Pulsed electromagnetic field therapy promotes healing and microcirculation of chronic diabetic foot ulcers

Rachel Lai Chu Kwan, Wing Cheung Wong, Siu Leung Yip, Ka Lun Chan, Yongping Zheng, Lai Ying Gladys Cheing

Research output: Journal article publicationJournal articleAcademic researchpeer-review

29 Citations (Scopus)


Objective: To examine the effects of pulsed electromagnetic field (PEMF) therapy on promoting the healing and microcirculation of chronic diabetic foot ulcers. Design: A randomized, double-blind, placebo-controlled clinical trial on a homogenous subset of chronic diabetic foot ulcers. Setting: Hospital and university. Patients: Thirteen subjects (7 in the PEMF group and 6 in the control group) diagnosed with type 2 diabetes and had unsatisfactory healing of ulcer(s) in the preceding 4 weeks were recruited. Interventions: Subjects were randomly allocated to receive either active Pemf therapy (duration: 60minutes; frequency: 12 Hz; intensity: 12 Gauss) or nonactive PEMF for 14 sessions within 3 weeks. Main Outcome Measures: Assessment on wound closure, wound depth, and microcirculation were performed at the baseline, end of the treatment period, and 1-month follow-up. Main Results: By the end of the treatment period, there was an 18% decrease in wound size in the active PEMF group as compared with a 10% decrease in the control group. The PEMF group demonstrated significant cumulative increase in cutaneous capillary blood velocity (by 28%) and 14% increase in capillary diameter. In contrast, the control group showed a decrease in both capillary blood velocity and diameter. Conclusion: In this study, PEMF therapy seemed to accelerate wound healing and improve microcirculation.
Original languageEnglish
Pages (from-to)212-219
Number of pages8
JournalAdvances in Skin and Wound Care
Issue number5
Publication statusPublished - 1 Jan 2015


  • chronic wounds and microcirculation
  • diabetic foot ulcer
  • Pulsed electromagnetic field therapy

ASJC Scopus subject areas

  • Dermatology
  • Advanced and Specialised Nursing

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