Venous Pathology Flashcards
Upper extremity signs and symptoms
Unilateral arm or hand swelling
Superficial palpable cord
Erythema
Pain and tenderness
Facial swelling or dilated chest wall collaterals
Suggestive of superior vena cava thrombosis
Upper extremity patients may present with….
Indwelling catheters or history of venous catheters
Asymptomatic patients
May be examined before central catheter placement or prior to pacemaker placement
Upper extremity veins may also be evaluated in patients
Suspected of pulmonary embolism
PE symptoms
chest pain, tachypnea, or tachycardia
Virchow’s Triad
Venous stasis
Hypercoagulability
Vessel wall injury
Upper extremity thrombosis more common due to
Injury to vessels wall
More frequent introduction of needles and catheters into arm veins
what veins are commonly used for indwelling catheters
Subclavian and internal jugular veins
May be associated with upper extremity thrombosis
PICCS may also be
A cause of thrombosis
Catheter is inserted through basilic or cephalic vein then positioned near right atrium
Paget-Shrotter syndrome
Venous thrombosis associated with compression of subclavian vein at the thoracic outlet
AKA effort thrombosis
Typical patients are young, athletic, and muscular males
What are risk factors for thrombus
Trauma Immobility or paralysis Prior DVT Recent major surgery Cancer or chemotherapy Family history CHF Pregnancy Oral contraceptives Hypercoagulability Prolonged bed rest
Acute thrombus
Is uniform in texture, with low-level echoes that may be difficult to visualize
- Is soft, or slightly compressible
- Is poorly attached; may sometimes “flap about” within the vessel
- Distends the vessel
Chronic Thrombus
Is heterogeneous, with bright echoes
•Does not compress
•Is rigidly attached
•Tends to contract the vessel and may show a partial recanalization of the vein with a tortuous flow channel with well-developed collateral circulation
Superficial venous thrombus
Diagnosed clinically with a painful superficial cord with surrounding erythema
Venous insufficiency
AKA Reflux Incompetent valves Allows retrograde flow Veins enlarge due to pressure increase Can become infected Postphlebitic syndrome aka postthrombotic syndrome