Outcomes
We collected data on in-hospital mortality as well the development of hemodynamic compromise (HC) following ATA. To determine HC in those with new-onset ATA, the maximum NE Eq doses of vasopressor recorded the hour before the onset of ATA were compared with the maximum NE Eq dose of vasopressors during the hour after the onset of these arrhythmias. Participants were classified as having HC following ATA if their NE Eq vasopressor dose requirement increased or if direct current cardioversion was performed within one hour of acute arrhythmia onset.