Laser therapy of various vascular damage is applied since 1970. In recent years with the introduction of new wavelengths and adjustable pulse duration at Nd: YAG-laser, it becomes much safer and effective, maximum spares the patient and eliminates the risk of complications and side effects. The advances in laser technology have revolutionized the treatment of pronounced veins, bluish capillary networks in the face, angiokeratomas, hemangiomas, vascular malformations in the lower limbs.
What is the principle of action?
Hemoglobin and oxyhemoglobin are the main goal of the Nd: YAG laser light. The energy is absorbed by blood vessels generating heat and the wall of the vessel bursts. As a result, the vein was killed, and the natural processes in the body clear the venous tissue for a period of several days to several weeks. In general, with Nd: YAG may be treated veins with a diameter of 4 mm. In Nd: YAG laser therapy of vascular lesions are used two methods: selective photothermolysis and homogeneous photothermolysis. Selective photothermolysis is used for superficial red veins. It is obtained when using a wavelength that is absorbed into the blood (hemoglobin and oxyhemoglobin). The shield of coagulated blood in the upper layer retains much of the treated region unaffected.
Homogeneous photothermolysis is ideal for larger and deeper situated veins. Here is used the fact that the blood contains protein with a specific coagulation factor, more sensitive to temperature than the surrounding tissue.
How many procedures are needed?
The patient should expect several therapeutic series, if wishes complete clearing of vessels. Of great significance for the duration of treatment is the type of vascular damage, dimensions, depth, and the type of skin. It is important to know that the reabsorption of the vessels is different for different people and the period for complete recovery can last from several days to several weeks. It should be noted that facial veins tend to develop again in time. It is therefore recommended to the patient to discuss the maintenance plan by which to monitor the results and to appoint new procedures if necessary.
Are there any restrictions after the procedure?
Yes, at least three days to avoid hot baths. A shower can be used (lower temperatures are recommended), if the elastic bandage is placed again after the shower. Three days to avoid gymnastic exercises because they increase blood flow and can cause problems in the blood vessel. It is necessary to use sunscreen at least 6 weeks.