Comparison of cold-quartz ultraviolet, low-energy laser, and occlusion in wound healing in a swine model

Basford, Jeffrey R.; Hallman, H. O.; Sheffield, Charles G.; Mackey, George L.

doi:10.1016/0003-9993(86)90053-5

Cited by 73 publications

(29 citation statements)

References 4 publications

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“…The trend is not as clear when clinical reports on tissue repair are examined. Rather, sufficient differences of opinion seem evident between studies showing beneficial effects and those reporting no effects whatsoever [10,[33][34][35][36][37][38][39][40][41][42][43][44][45][46].…”

Section: Introductionmentioning

confidence: 99%

ATTENUATION AND PENETRATION OF VISIBLE 632.8nm AND INVISIBLE INFRA-RED 904nm LIGHT IN SOFT TISSUES

Enwemeka

2000

LASER THERAPY

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We studied the depth of penetration and the magnitude of attenuation of 632.8nm and 904nm light in skin, muscle, tendon, and cartilagenous tissues of live anaesthetized rabbits. Tissue specimens were dissected, prepared, and their thicknesses measured. Then, each wavelength of light was applied. Simultaneously, a power meter was used to detect and measure the amount of light transmitted through each tissue. All measurements were made in the dark to minimize interference from extraneous light sources. To determine the influence of pulse rate on beam attenuation, the 632.8nm light was used at two predetermined settings of the machine; continuous mode and 100 pulses per second (pps), at an on:off ratio of 1:1. Similarly, the 904nm infra-red light was applied using two predetermined machine settings: 292 pps and 2,336 pps. Multiple regression analysis of the data obtained showed significant positive correlations between tissue thickness and light attenuation (p < .001). Student's t-tests revealed that beam attenuation was significantly affected by wavelength. Collectively, our findings warrant the conclusions that (1) The calf muscles of the New Zealand white rabbit attenuates light in direct proportion to its thickness. In this tissue, light attenuation is not significantly affected by the overlying skin, a finding which may be applicable to other muscles. (2) The depth of penetration of a 632.8nm and 904nm light is not related to the average power of the light source. The depth of penetration is the same notwithstanding the average power of the light source. (3) Compared to the 904nm wavelength, 632.8nm light is attenuated more by muscle tissue, suggesting that is is absorbed more readily than the 904nm wavelength or conversely that the 904nm wavelength penetrates more. Thus, wavelength plays a critical role in the depth of penetration of light.

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Section: Introductionmentioning

confidence: 99%

ATTENUATION AND PENETRATION OF VISIBLE 632.8nm AND INVISIBLE INFRA-RED 904nm LIGHT IN SOFT TISSUES

Enwemeka

2000

LASER THERAPY

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“…They demonstrated that even though wounds in all treatment groups showed a tendency to heal faster than exposed wounds, results for only occluded wounds were clinically significant. 72 Although the authors concluded that there was no advantage in using either laser or UV treatment, it is unfortunate that they did not assess the effect of each modality combined with occlusion, since optimum clinical conditions appear to be dependent on a moist wound surface. 73,74 It is important to note that in the same study, in 8 of 12 treated wounds and 12 of 24 untreated wounds of the UV-exposed pigs, clinically reduced hypertrophic healing on the same animal was observed, which is an indicator that UVC has systemic effects.…”

Section: 67mentioning

confidence: 99%

“…73,74 It is important to note that in the same study, in 8 of 12 treated wounds and 12 of 24 untreated wounds of the UV-exposed pigs, clinically reduced hypertrophic healing on the same animal was observed, which is an indicator that UVC has systemic effects. 72 Clinical studies. There have been a few human clinical trials on wound healing using UV therapy (Table 1).…”

Section: 67mentioning

confidence: 99%

Ultraviolet Radiation in Wound Care: Sterilization and Stimulation

Gupta

Avci

Dai

et al. 2013

Advances in Wound Care

124

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“…(1) Achieving effective pressure: This four layer bandage is an example of a multi-component elastic system and is designed to apply a sustained sub-bandage pressure of 35 -40 mmHg at the ankle for patients with an ankle circumference of 18 -25 cm in order to reverse chronic venous hypertension, this is achieved through:-Laplace's law: theoretical pressures [5]. T N 462 P C W × × = × Sub bandage pressure P is dependent on: N = Number of layers of bandage-more layers, the greater the pressure.…”

Section: Compression (Bandaging) Techniquementioning

confidence: 99%

“…Yet, some reports indicated that the lasers with < 500 milliwatts (mW) average power, promote the repair processes of skin, ligaments, tendons, bone, and cartilage in experimental animals, as well as wounds and ulcers of a wide range of etiologies in humans [5].…”

Section: Introductionmentioning

confidence: 99%

Low-Level Laser Therapy versus Four Layers Compression Technique in the Treatment of Venous Ulcers

El-Laboudy¹,

Samir²,

Tawfik³

et al. 2014

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Objective: The aim of the study is to evaluate the effect of low-level laser therapy in comparison to compression bandage therapy in the treatment of venous ulcers. Subjects & Methods: This study was carried out in the period from March 2013 to March 2014. The study included 40 adult patients with a diagnosis of venous ulcer classified as C6 according to the clinical classification of CEAP classification. The patients were divided into 2 groups: the first one included 20 patients treated by low-level laser therapy at the Rheumatology and Rehabilitation department, and the second group included 20 patients in whom we use four layers compression bandaging at the vascular surgery department. Results: 32 ulcers were treated in group I and 35 ulcers were treated in group II. The patients of group I were 7 (35%) females and 13 (65%) males, their age range were (24 -56) years. The patients of group II were 11 (55%) males and 9 (45%) females; their age ranges were (32 -50) years. Measurements of the ulcers size by (cm 2 ) were taken at the beginning of therapy, at 1 month, at 2 months and at 3 months later on. The calculation of the area of the ulcer was done by using the graph papers to document the ulcer's perpendicular linear dimensions. According to the size of the ulcer, some ulcers heal within 1 month (15.6%) ulcers in group I, and (28.5%) in group II. Some ulcers heal within 2 months (28%) in group I, and (37%) in group II. The remaining ulcers heal within 3 months or more which are (56%) ulcers in group I, and (34.2%) ulcers in group II. The recurrence rate of chronic venous leg ulcer in compression bandage technique used in group II was the least one as the total number of recurrent cases were 5 (25%), followed by laser therapy used in group I. Conclusion: There was no significant efficacy of the low-level laser therapy over the four layers compression technique in the management of chronic venous ulcers.

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Comparison of cold-quartz ultraviolet, low-energy laser, and occlusion in wound healing in a swine model

Cited by 73 publications

References 4 publications

ATTENUATION AND PENETRATION OF VISIBLE 632.8nm AND INVISIBLE INFRA-RED 904nm LIGHT IN SOFT TISSUES

ATTENUATION AND PENETRATION OF VISIBLE 632.8nm AND INVISIBLE INFRA-RED 904nm LIGHT IN SOFT TISSUES

Ultraviolet Radiation in Wound Care: Sterilization and Stimulation

Low-Level Laser Therapy versus Four Layers Compression Technique in the Treatment of Venous Ulcers

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