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Background And Aims: Symptom control for atrial fibrillation can be achieved by catheter ablation or drug therapy. We assessed the cost effectiveness of a novel streamlined atrial fibrillation cryoballoon ablation protocol (AVATAR) compared with optimised antiarrhythmic drug (AAD) therapy and a conventional catheter ablation protocol, from a UK National Health Service (NHS) perspective.
Methods: Data from the AVATAR study were assessed to determine the cost effectiveness of the three protocols in a two-step process. In the first stage, statistical analysis of clinical efficacy outcomes was conducted considering either a three-way comparison (AVATAR vs. conventional ablation vs. optimised AAD therapies) or a two-way comparison (pooled ablation protocol data vs. optimised AAD therapies). In the second stage, models assessed the cost effectiveness of the protocols. Costs and some of the clinical inputs in the models were derived from within-trial cost analysis and published literature. The remaining inputs were derived from clinical experts.
Results: No significant differences between the ablation protocols were found for any of the clinical outcomes used in the model. Results of a within-trial cost analysis show that AVATAR is cost-saving (£1279 per patient) compared with the conventional ablation protocol. When compared with optimised AAD therapies, AVATAR (pooled conventional and AVATAR ablation protocols efficacy) was found to be more costly while offering improved clinical benefits. Over a lifetime time horizon, the incremental cost-effectiveness ratio of AVATAR was estimated as £21,046 per quality-adjusted life-year gained (95% credible interval £7086-£71,718).
Conclusions: The AVATAR streamlined protocol is likely to be a cost-effective option versus both conventional ablation and optimised AAD therapy in the UK NHS healthcare setting.
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http://dx.doi.org/10.1007/s41669-023-00471-6 | DOI Listing |
JMIR Form Res
September 2025
Department of Critical Care Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangdong Provincial Geriatrics Institute, No. 106, Zhongshaner Rd, Guangzhou, 510080, China, 86 15920151904.
Background: Point-of-care ultrasonography has become a valuable tool for assessing diaphragmatic function in critically ill patients receiving invasive mechanical ventilation. However, conventional diaphragm ultrasound assessment remains highly operator-dependent and subjective. Previous research introduced automatic measurement of diaphragmatic excursion and velocity using 2D speckle-tracking technology.
View Article and Find Full Text PDFElectroporation is a promising technology utilizing electrical pulses for macromolecule delivery and soft-tissue ablation, with applications that include next-generation prophylactics and the treatment of genetic diseases such as cancer. This study demonstrates a high-throughput capable 3D tissue culture model for quantification of the reversible and irreversible electroporation thresholds for a given electroporation protocol. By using a non-uniform electric field and analyzing the spatial distribution of transfected cells, both reversible and irreversible thresholds can be identified within a single sample, increasing the efficiency at which electroporation protocols can be characterized, especially for in vivo translation.
View Article and Find Full Text PDFJ Cardiovasc Electrophysiol
September 2025
Department of Cardiology, Second Affiliated Hospital of Third Military Medical University (Army Medical University), Chongqing, China.
Background And Aims: Ablation for premature ventricular complexes (PVCs) originating from the right ventricular inflow tract (RVIT) is challenging. Few studies have identified the correlation between right ventricular false tendons (RVFTs) and RVIT PVCs. This study aimed to verify RVFTs as arrhythmogenic and electro-anatomical substrates for PVCs, and propose an enlightening mapping and ablation protocol to improve operative efficacy.
View Article and Find Full Text PDFClin J Gastroenterol
September 2025
Department of Hepatobiliary and Pancreatic Oncology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka, 541-8567, Japan.
Hepatic reactive lymphoid hyperplasia (RLH), also known as hepatic pseudolymphoma, is a rare benign condition that predominantly affects middle-aged-to-elderly women and is often associated with autoimmune disorders. The imaging features of hepatic RLH frequently mimic those of malignant hepatic tumors, such as hepatocellular carcinoma (HCC), cholangiocarcinoma, or metastatic liver tumors, making its diagnosis based solely on imaging modalities challenging, often leading to unnecessary surgical resection. However, the optimal diagnostic strategy for hepatic RLH remains controversial.
View Article and Find Full Text PDFSurg Oncol
September 2025
Department of Breast Surgery at Northwestern Medical Group, USA.
Importance: Breast-conserving therapy (BCT) results in reoperation in ∼20 % of cases due to positive margins, and a 7-13 % recurrence risk at 5 years persists despite negative margins and radiation. Enhancing margin treatment is critical to reducing local recurrence and improving survival.
Objective: To optimize and evaluate the performance of a Saline-coupled Intraoperative Radiofrequency Ablation (SIRA) device in producing uniform 1 cm ablations in lumpectomy cavities and compare it to prior-generation RFA technology in previous clinical studies.