Test Article A：Hemodynamic Evaluation and Clinical Outcomes of CHIVA Strategy in the Treatment of Lower Limb Varicose Veins: A Pilot Study

Abstract

Background: Chronic venous insufficiency (CVI) and varicose veins are common vascular disorders that significantly impact patient quality of life. The CHIVA (Conservative Hemodynamic Cure for Venous Insufficiency in Ambulatory Care) strategy focuses on preserving venous drainage while correcting pathological reflux.

Objective: This study aims to evaluate the hemodynamic effectiveness and short-term clinical outcomes of the CHIVA approach in patients with lower limb varicose veins.

Methods: A prospective observational study was conducted on 20 patients diagnosed with primary varicose veins. All patients underwent duplex ultrasound mapping before treatment. CHIVA-based interventions were performed to selectively interrupt reflux pathways while preserving venous drainage. Clinical and hemodynamic outcomes were assessed at 1 and 3 months post-procedure.

Results: Significant improvement in venous hemodynamics was observed in 85% of patients, with a reduction in reflux duration and venous diameter. Clinical symptoms, including heaviness and pain, improved in 90% of cases. No major complications were reported.

Conclusion: The CHIVA strategy demonstrates promising short-term outcomes with preservation of venous function. Further large-scale studies are warranted to validate long-term efficacy.