Foam sclerotherapy is one of the major therapies for varicose veins in lower limbs. It is important to know the influence factor of foam stability which is beneficial to curative effect. The present experiment explored influence of 9 kinds of driving speed on foam stability when using the method of Tessari. Syringes of 5 mL were chosen to do this experiment which was carried out at the liquid gas ratio of 1:4 and the environment temperature of 20℃. A home-made automatic sclerosing foam preparation equipment was used to prepare the foam. A camera recorded the entire process of foam decay. And foam stability indexes which includes drainage time, half-life, foam half-life volume and the drainage rate curve, were analyzed. The results showed that when driving speed ranged from 100 mm/s to 275 mm/s, foam drainage time and the half-life showed a trend of rising. When the driving velocity was greater than 275 mm/s, the foam drainage time and half-life time reduced a little. The largest drainage time and the half-life differences were 340.0% and 118.8% compared to their minimum value. Meanwhile the pressure increased with the increase of driving speed, so that the solubility of carbon dioxide increased and the foam half-life volume decreased with the increase of the driving speed. It can be concluded that when using the method of Tessari to prepare sclerosing foam, driving speed has a significant effect on its stability. With driving speed increasing, foam decay mechanism changes from gas diffusion to liquid drainage as the main function, so the foam stability increased at first and then decreased later. The foam is relatively more stable at the speed of 275 mm/s, which could be considered as the best driving speed.
ObjectiveTo compare the effectiveness of radiofrequency ablation (RFA) combined with transilluminated powered phlebectomy (TIPP) vs. high ligation and stripping (HLS) combined with TIPP in patients with varicose veins of lower limbs.MethodsA retrospective analysis was made on the clinical data of 190 patients (206 limbs) of varicose veins of lower limbs who underwent surgical treatment in our hospital from December 2017 to July 2018, of them 88 patients (96 limbs) in RFA combined with TIPP group and other 102 patients (110 limbs) in HLS combined with TIPP group. The treatment effectiveness and quality of life was assessed with venous clinical severity score (VCSS) and chronic venous insufficiency questionnaire (CIVIQ-14) in three months and one year after surgery. Doppler ultrasound was used to evaluate the closure of great saphenous vein.ResultsBaseline characteristics were similar between the two groups (P>0.05). The RFA combined with TIPP group was better than the HLS combined with TIPP group in operation time, intraoperative bleeding, hospital stay time, postoperative bed time, resumption time of activities, as well as incidences of skin induration and limb numb (P<0.05). Occlusion rates of great saphenous vein in 3 months was 93.8% (90/96) in the RFA combined with TIPP group and 97.3% (107/110) in the HLS combined with TIPP group, and in one year was 91.7% (88/96) and 97.3% (107/110) respectively, there was no significant difference between the two groups at the same time point (P>0.05). The VCSS scores and CIVIQ-14 scores also improved significantly in two groups in 3 months and 1 year follow up (P<0.05), but there was no significant differences between the two groups at the same time point (P>0.05).ConclusionsRFA combined with TIPP is an effective method for the treatment of varicose veins of lower limbs. Compared with HLS, RFA has the same good effectiveness and quality of life, but it has the advantages of short operation time, rapid postoperative recovery, and less postoperative complications.
ObjectiveTo explore the feasibility of radiofrequency ablation of great saphenous varicose veins in ambulatory surgery.MethodsPatients who underwent radiofrequency ablation of great saphenous varicose veins between May 2018 and June 2019 in General Hospital of Northen Theater Command were prospectively selected. According to their choices of treatment modes, patients were divided into two groups, day surgery group and routine inpatient group. The preoperative waiting time, length of hospital stay, and hospitalization expenses of the two groups were compared. The postoperative pain, tenderness, and complications were followed up on the first day (the next day after operation), the third day, and the fourteenth day after operation, and the time of return to normal life and work and patients’ satisfaction in two groups were recorded.ResultsA total of 95 patients were enrolled, including 52 in the day surgery group and 43 in the routine inpatient group. There was no significantly difference in age, gender, heart rate, mean arterial pressure, or operation time between the two groups (P>0.05). Compared with the routine inpatient group, the day surgery group had shorter preoperative waiting time, shorter length of hospital stay, and lower hospitalization expenses (P<0.05). In the day surgery group, the time of return to normal life and the time of return to work were shorter and patients’ satisfaction was significantly higher than those in the routine inpatient group (P<0.05). There was no significant difference in pain, tenderness, or paresthesia scores between the two groups after surgery according to the follow-up assessment (P>0.05); the pain, tenderness, and paresthesia scores on the first day and the third day were significantly different from those on the fourteenth day after surgery, indicating that the longer the postoperative time of the two groups, the less pain, tenderness, and paresthesia scores were.ConclusionRadiofrequency ablation of great saphenous varicose veins in ambulatory surgery has a short hospital stay, low medical cost, high patient satisfaction, and can ensure the safety of treatment at the same time, which is worthy of clinical promotion