IRCT20230721058865N1 IRCT 2023-08-05 Tehran University of Medical Sciences Comparative study of radiofrequency ablation & foam sclerotherapy for treatment patients suffering from varicose veins Thermal ablation versus foam sclerotherapy for treatment of small saphenous vein 2023-08-23 anticipated 50 Complete https://irct.ir/trial/71545 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: A simple randomization method is used, in which the randomization unit is individual, and random sequence generation software (Random Number Generator software) is used. For concealment, non-transparent sealed envelopes with a random sequence are used. In this method, each random number created is recorded on a card and the cards are placed inside the envelopes in order. To maintain the random sequence of the envelopes on the outer surface, the numbering is done in the same order. Finally, the lids of the envelopes are glued and placed in a box. At the time of registration of the participants, based on the order of entry of the eligible participants into the study, one of the envelopes will be opened and the allocated group of that participant will be revealed. N/A Small saphenous vein reflux. Intervention 1: Intervention group: Interventional Group 1: This group was treated with radiofrequency ablation. Treatment includes segmental thermal ablation of a small saphenous vein through a catheter by a seven-centimeters element. In each segment, the temperature remains at about 120 degrees centigrade for 20 seconds. Intervention 2: Intervention group: Intervention group 2 (Foam sclerotherapy): This group will be treated with Foam sclerotherapy. The foam was injected into the vein Under ultrasound guidance. It causes ablation in the vein Endothelium by chemical inflammation. Yes - There is a plan to make this available What will be shared: In the case of the participant's data file, three months after the publication of the article and after the un-identification of the persons, the request can be sent by email. When: Three months after the publication of the article, upon request, by email, there is a possibility to post. To whom: Only scholars working in academic and scientific institutions Conditions: The name of the first author of the study is required in an extracted article from the study data. In this case, it is possible to perform any statistical analysis. Where to obtain: Correspondence by e-mail with the Doctor Yaser Jenab yasjenab@gmail.com How to obtain: Up to one week after receipt of the email, the requested documentation is sent. Comments: