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A randomized controlled noninferiority trial comparing radiofrequency with stripping and conservative hemodynamic cure for venous insufficiency technique for insufficiency of the great saphenous vein.
J Vasc Surg Venous Lymphat Disord. 2021 01; 9(1):101-112.JV

Abstract

OBJECTIVE

The quality of available evidence regarding new minimally invasive techniques to abolish great saphenous vein reflux is moderate. The present study assessed whether radiofrequency ablation (RFA) was noninferior to high ligation and stripping (HLS) and conservative hemodynamic cure for venous insufficiency (CHIVA) for clinical and ultrasound recurrence at 2 years in patients with primary varicose veins (VVs) due to great saphenous vein (GSV) insufficiency.

METHODS

We performed a randomized, single-center, open-label, controlled, noninferiority trial to compare RFA and 2 surgical techniques for the treatment of primary VVs due to GSV insufficiency. The noninferiority margin was set at 15% for absolute differences. Patients aged >18 years with primary VVs and GSV incompetence, with or without clinical symptoms, C2 to C6 CEAP (Clinical, Etiologic, Anatomic, Pathophysiologic) clinical class, and GSV diameter >4 mm were randomized with a 1:1:1 ratio to RFA, HLS, or CHIVA. The rate of clinical recurrence at 24 months was the primary endpoint and was analyzed using a delta noninferiority margin of 15%. Ultrasound recurrence, safety, and quality of life were secondary endpoints.

RESULTS

From December 2012 to June 2015, 225 limbs had been randomized to RFA, HLS, or CHIVA (n = 74, n = 75, and n = 76). Clinical follow-up and Doppler ultrasound examinations were performed at 1 week and 1, 6, 12, and 24 months postoperatively. No differences in postoperative complications or pain were observed among the three groups. RFA was noninferior to HLS and CHIVA for clinical recurrence at 24 months, with an estimated difference in recurrence of 3% (95% confidence interval [CI], -4.8% to 10.7%; noninferiority P = .002) and -7% (95% CI, -17% to 3%; P < .001), respectively. For ultrasound recurrence, RFA was noninferior to CHIVA, with an estimated difference of -34% (95% CI, -47% to -20%; noninferiority P < .001) at 24 months. However, noninferiority could not be demonstrated compared with HLS (5.9%; 95% CI, -4.1 to 15.9; P = .073). No differences were found in quality of life among the three groups.

CONCLUSIONS

RFA was shown to be noninferior in terms of clinical recurrence to HLS and CHIVA in the treatment of VVs due to GSV insufficiency.

Authors+Show Affiliations

Department of Vascular Surgery, Parc Taulí Hospital Universitari, Sabadell, Barcelona, Spain. Electronic address: egonzalez@tauli.cat.Department of Vascular Surgery, Parc Taulí Hospital Universitari, Sabadell, Barcelona, Spain.Department of Pharmacology, Therapeutics, and Toxicology, Universitat Autònoma de Barcelona, Barcelona, Spain.Department of General Surgery, Jackson Memorial Hospital, University of Miami, Miami, Fla.Department of Vascular Surgery, Parc Taulí Hospital Universitari, Sabadell, Barcelona, Spain.Biostatistics Unit, Universitat Autònoma de Barcelona, Barcelona, Spain; Medical Statistics Core Facility, Institut Investigacions Biomèdiques Audgust Pi I Sunyer (IDIBAPS) and Hospital Clinic, Barcelona, Spain.Department of General Surgery, Parc Taulí Hospital Universitari, Sabadell, Barcelona, Spain.Department of Vascular Surgery, Parc Taulí Hospital Universitari, Sabadell, Barcelona, Spain.

Pub Type(s)

Comparative Study
Equivalence Trial
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

32353592

Citation

González Cañas, Elena, et al. "A Randomized Controlled Noninferiority Trial Comparing Radiofrequency With Stripping and Conservative Hemodynamic Cure for Venous Insufficiency Technique for Insufficiency of the Great Saphenous Vein." Journal of Vascular Surgery. Venous and Lymphatic Disorders, vol. 9, no. 1, 2021, pp. 101-112.
González Cañas E, Florit López S, Vilagut RV, et al. A randomized controlled noninferiority trial comparing radiofrequency with stripping and conservative hemodynamic cure for venous insufficiency technique for insufficiency of the great saphenous vein. J Vasc Surg Venous Lymphat Disord. 2021;9(1):101-112.
González Cañas, E., Florit López, S., Vilagut, R. V., Guevara-Noriega, K. A., Santos Espí, M., Rios, J., Soto, S. N., & Giménez Gaibar, A. (2021). A randomized controlled noninferiority trial comparing radiofrequency with stripping and conservative hemodynamic cure for venous insufficiency technique for insufficiency of the great saphenous vein. Journal of Vascular Surgery. Venous and Lymphatic Disorders, 9(1), 101-112. https://doi.org/10.1016/j.jvsv.2020.04.019
González Cañas E, et al. A Randomized Controlled Noninferiority Trial Comparing Radiofrequency With Stripping and Conservative Hemodynamic Cure for Venous Insufficiency Technique for Insufficiency of the Great Saphenous Vein. J Vasc Surg Venous Lymphat Disord. 2021;9(1):101-112. PubMed PMID: 32353592.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A randomized controlled noninferiority trial comparing radiofrequency with stripping and conservative hemodynamic cure for venous insufficiency technique for insufficiency of the great saphenous vein. AU - González Cañas,Elena, AU - Florit López,Salvador, AU - Vilagut,Roser Vives, AU - Guevara-Noriega,Kerbi Alejandro, AU - Santos Espí,Marta, AU - Rios,José, AU - Soto,Salvador Navarro, AU - Giménez Gaibar,Antonio, Y1 - 2020/04/28/ PY - 2019/08/01/received PY - 2020/04/03/accepted PY - 2020/5/1/pubmed PY - 2021/4/29/medline PY - 2020/5/1/entrez KW - CHIVA KW - Catheter ablation KW - Randomized controlled trial KW - Stripping KW - Varicose veins SP - 101 EP - 112 JF - Journal of vascular surgery. Venous and lymphatic disorders JO - J Vasc Surg Venous Lymphat Disord VL - 9 IS - 1 N2 - OBJECTIVE: The quality of available evidence regarding new minimally invasive techniques to abolish great saphenous vein reflux is moderate. The present study assessed whether radiofrequency ablation (RFA) was noninferior to high ligation and stripping (HLS) and conservative hemodynamic cure for venous insufficiency (CHIVA) for clinical and ultrasound recurrence at 2 years in patients with primary varicose veins (VVs) due to great saphenous vein (GSV) insufficiency. METHODS: We performed a randomized, single-center, open-label, controlled, noninferiority trial to compare RFA and 2 surgical techniques for the treatment of primary VVs due to GSV insufficiency. The noninferiority margin was set at 15% for absolute differences. Patients aged >18 years with primary VVs and GSV incompetence, with or without clinical symptoms, C2 to C6 CEAP (Clinical, Etiologic, Anatomic, Pathophysiologic) clinical class, and GSV diameter >4 mm were randomized with a 1:1:1 ratio to RFA, HLS, or CHIVA. The rate of clinical recurrence at 24 months was the primary endpoint and was analyzed using a delta noninferiority margin of 15%. Ultrasound recurrence, safety, and quality of life were secondary endpoints. RESULTS: From December 2012 to June 2015, 225 limbs had been randomized to RFA, HLS, or CHIVA (n = 74, n = 75, and n = 76). Clinical follow-up and Doppler ultrasound examinations were performed at 1 week and 1, 6, 12, and 24 months postoperatively. No differences in postoperative complications or pain were observed among the three groups. RFA was noninferior to HLS and CHIVA for clinical recurrence at 24 months, with an estimated difference in recurrence of 3% (95% confidence interval [CI], -4.8% to 10.7%; noninferiority P = .002) and -7% (95% CI, -17% to 3%; P < .001), respectively. For ultrasound recurrence, RFA was noninferior to CHIVA, with an estimated difference of -34% (95% CI, -47% to -20%; noninferiority P < .001) at 24 months. However, noninferiority could not be demonstrated compared with HLS (5.9%; 95% CI, -4.1 to 15.9; P = .073). No differences were found in quality of life among the three groups. CONCLUSIONS: RFA was shown to be noninferior in terms of clinical recurrence to HLS and CHIVA in the treatment of VVs due to GSV insufficiency. SN - 2213-3348 UR - https://www.unboundmedicine.com/medline/citation/32353592/A_randomized_controlled_noninferiority_trial_comparing_radiofrequency_with_stripping_and_conservative_hemodynamic_cure_for_venous_insufficiency_technique_for_insufficiency_of_the_great_saphenous_vein_ DB - PRIME DP - Unbound Medicine ER -