EFFECT OF PULSED ELECTROMAGNETIC FIELDS ON HEALING OF INFECTED BURN WOUND IN GUINEA PIGS

Abstract

Background: electromagnetic fields are used for promotion of. healing in various conditions such as bone, cartilage, ligament, and nerve injuries. However, still there are controversies about the use of these fields fot promoting skin burn wound healing either in infected or non infected burn wounds. Objective: the aim of this work was to investigate the effect of electromagnetic fields in the form of Square Amplitude Modulated Waves (QAMW) on he healing of infected or non infected burn wounds . . . m gumea pigs Methods: Fifty males guinea pigs were used in this,study. Partial skin thickness burn wound of approximately 4 cm2 was induced _on the hind limb of each animal. The animals were divided into five equal groups (n=l 0) namely three control group (A, B and C) and two study groups (D and E). The wounds of group A&D were infected by psuedomonas aeuroginosa bacteria & wounds of group C were infected by bacteria treated by 0.5 Hz QAMW for a period of one hour. The animals of .the 'treatment of group (D&E) received 0.5Hz, QAMW for a period of one hour daily for 15 days. Wound healing was evaluated by measuring the wound surface area (WSA) every 5 days and the survival percentage of of animals of each group was calculated. Results: 'results showed that the WSA of the treatment groups (D&E) were significantly less than that of the control groups and of significantly high survival percentage than that of the control groups. Conclusion: one can conclude that EMF in form of 0.5 Hz QAMW is an effective: method in enhancing healing in either infected or non infected burn wounds.