Why the study?
Does the single-clamp technique compared to the double-clamp technique affect postoperative cardiac troponin I concentrations in patients undergoing on-pump coronary artery bypass grafting?
Does the single-clamp technique compared to the double-clamp technique affect postoperative cardiac troponin I concentrations in patients undergoing on-pump coronary artery bypass grafting?
The single-clamp technique during on-pump CABG is safe and results in similar postoperative cardiac troponin I levels compared to the double-clamp technique.
Similar troponin I levels with single- versus double-clamp in on-pump CABG should not change practice; leaves open need for randomized confirmation.
Perioperative myocardial infarction remains a frequent complication after coronary artery bypass grafting, and is associated with a poor prognosis. This retrospective study compared cardiac troponin I concentrations after on-pump bypass grafting in 2 groups of patients: 100 operated on using a single-clamp technique to perform anastomoses, and 80 operated on using a double-clamp technique. Postoperative cardiac troponin I levels were not significantly different between groups. It was concluded that the double-clamp technique did not reduce the incidence of myocardial infarction after elective on-pump coronary artery bypass grafting, and use of a single clamp is safe with no adverse effect on postoperative outcome.
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Capuano et al. (2007) studied this question.
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