Volschan et al reported a score for predicting hospital mortality for a patient with a pulmonary embolism who is hemodynamically stable. The authors are from multiple institutions in Brazil.
Patient selection: hospital patient with pulmonary embolism who is hemodynamically stable
Parameters:
(1) age in years
(2) duration of bed rest in hours
(3) chronic cor pulmonale
(4) sinus tachycardia (heart rate > 100 beats per minute)
(5) tachypnea (> 20 breaths per minute)
Parameter
Finding
Points
age in years
<= 65 years
0
> 65 years
3
duration of bed rest
<= 72 hours
0
> 72 hours
2
chronic cor pulmonale
absent
0
present
4
sinus tachycardia
absent
0
present
2
tachypnea
absent
0
present
2
total score =
= SUM(points for all 5 parameters)
Interpretation:
• minimum score: 0
• maximum score: 13
• The higher the score the greater the risk of mortality.
Total Score
Risk Group
Risk of Mortality
<= 3
low
5.4%
4 to 6
moderate
17.8%
>= 7
high
31.3%
Performance:
• The area under the ROC curve is 0.77.
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