Wells probability score for PE

Definition: Pulmonary embolism is an acute disorder characterized by blockage of the main pulmonary arteries or one of its branches caused by an embolism.

 

Wells score

 Clinically suspected DVT              3.0 points
Alternative Diagnosis is less likely then PE 3.0 points
Tachycardia (heart rate >100) 1.5 points
Immobilization ( >3d ) / surgeery in previous four weeks 1.5 points
History of DVT or PE 1.5 points
Hemoptysis 1.0 points
Malignancy ( with treatment within 6 months ) or Palliative 1.0 points

 

Interpretation:

Traditional interpretation

Score >6.0:                 High (probability 59% based on pooled data)
Score 2.0 to 6.0:         Moderate (probability 29% based on pooled data)
Score <2.0:                 Low (probability 15% based on pooled data[15])

Alternative interpretation:

Score > 4:                  PE likely. Consider diagnostic imaging.
Score 4 or less:          PE unlikely. Consider D-dimer to rule out PE

تاريخ النشر : 01 مايو 2017
تاريخ آخر تحديث : 11 مايو 2017
المشاهدات : 175