Key result
Routine dipyridamole thallium scanning detected critical coronary artery disease in 36% of patients with a prior cardiac history versus 0% in those without such history.
Why the study?
Does routine dipyridamole thallium scanning detect critical coronary artery disease in low-risk patients presenting for elective aortic surgery?
Population
68 consecutive patients presenting for elective aortic surgery, judged by clinical assessment to be at low…
Design
Cohort
Authors
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Supports selective preoperative scanning in patients with cardiac history; leaves open routine use in those without prior disease.
Cohort (n=68)
Does routine dipyridamole thallium scanning detect critical coronary artery disease in low-risk patients presenting for elective aortic surgery?
Absolute Event Rate: 36% vs 0%
Dipyridamole thallium scanning prior to elective aortic surgery is useful for detecting critical CAD in patients with a history of MI, angina, or abnormal echo, but unnecessary in those without such history.
Dale J. Strawn (1991) conducted a cohort in Elective abdominal aortic surgery (n=68). Dipyridamole thallium scanning in patients with prior cardiac history vs. Patients without prior cardiac history was evaluated on Incidence of critical coronary artery disease (95% CI 21% to 50%). Routine dipyridamole thallium scanning detected critical coronary artery disease in 36% of patients with a prior cardiac history versus 0% in those without such history.
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