静脉造影和超声联合引导射频闭合治疗下肢静脉曲张

目的: 探讨联合造影和超声引导下的下肢静脉曲张射频闭合治疗技术的细节和近期效果。方法: 回顾性分析37例下肢静脉曲张患者于造影和超声联合引导下采用Olympus Celon RFiTT^®行射频闭合治疗的临床资料、技术细节及近期治疗效果。结果: 37例患者均在局部麻醉下顺利完成手术,手术成功率100%。术中辐射剂量 1.78~10.12 mGy(平均6.56 mGy),照射时间61~448 s(平均161 s)。术后3个月随访,37例患者的症状均减轻,复查超声大隐静脉射频治疗段闭合率100%,无皮肤灼伤、皮下淤血、深静脉血栓形成等并发症。结论: 应用Olympus Celon RFiTT^®射频治疗系统,采用两次定点射频+一次往复运动射频治疗方法的近期效果较好。联合静脉造影和超声引导下的大隐静脉射频治疗不但创伤小、恢复快,还具有定位准确、效果确切、避免并发症等优点。

Radiofrequency obliteration of varicose veins of lower extremity guided by combined venography and ultrasonography

Objective: To explore the technical details and short-term effects of radiofrequency obliteration of varicose veins of lower extremities guided by combined venography and ultrasound. Methods: Thirty-seven patients with varicose veins of lower extremities were treated with radiofrequency obliteration using Olympus Celon RFiTT^® under combined guidance of venography and ultrasound. The indications included varicose veins of lower extremities and reflux of the great saphenous vein confirmed by ultrasound. The contraindications included deep vein thrombosis, cardiac pacemaker, severe cardio- and cerebrovascular diseases or coagulation disorders. Under ultrasound guidance, the saphenous vein around knee level was punctured using a 21G needle, and a 7F sheath was introduced. Through the sheath a venography was made, and an Olympus Celon ProCurve radiofrequency catheter was inserted and advanced to the great saphenous vein under road map, and the catheter tip was positioned at the point 2 cm below the sapheno-femoral junction. The swelling anesthesia was made under ultrasound guidance. Then the radiofrequency obliteration was performed with pressing of the treatment section. The venography was repeated to ensure optimal outcomes. If necessary the radiofrequency obliteration could be repeated once to twice. After that the superficial varicose veins were stripping by small incisions under local anesthesia. After operation, medical decompression stocking was utilized immediately and sustained for three months. The clinical data, intraoperative radiation dose, exposure time and short-term effects were retrospectively analyzed. Results: After the operation, all the patients walked out of the operating room by themselves. The success rate of operation was 100%. The intraoperative radiation dose was 1.78-10.12 mGy (mean 6.56 mGy), and the exposure time was 61-448 s (mean 161 s). By 3 months follow-up, the symptoms were alleviated in all the 37 patients, and the occlusion rate was 100%. No complications such as skin burns, ecchymosis and deep venous thrombosis were found. Conclusion: The short-term effects of radiofrequency obliteration using Olympus Celon RFiTT^® system in a manner of twice fixed point followed by once reciprocating radiofrequency were satisfactory. Radiofrequency obliteration of great saphenous veins guided by venography and ultrasound has not only the advantages of minimal trauma and rapid recovery, but also the advantages of accurate location, exact effect and avoidance of complications.