Suboptimal implementation of diagnostic algorithms and overuse of computed tomography-pulmonary angiography in patients with suspected pulmonary embolism

Autor: Sulaiman Alhassan, Alaa Abu Sayf, Camelia Arsene, Hicham Krayem
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Annals of Thoracic Medicine, Vol 11, Iss 4, Pp 254-260 (2016)
Druh dokumentu: article
ISSN: 1817-1737
1998-3557
DOI: 10.4103/1817-1737.191875
Popis: Background: Majority of our computed tomography-pulmonary angiography (CTPA) scans report negative findings. We hypothesized that suboptimal reliance on diagnostic algorithms contributes to apparent overuse of this test. Methods: A retrospective review was performed on 2031 CTPA cases in a large hospital system. Investigators retrospectively calculated pretest probability (PTP). Use of CTPA was considered as inappropriate when it was ordered for patients with low PTP without checking D-dimer (DD) or following negative DD. Results: Among the 2031 cases, pulmonary embolism (PE) was found in 7.4% (151 cases). About 1784 patients (88%) were considered “PE unlikely” based on Wells score. Out of those patients, 1084 cases (61%) did not have DD test prior to CTPA. In addition, 78 patients with negative DD underwent unnecessary CTPA; none of them had PE. Conclusions: The suboptimal implementation of PTP assessment tools can result in the overuse of CTPA, contributing to ineffective utilization of hospital resources, increased cost, and potential harm to patients.
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