Nerve Injuries after Endovenous Thermal Ablation for Primary Varicose Veins: A Trial of New Preventive Protocol

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  • 下肢静脈瘤に対する血管内焼灼術後の神経障害—新しいプロトコールによる発生回避の試み—

Abstract

<p>We developed a new endovenous laser ablation (EVLA) protocol to prevent nerve injuries after varicose vein surgery. The technique and clinical results of 1042 incompetent great saphenous veins (GSV) cases are presented. A slim-type radial 2-ring fiber with a diameter of 1.27 mm was used, connected to a diode laser equipment with a wavelength of 1470 nm. The EVLA system treated the incompetent GSV and tributary varicose veins. The above-knee GSV was ablated at 7 W (LEED 50–70 J/cm). If the below-knee GSV had reflux, it was ablated at 5 W (LEED 20–25 J/cm). Tributary varices were treated at 5 W (LEED 30 J/cm). All veins were accessed by puncturing with a 16 G venule needle. Stab avulsion phlebectomy was not performed. Saphenous nerve injury was not observed in any patients. Our new EVLA protocol was useful with less incidence of nerve injuries.</p>

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