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2011 | 83 | 11 | 597-605

Article title

A Prospective Comparison of Four Methods of Endovenous Thermal Ablation


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The aim of the study was to compare clinical and duplex Doppler results of treatment of varicose veins with four methods of endovenous thermal ablation (EVTA).Material and methods. The results of treatment of varicose veins with 980 nm laser (EVLA980) in 67 extremities, with a radiofrequency ablation (RFA) in 43 extremities, with 810 nm laser (EVLA810) in 46 extremities and with 1470 nm laser (EVLA1470) in 15 extremities were prospectively analyzed. The data on patients' demographics, weight, stage of the venous disease, type of anesthesia, duration of the procedure, linear energy density (LED) applied, intra- and postoperative complications were collected. Thromboprophylaxis was not routinely administered. The patients were followed clinically and with duplex Doppler for 12 (1-24) months.Results. Technical success was achieved in 99% of limbs. The procedure was carried out under local anesthesia in 140 (91%) of patients. In 17 patients bilateral procedure was performed. There were one gastroenemius muscle vein thrombosis and one protruding thrombus from sapheno-femoral junction in EVLA810. No other serious complications were observed. A median LED was higher in EVLA810 than in EVLA980 and EVLA1470, 86.8 (82-94), 59.2 (45.4-74.4) and 58.8 (53-67.7) J/cm, respectively (p<0.001), though only in EVLA980 was below the intended range. Recanalization rates were 7% after EVLA980, 2% after EVLA810 and 0% after RFA and EVLA1470, p=0.14. The vein shrinking was fastest after EVLA1470. Neither neovascularization nor formation of arteriovenous fistulas was observed. Permanent saphenous nerve paresthesia occurred in two patients after RFA.Conclusions. All methods of ambulatory EVTA are safe and effective once the adequate linear energy density is applied.










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1 - 11 - 2011
13 - 1 - 2012


  • Department of General and Vascular Surgery, Medical University in Poznań
  • Department of General and Vascular Surgery, Medical University in Poznań
  • Department of General and Vascular Surgery, Medical University in Poznań
  • Angiology and Vascular Surgery, University Hospital, University of Navarra, Pampeluna, Spain


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