0000000000781451
AUTHOR
J. Vargas
Early outcomes and complications following cardiac surgery in patients testing positive for coronavirus disease 2019: An international cohort study
The outbreak of severe acute respiratory syndromecoronavirus-2, the cause of coronavirus disease 2019 (COVID-19) in December 2019 represented a global emergency accounting for more than 2.5 million deaths worldwide.1 It has had an unprecedented influence on cardiac surgery internationally, resulting in cautious delivery of surgery and restructuring of services.2 Understanding the influence of COVID-19 on patients after cardiac surgery is based on assumptions from other surgical specialties and single-center studies. The COVIDSurg Collaborative conducted a multicenter cohort study, including 1128 patients, across 235 hospitals, from 24 countries demonstrating perioperative COVID-19 infection…
Precursors of aza-macrocycles: Characterization of substituted phenanthrolines and related bases. Crystal and molecular structure of dichloro-d i-n-butyl(2,2',6,6'-bipyrimidine)tin(IV)
The synthesis, characterization and 1~ NMR spectra of some substituted 1,lO-phenantrolines are described. These are precursors of azacyclophanes which are, along with their metal complexes, insoluble in polar solvents. It is suggested that the use of substituted 2,2’, 6,6’ -bipyrimidines as precursors would lead to soluble macrocycles. The crystal and molecular structure of dichloro-di-n-butyl(2,2’,6,6’-bipyr
Machine learning risk prediction of mortality for patients undergoing surgery with perioperative SARS-CoV-2: the COVIDSurg mortality score
The British journal of surgery 108(11), 1274-1292 (2021). doi:10.1093/bjs/znab183