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Catheter Ablation - Crossref

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Last Updated: 10 September 2022

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Safety and efficacy of zero-fluoroscopy catheter ablation for paroxysmal supraventricular tachycardia in Chinese children

Objects Comparison of Objectives Objectives: To compare the performance and effectiveness of complete zero-fluoroscopy radiofrequency ablation in Chinese children with paroxysmal supraventricular tachycardia, and conventional RFA guided by three-dimensional mapping. Methods of Investigation The study was based on a single-center observational design, and it included 46 children aged 6–2013-14 years who underwent RFA for PSVT at Hebei Medical University between March 2019 and September 2021. In the zero-fluoroscopy group, the target mapping time was significantly longer than in the conventional group than in the conventional group; however, there was no significant difference between the two groups in the immediate success rate, success rate 6 months afteroperatively, recurrence rate, RFA time, or total procedure time — which was no significant between-group difference. Conclusion Without affecting RFA's safety and effectiveness, zero-fluoroscopy catheter ablation in children can completely prevent fluoroscopy exposure in children.

Source link: https://doi.org/10.3389/fcvm.2022.979577


A Practical Method for Ablation Catheter Reintroduction into the Left Atrium via Prior Transseptal Puncture, without Radiation

Background: Under guidance of the show-catheter image-track function of the CARTO 3 3-dimensional electroanatomic mapping device, we investigated the possibility and safety of reintroducing an ablation catheter into the left atrium. Methods: One hundred consecutive paroxysmal or persistent atrial fibrillation patients who had undergone 2 fluoroscopy-guided punctures and anatomical LA reconstruction under CARTO 3-guidance, were eligible for ABL reinsertion into the LA during mapping or ablation.

Source link: https://doi.org/10.1532/hsf.2621


The Efficacy and Safety of Radiofrequency Catheter Ablation for Cardiac Arrhythmias in Pediatric Patients

Background: We wanted to determine the acute and long-term effectiveness and safety of radiofrequency catheter ablation in Chinese pediatric patients with arrhythmias. Methods: We gathered clinical evidence from pediatric patients who underwent RFCA in several large medical centers in China between 2000 and 2019. parachycardia and atrioventricular nodal reentry tachycardia account for the bulk of supraventricular tachycardia. 93. 4%/92. 2%, AVRT 99. 8%/92. 2%, PVC 92. 2%, and VT 83. 2 percent/77. 22% The overall success rate of RFCA was 96%/92. 2%, 96. 4%/92. 2%, 96. 2%/92. 2%, 98. 4%/92. 2%, 72. 3 percent/92. 2%, 97. 2%/92. 2%, with a 97. 2%/92. Conclusions: This present study reveals that RFCA is highly effective and safe in the treatment of arrhythmias in Chinese pediatric patients, with a 90 percent success rate over 90%, low recurrence rate, and significantly reduced the risk of complications. The success of left-sided pathway ablation is marginally higher than that of the right-sided pathway. Those of children of different ages do not differ in the success rate of RFCA.

Source link: https://doi.org/10.1532/hsf.2837


Catheter Ablation for Atrial Fibrillation in Adult Congenital Heart Disease: An International Multicenter Registry Study

Background: In patients with congenital heart disease, data on atrial fibrillation ablation and outcomes is limited. We wanted to investigate the characteristics of patients with CHD presenting for AF ablation and their outcomes. Methods: Patients with CHD undergoing AF ablation at 13 participating centers between 2004 and 2020 undergone a multicenter, retrospective review was carried out. Freedom from atrial tachycardia or AF in the absence of antiarrhythmic drugs or including previously failed antiarrhythmic drugs was defined as one-year complete procedural success. The mean left atrial diameter was 44. 1 mm, and four-six patients had a reduced systemic ventricular ejection fraction of 5 percent, and a reduced systemic ventricular ejection fraction of 50%. The success rates of complete and partial success among complexity groups was 45. 0% and 20. 55 percent, respectively, with no significant difference between the two groups' rates of complete satisfaction. AF ablation in CHD was safe and resulted in AF control in a vast number of patients, regardless of complexity.

Source link: https://doi.org/10.1161/circep.122.010954


A prediction model of atrial fibrillation recurrence after first catheter ablation by a nomogram: HASBLP score

Background Overview Background catheter ablation in patients with atrial fibrillation is an effective method for rhythm regulation. Methods and techniques An examination of a two-year follow-up showed that a total of 1,065 patients who underwent AF catheter ablation between January 2015 and December 2018 were consecutively included in this study, which examines the findings of a 2-year follow-up. Patients with AF were divided into the development cohort and validation cohorts. We also plotted the decision analysis curve, comparing our model's results to CHADS2 and CHA 2 DS 2. After the first catheter ablation at a 2-year follow-up, we developed a nomogram for predicting AF recurrence, which can be used as a metric to help with future patient follow-up.

Source link: https://doi.org/10.3389/fcvm.2022.934664


Pulsed Field Ablation of the Porcine Ventricle Using a Focal Lattice-Tip Catheter

PFA in swine ventricles was determined by a research team. Methods: A focal lattice-tip catheter was used to introduce novel biphasic PFA applications to swine ventricles under general anesthesia, with electroanatomical mapping, fluoroscopy, and intracardiac echocardiography. The effectiveness of repeating delivery at each location, epicardial PFA delivery, and confluent areas of shallow healed endocardial scar created by prior PFA on subsequent endocardial PFA were tested by experimentation. 4. 6 mm vs. 3. 2 mm versus 12. 7 mm versus 4. 1 mm versus 1. 03 mm vs. 14. 6 mm, width 13. 4 or 13. 8 mm versus 12. 5 mm versus 14. 1 mm versus 12. 7 mm versus 20. 0 mm, and depth 6. 6 versus 4. 2 mm versus 4. 2 mm versus 4. 2 mm versus 4. 2 mm versus 14. 1 mm versus vinci compared to versus 14. 1 versus 10. 6 u00b11. 0 u00b11. 6 u00b11. 3 u00b11. 6 versus 16. 5 versus 112. 6 u00b11. 4 u00b11. 3 versus 15. 6 versus 128. PFA was able to penetrate to a depth of 4. 8 mm in healthy myocardium versus 5. 6 mm in a distant healed endocardial scar, indicating that superficial scar does not significantly damage PFA.

Source link: https://doi.org/10.1161/circep.122.011120


Substrate Characterization and Outcomes of Catheter Ablation of Ventricular Arrhythmias in Patients With Mitral Annular Disjunction

There are no studies on the electrophysiological substrate or the results of catheter ablation of ventricular arrhythmias in patients with MAD. Methods: Forty patients with MAD underwent catheter ablation for ventricular arrhythmias. Patients who underwent subcutaneous dermatogenesis in the MAD region were compared to those who did not. Treatments: Twenty-three patients died after premature ventricular contractions, ten patients for prolonged ventricular tachycardia, and seven patients for premature ventricular contraction-triggered fibrillation ablation. In the anterolateral annulus or MAD area, 10 patients had abnormal electrograms during electroanatomical mapping, among the 18 patients with abnormal local electrograms. Patients with MAD have a complicated arrhythmogenic substrate, and catheter ablation is highly effective in reducing ventricular arrhythmia recurrence.

Source link: https://doi.org/10.1161/circep.122.011088


Racial Disparity in Referral for Catheter Ablation for Atrial Fibrillation at a Single Integrated Health System

According to studies, Black patients are less likely to experience AFCA than White patients. Patients with atrial fibrillation in internal medicine and primary care had a significant risk of referral to EP among NHB and NHW patients; in adjusted models, there were no significant differences in the odds of completing a visit in general cardiology or EP; among all patients in the study, there was no significant difference in the odds of completing a visit in general cardiology or EP. Among patients undergoing an EP visit, NHB patients were less likely to experience AFCA. Conclusions Between NHB and NHW patients, similar referral rates to general cardiology and EP were found. Despite this, NHB patients were less likely to experience AFCA.

Source link: https://doi.org/10.1161/jaha.122.025831


Catheter ablation and cognitive function in atrial fibrillation: A systematic review and meta-analysis

Background The fibrillation of acute fibrillation is a risk factor for cognitive impairment. Although catheter ablation is one of the most common AF treatments, it's unclear if it would improve cognitive function in patients with AF. The result Thirteen studies including 40,868 patients were included, of which 12,086 patients received AF ablation. Patients with AF ablation had a reduced risk of dementia risk in comparison to patients without AF [hazard ratio : 0. 60, 95% CI: 0. 43 to 0. 84, p = 0. 003 I 2 = 40%]. [Average : 0. 46 to 1. 65], p. 0. 001 I 2 = 0%] and Mini-Mental State Examination score WMD: 0. 68, 95% CI: 0. 36 to 1. 66] explains the decline in the incidence of new-onset dementia [risk ratio : 0. 43, 95% CI: 0. 36 to 1. 46]; Modification of Mini-Mental State Examination score [i. d. : 0. 48 to 1. 0]; We did not find significant changes in MoCA scores or changes in cognitive function scores between the radiofrequency group and cryoballoon group [standard mean difference : 0. 39, 95% CI: 0. 39, 86 percent]. At > 3 months post-procedure, AF ablation showed a promising trend for improving cognitive function in the general population. However, AF ablation may not be correlated to cognitive health improvement at 3 months.

Source link: https://doi.org/10.3389/fneur.2022.934512


Catheter Ablation for Atrial Fibrillation in Systolic Heart Failure Patients: Stone by Stone, a CASTLE

Heart disease and AF commonly coexist and are embedded in a vicious cycle of adverse pathophysiologic ties. Patients with AF and HF may be vulnerable to therapy protocols that have been tested in the general AF population and may be fraught with risks and lack of effectiveness. Although company guidelines on using catheter ablation for AF do exist, a subset of patients with HF needs to be investigated more closely. According to observational results, a significant number of ablation procedures are performed in patients with coexistent HF.

Source link: https://doi.org/10.15420/aer.2018.41.2

* 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