Do you know about - Endovenous Laser Ablation (Evla) In the medicine of Varicose Veins
Ablation Procedure Recovery! Again, for I know. Ready to share new things that are useful. You and your friends.Laser stands for 'Light Amplification by the Stimulated Emission of Radiation'.
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We had a good read. For the benefit of yourself. Be sure to read to the end. I want you to get good knowledge from Ablation Procedure Recovery.Endovenous Laser Ablation (Avla) was invented by three doctors following a seminar at a venous meeting back in 1998. These were: Dr Luis Navarro & Dr Robert Min from the Usa and Dr Carlos Boné from Spain From their work, it became very apparent that when you heat a vein with adequate power to destroy the vein, it then shrivels away. This allowed no blood to return back down the vein as the vein was now closed, in the same way that no blood returns back down the vein initially after the vein has been stripped out. The follow of this means that all the conditions connected with varicose veins such as eczema, thrombophlebitis and leg ulcers were kept under control.
From this first study many new lasers have been developed, with new wavelengths, distinct types of fibres altering the way in which laser power is delivered and new technique to use them.
Even though there are many alternatives now on the market, the basic procedure remains consistent:
Using ultrasound for guidance, a needle is inserted into the vein. A wire is then passed straight through the needle and into the vein. A long tube is then passed over the wire and the wire removed. This leaves the tube in place within the vein which can be truly visualised using the ultrasound. (This is known as the "seldinger technique" and is widely used in intra-vascular procedures).
When the veins is being treated the temperatures can rise to 700 degrees Celsius; so to sacrifice the transfer of heat into the surrounding tissues a explication of dilute local anaesthetic is delivered colse to the vein. This is called "tumescent anaesthesia".
Once the tumescent anaesthesia is in place the laser fibre can then be developed down the tube and into the vein under ultrasound guidance. The fibre is then accurately positioned, again using the ultrasound, about 2cm below the level of the sapheno femoral junction, when treating the great saphenous.
The laser is then fired and the sheath with the laser fibre protruding 2cm out of the end of the sheath pulled back down the vein at the definite speed, commonly between 5 and 6 seconds per centimetre to delver power in the region of 60-80 joules per cm of vein.
Research shows that with this amount of power the vein is destroyed and limits the amount of bruising and pain post operatively to the patient. The body then re-routes the blood via veins that are working correctly.
One of the main advantages with this technique over the conventional stripping out of the vein, is that because the vein is terminated in situ and not removed there is no way in which the vein can re-grow. The proteins in the wall of the vein has been denatured using the laser power and so the bodies own defence mechanism does not recognise the vein as being part of its own law and the white blood cells come along and destroy the vein until it has fully gone.
Endovenous laser rehabilitation of the vein allows patients to be treated on the Nhs or in a incommunicable setting, as a walk in - walk out treatment, with the whole procedure taking about 1 hour from start to desist and the patient leaving with just a compression stocking on to aid healing.
One of the most recent laser's to hit the market is the Fotona Xp 2 which is a Qcw Nd:Yag laser that can create peak powers beyond 5Kw, ensuring the top performance efficiency. The advantages the Nd:Yag laser has over the diode lasers is that it strikes a exquisite balance in its absorption in various body chromophores, allowing it to be safely, effectively and efficiently used in numerous procedures together with endovenous laser ablation.
Numerous studies already show that the Nd:Yag laser minimizes patient discomfort, increases success rate and shortens salvage time. The Fotona is able to deliver power as whether a continuous wave or in pulsed wave allowing best control of the procedure and more versatility.
The advantages of the Fotona delivered laser power for varicose veins are
Treatment commonly with in 1 hour rehabilitation in case,granted as a walk in walk out assistance as an office based procedure 98% success rate commonly an Immediate relief of symptoms A quick return to normal activity limited or no pain or bruising No normal aesthetic or hospital stay required commonly covered by insurance
Further rehabilitation of the residual varicose veins maybe significant with other rehabilitation type such as phlebectomy or sclerotherapy.
They then published a paper on the technique in 2001.
This showed that, up to 1 years 2 months post rehabilitation of the great saphenous vein with 810 nm diode laser energy, a 100% rate of closure had been achieved with no significant complications.
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