Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) node early enough to compensate for the conduction problems that start in those regions. The stimulation can be delivered in multiple modes and can include waveforms of the same polarity delivered to a site within the region near the His bundle or para-Hisian regions of the heart associated with a low cardiac electrical asynchrony level or can include at least two single-phased superimposed waveforms of opposite polarity delivered through a pair of pacing electrodes relative to a reference electrode, which can be delivered to any site within the region near the His bundle or para-Hisian regions.

Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) node early enough to compensate for the conduction problems that start in those regions. The stimulation can include waveforms of the same polarity delivered to a site within the region near the His bundle or para-Hisian regions of the heart associated with a low cardiac electrical asynchrony level or can include at least two single-phased superimposed waveforms of opposite polarity delivered through a pair of pacing electrodes relative to a reference electrode, which can be delivered to any site within the region near the His bundle or para-Hisian regions. Defibrillation can also be used to terminate an arrhythmia.

Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) node. By performing the start of the activation of the HIS bundle or para-Hisian region early enough, electrical stimulation can be delivered fast enough to compensate for the conduction problems that start in those region, such that the activation wave front, as stimulated, transitions from the AV node to the His bundle in a normal, albeit electrically-supplemented, fashion. This stimulation not only helps resolve the conditions that trigger Brugada syndrome, but also resolves the asynchrony of the contraction of the heart.

Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) node. By performing the start of the activation of the HIS bundle or para-Hisian region early enough, electrical stimulation can be delivered fast enough to compensate for the conduction problems that start in those region, such that the activation wave front, as stimulated, transitions from the AV node to the His bundle in a normal, albeit electrically-supplemented, fashion. This stimulation not only helps resolve the conditions that trigger Brugada syndrome, but also resolves the asynchrony of the contraction of the heart.

Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) node. By performing the start of the activation of the HIS bundle or para-Hisian region early enough, electrical stimulation can be delivered fast enough to compensate for the conduction problems that start in those region, such that the activation wave front, as stimulated, transitions from the AV node to the His bundle in a normal, albeit electrically-supplemented, fashion. This stimulation not only helps resolve the conditions that trigger Brugada syndrome, but also resolves the asynchrony of the contraction of the heart.

Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) node early enough to compensate for the conduction problems that start in those regions. The stimulation can include waveforms of the same polarity delivered to a site within the region near the His bundle or para-Hisian regions of the heart associated with a low cardiac electrical asynchrony level or can include at least two single-phased superimposed waveforms of opposite polarity delivered through a pair of pacing electrodes relative to a reference electrode, which can be delivered to any site within the region near the His bundle or para-Hisian regions. Defibrillation can also be used to terminate an arrhythmia.

Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) node early enough to compensate for the conduction problems that start in those region. The stimulation can include waveforms of the same or different polarity delivered to a site within the region near the His bundle or para-Hisian regions of the heart associated with a low cardiac electrical asynchrony level or can include at least two single-phased superimposed waveforms of opposite polarity delivered through a pair of pacing electrodes relative to a reference electrode, which can be delivered to any site within the region near the His bundle or para-Hisian regions of the heart.

Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) node. By performing the start of the activation of the HIS bundle or para-Hisian region early enough, electrical stimulation can be delivered fast enough to compensate for the conduction problems that start in those region, such that the activation wave front, as stimulated, transitions from the AV node to the His bundle in a normal, albeit electrically-supplemented, fashion. This stimulation not only helps resolve the conditions that trigger Brugada syndrome, but also resolves the asynchrony of the contraction of the heart.

Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) node early enough to compensate for the conduction problems that start in those region. The stimulation can include waveforms of the same or different polarity delivered to a site within the region near the His bundle or para-Hisian regions of the heart associated with a low cardiac electrical asynchrony level or can include at least two single-phased superimposed waveforms of opposite polarity delivered through a pair of pacing electrodes relative to a reference electrode, which can be delivered to any site within the region near the His bundle or para-Hisian regions of the heart.

Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) nodeearly enough to compensate for the conduction problems that start in those region. The stimulation can include waveforms of the same polarity delivered to a site within the region near the His bundle or para-Hisian regions of the heart associated with a low cardiac electrical asynchrony level or can include at least two single-phased superimposed waveforms of opposite polarity delivered through a pair of pacing electrodes relative to a reference electrode, which can be delivered to any site within the region near the His bundle or para-Hisian regions of the heart.

Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) node. By performing the start of the activation of the HIS bundle or para-Hisian region early enough, electrical stimulation can be delivered fast enough to compensate for the conduction problems that start in those region, such that the activation wave front, as stimulated, transitions from the AV node to the His bundle in a normal, albeit electrically-supplemented, fashion. This stimulation not only helps resolve the conditions that trigger Brugada syndrome, but also resolves the asynchrony of the contraction of the heart.

Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) node. By performing the start of the activation of the HIS bundle or para-Hisian region early enough, electrical stimulation can be delivered fast enough to compensate for the conduction problems that start in those region, such that the activation wave front, as stimulated, transitions from the AV node to the His bundle in a normal, albeit electrically-supplemented, fashion. This stimulation not only helps resolve the conditions that trigger Brugada syndrome, but also resolves the asynchrony of the contraction of the heart.

Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) nodeearly enough to compensate for the conduction problems that start in those region. The stimulation can include waveforms of the same polarity delivered to a site within the region near the His bundle or para-Hisian regions of the heart associated with a low cardiac electrical asynchrony level or can include at least two single-phased superimposed waveforms of opposite polarity delivered through a pair of pacing electrodes relative to a reference electrode, which can be delivered to any site within the region near the His bundle or para-Hisian regions of the heart.

Abstract: Brugada syndrome and related forms of ion channelopathies, including ventricular asynchrony of contraction, originate in the region near the His bundle or para-Hisian regions of the heart. Manifestations of Brugada syndrome can be corrected by delivering endocardial electrical stimulation coincident to the activation wave front propagated from the atrioventricular (AV) node. By performing the start of the activation of the HIS bundle or para-Hisian region early enough, electrical stimulation can be delivered fast enough to compensate for the conduction problems that start in those region, such that the activation wave front, as stimulated, transitions from the AV node to the His bundle in a normal, albeit electrically-supplemented, fashion. This stimulation not only helps resolve the conditions that trigger Brugada syndrome, but also resolves the asynchrony of the contraction of the heart.

Abstract: One embodiment provides a system for cardiac stimulation optimization utilizing cardiac asynchrony and pulse pressure data. The system includes: an analysis circuitry to receive cardiac signals collected at two locations of a patient's heart during an application to the heart of stimulation in accordance with multiple (VV) delay intervals, calculate an asynchrony index for the VV delay intervals, and determine one of the VV intervals as optimal based on the asynchrony index for that VV interval; an implantable stimulation device to cycle through the VV intervals while applying the stimulation, and further configured to cycle through atrioventricular (AV) delay intervals while applying additional stimulation in accordance with the optimal VV delay interval; and an arterial pulse pressure sensor to measure arterial pulse pressure during the application of the additional stimulation, wherein the analysis circuitry determines one of the AV delay intervals as optimal based on the arterial pulse pressure measured.

Abstract: One embodiment provides a system for cardiac stimulation optimization utilizing cardiac asynchrony and pulse pressure data. The system includes: an analysis circuitry to receive cardiac signals collected at two locations of a patient's heart during an application to the heart of stimulation in accordance with multiple (VV) delay intervals, calculate an asynchrony index for the VV delay intervals, and determine one of the VV intervals as optimal based on the asynchrony index for that VV interval; an implantable stimulation device to cycle through the VV intervals while applying the stimulation, and further configured to cycle through atrioventricular (AV) delay intervals while applying additional stimulation in accordance with the optimal VV delay interval; and an arterial pulse pressure sensor to measure arterial pulse pressure during the application of the additional stimulation, wherein the analysis circuitry determines one of the AV delay intervals as optimal based on the arterial pulse pressure measured.

Abstract: One embodiment provides a system for determination and utilization of cardiac electrical asynchrony data. The system includes an analysis circuitry including a processor and a memory, the analysis circuitry configured to: obtain a plurality of sets of cardiac signals collected in at least two locations of a heart of a patient, the signals comprising at least one of surface electrocardiography signals and pseudo-surface ECG signals; detect one or more QRS complexes for each of the sets based on the cardiac signals for that set; obtain one or more cross-correlation signals, each of the cross-correlation signals being between at least two of the signal sets and being obtained using the detected QRS complexes from the signal sets; and calculate one or more asynchrony indices using one or more of the cross-correlation signals, each of the asynchrony indices being indicative of a level of asynchrony between the at least two locations.

Abstract: One embodiment provides a system for determination and utilization of cardiac electrical asynchrony data. The system includes an analysis circuitry including a processor and a memory, the analysis circuitry configured to: obtain a plurality of sets of cardiac signals collected in at least two locations of a heart of a patient, the signals comprising at least one of surface electrocardiography signals and pseudo-surface ECG signals; detect one or more QRS complexes for each of the sets based on the cardiac signals for that set; obtain one or more cross-correlation signals, each of the cross-correlation signals being between at least two of the signal sets and being obtained using the detected QRS complexes from the signal sets; and calculate one or more asynchrony indices using one or more of the cross-correlation signals, each of the asynchrony indices being indicative of a level of asynchrony between the at least two locations.

Abstract: Various aspects of the present disclosure are directed toward an asynchrony index that is related to data of a subject's heart. The asynchrony index includes intra-ventricular or inter-ventricular electrical asynchrony data. The intra-ventricular or inter-ventricular electrical asynchrony data can be specific to a certain subject, and indicative of a different conditions specific to that subject.

Abstract: Various aspects of the present disclosure are directed toward an asynchrony index that is related to data of a subject's heart. The asynchrony index includes intra-ventricular or inter-ventricular electrical asynchrony data. The intra-ventricular or inter-ventricular electrical asynchrony data can be specific to a certain subject, and indicative of a different conditions specific to that subject.