Key result
Coronary artery bypass graft surgery was associated with a 40-50% greater reduction in postoperative heart rate variability compared to nonthoracic vascular surgery (P < 0.05).
Why the study?
Does coronary artery bypass graft surgery alter heart rate variability compared to nonthoracic vascular surgery or healthy controls?
Population
74 adults, comprising 40 patients undergoing elective coronary artery bypass graft surgery, 15 patients…
Comparison
Coronary artery bypass graft (CABG) surgery vs Nonthoracic major vascular surgery and healthy…
Design
Cohort
Follow-up
up to postoperative day 5
Authors
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CABG may signal greater autonomic impairment warranting monitoring caution; leaves open prognostic value and need for prospective trials.
Cohort (n=74)
Does coronary artery bypass graft surgery alter heart rate variability compared to nonthoracic vascular surgery or healthy controls?
p-value: p=< 0.05
Uncomplicated CABG surgery is associated with a significant and persistent reduction in heart rate variability compared to nonthoracic vascular surgery, suggesting impaired cardiac autonomic nervous system function postoperatively.
Hogue et al. (1994) conducted a cohort in Coronary artery bypass graft surgery (n=74). Coronary artery bypass graft surgery vs. Nonthoracic major vascular surgery and healthy volunteers was evaluated on Heart rate variability (HRV) (p=< 0.05). Coronary artery bypass graft surgery was associated with a 40-50% greater reduction in postoperative heart rate variability compared to nonthoracic vascular surgery (P < 0.05).
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