The role of signal averaged P wave duration and serum magnesium as a combined predictor of atrial fibrillation after elective coronary artery bypass surgery.
Why the study?
Does the combination of signal averaged P wave duration and low serum magnesium predict atrial fibrillation in patients undergoing elective coronary artery bypass surgery?
Population
105 consecutive patients undergoing elective coronary artery bypass surgery
Design
Case-control
Follow-up
Until hospital discharge (mean 6.8 to 7.9 days)
Authors
Discussion
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Implication
May aid post-CABG AF risk stratification; hypothesis-generating and requires prospective validation before clinical use.
Structured PICO
Does the combination of signal averaged P wave duration and low serum magnesium predict atrial fibrillation in patients undergoing elective coronary artery bypass surgery?
P
Population
105 consecutive patients undergoing elective coronary artery bypass surgery
I
Intervention
Assessment of signal averaged P wave duration and serum magnesium levels
O
Outcome
Any episode of electrocardiographically recorded atrial fibrillationhard clinical
The combination of prolonged signal averaged P wave duration and low postoperative serum magnesium identifies patients at high risk for atrial fibrillation after CABG.
Cite This Study
Zaman et al. (1997) studied this question.