Superior Vena Cava Isolation With Cryoballoon in AF Ablation: Randomized CAVAC AF Trial.

Background: Superior vena cava (SVC) has been considered a specific trigger in atrial fibrillation development.

Methods: We investigated the efficacy and safety of combining cryoballoon pulmonary vein isolation (PVI) with SVC ablation compared with PVI alone in 100 patients with paroxysmal or non-long-standing persistent atrial fibrillation. Patients were randomly assigned to either the PVI+SVC ablation group or the PVI-only group.

Feasibility and safety of left bundle branch area pacing in cardiac amyloidosis. A single center experience.

Background: Conventional right ventricle (RV) pacemaker stimulation has been associated with worse clinical outcomes in patients with cardiac amyloidosis (CA). Left bundle branch area pacing (LABPP) has been suggested as a promising alternative. We sought to assess the safety, feasibility, and outcomes of LABPP in patients with CA.

Experience and insights from a prolonged electrocardiographic monitorization with a wearable system after an embolic stroke of unknown source.

Background: Embolic cerebrovascular events that remain of unknown etiology after a thorough diagnostic evaluation, are known as Embolic Strokes of Undetermined Source (ESUS). Subclinical atrial fibrillation (AF) represents a significant underlying cause of ESUS. Our aims were to examine the overall diagnostic yield of a prolonged cardiac monitoring wearable system (PCMw) after an ESUS to detect AF and factors associated with it, including the time frame from the ESUS event to PCMw initiation.

Efficacy and safety of Proglide use and early discharge after atrial fibrillation ablation compared to standard approach. PROFA trial.

Background And Objectives: The common practice after atrial fibrillation ablation is to admit patients for an overnight stay. The aim of this study was to compare a strategy of vascular suture mediated closure system utilization and early discharge (strategy A) compared to traditional closure and overnight hospitalization (strategy B) regarding feasibility, safety, quality of life and health care cost effectiveness.

Methods And Results: Hundred patients were randomized to compare both strategies.

: a new recombinant begomovirus found in non-cultivated plants and L.

Background: Begomoviruses are circular single-stranded DNA plant viruses that cause economic losses worldwide. Weeds have been pointed out as reservoirs for many begomoviruses species, especially from members of the and genera. These weeds have the ability to host multiple begomoviruses species simultaneously, which can lead to the emergence of new viral species that can spread to commercial crops.

Estimation of the QTc interval in the presence of right bundle branch block: A comparative study using validated formulae for left bundle branch block.

Background: Adequate measurement of the QT interval is of clinical importance in order to identify patients at higher risk for ventricular arrhythmias. Previous studies have described different methods to estimate baseline QT in patients with left bundle branch block (LBBB). However, the evidence regarding the assessment of the QT in patients with right bundle branch block (RBBB) is scarce.

Usefulness of natriuresis to predict in-hospital diuretic resistance.

Background: Urinary sodium excretion predicts long-term adverse events after discharge in patients with acute heart failure (AHF). The role of natriuresis as an early marker of poor diuretic response during an AHF episode has been scarcely investigated. We sought to evaluate whether early natriuresis or its change during heart failure hospitalization is associated with the development of in-hospital diuretic resistance (DR).

First report of begomoviruses infecting L. in North America and identification of a proposed new begomovirus species.

Background: Members of the genus are phytopathogens that infect dicotyledonous plants, producing economic losses in tropical and subtropical regions. To date, only seven species of begomoviruses (BGVs) infecting cucumber have been described. Most cucumber infections were reported in South Asia.

An exclusive 42 amino acid signature in pp1ab protein provides insights into the evolutive history of the 2019 novel human-pathogenic coronavirus (SARS-CoV-2).

The city of Wuhan, Hubei province, China, was the origin of a severe pneumonia outbreak in December 2019, attributed to a novel coronavirus (severe acute respiratory syndrome coronavirus 2 [SARS-CoV-2]), causing a total of 2761 deaths and 81109 cases (25 February 2020). SARS-CoV-2 belongs to genus Betacoronavirus, subgenus Sarbecovirus. The polyprotein 1ab (pp1ab) remains unstudied thoroughly since it is similar to other sarbecoviruses.

Mechanistic insight into carbon-carbon bond formation on cobalt under simulated Fischer-Tropsch synthesis conditions.

Facile C-C bond formation is essential to the formation of long hydrocarbon chains in Fischer-Tropsch synthesis. Various chain growth mechanisms have been proposed previously, but spectroscopic identification of surface intermediates involved in C-C bond formation is scarce. We here show that the high CO coverage typical of Fischer-Tropsch synthesis affects the reaction pathways of CH adsorbates on a Co(0001) model catalyst and promote C-C bond formation.