis, chi-square test, ridge regression analysis, discriminant analysis, negative binomial regression analysis, Poisson regression analysis, and stepwise regression analysis. Some findings include the following: (1) Cr has a significant positive effect on HBG, and BUN has a significant negative effect on HBG. (2) VT has a negative correlation with age and a positive correlation with CK-MB and CK (creatinine kinase). (3) Myocarditis has a negative correlation with age and a significant positive correlation with CTnI (cardiac troponin I). (4) AST (aspartate transaminase) and ALT (alanine aminotransferase) have a significant positive impact on DDI (D-dimer), while CTnI has a significant negative impact on DDI. MYO (myoglobin) has no impact relationship to DDI. (5) ALT has a significant positive relationship with APTT (partial thromboplastin time). (6) Alb (albumin) and TBIL (total bilirubin) have a significant positive effect on PLT (platelet) count, while pro-BNP (B-type natriuretic peptide) and MYO have a significant negative effect on PLT. (7) CK has a significant positive effect on INR (international normalized ratio). (8) The relationship between sinus node dysfunction and VT significantly affect the pacing frequency (beats/minute). For third-degree atrioventricular block, different samples of sinus node dysfunction showed significant differences. (9) There is a significant positive correlation between pacing current (mA) and pacing threshold current (mA). (10) There was a significant positive correlation between perceived voltage (mV) and the time from emergency to permanent pacing. Admission diagnosis has a significant positive impact on the time from emergency to permanent pacing. The change (increase) in time from emergency to permanent pacing was 1.137-fold when an additional condition was diagnosed on admission.

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Section: Resultsmentioning

confidence: 99%

“…e indication of TTCP include sinus node dysfunction (SND) was 6, atrioventricular block (AVB) was 16, ventricle tachycardia (VT) was 4. 19 patients had severe symptoms, either with syncope (16) or after CPR (3). e age was in the range of 64.55 ± 8.75. e collected raw data is shown in Supplementary Materials.…”

Section: Objective and Methodsmentioning

confidence: 99%

Evidence-Based Analysis of the Emergency Temporary Cardiac Pacing (Electrical Stimulation from Metal Wire Electrode)

Lin

Tan

et al. 2021

Bioinorganic Chemistry and Applications

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“…This problem is very difficult to be observed in ECG due to its twodimensional representation. A study carried out by Carson and Tseng in [10] shows the importance of using VCG signals to investigate atrial fibrillation causes through the investigation of the direction of electrical field in P wave. In a healthy individual, the P wave direction should be anti-clockwise, where the three dimensional representation of VCG evidently reveals the direction of spatial vector offering a clear picture of the problem.…”

Section: B Vcg Versus Ecgmentioning

confidence: 99%

“…Cartoon used by Wangden Carson and Yung-Zu Tseng in[10] to show the ability of ECG and VCG to see the abnormal inscription direction of the P loop.…”

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confidence: 99%

A portable spatial monitoring system for autonomous heart diagnosis

Meireles

Figueiredo

Lopes

2013

2013 IEEE 15th International Conference on E-Health Networking, Applications and Services (Healthcom 2013)

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Heart disorders are one of the most problematic issues of human health. There are currently many efforts to reduce the time for first assistance based on electronic systems that continuously records the electric heart activity for further inspection and anomalies detection. The most popular are portable monitoring systems based on the Electrocardiogram (ECG) signal. However, an efficient detection of heart problems still being a big challenge mainly due to the difficulty of accessing some specific cardiac problems and signal variations between different patients. A different technique for heart diagnosing is based on spatial recording of electrical heart activity, commonly known as Vectorcardiogram (VCG). VCG is pointed by several authors as a more efficient tool than ECG for heart inspection and problem detection. This research explores the possibility of using VCG signals in a portable device for constant heart monitoring and injuries detection. It is presented a portable solution with VCG recording and digital signal processing for automatic diagnosis. This paper covers the aspects of the VCG signal and its ability to be converted into a 12-lead ECG signal. It is also presented a system for automatic diagnosis based on VCG which is based on a multichannel portable hardware platform to support noise cancellation, parameter extraction and decision making algorithms.

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Negative sequence voltages in spontaneous atrial fibrillation or flutter

Cited by 2 publications

References 31 publications

Evidence-Based Analysis of the Emergency Temporary Cardiac Pacing (Electrical Stimulation from Metal Wire Electrode)

Evidence-Based Analysis of the Emergency Temporary Cardiac Pacing (Electrical Stimulation from Metal Wire Electrode)

A portable spatial monitoring system for autonomous heart diagnosis

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