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Histology of a varicose great saphenous vein treated with RFITT
U. Th. Zierau (1), A. Popp (2), W. Lahl (1), M. Sell (2)
(1) Praxisklinik für Gefäßerkrankungen SAPHENION, Berlin; (2) Gemeinschaftspraxis für Pathologie, Berlin
Summary
Endovenous bipolar RFITT (RadioFrequency Induced ThermoTherapy) is a new approach for the treatment of varicose veins. RFITT provokes a thermal effect on the vein wall due to bipolar energy delivery. An alternating high frequency current creates heat in the vessel enabling a controlled tissue shrinkage. Results: Histological examination showed circular dissection of the intima with intramural bleedings and beginning condensation of fibrin thrombus because of the destroyment of erythrocyte cells. Perforation or carbonisation of the vein wall was not be detected. Conclusion: The histological and duplex sonographic pictures of veins after RFITT are comparable to those seen after the application of other endovenous procedures.Keywords
Varicose veins, radiofrequency, endovenous surgical procedures, RFITT, histology of vein wall, dissection of vein wall, intramural bleeding, destruction of erythrocytes
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