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Trends Over Time in the Relative Use and Associated Mortality of On-Pump and Off-Pump Coronary Artery Bypass Grafting in the Veterans Affairs System
This retrospective study from the US Veterans Affairs Surgical Quality Improvement Program evaluated the use of off-pump bypass over time for primary isolated CABG. Peak use in 2003 was 24%, which then decreased and stabilized at 19%. Conversion rates steadily declined to a stable rate of under 3.5%. Mortality for on-pump and off-pump CABG has remained below 2% since 2006.