8.Evaluation of thrombosis Flashcards
(14 cards)
Homan’s sign
calf discomfort on foot dorsiflexion (DVT)
what is considered chronic thromboembolic disease?
recurrent PE events presenting with signs of pulmonary hypertension and right-sided HF
How is Wells criteria for DVT scored?
score ≤ 0 –> low probability
score 1-2 –> moderate probability
score ≥3 –> high probability
How is Wells criteria for PE scored?
score ≤ 2 –> low probability
score 2.5-6 –> moderate
score ≥ 6 –> high
High negative predictive value for low-risk DVT
D-dimer
cut off value 500 ng/mL
high sensitivity, poor specificity
why is a Chest X-ray used in PE?
For DD of acute chest pain
PE pattern seen on V/Q scan
multiple areas of perfusion defects, not matched with defects in ventilation (ventilated but not perfused)
*used when CT is not available or CI
Most widely used imaging modality for the diagnosis of PE
CT angiography
>90% sensitivity
>95% specificity
Most widely used imaging modality for the diagnosis of PE
CT angiography
>90% sensitivity
>95% specificity
12% of patients with idiopathic DVT/PE will have?
malignancy
12% of patients with idiopathic DVT/PE will have?
malignancy
treatment for superficial venous thrombosis
anticoagulant for 4 weeks (high risk for DVT)
-elevate extremity—> warm compresses, NSAID’s
treatment for lower extremity DVT
proximal–> anticoagulante
distal–> anticoagulant if severe symptoms
*upper extremity and PE (anticoagulant)
complications of PE
- Chronic thromboembolic pulmonary hypertension (CTEPH)
- Right-sided HF (secondary to pulmonary HTN)
- persistant Pleural effusion
- post-thrombotic syndrome - chronic venous insufficiency
- Recurrent DVT
