DVT

Question 1

Epidemiology of DVT

Answer 1

1 in 1000 annually
Age 70+. M=F. Females have a higher recurrence rate.

Risk factors
cancer 
>60 years
smoking
surgery
trauma
thrombophilia, 
pregnancy, 
recent, family or personal Hx, 
Oral Contraceptives
HRT

Question 2

Aetiology of DVT

Answer 2

venous occulsion of deep vein in periphery

impaired venous return

Question 3

Pathogensis

Answer 3

venous occulsion due to thrombus -

thrombus can be RBC,fibrinogen, platelets

Question 4

manefestations

Answer 4

Mostly in lower leg but can manifest elsewhere in body.

Unilateral usually. (difference of 3cm between increased chance).
ALSO
Swelling of entire leg
Tenderness along vein distribution in Calf or thigh = increased probability

Question 5

Symptoms

Answer 5

tenderness along veins, calf pain.

Question 6

Signs

Answer 6

dilated superficial collaterals, swelling of entire leg, pitting oedema. +’ve h0mans sign.

there may be low grade fever.

Question 7

Complications

Answer 7

Pulmonary embolism, chronic venous insufficiency, post phlebitic syndrome

Question 8

Prognosis

Answer 8

3% risk of fatal Pulmonary Emob. Good prognosis if caught early.