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Ablation Heart - Europe PMC

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Last Updated: 10 December 2022

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Radiofrequency catheter ablation of ventricular tachycardia using combined endocardial techniques in patients with structural heart disease improves procedural effectiveness and reduces arrhythmia episodes.

Evidence-based, safe and effective, ventricular tachycardia in patients with structural heart disease is a result of radiofrequency catheter ablation. The aim of this research was to investigate and provide evidence of the effectiveness and safety of a systematized combination of VT ablation strategies in patients with SHD. SHD patients with SHD who underwent RFCA of VT were retrospectively evaluated from a group of 58 consecutive patients from 2016 to 2019. The number of induced VT morphologies, the manufacture of non-clinical or unsustained VT after ablation, and less VT mapping techniques used during surgery were all related to decrease VT free-survival.

Source link: https://europepmc.org/article/MED/36475512


Effect of Catheter Ablation for Atrial Fibrillation in Heart Failure With Mid-Range or Preserved Ejection Fraction - Pooled Analysis of the AF Frontier Ablation Registry and Hokuriku-Plus AF Registry.

Background The current randomized trial found that catheter ablation in patients with heart failure with reduced ejection fraction is associated with a reduced risk of death or heart failure in patients with heart failure.

Source link: https://europepmc.org/article/MED/36464278


Atrioventricular Node Ablation Combined with Permanent His-Purkinje Conduction System Pacing in Patients with Atrial Fibrillation with Heart Failure: A Systematic Review and Meta-analysis

Introduction: We did a meta-analysis to determine HPCSP's effectiveness in patients with atrial fibrillation with heart failure who have undergone atrioventricular node ablation in such circumstances as there are no relevant systematic studies to assess His-Purkinje conduction device pacing in patients with atrial fibrillation with heart failure who have undergone atrioventricular node ablation. Methods used for the meta-analysis were used by Review Manager 5. 3. We searched the PubMed, Cochrane Library, and Embase databases for reports on the effects of AVNA combined with HPCSP on patients with heart failure who had published between 2000 and 2021. Regarding QRS duration, there was no significant difference between AVNA and HPCSP after implementation; however, an increasing trend was observed in the pacing threshold at follow-up, relative to baseline. Patients with heart disease can be accompanied by AVNA's heart failure, u03b2-blockers, and digoxin for patients with heart disease.

Source link: https://europepmc.org/article/PPR/PPR577916


Effects of different ablation settings on lesion dimensions in an ex vivo swine heart model: Baseline impedance, irrigant, and electrode configuration.

Methods In 12 ex vivo swine hearts, an irrigant of normal saline; a bipolar configuration with an irrigant of NS; and a multistep impedance load in four settings; and a discrete unipolar configuration with an irrigant of NS. Baseline impedance had a strong negative linear correlation with lesion dimensions at a given AI. Bipolar ablation resulted in substantially more lesion than other electrode arrangements, resulting in more lesion than other electrode configurations. At a certain AI level, there is a strong negative linear correlation between baseline impedance and lesion dimensions. In irrigated fluid and ablation designs, baseline impedance has a bearing on the overall lesion dimensions. The predictive accuracy of AI can be deceived if the impedance of 150 u03a9 is exceeded.

Source link: https://europepmc.org/article/MED/36403284


The long-term outcomes of catheter ablation for atrial fibrillation in heart failure with preserved ejection fraction

Background: We wanted to compare the long-term results of catheter ablation and medical therapy in patients with atrial fibrillation and heart failure with preserved ejection fractions. Methods: We retrospectively evaluated consecutive patients with AF and HFpEF who underwent catheter ablation or medical care from December 2017 to June 2021 in our facility. The prevalence of the primary endpoint was significantly lower in catheter ablation group compared to the medical treatment group during a median follow-up of 31. 8 months. Both in PSM and IPTW cohorts, catheter ablation was independently associated with a reduced risk of the primary endpoint in the multivariate model. Conclusion: In AF and concomitant HFpEF, catheter ablation was highly associated with a lower risk of the composite endpoint, increased HF symptoms, and reverse atrial remodeling.

Source link: https://europepmc.org/article/PPR/PPR572313


An aggressive solution for patients with heart failure and atrial fibrillation: nodal ablation and cardiac resynchronization therapy.

Heart failure and atrial fibrillation are two disorders that often coexist and contribute to patient's prognosis and quality of life. The resynchronization therapy of cardiac resynchronization therapy does not fit into this context as a definitive but effective treatment.

Source link: https://europepmc.org/article/MED/36380801


Prevalence and risk factors of cardiac thrombus prior to ventricular tachycardia catheter ablation in structural heart disease.

Aims tachycardia ablation syndrome caused by scar-related ventricular tachycardia ablation. Patients with de novo, scar-related VT ablation who did not underwent pre-procedure cardiac computed tomography were included in the study. At 49 sites [29 LV]; eight left atrial appendage; four right ventricle; four right atrial appendage] We included 401 patients [61-b1 364 male]; left ventricular ejection fraction 40 percent; left ventricular ejection fraction 40 percent; left ventricular ejection fraction 43 percent]; 45 patients had cardiac thrombi on cCT at 49 sites [29 LV; four right ventricle; four right atrial appenda; four patients] Nine patients had pulmonary emboli. Based on a Thrombus location-specific review, LV aneurysm and LVEF 40% as predictors of LV thrombus and arrhythmogenic right ventricular cardiomyopathy as a predictor of RV thrombus. The left atrial appendage thrombi was restricted to patients with atrial fibrillation. In 363 patients with thrombus but not a reactive electrical storm, three patients with thrombus was finally successful. In 11% of patients referred for scar-related VT ablation, one-quarter of patients can be identified.

Source link: https://europepmc.org/article/MED/36355748

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions