Publications by authors named "Potter T"

Atrial fibrillation (AF) remains the most common cardiac arrhythmia worldwide and is associated with significant morbidity and mortality. The European Society of Cardiology (ESC)/European Association for Cardio-Thoracic Surgery (EACTS) have recently released the 2024 guidelines for the management of AF. This review highlights 10 novel aspects of the ESC/EACTS 2024 Guidelines.

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In the last three decades, ablation of atrial fibrillation (AF) has become an evidence-based safe and efficacious treatment for managing the most common cardiac arrhythmia. In 2007, the first joint expert consensus document was issued, guiding healthcare professionals involved in catheter or surgical AF ablation. Mounting research evidence and technological advances have resulted in a rapidly changing landscape in the field of catheter and surgical AF ablation, thus stressing the need for regularly updated versions of this partnership which were issued in 2012 and 2017.

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  • Many patients with atrial fibrillation (AF) are not receiving or are stopping oral anticoagulation therapy, despite its importance for stroke prevention.
  • While direct oral anticoagulants (DOACs) are available, issues like bleeding risks, poor compliance, and aversion to treatment contribute to this problem.
  • A recent expert consensus guide highlights left atrial appendage closure (LAAC) as a safe alternative for stroke prevention in patients who cannot use long-term anticoagulation, detailing the devices, implantation technique, and follow-up requirements for non-implanting physicians.
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Background: Clinical experience during trans-patch ventricular ablations shows difficult lesion formation when using standard RF ablation technology. The aim of this exploratory study is to test if ultralow temperature cryoblation (ULTC) technology could be suitable for trans-patch ventricular ablations.

Materials And Methods: Ex vivo ablations were performed on 16 porcine tenderloin specimens of 5 × 7 × 3 cm, eight with and eight without pericardial patch (Supple Peri-Guard Repair Patch, Baxter, USA).

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  • The study focuses on the effectiveness of adjuvant radiation therapy, specifically intensity-modulated radiation therapy (IMRT) and stereotactic radiosurgery (SRS), after subtotal resection of WHO grade II meningiomas due to the limited existing research.
  • A retrospective analysis of 39 patients revealed 3-, 5-, and 10-year progression-free survival rates of 81.1%, 61.2%, and 44.6%, respectively, demonstrating overall acceptable control rates.
  • No significant differences were found in progression-free survival or radiation necrosis occurrences between the IMRT and SRS groups, suggesting both treatments are similarly effective for managing residual tumors.
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Background: Representing half of the global health workforce, nurses are critical to health promotion, disease prevention, and the economic and social needs of populations. However, nursing expertise is underutilized in the UN System, and nurses are underprepared for roles in policy to influence global health and sustainable development. Innovative education strategies are necessary to address the sidelining of nursing expertise in these spaces and build nursing literacy in shaping global policy.

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  • Despite national efforts to highlight the importance of capnography for confirming tracheal intubation, deaths from unrecognized esophageal intubation persist, prompting the adoption of a two-person verbal check during the intubation process.
  • In a study across two hospitals, one implemented a one-step check and the other a two-step check, collecting feedback from anaesthetists and assistants via anonymous questionnaires throughout the process.
  • The majority of participants felt that the two-person checks enhanced communication and teamwork, with high support for continued use; 82% of intubators and 94% of assistants intended to use this method for future intubations.
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Shiga-toxin producing (STEC) O157 is a food-borne pathogen which causes gastrointestinal illness in humans. Ruminants are considered the main reservoir of infection, and STEC exceedance has been associated with heavy rainfall. In September 2022, a large outbreak of STEC O157:H7 was identified in the United Kingdom (UK).

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Guidelines recommend intravenous loop diuretics as first-line therapy for patients hospitalized with acute heart failure (AHF) and volume overload. Additional agents can be used for augmentation, but there is limited guidance on agent selection. The study objective was to determine if chlorothiazide or metolazone is associated with differences in diuretic efficacy or safety in loop diuretic-resistant patients with AHF and renal dysfunction (eGFR <45 mL/min/1.

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  • - Study aimed to determine factors influencing early mortality after left atrial appendage occlusion (LAAO) to improve patient selection and cost-effectiveness for stroke prevention.
  • - Analyzed data from 1,020 patients, finding a 2-year mortality rate of 16.4%, with 50% of deaths attributed to non-cardiovascular causes, and identified six key predictors of mortality including age and heart failure.
  • - Concluded that as the number of risk factors in patients increased, the mortality rate rose significantly, underscoring the need for careful patient selection for LAAO procedures.
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Introduction: The VARIPULSE™ variable-loop circular catheter (VLCC) is a bidirectional, multielectrode catheter that can perform electrophysiological mapping and deliver pulsed field energy through the TRUPULSE™ Generator for the treatment of atrial fibrillation. This ablation system, including the CARTO 3™ three-dimensional electroanatomical mapping system, represents a fully integrated system.

Methods: Pulsed field ablation (PFA) is a novel, primarily cardiac tissue-selective ablation technology with a minimal thermal effect, potentially eliminating the collateral tissue damage associated with radiofrequency ablation or cryoablation.

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  • A study was conducted to evaluate the success and outcomes of electroanatomical-guided cardioneuroablation (EACNA) in treating patients with vagally induced atrioventricular blocks (VAVBs).
  • The results showed a high acute procedural success rate of 96.2%, but 14% of patients experienced recurrence of AVB or new syncopal episodes during a follow-up period of approximately 300 days.
  • The findings suggest that EACNA is a promising option for patients with VAVB, but further research is needed to explore its effects on daytime symptom burden.
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Background: Neuroimaging is the gold-standard diagnostic modality for all patients suspected of stroke. However, the unstructured nature of imaging reports remains a major challenge to extracting useful information from electronic health records systems. Despite the increasing adoption of natural language processing (NLP) for radiology reports, information extraction for many stroke imaging features has not been systematically evaluated.

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Purpose: To examine the performance of self-reported visual difficulty (VD) in predicting objective visual impairment (VI) in older adults and explore factors that influence discordance.

Design: Cross-sectional analysis of the National Health and Aging Trends Study (2022).

Methods: Participants reporting blindness or difficulties with distance or near vision were characterized as having VD.

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The agricultural fungicide cymoxanil (CMX) is commonly used in the treatment of plant pathogens, such as Phytophthora infestans. Although the use of CMX is widespread throughout the agricultural industry and internationally, the exact mechanism of action behind this fungicide remains unclear. Therefore, we sought to elucidate the biocidal mechanism underlying CMX.

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  • Study investigated how well the pullback pressure gradient (PPG) can predict successful outcomes in percutaneous coronary intervention (PCI) for patients with diffuse coronary artery disease.
  • PPG was found to have a strong correlation with changes in fractional flow reserve (FFR) post-PCI, significantly better than using FFR alone for predicting optimal revascularization.
  • The research highlights that PPG can influence treatment decisions and improve safety during PCI procedures, particularly for patients at risk of complications.
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Aims: Contact force (CF)-sensing radiofrequency (RF) catheters with an ablation index have shown reproducible outcomes for the treatment of atrial fibrillation (AF) in large multicentre studies. A dual-energy (DE) focal CF catheter to deliver RF and unipolar/biphasic pulsed field ablation (PFA), integrated with a three-dimensional (3D) mapping system, can provide operators with additional flexibility. The SmartfIRE study assessed the safety and efficacy of this novel technology for the treatment of drug-refractory, symptomatic paroxysmal AF.

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Background: We previously presented the safety and early efficacy of the inspIRE study (Study for Treatment of Paroxysmal Atrial Fibrillation [PAF] by Pulsed-field Ablation [PFA] System With Irreversible Electroporation [IRE]). With the study's conclusion, we report the outcomes of the full pivotal study cohort, with an additional analysis of predictors of success.

Methods: InspIRE was a prospective, multicenter, single-arm clinical trial of drug-refractory paroxysmal atrial fibrillation.

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Following an outbreak of in Wales in July 2021 associated with sheep meat and offal, further genetically related cases were detected across the UK. Cases were UK residents with laboratory-confirmed in the same 5-single-nucleotide polymorphism (SNP) single-linkage cluster with specimen date between 01/08/2021-2031/12/2022. We described cases using routine (UK) and enhanced (Wales only) surveillance data.

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