CT Pulmonary Angiography Predictors for Mortality in Pulmonary Embolism Based on the Study of Aviram et al

Description

Aviram et al identified changes on CT pulmonary angiography that are associated with mortality for a patient with pulmonary embolism. These can help to identify a patient who may benefit from more aggressive management. The authors are from Tel Aviv University.

Patient selection: acute pulmonary embolism

Outcome: 30-day mortality

Exam: CT pulmonary angiography

Parameters:

(1) left atrial volume in mL

(2) left venticular volume in mL

(3) ratio of right atrial to left atrial volumes

Parameter	Finding	Points
left atrial volume	<= 62 mL	1
	> 62 mL	0
left ventricular volume	<= 67 mL	1
	> 67 mL	0
right to left atrial volume ratio	<= 1.2	0
	> 1.2 mL	1

total number of risk factors =

= SUM(points for all 3 parameters)

Interpretation:

• minimum number of risk factors: 0

• maximum number of risk factors: 3

• The risk of mortality increases with the number of risk factors.

• Left atrial volume was the best predictor with an adjusted hazard ratio of 2.4.

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CT Pulmonary Angiography Predictors for Mortality in Pulmonary Embolism Based on the Study of Aviram et al

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