Why the study?
Does rapid atrial pacing help diagnose significant coronary artery disease in patients with anginal-type pain?
Does rapid atrial pacing help diagnose significant coronary artery disease in patients with anginal-type pain?
Rapid atrial pacing requiring rates of 180 beats/minute or more to produce chest pain is associated with normal coronary angiograms, suggesting it may help rule out significant CAD.
Answers are grounded in this paper and cite their sources.
Pacing-induced pain only at ≥180/min was associated with normal coronaries; leaves open rapid atrial pacing's diagnostic utility in anginal pain.
Seventeen patients presenting with anginal-type pain were studied by bicycle exercise testing, rapid atrial pacing, and coronary angiography. Ten patients with angina and abnormal pacing tests at rates less than 180/minute were found to have significant coronary artery disease as demonstrated by coronary angiography. Seven patients with pacing-induced chest pain only at rates of 180 and above had normal coronary angiogram. This suggests that patients requiring rates of 180 or more to produce a positive atrial pacing test, following our protocol, do not usually have significant coronary artery disease though confirmation requires a larger study.
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Robson et al. (1976) studied this question.
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