Inferior vena cava thrombosis
Deep vein thrombosis is a common clinical disease, and inferior vena cava thrombosis is a serious type, with many complications and poor prognosis. The incidence rate has increased in recent years, especially in advanced tumors, during tumor chemotherapy and chemotherapy. The increase of inferior vena cava thrombosis after the implantation of vena cava thrombus has attracted the attention of doctors. Venous thrombosis mainly occurs in the extremities. The lower extremities are common in the extremities and the thrombus in the inferior vena cava is rare. In particular, the inferior vena cava thrombosis formed by trauma is rare.
The main causes of venous thrombosis are:
(1) Damage to the venous wall;
(2) slow blood flow;
(3) Increased blood coagulability.
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Venous thrombosis mainly occurs in the extremities. The lower extremities are common in the extremities and the thrombus in the inferior vena cava is rare. In particular, the inferior vena cava thrombosis formed by trauma is rare. Inferior vena cava thrombosis is rare and difficult to diagnose. Ultrasound is the easiest, fastest, and most accurate method of examination. The correct diagnosis of ultrasound is a reliable basis for clinicians to take timely, correct and effective treatment and prevention of complicated pulmonary and cerebral embolism. , and can dynamically observe its progress, is the preferred method for clinical follow-up of treatment effects.
The acute and chronic phases of deep thrombosis in the lower extremities should be differentiated from the following diseases:
(1) Acute arterial embolism
The disease is also often manifested as sudden pain in the unilateral lower extremity, similar to the venous thrombosis of the lower extremity, but the limbs are not swollen during acute arterial embolization, mainly characterized by cold and painful foot, calf skin, numbness, voluntary movement. And the loss of skin sensation, the dorsal artery of the foot and the posterior tibial artery disappeared, and sometimes the femoral artery beat also disappeared. According to the above characteristics, the identification is easier.
(B) acute lower extremity diffuse lymphangitis
The disease is also rapid, limb swelling, often accompanied by chills, high fever, red skin, elevated skin temperature, superficial veins are not varietal, according to the above characteristics, can be distinguished from deep venous thrombosis of the lower extremities.