Intracardiac electrogram characteristics of intramural outflow tract ventricular arrhythmias

Yalın, Kıvanç; Aksu, Tolga; İkitimur, Barış; Onder, Sukriye Ebru; Soysal, Ali Uğur; Ozturk, Sila; Tokdil, Kardelen Nafia Inan Ohtaroglu; Yalman, Hakan; Mutlu, Deniz; Atıcı, Adem; Okşul, Metin; Baysal, Erkan; Bilge, Ahmet Kaya

doi:10.1007/s10840-022-01374-y

Cited by 3 publications

(3 citation statements)

References 20 publications

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“…In addition, specific ECG abnormalities have been correlated with the occurrence of certain major adverse cardiac events (MACE) ( Ekeloef et al, 2016 ). For instance, extended QRS duration, QS pattern, and irregular ST-segment/T-wave have been linked to coronary heart disease (CHD) ( Yalin et al, 2023 ; Lavall et al, 2020 ). Increased QRS duration, left QRS-axis deviation, atypical ST-segment/T-wave, and tall R-wave have been associated with incident heart failure (HF) ( Lavall et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Effect of the index of cardiac electrophysiological balance on major adverse cardiovascular events in patients with diabetes complicated with coronary heart disease

Lin,

Zhou,

Wang

et al. 2023

PeerJ

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Purpose To investigate the prognostic value of the index of cardio-electrophysiological balance (ICEB) and its association with major adverse cardiac events (MACE) and cardiovascular death in diabetic patients complicated with coronary heart disease. Methods A total of 920 diabetic patients were enrolled in this longitudinal study. Participants were categorized into three groups based on their ICEB levels: normal ICEB, low ICEB, and high ICEB. The primary outcome was the occurrence of MACE, and secondary outcomes included cardiovascular death, coronary heart disease (CHD), heart failure (HF), and sudden cardiac arrest (SCA). Patients were followed for a median period of 3.26 years, and the associations between ICEB levels and various outcomes were evaluated. Results Over the follow-up period, 46 (5.0%) MACE were observed in the normal ICEB group, 57 (6.2%) in the low ICEB group, and 62 (6.8%) in the high ICEB group. Elevated ICEB levels were found to be associated with a higher risk of MACE and cardiovascular death. A significant relationship between ICEB levels and the risk of MACE was observed for both genders. The risk of MACE increased with each unit increment in the ICEB index. However, the two-stage linear regression model did not outperform the single-line linear regression models in determining the threshold effect. Conclusion This study demonstrates the potential utility of ICEB, derived from a standard non-invasive ECG, as a prognostic tool for predicting MACE and cardiovascular death in diabetic patients complicated with CVD. The associations between ICEB levels and the risk of MACE highlight the importance of understanding cardiac electrophysiological imbalances and their implications in CVD.

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Section: Discussionmentioning

confidence: 99%

Effect of the index of cardiac electrophysiological balance on major adverse cardiovascular events in patients with diabetes complicated with coronary heart disease

Lin,

Zhou,

Wang

et al. 2023

PeerJ

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show abstract

“…Similar activation times in different cardiac chambers suggest that the source of arrhythmia is likely in between these chambers 17 …”

Section: How To Perform Bipolar Ablationmentioning

confidence: 96%

“…">Suboptimal pace mapping from accessible endocardial or epicardial sites also indicates a possible intramural origin. Similar activation times in different cardiac chambers suggest that the source of arrhythmia is likely in between these chambers 17 …”

Section: How To Perform Bipolar Ablationmentioning

confidence: 98%

Bipolar ablation of ventricular arrhythmias: Step‐by‐step

Futyma,

Chen,

Enriquez

et al. 2023

Cardiovasc electrophysiol

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Radiofrequency (RF) ablation of intramural ventricular arrhythmias (VAs) may require advanced ablation techniques to achieve effective energy transfer to the targeted tissue. As an alternative to standard RF ablation, catheter ablation can also be conducted in bipolar configuration when two ablation catheters participate in the RF circuit. This strategy has proved to result in deeper lesion formation and may be effective for eliminating arrhythmias that have been refractory to standard ablation. In this article, we provide a step‐by‐step guide on when and how to perform bipolar ablation of VAs.

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Outflow tract PVC mapping: understand the “uni”…believe the “bi”

Pothineni

2022

J Interv Card Electrophysiol

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Intracardiac electrogram characteristics of intramural outflow tract ventricular arrhythmias

Cited by 3 publications

References 20 publications

Effect of the index of cardiac electrophysiological balance on major adverse cardiovascular events in patients with diabetes complicated with coronary heart disease

Effect of the index of cardiac electrophysiological balance on major adverse cardiovascular events in patients with diabetes complicated with coronary heart disease

Bipolar ablation of ventricular arrhythmias: Step‐by‐step

Outflow tract PVC mapping: understand the “uni”…believe the “bi”

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