Evidence map›Paper›PMID 35855676›Full record

SynthesisInternational wound journal2023

The efficacy of low-frequency ultrasound as an added treatment for chronic wounds: A meta-analysis.

Haiting Chen, Zhenxing Yu, Ning Liu, Jianbin Huang, Xia Liang, Xiaoling Liang, Meixia Liang, Minghui Li, Jiang Ni

RetractedOpen access · goldAbstract readMeta-AnalysisSystematic ReviewRetracted Publication
In one paragraph

Synthesis in International wound journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 8 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 3 pooled it
3.1field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 3 syntheses or guidelines pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Harnessing Ultrasonic Technologies to TreatMolecules (Basel, Switzerland) · 2025
    Review
  6. Article
  7. Plant-Derived Exosome-Like Nanovesicles in Chronic Wound Healing.International journal of nanomedicine · 2024
    Review
  8. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

Haiting ChenDepartment of Emergency Medical Center, Affiliated Hospital of Guangdong Medical University, Guangdong, China.
Zhenxing YuDepartment of Pulmonary and Critical Care Medicine, Wuhan Jinyintan Hospital, Tongji Medical College of Huazhong University of Science and Technology; Hubei Clinical Research Center for Infectious Diseases; Wuhan Research Center for Communicable Disease Diagnosis and Treatment, Chinese Academy of Medical Sciences; Joint Laboratory of Infectious Diseases and Health, Wuhan Institute of Virology and Wuhan Jinyintan Hospital, Chinese Academy of Sciences, Hubei, China.
Ning LiuDepartment of Ultrasonic Imaging, the Fifth Hospital of Wuhan, Hubei, China.
Jianbin HuangDepartment of Ultrasonic Imaging, the Fifth Hospital of Wuhan, Hubei, China.
Xia LiangDepartment of Nursing Department, Affiliated Hospital of Guangdong Medical University, Guangdong, China.
Xiaoling LiangDepartment of Nursing Department, Affiliated Hospital of Guangdong Medical University, Guangdong, China.
Meixia LiangDepartment of Gastrointestinal Surgery, Affiliated Hospital of Guangdong Medical University, Guangdong, China.
Minghui LiDepartment of Orthopaedics, the Fifth Hospital of Wuhan, Hubei, China.
Jiang NiDepartment of Pharmacy, the Fifth Hospital of Wuhan, Hubei, China.ORCID https://orcid.org/0000-0003-2946-8451
Guangdong Medical College · CNWuhan University · CNAcademy of Medical Sciences · GB

Funding

Clinical Research Project of Affiliated Hospital of Guangdong Medical University LCYJ2019B010Clinical Research Project of Affiliated Hospital of Guangdong Medical University LCYJ2021B004
6 · The paper itself

Abstract

We performed a meta-analysis to evaluate the effect of low-frequency ultrasound as an added treatment for chronic wounds. A systematic literature search up to May 2022 was performed and 838 subjects with chronic wounds at the baseline of the studies; 412 of them were using the low-frequency ultrasound (225 low-frequency high-intensity contact ultrasound for diabetic foot wound ulcers, and 187 low-frequency low-intensity non-contact ultrasound for a venous leg wound ulcers), and 426 were using standard care (233 sharp debridements for diabetic foot wound ulcers and 193 sham treatments for venous leg wound ulcers). Odds ratio (OR), and mean difference (MD) with 95% confidence intervals (CIs) were calculated to assess the effect of low-frequency ultrasound as an added treatment for chronic wounds using the dichotomous, and contentious methods with a random or fixed-effect model. The low-frequency high-intensity contact ultrasound for diabetic foot wound ulcers had significantly lower non-healed diabetic foot wound ulcers at ≥3 months (OR, 0.37; 95% CI, 0.24-0.56, P < .001), a higher percentage of diabetic foot wound ulcers area reduction (MD, 17.18; 95% CI, 6.62-27.85, P = .002) compared with sharp debridement for diabetic foot wound ulcers. The low-frequency low-intensity non-contact ultrasound for a venous leg wound ulcers had a significantly lower non-healed venous leg wound ulcers at ≥3 months (OR, 0.31; 95% CI, 0.15-0.62, P = .001), and higher percentage venous leg wound ulcers area reduction (MD, 18.96; 95% CI, 2.36-35.57, P = .03) compared with sham treatments for a venous leg wound ulcers. The low-frequency ultrasound as an added treatment for diabetic foot wound ulcers and venous leg wound ulcers had significantly lower non-healed chronic wound ulcers at ≥3 months, a higher percentage of chronic wound ulcers area reduction compared with standard care. The analysis of outcomes should be with caution because of the low sample size of all the 17 studies in the meta-analysis and a low number of studies in certain comparisons.

Indexed as

Diabetic FootVaricose UlcerHumansUlcerUltrasonographyWound Healingchronic woundlow-frequency ultrasoundnon-healed diabetic foot wound ulcers at ≥3 monthsnon-healed venous leg wound ulcers at ≥3 monthspercentage of diabetic foot wound ulcers area reduction

Identifiers

PMID35855676
PMCPMC9885464
OpenAlexW4285793698

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.