Efficacy and tolerability of an ulcer compression stocking for therapy of chronic venous ulcer compared with a below-knee compression bandage: results from a prospective, randomized, multicentre trial

Abstract

Objective: To investigate the possibility of improving healing rates in ulcus cruris venosum by using an ulcer compression stocking (U-Stocking) (Venotrain ulcertec) as compared to compression bandages. RESEARCH DESIGN AND SETTING: Prospective, multicentre, open-labelled, randomized, active-controlled study with blinded assessment of the primary endpoint. Sixteen phlebology outpatient clinics in Germany or the Netherlands or German medical practices specialized in phlebology.

Patients and methods: 134 patients with venous leg ulcers entered the study. Among others, patients with infected ulcer or obesity were excluded. 121 patients were eligible for primary efficacy analyses. U-Stocking or bandages applied for at least eight hours per day and for up to 12 weeks. The primary endpoint was the healing rate after 12 weeks as assessed by planimetric measures. The secondary outcome variables were time to healing, changes in ulcer size (planimetry), experience of use and patient compliance.

Main outcome measures: Therapy with the U-Stocking produced a significantly higher rate of complete healing of 47.5% (29/61) versus 31.7% (19/60) with bandages, 1-sided p = 0.0129 [CI: 95% for differences: 4.3% to 28.5%]. Mean time to healing was 46 days in both groups. Time required for application of the U-Stocking was a mean of 5.4 min (SD 5.4) versus 8.5 min (SD 6.5) for bandages, p = 0.0001. Around three patients in each treatment group were affected by serious adverse events. All treatment-related adverse events are known for compression therapy.

Conclusions: The U-Stocking was superior to bandages in compression therapy for venous ulcer. This is of significance to new treatment standards as well as to future studies of longer term therapy (> 12 weeks) for unhealed ulcers or prevention of recurrence.