DOI: 10.1002/hsr2.1488 ISSN:

A prospective study on the efficacy of sequential treatment of technology Lipido‐Colloid Impregnated with Silver and Technology Lipido‐Colloid Nano‐Oligosaccharide Factor in the management of venous leg ulcers

Natalie Shi Qi Wong, Audrey Hui Min Tan, Kai Siang Chan, Karine C. C. Goh, Peiting Lai, Sivakami Muthuveerappa, Mohamed Maliki Bin Mohamed Nasir, Shanying Liang, Qiantai Hong, Enming Yong, Zhiwen Joseph Lo
  • General Medicine


Background and Aims

Venous leg ulcers (VLUs) are associated with significant morbidity and poor quality of life (QOL). Compression therapy and wound dressing are the mainstay treatment options. Technology Lipido‐Colloid Impregnated with Silver (TLC‐Ag) reduces bacterial load and Technology Lipido‐Colloid Nano‐Oligosaccharide Factor (TLC‐NOSF) reduces elevated matrix metalloproteinases and improve wound healing. However, evidence is scarce on the role of sequential therapy. This study aims to evaluate if sequential treatment with TLC‐Ag and TLC‐NOSF improves VLU wound healing and QOL.


This is a prospective cohort study from May 2020 to October 2021 on patients with VLUs who received sequential therapy, consisting of 2 weeks of TLC‐Ag followed by two‐layer compression bandage (2LB) with TLC‐NOSF until complete wound healing. Participants were followed‐up with weekly dressing changes. Our primary outcomes were wound area reduction (WAR) and Pressure Ulcer Scale of Healing (PUSH) score. Our secondary outcomes were QOL measures.


There were 28 patients with 57.1% males (n = 16) with a mean age of 65.3 years. Mean duration of VLU was 13.9 ± 11.7 weeks before the initiation of sequential therapy. Mean baseline wound area was 8.44 cm2. Median time to wound healing was 10 weeks. 57.1% of patients achieved complete wound closure at 3 months. There was significant WAR after 1 month (mean area 8.44–5.81 cm2, 31.2% decrease) and after 3 months (mean area 8.44–2.53 cm2, 70.0% decrease). Mean monthly WAR was 28.9%. PUSH score also decreased at 1 month (16.5% decrease, p < 0.001) and 3 months (63.3% decrease, p < 0.001) marks following the sequential therapy. EuroQol Visual Analog Scale (EQ‐VAS) improved following sequential therapy (baseline: 69.0 ± 15.0, week 13: 80.2 ± 13.2, p < 0.001).


Sequential therapy with TLC‐Ag followed by TLC‐NOSF and 2LB is feasible, with good wound healing and improvement in QOL of patients with VLUs.

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