Evaluation of three diagnostic algorithms to reduce normal scan rates, radiation exposure and costs in patients with suspected chronic coronary syndrome referred for 82Rb-Positron Emission Tomography (Rb-PET).

Background: The majority of functional ischemia tests in patients with suspected chronic coronary syndromes (CCS) yield normal results. Implementing gatekeepers for patient preselection, such as pretest probability (PTP) and/or coronary artery calcium score (CACS), could reduce the number of normal scan results, radiation exposure and costs. However, the efficacy and safety of these approaches remain unclear.

Safety and immunogenicity of ascending doses of influenza A(H7N9) inactivated vaccine with or without MF59®.

Introduction: While it remains impossible to predict the timing of the next influenza pandemic, novel avian influenza A viruses continue to be considered a significant threat.

Methods: A Phase II study was conducted in healthy adults aged 18-64 years to assess the safety and immunogenicity of two intramuscular doses of pre-pandemic 2017 influenza A(H7N9) inactivated vaccine administered 21 days apart. Participants were randomized (n = 105 in each of Arms 1-3) to receive 3.

Surgical management of atrioesophageal fistula after catheter ablation of atrial fibrillation: A French nationwide study.

Objective: The study objective was to assess the efficacity of different surgical strategies for atrioesophageal fistula after catheter ablation of atrial fibrillation.

Methods: Between January 2010 and April 2023, all patients with a diagnosis of atrioesophageal fistula or pericardo-esophageal fistula after catheter ablation of atrial fibrillation were analyzed retrospectively from the French database EPITHOR. Patients without surgical management were excluded.

Nitrogen Deposition Weakens Soil Carbon Control of Nitrogen Dynamics Across the Contiguous United States.

Anthropogenic nitrogen (N) deposition is unequally distributed across space and time, with inputs to terrestrial ecosystems impacted by industry regulations and variations in human activity. Soil carbon (C) content normally controls the fraction of mineralized N that is nitrified (ƒ), affecting N bioavailability for plants and microbes. However, it is unknown whether N deposition has modified the relationships among soil C, net N mineralization, and net nitrification.