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unipolar electrograms  (MathWorks Inc)


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    MathWorks Inc unipolar electrograms
    Unipolar Electrograms, supplied by MathWorks Inc, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/unipolar+electrogram/pm31934784-55-0-12
    Average 90 stars, based on 1 article reviews
    unipolar electrograms - by Bioz Stars, 2026-10
    90/100 stars

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    Related Articles

    Software:

    Article Title: Prospective STAR-Guided Ablation in Persistent Atrial Fibrillation Using Sequential Mapping With Multipolar Catheters
    Article Snippet: The unipolar electrograms, electrode coordinates and anatomical data were imported into Matlab (Matlab 2017b, MathWorks MA, USA) and using a custom written script, the sequential STAR maps were created.

    Article Title: Profibrillatory Structural and Functional Properties of the Atrial-Pulmonary Junction in the Absence of Remodeling
    Article Snippet: The unipolar electrograms (four per sheep: two in the proximal RPV and two in the distal RPV) were manually analyzed using a custom-made software based on MATLAB (MathWorks, Natick, MA, United States).

    Article Title: Study protocol: MyoFit46—the cardiac sub-study of the MRC National Survey of Health and Development
    Article Snippet: D Signal averaging is performed using in house, customized software (Matlab, MathWorks, Natick, MA) and unipolar electrograms are then combined with Amira software heart torso geometry by solving the inverse problem of ECGI in collaboration with the Rudi laboratory.

    Article Title: Ventricular stimulus site influences dynamic dispersion of repolarization in the intact human heart
    Article Snippet: Unipolar electrograms were processed offline using MATLAB_R2014a (The MathWorks, Natick, MA, 2014).

    Sampling:

    Article Title: Prospective STAR-Guided Ablation in Persistent Atrial Fibrillation Using Sequential Mapping With Multipolar Catheters
    Article Snippet: The unipolar electrograms, electrode coordinates and anatomical data were imported into Matlab (Matlab 2017b, MathWorks MA, USA) and using a custom written script, the sequential STAR maps were created.

    Article Title: Profibrillatory Structural and Functional Properties of the Atrial-Pulmonary Junction in the Absence of Remodeling
    Article Snippet: The unipolar electrograms (four per sheep: two in the proximal RPV and two in the distal RPV) were manually analyzed using a custom-made software based on MATLAB (MathWorks, Natick, MA, United States).

    Article Title: Study protocol: MyoFit46—the cardiac sub-study of the MRC National Survey of Health and Development
    Article Snippet: D Signal averaging is performed using in house, customized software (Matlab, MathWorks, Natick, MA) and unipolar electrograms are then combined with Amira software heart torso geometry by solving the inverse problem of ECGI in collaboration with the Rudi laboratory.

    Article Title: Ventricular stimulus site influences dynamic dispersion of repolarization in the intact human heart
    Article Snippet: Unipolar electrograms were processed offline using MATLAB_R2014a (The MathWorks, Natick, MA, 2014).



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    a: The endocardial <t>electrogram</t> <t>(EGM)</t> during an inappropriate back-up. Inappropriate back-up pacing necessarily followed serial narrow waveforms. The interval of back-up pacing in this case corresponded to the interval of managed ventricular pacing (MVP). Subsequent back-up pacing did not occur because of right ventricular (RV) pacing after a wide waveform that occurred within 1300 ms. b: Intracardiac conduction of the wide waveforms. Wide waveforms corresponded to the left bundle branch block–type morphology of the QRS complex on the 12-lead electrocardiogram and were presumed to represent septal pacing. The conduction interval between the RV septum and the His bundle was about 40 ms because the interval of the leads with narrow waveforms, which represented the conduction interval between the His bundle and the myocardium, was 50 ms. c: Intracardiac conduction of the narrow waveforms. The narrow waveforms were presumed to represent His bundle capture; therefore, the conduction interval between the His bundle and the myocardium was 50 ms, as described. Ap = HBP pacing; HB = His bundle; HBP = His bundle pacing; LAF = left anterior fascicle; LPF = left posterior fascicle; RBB = right bundle branch; Vp = RV pacing; Vs = RV sensing.
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    a: The endocardial <t>electrogram</t> <t>(EGM)</t> during an inappropriate back-up. Inappropriate back-up pacing necessarily followed serial narrow waveforms. The interval of back-up pacing in this case corresponded to the interval of managed ventricular pacing (MVP). Subsequent back-up pacing did not occur because of right ventricular (RV) pacing after a wide waveform that occurred within 1300 ms. b: Intracardiac conduction of the wide waveforms. Wide waveforms corresponded to the left bundle branch block–type morphology of the QRS complex on the 12-lead electrocardiogram and were presumed to represent septal pacing. The conduction interval between the RV septum and the His bundle was about 40 ms because the interval of the leads with narrow waveforms, which represented the conduction interval between the His bundle and the myocardium, was 50 ms. c: Intracardiac conduction of the narrow waveforms. The narrow waveforms were presumed to represent His bundle capture; therefore, the conduction interval between the His bundle and the myocardium was 50 ms, as described. Ap = HBP pacing; HB = His bundle; HBP = His bundle pacing; LAF = left anterior fascicle; LPF = left posterior fascicle; RBB = right bundle branch; Vp = RV pacing; Vs = RV sensing.
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    a: The endocardial <t>electrogram</t> <t>(EGM)</t> during an inappropriate back-up. Inappropriate back-up pacing necessarily followed serial narrow waveforms. The interval of back-up pacing in this case corresponded to the interval of managed ventricular pacing (MVP). Subsequent back-up pacing did not occur because of right ventricular (RV) pacing after a wide waveform that occurred within 1300 ms. b: Intracardiac conduction of the wide waveforms. Wide waveforms corresponded to the left bundle branch block–type morphology of the QRS complex on the 12-lead electrocardiogram and were presumed to represent septal pacing. The conduction interval between the RV septum and the His bundle was about 40 ms because the interval of the leads with narrow waveforms, which represented the conduction interval between the His bundle and the myocardium, was 50 ms. c: Intracardiac conduction of the narrow waveforms. The narrow waveforms were presumed to represent His bundle capture; therefore, the conduction interval between the His bundle and the myocardium was 50 ms, as described. Ap = HBP pacing; HB = His bundle; HBP = His bundle pacing; LAF = left anterior fascicle; LPF = left posterior fascicle; RBB = right bundle branch; Vp = RV pacing; Vs = RV sensing.
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    a: The endocardial <t>electrogram</t> <t>(EGM)</t> during an inappropriate back-up. Inappropriate back-up pacing necessarily followed serial narrow waveforms. The interval of back-up pacing in this case corresponded to the interval of managed ventricular pacing (MVP). Subsequent back-up pacing did not occur because of right ventricular (RV) pacing after a wide waveform that occurred within 1300 ms. b: Intracardiac conduction of the wide waveforms. Wide waveforms corresponded to the left bundle branch block–type morphology of the QRS complex on the 12-lead electrocardiogram and were presumed to represent septal pacing. The conduction interval between the RV septum and the His bundle was about 40 ms because the interval of the leads with narrow waveforms, which represented the conduction interval between the His bundle and the myocardium, was 50 ms. c: Intracardiac conduction of the narrow waveforms. The narrow waveforms were presumed to represent His bundle capture; therefore, the conduction interval between the His bundle and the myocardium was 50 ms, as described. Ap = HBP pacing; HB = His bundle; HBP = His bundle pacing; LAF = left anterior fascicle; LPF = left posterior fascicle; RBB = right bundle branch; Vp = RV pacing; Vs = RV sensing.
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    a: The endocardial <t>electrogram</t> <t>(EGM)</t> during an inappropriate back-up. Inappropriate back-up pacing necessarily followed serial narrow waveforms. The interval of back-up pacing in this case corresponded to the interval of managed ventricular pacing (MVP). Subsequent back-up pacing did not occur because of right ventricular (RV) pacing after a wide waveform that occurred within 1300 ms. b: Intracardiac conduction of the wide waveforms. Wide waveforms corresponded to the left bundle branch block–type morphology of the QRS complex on the 12-lead electrocardiogram and were presumed to represent septal pacing. The conduction interval between the RV septum and the His bundle was about 40 ms because the interval of the leads with narrow waveforms, which represented the conduction interval between the His bundle and the myocardium, was 50 ms. c: Intracardiac conduction of the narrow waveforms. The narrow waveforms were presumed to represent His bundle capture; therefore, the conduction interval between the His bundle and the myocardium was 50 ms, as described. Ap = HBP pacing; HB = His bundle; HBP = His bundle pacing; LAF = left anterior fascicle; LPF = left posterior fascicle; RBB = right bundle branch; Vp = RV pacing; Vs = RV sensing.
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    Image Search Results


    a: The endocardial electrogram (EGM) during an inappropriate back-up. Inappropriate back-up pacing necessarily followed serial narrow waveforms. The interval of back-up pacing in this case corresponded to the interval of managed ventricular pacing (MVP). Subsequent back-up pacing did not occur because of right ventricular (RV) pacing after a wide waveform that occurred within 1300 ms. b: Intracardiac conduction of the wide waveforms. Wide waveforms corresponded to the left bundle branch block–type morphology of the QRS complex on the 12-lead electrocardiogram and were presumed to represent septal pacing. The conduction interval between the RV septum and the His bundle was about 40 ms because the interval of the leads with narrow waveforms, which represented the conduction interval between the His bundle and the myocardium, was 50 ms. c: Intracardiac conduction of the narrow waveforms. The narrow waveforms were presumed to represent His bundle capture; therefore, the conduction interval between the His bundle and the myocardium was 50 ms, as described. Ap = HBP pacing; HB = His bundle; HBP = His bundle pacing; LAF = left anterior fascicle; LPF = left posterior fascicle; RBB = right bundle branch; Vp = RV pacing; Vs = RV sensing.

    Journal: HeartRhythm Case Reports

    Article Title: A case of inappropriate pacing due to intermittent His bundle capture and the post–atrial pacing ventricular blanking period of managed ventricular pacing

    doi: 10.1016/j.hrcr.2022.06.001

    Figure Lengend Snippet: a: The endocardial electrogram (EGM) during an inappropriate back-up. Inappropriate back-up pacing necessarily followed serial narrow waveforms. The interval of back-up pacing in this case corresponded to the interval of managed ventricular pacing (MVP). Subsequent back-up pacing did not occur because of right ventricular (RV) pacing after a wide waveform that occurred within 1300 ms. b: Intracardiac conduction of the wide waveforms. Wide waveforms corresponded to the left bundle branch block–type morphology of the QRS complex on the 12-lead electrocardiogram and were presumed to represent septal pacing. The conduction interval between the RV septum and the His bundle was about 40 ms because the interval of the leads with narrow waveforms, which represented the conduction interval between the His bundle and the myocardium, was 50 ms. c: Intracardiac conduction of the narrow waveforms. The narrow waveforms were presumed to represent His bundle capture; therefore, the conduction interval between the His bundle and the myocardium was 50 ms, as described. Ap = HBP pacing; HB = His bundle; HBP = His bundle pacing; LAF = left anterior fascicle; LPF = left posterior fascicle; RBB = right bundle branch; Vp = RV pacing; Vs = RV sensing.

    Article Snippet: A unipolar electrogram (EGM) was recorded from the lead tip and displayed on an electrophysiology recording system (Bard; Boston Scientific, Lowell, MA) and a Medtronic pacing system analyzer (model 2290).

    Techniques: Blocking Assay