Edema
Edema may be one of the manifestations of a DVT, but it can also result from a myriad of other local and systemic conditions. Edema associated with DVT is usually unilateral, or may be more severe on one side. Conditions that may cause extremity edema include but are not limited to:
A DVT should be suspected if the edema is acute and unilateral in the extremity. Further medical screening will show that central venous pressure and renal function are normal (ruling out systemic causes), and there is a poor response of the edema to diuretics.
Sterns, R. (2013) "Clinical manifestations and diagnosis of edema in adults." UpToDate.
- Heart failure: Peripheral edema only may indicate R sided heart failure, and shortness of breath may indicate left heart failure with pulmonary edema.
- Renal failure/nephrotic syndrome
- Lymphedema (Unilateral or bilateral)
- Venous insufficiency (May be unilateral or bilateral)
- Idiopathic edema
- Phlegmasia cerulea dolens, a more severe, uncommon form of DVT with severe pain, edema and and cyanosis of the lower extremity, potential gangrene of the foot, and a greatly increased risk of pulmonary embolism
A DVT should be suspected if the edema is acute and unilateral in the extremity. Further medical screening will show that central venous pressure and renal function are normal (ruling out systemic causes), and there is a poor response of the edema to diuretics.
Sterns, R. (2013) "Clinical manifestations and diagnosis of edema in adults." UpToDate.