Lake Washington Vascular, Bellevue, Wash.
Englewood Hospital and Medical Center, Englewood, NJ.
J Vasc Surg Venous Lymphat Disord. 2020 Sep;8(5):805-813. doi: 10.1016/j.jvsv.2020.01.014. Epub 2020 Mar 21.
Treatment of pathologic perforator veins (PPVs) can shorten time to healing and reduce recurrence of ulcers in patients with advanced venous disease. Because of limited clinical evidence and device options, widespread adoption of PPV treatment is controversial. The objective of this study was to evaluate the safety and efficacy of endovenous laser therapy using a 400-μm optical fiber to treat PPVs.
This study was a single-arm, prospective, seven-center, nonblinded clinical study examining patients with advanced skin changes or healed or active ulceration (Clinical, Etiology, Anatomy, and Pathophysiology clinical class C4b, C5, and C6). Patients received treatment with a 1470-nm laser. Procedural technical success and 10-day primary closure were evaluated. All device-related adverse events were reported. Follow-up of patients was continued for 12 months after initial ablation.
The primary PPV closure (at 10-day visit) rate was 76.9% (95% confidence interval, 70.3%-82.4%). Successful primary closure rates of 75.7%, 70.3%, 62.1%, 68.8%, and 71.3% of PPVs were achieved at 1 month, 3 months, 6 months, 9 months, and 12 months, respectively. Statistically significant improvements (P < .05) were seen in patients' quality of life at 1 month, 3 months, 6 months, 9 months, and 12 months compared with screening. The percentage of patients with ulcers (22.9% at screening, 14.1% at 1 month, 13.7% at 3 months, 10.1% at 6 months, 12.3% at 9 months, and 11.1% at 12 months) displayed improvement during the course of the study. Tibial deep venous thrombosis and procedural pain were the only device-related adverse events observed.
Endovenous laser therapy for PPV using the 400-μm optical fiber with the 1470-nm laser yielded safe and effective outcomes with no major adverse sequelae.
病理性穿通静脉(PPV)的治疗可以缩短愈合时间,减少晚期静脉疾病患者溃疡的复发。由于临床证据有限和治疗设备选择有限,PPV 治疗的广泛采用存在争议。本研究的目的是评估使用 400μm 光纤进行静脉内激光治疗治疗 PPV 的安全性和有效性。
这是一项单臂、前瞻性、七中心、非盲临床研究,检查了有晚期皮肤改变或已愈合或活动期溃疡(临床、病因、解剖和病理生理学临床 C4b、C5 和 C6 级)的患者。患者接受 1470nm 激光治疗。评估了程序技术成功率和 10 天的一期闭合。报告了所有与设备相关的不良事件。在初始消融后继续对患者进行 12 个月的随访。
主要的 PPV 闭合(在 10 天就诊时)率为 76.9%(95%置信区间,70.3%-82.4%)。在 1 个月、3 个月、6 个月、9 个月和 12 个月时,PPV 的成功一期闭合率分别为 75.7%、70.3%、62.1%、68.8%和 71.3%。与筛查相比,患者的生活质量在 1 个月、3 个月、6 个月、9 个月和 12 个月时均有显著改善(P<.05)。在研究过程中,溃疡患者的比例(筛查时为 22.9%,1 个月时为 14.1%,3 个月时为 13.7%,6 个月时为 10.1%,9 个月时为 12.3%,12 个月时为 11.1%)有所改善。胫后深静脉血栓形成和手术疼痛是唯一观察到的与设备相关的不良事件。
使用 1470nm 激光的 400μm 光纤进行静脉内激光治疗 PPV 可获得安全有效的结果,无重大不良后果。