Shortcomings of Physical Examination and Impedance Plethysmography in the Diagnosis of Lower Extremity Deep Venous Thrombosis

Abstract

Accuracy in the diagnosis of lower extremity deep venous thrombosis (DVT) by physical examination and impedance plethysmography (IPG) is reviewed. Physical examination proved unreliable in distinguishing patients with and without acute disease. Swelling in the leg was, however, more prevalent in patients with DVT. The sensitivity and specificity of IPG were less than those reported by other groups. Venography remains the most reliable diagnostic procedure in our institution.