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TABLE 2.30. Clinical Considerations in the Treatment of DVT


Proximal DVT
Immediate anticoagulation with heparin and warfarin until INR therapeutic

Massive DVT
Vascular surgery consult for thrombectomy
Consider thrombolysis
Consider IVC filter placement

Isolated calf vein thrombosis
These veins have a low risk for embolization but
At least 25% will propagate proximally, where they mayembolize
Options include anticoagulation (for high-risk patients) or
ASA and follow-up ultrasound in 3—7 days

Proximal greater saphenous vein clot
Too close to the deep system for comfort!
Anticoagulate

Recurrent DVT on adequate warfarin
Add heparin
Indication for IVC filter placement

Propagation of DVT on adequate warfarin and heparin
Indication for IVC filter placement

COMPLICATIONS


■ PE
■ Chronic venous insufficiency
■ SVC syndrome (upper extremity clot)
■ From therapy: Heparin-induced thrombocytopenia, warfarin skin necrosis,
bleeding
■ Post-phlebitic syndrome


A 40-year-old female 1 week status post mastectomy presents with mild
R-sided pleuritic chest pain and dyspnea. Her initial BP is 124/72, HR is 122,
O 2 saturation is 90% on room air, and temperature is 101ºF. Exam reveals
equal breath sounds with no rales or rhonchi. There is no redness or swelling over
the chest wall. There is no swelling in the legs. What is the study of choice in this
patient?
CT angiogram of chest to evaluate for PE. Because this patient has a high
pretest probability for PE, a D-dimer is not indicated. CT can also detect abscess
or pneumonia in this patient.

CARDIOVASCULAR EMERGENCIES
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