The ROOBY investigators found off-pump CABG surgery to be significantly inferior to on-pump surgery with regard to 1 year mortality, revascularization, or new myocardial infarction. This unexpected finding could be related to the fact that most of the participating surgeons were experienced in on-pump CABG surgery, but relatively inexperienced in the off-pump procedure.
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Guyton, R. On-pump or off-pump CABG surgery—under the spotlight. Nat Rev Cardiol 7, 64–65 (2010). https://doi.org/10.1038/nrcardio.2009.234
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DOI: https://doi.org/10.1038/nrcardio.2009.234
