What is lower extremity thromboangiitis obliterans?

In real life, lower limb thromboangiitis obliterans is a common disease. The human body structure is complex, and venous blood vessels may also have some diseases. The incidence of lower limb thromboangiitis obliterans is mainly higher in men because men smoke more, resulting in blood vessel obstruction, etc., or because of frequent fatigue in life and work. How should lower limb thromboangiitis obliterans be treated?

Causes

It is currently believed that this disease is caused by occlusion of small arteries due to spasm and thrombosis, resulting in local ischemia. Half of them are accompanied by Raynaud's phenomenon, which is more common in men and smokers. Smoking is closely related to the course and prognosis of this disease.

Clinical manifestations

This disease is more common in young and middle-aged people, and is prone to occur in the lower limbs. The affected limb shows temporary or persistent pallor, cyanosis, burning and tingling. The skin turns red when the affected limb is hanging and turns white when it is raised. It is followed by numbness of the toes and pain in the calf muscles. The pain is stimulated when walking and disappears when resting. Superficial phlebitis and edema often occur in the calf. During the examination, it was found that the dorsalis pedis artery pulse was weakened or disappeared. As the disease progresses, intermittent claudication and Raynaud's phenomenon may occur, pain may intensify at night, the toes may become extremely painful, the skin may become cyanotic, and then the toe tips may ulcerate or become gangrenous and turn black, gradually spreading to the proximal end.

diagnosis

The diagnosis can be made based on the patient's paroxysmal limb pain, intermittent claudication, weakened or absent dorsalis pedis artery pulse, and migratory superficial phlebitis.

It should be distinguished from occlusive arteriosclerosis. The latter are over 40 years old and often have hypertension, diabetes, hyperlipidemia and coronary atherosclerotic heart disease. The large and medium arteries are often affected, and the disease progresses rapidly. X-rays or vascular color Doppler ultrasound examinations may show calcification in the arterial wall of the affected limb.

prevention

Smoking is not allowed. Protect your feet from cold and dampness, avoid trauma, and prevent limb vascular spasms. Change your body position appropriately when working to prevent prolonged compression of blood vessels in the limbs and affecting blood circulation.