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The association between pulmonary artery enlargement and mortality in an Emergency Department population undergoing computed tomography pulmonary angiography
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The association between pulmonary artery enlargement and mortality in an Emergency Department population undergoing computed tomography pulmonary angiography
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The association between pulmonary artery enlargement and mortality in an Emergency Department population undergoing computed tomography pulmonary angiography
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Journal Article
The association between pulmonary artery enlargement and mortality in an Emergency Department population undergoing computed tomography pulmonary angiography
2023
Overview
Findings of an enlarged pulmonary artery diameter (PAd) and increased pulmonary artery to ascending aorta ratio (PA:AA) on contrast‐enhanced computed tomography pulmonary angiography (CTPA) are associated with increased mortality in particular groups of patients with cardiopulmonary disease. However, the frequency and prognostic significance of these incidental findings has not been studied in unselected patients evaluated in the Emergency Department (ED). This study aims to determine the prevalence and associated prognosis of enlarged pulmonary artery measurements in an ED cohort. We measured PA and AA diameters on 990 CTPA studies performed in the ED. An enlarged PA diameter was defined as >27 mm in females and >29 mm in males, while an increased PA:AA was defined as >0.9. Poisson regression was performed to calculate prevalence ratios for relevant comorbidities, and multivariable Cox regression was performed to calculate hazard ratios (HR) for mortality of patients with enlarged pulmonary artery measurements. An enlarged PAd was observed in 27.9% of 990 patients and was more commonly observed in older patients and in patients with obesity or heart failure. Conversely, PA:AA was increased in 34.2% of subjects, and was more common in younger patients and those with peripheral vascular disease or obesity. After controlling for age, sex, and comorbidities, both enlarged PAd (HR 1.29, 95% CI 1.00–1.68, p = 0.05) and PA:AA (HR 1.70, 95% CI 1.31–2.22 p < 0.01) were independently associated with mortality. In sum, enlarged PAd and increased PA:AA are common in patients undergoing CTPAs in the ED setting and both are independently associated with mortality.
Publisher
John Wiley & Sons, Inc,John Wiley and Sons Inc,Wiley
