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Ablation - Crossref

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Last Updated: 10 November 2022

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Inflammatory Response after Different Ablation Strategies for Paroxysmal Atrial Fibrillation

Background: Catheter ablation for atrial fibrillation has gained a following, but the trend of inflammatory response markers in patients treated with varying catheter ablation methods over time and their predictability of AF recurrence remains unclear. Following surgery, an increase in the number of white blood cells and neutrophils was positively linked to the rise in the number of paroxysmal fibrillation indices. After various catheter ablation techniques, the postoperative inflammation indices peaked and dropped at different time points. In addition, the recurrence rate of AF in patients treated with freeze3D is lower.

Source link: https://doi.org/10.1532/hsf.3149


Assessment of Bipolar Radiofrequency Ablation Combined with Coronary Artery Bypass Surgery for Management of Atrial Fibrillation in Cardiac Patients

For AF ablation, bipolar radiofrequency ablation establishes complete transmural ablation lines and minimizes the chance of treatment failure. We investigated the safety of BRA for sinus rhythm recovery in patients with AF undergoing CABG. This prospective review included patients with permanent or paroxysmal AF who were scheduled to have BRA in our institution from May 2014 to June 2020. Patients with group II disease had higher sinus rhythm restoration rates after BRA with CABG than group I patients, according to our analysis. Overall mortality in group II patients was significantly lower than in those in group I. The Cox hazards survival ratio was significantly different between groups compared to the 95% confidence interval. AF before BRA, with CABG and permanent AF were identified as predictors of post-brace recurrent AF.

Source link: https://doi.org/10.1532/hsf.3283


Left Atrial Appendage Circular RNAs Are New Predictors of Atrial Fibrillation Recurrence After Surgical Ablation in Valvular Atrial Fibrillation Patients

Background: During a follow-up, atrial fibrillation recurrence after ablation can raise mortality and morbidity. To develop a predictive model for early intervention, we tried to investigate the relationship between circular RNAs and AF recurrence. Patients who underwent surgical ablation retrospectively were analyzed. Methods: Patients with surgical ablation were retrospectively assessed. Multivariate analysis revealed the independent risk factors of late recurrence. The Kaplan-Meier plot was used to compare the rate of freedom from AF recurrence after surgery. Study: 136 patients were enrolled from September 2018 to June 2019, five patients experienced late recurrence during a one-year follow-up. In recent patients, the circ 81906-RYR2, circ 418-LAMA2, circ 4782-ANO5 and circ 35880-ANO5 were found with an increased age, longer AF duration, and increased circ 81906-RYR2, circ 4782-LAMA2, circ 418-LAMA2, circ 44782-ANO5 were discovered. Patients over 70 points tended to experience AF recurrence, according to Kaplan-Meier's plots. Conclusion: Circ 81906-RYR2 may be a new predictor of late recurrence following surgical ablation.

Source link: https://doi.org/10.1532/hsf.4125


Efficacy and Safety Results of Different Ablation Technologies for Persistent Atrial Fibrillation Treatment

Introduction: Pulmonary vein isolation is the primary goal in treating patients with paroxysmal atrial fibrillation treated by catheter ablation. Patients and methods: The study included 127 patients with persistent atrial fibrillation in the last six months and was not included in the study. Conclusions: The therapy of patients with persistent atria fibrillation, utilizing catheter ablation with contact force control catheter therapy with the pulmonary vein isolation was more effective.

Source link: https://doi.org/10.1532/hsf.4853


Ablation of Lsd1 induces viral mimicry in thymocytes and promotes the development of innate-memory T cells

At the double-negative stage, we discovered that specific deletion of Lsd1 in thymocytes leads to significant thymic atrophy and reduces peripheral T cells with reduced proliferation capacity. In addition, deletion of Lsd1 prevented the program's sequential down-regulation of CD8 expression at the DP(u2192CD4 + CD8 lo stage and induced an innate-memory phenotype in both thymic and peripheral T cells. Overall, our report gives new insight into Lsd1's role as an important promoter of early T cell differentiation.

Source link: https://doi.org/10.21203/rs.3.rs-1961347/v1


Spark Ablation for the Fabrication of PEM Water Electrolysis Catalyst-Coated Membranes

Proton-exchange-membrane electrolyzers, which exhibit a promising method for sustainable hydrogen production due to their effectiveness and load flexibility. Since low-cost Ir replacements are not available at this time, there is urgent need to engineer catalyst-coated membranes with homogeneous catalyst layers at low Ir loadings. Without a compromise in operation, our findings show that spark-ablation CCMs can reduce the Ir demand by up to five times compared to commercial CCMs. For those cases without major hurdles, the durability of spark-ablation CCMs has been tested by using consistent and variable load profiles for 150 h, revealing different degradation mechanisms for each case. The present findings, as well as manufacturing aspects related to simplicity, cost, and environmental footprint of a CCM manufacturing plant, show that spark ablation has a high likelihood of being used in CCM manufacturing.

Source link: https://doi.org/10.3390/catal12111343


Meta-Analysis of Repeat Hepatectomy versus Radiofrequency Ablation for Recurrence of Hepatocellular Carcinoma

In the absence of a standardized treatment scheme, a variety of treatment options, including repeat hepatectomy and radiofrequency ablation, have been used in select patients with rHCC. RHCC's primary goal was to compare short- and long-term results of patients undergoing RHR versus RFA for rHCC. Patients with RH were less likely to experience a second recurrence. Overall and major morbidity in the RH group were significantly higher in the RH cohort, while RFA and RH were similar, with mortality being similar between RFA and RH. RFA is a safe and effective alternative to RH for selected patients with rHCC, according to the data.

Source link: https://doi.org/10.3390/cancers14215398


Stent-based electrode for radiofrequency ablation in the rat esophagus: a preliminary study

Abstract Endoluminal radiofrequency ablation has been widely used as a safe and effective treatment for Barrett's esophagus. A stent-based monopolar RF electrode was designed to evenly distribute RF energy to the rat esophagus's inner wall. 89 W, 59 s at 40 W, and 34 s at 50 W. The temperature of RF ablation using SE was 70 °, 41 W, and 34 s at 50 W, compared to just, 1 and 2 weeks after the procedure.

Source link: https://doi.org/10.1038/s41598-022-23472-7


Protocol for the ORION trial (RadiO fRequency ablatION for haemorrhoids): a randomised controlled trial

A recent review by the National Institute for Health and Clinical Excellence found that more study, in the form of randomised controlled trials, should be carried out before further investment is made by national health services before further investment is made. We need to determine whether RFA is at least as effective in terms of recurrence as existing surgical procedures, but better in terms of pain for patients with symptomatic grade II and III haemorrhoids. Methods The RadiO fRequency ablation for haemorrhoids will be a pragmatic multicentre patient/assessor-blind parallel group-controlled trial with economic analysis. Participants with grade II or III haemorrhoids will be recruited in 16 National Health Service hospitals and randomly assigned to either RFA or surgeon's choice of surgery. Conclusions: The findings will inform future research in RFA regarding future investment in RFA and provide evidence for national health services on future investments in RFA.

Source link: https://doi.org/10.1007/s10151-022-02724-8

* 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