Objective: This study is a single-center prospective observational research that recorded patients' pain scores at four time points during surgery (puncture and catheter insertion, swelling fluid injection, microwave generator operation, and end of surgery). It analyzed the correlation between pain during microwave ablation treatment for great saphenous vein varicosities and factors such as age, gender, body mass index, volume of swelling fluid used, and others, in order to summarize and improve surgical details to reduce patients' intraoperative pain.
Age≥ 18 years old, ≤ 90 years old;
the patient's life expectancy is greater than 12 months;
The clinical diagnosis is primary VVs, CEAP classification C2-C6, and the GSV segment needs to be treated, including pain, burning sensation, heaviness, fatigue, itchy skin, night cramps and other clinical symptoms;
Doppler ultrasound confirmed that the diameter of GSV was greater than 3mm and less than 12mm when standing;
GSV thrombosis, or combined with deep vein thrombosis, or previous history of deep vein thrombosis and pulmonary embolism;
patients with recurrence after prior VVs-related surgery (C2r);
the GSV trunk is severely distorted, and it is expected that the catheter will not be able to pass;
Severe ischemia of the lower limbs, Ankle brachial pressure index (ABPI) < 0.8;