Key result
A modified Wells score >4 was associated with a higher rate of confirmed pulmonary thromboembolism on CTPA compared to a score ≤4 (30.7% vs 11.1%, P<0.001).
Why the study?
Does the underuse of clinical prediction rules and D-dimer assays lead to overuse of CTPA in patients with suspected pulmonary thromboembolism?
Population
344 consecutive patients with suspected pulmonary thromboembolism undergoing computed tomography pulmonary…
Design
Cohort
Authors
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May aid pretest probability assessment before CTPA; leaves open need for prospective validation of score-guided imaging strategies.
Observational (n=344)
No
Does the underuse of clinical prediction rules and D-dimer assays lead to overuse of CTPA in patients with suspected pulmonary thromboembolism?
Absolute Event Rate: 30.7% vs 11.1%
p-value: p=<0.001
More than 50% of patients with suspected pulmonary thromboembolism undergo potentially unwarranted CTPA due to the underutilization of clinical prediction rules and D-dimer testing.
Perera et al. (2017) conducted an observational in suspected pulmonary thromboembolism (n=344). Modified Wells score >4 vs. Modified Wells score ≤4 was evaluated on Pulmonary thromboembolism (PTE) on CTPA (p=<0.001). A modified Wells score >4 was associated with a higher rate of confirmed pulmonary thromboembolism on CTPA compared to a score ≤4 (30.7% vs 11.1%, P<0.001).
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