alexa Combined Effect of Ultrasound and Laser Therapy (LLLT) for the Treatment of Pressure Ulcer in a Patient with Spinal Cord Injury | OMICS International
ISSN: 2573-0312
Journal of Physiotherapy & Physical Rehabilitation
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Combined Effect of Ultrasound and Laser Therapy (LLLT) for the Treatment of Pressure Ulcer in a Patient with Spinal Cord Injury

Suvarna Ganvir*, Mayuri Agrawal and Maheshwari Harishchandre

PDVVPF’s College of Physiotherapy, Ahmednagar, Maharashtra, India

Corresponding Author:
Suvarna Ganvir
PDVVPF’s College of Physiotherapy
Ahmednagar, Maharashtra, India
Tel: 912412778042
E-mail: [email protected]

Received Date: June 15, 2016; Accepted Date: July 11, 2016; Published Date: July 18, 2016

Citation: Ganvir S, Agrawal M, Harishchandre M (2016) Combined Effect of Ultrasound and Laser Therapy (LLLT) for the Treatment of Pressure Ulcer in a Patient with Spinal Cord Injury. Physiother Rehabil 1:114. doi:10.4172/2573-0312.1000114

Copyright: © 2016 Ganvir S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Abstract

Pressure ulcer (PU) is a common complication after SCI which Physiotherapists needs to treat on an urgent basis. This case study reports the combined effect of LASER therapy and ultrasound for the extensive PU in a young patient which resulted in complete recovery within 12 weeks. PU was around 24 cm2 in length and breadth and 1.9 cm deep. Patient was treated with LLLT and Ultrasound for 12 weeks with required dosages. Assessment was done with the help of PUSH scale. After 12 weeks of treatment there was complete closure of PU.

Keywords

Pressure ulcer; Laser; Ultrasound

Introduction

Pressure ulcer is a common complication after spinal cord injury and is one of the leading cause of mortality. Prevalence of pressure ulcer is reported to be 4.9% in a study conducted at university hospital in India [1].

There are many precipitating factors for ulcer formation. Intrinsic factors include sensory, autonomic, and motor impairment; obesity; malnourishment; and diabetes. Extrinsic factors include unrelieved pressure, friction, direct trauma, and inadequate skin hygiene [2].

Numerous physical therapy approaches to wound healing are described, including ultrasound (US), ultraviolet radiation. There is sparse reference in recent literature to physical therapists' use of UV for wound healing. Existing literature concentrates on broad-spectrum UV light sources, predominantly A PA) and B (UVB) wavelength [3]. With electrical stimulation as a treatment modality it has been postulated that electrical current attracts fibroblasts and macrophages, improved wound microcirculation by directly stimulating local cutaneous nerves, and orient and affect mesenchymal stem cell migration. But the application may pose certain challenges in terms increased chances of infection [4]. High voltage pulse current is also reported in the treatment of pressure ulcer but the benefit is mainly limited to pain relief rather than wound healing [5]. Physical therapists currently use US to treat wounds at a spatial average-temporal average (SATA) intensity of 0.1 to 0.5 w/cm2 [6]. Ultrasound dosages that clinically enhance wound healing have also been shown to produce cellular ultrastructural changes that are critical to normal healing [7]. Though there are conflicting evidences regarding the effects of US, it still is a promising electrotherapy modality for tissue healing. Hogan, et al., claimed that pulsed ultrasound can promote circulation independently of a heating effect. He also found that US promotes angiogenesis. This effect may help in case of deep ulcers where tissue growth is important to cover the depth of an ulcer [7].

The Low Level Laser Therapy is amplified in low light radiated power capable of promoting biochemical, bioelectric and bioenergetics effects as a way of further treatment for the PU [8]. Adel J. Hussein, et al., reported the high phagocytic activity of macrophages during as early as 6 hours. LLLT can facilitate wound healing, which may be due to acute inflammation is resolved more rapidly and the proliferation phase of healing begins earlier, therefore, the LLLT decreased the inflammatory reaction of wound healing [9]. LLLT is also known for its effects such as to accelerate the healing process, to increase tissue granulation, to decrease wound, to reduce inflammatory process and to reduce pain [10].

Considering the effect of acceleration of healing process of LLLT for all types of pressure ulcers and angiogenesis effect of Ultrasound which might prove to be beneficial for deep wounds, when a patient with deep pressure ulcer was referred to Physiotherapy, it was thought to study to combine effect of LLLT and ultrasound in a patient of spinal cord injury with stage 2 pressure ulcer. In this article, healing of a pressure ulcer is described in detail measured with the help of PUSH scale. The depth is measured separately with the help of inch tape.

Case Description

A 34 years old male patient with T4 fracture following road traffic accident came to Physiotherapy department after 1½ months of injury. For this duration patient was admitted in another hospital and was bedridden. Patient also had fracture radius and ulna on right side which was treated conservatively. His chief complaints were inability to get up from lying position, difficulty in maintaining sitting position and inability to move both lower extremities. Score 12 in applying the Braden Scale (7), that is, high risk.

Description of pressure ulcer

As per the information gained from reliable informant, during the stay in another hospital, patient evacuated and urinated in diapers, keeping the wound with excessive moisture and possible contamination. As a result, a single class II pressure ulcer was developed on the sacral region with surface area of 24 cm2. Evaluation of the ulcer was carried out by first author according to PUSH scale. It is a specific instrument for evaluating the PU healing process with three parameters: the wound area, the wound tissue type and exudate amount. The sub scores for these parameters, when combined, generate a total score, which can range from zero to 17. Higher scores indicate worse PU and low scores indicates improvement in PU healing processes. On day 1 of the treatment, PU scored 12 on PUSH scale, with wound area of 24 cm2. Wound area of PU was 4 × 6 cm in dimension measured in a greatest length (head to toe) and greatest width (side to side). Exudate amount was heavy in the first few weeks and wound tissue type was slough which is yellow or white tissue that adheres to the ulcer bed, recorded according to specifications given in PUSH scale. In addition depth was also measured with standard procedure using the cotton tip applicator. At the beginning the depth was 1.9 cm.

Intervention

Pressure ulcer was treated with Therapeutic Ultrasound and LASER. Ultrasound unit of India medico with a frequency of 3 MHz was used. Dosage was calculated according to the surface area and condition of the ulcer. To begin with the 0.8 W/cm2 intensity, pulsed mode was given. Water bag method was used for the treatment since PU was an open wound. A custom made water bag with the plastic glove filled with water was used. To avoid any infection a sterilized glove was used for each application and was placed directly over the PU. A gel was used as a medium for the smooth movement of ultrasound head. The head was moved in all directions over the PU to avoid formation of standing waves.

LASER Therapy was given by a Physiotherapist in Neurophysiotherapy unit by means of LASER Aluminum-Gallium- Indium-Phosphorus (AlGaInP), with a wavelength of 660 nm (Po–30 W peak) brand Technomed with continuous light emission and pulsed once a day, six times a week for twelve consecutive weeks, with a total of 30 applications. At the edges of the PU, it was applied in with 4 J/cm2 for a fixed time and a distance between the points of 1 cm2.

In the center of the PU, application was given at a distance of 1 cm of tissue over a period of three to four minutes. The laser used emits visible red light, which required the use of personal protective goggles for the eyes of the professionals in the application of therapy. The patient did not need to use protective goggles, since the laser application was on his back. The dosage was modified as the recovery took place.

Routine nursing care of PU was continued without any interruption with cleaning and dressing of the wound on alternate days. Reassessment of pressure ulcer was done after every two weeks (Figure 1).

physiotherapy-physical-rehabilitation-Changes-pressure

Figure 1: Changes in pressure ulcer over period of 12 weeks.

Results

The evaluation of the results after the intervention was carried out reusing the PUSH scale for Wound Healing, measuring the depth of a PU. This evaluation took place twice a week, over twelve weeks, always before the patient would receive physical therapy intervention and dressing interventions. (Table 1)

PUSH 1st week (score) 3rd week(score) 5th week(score) 7th week (score) 9th week (score) 12th week(score)
Length × width 10 9 8 6 3 1
Exudate amount 3 3 2 2 1 0
Tissue type 3 3 2 2 1 0
Total score 16 15 12 10 5 1

Table 1: Improvement in pressure ulcer according to PUSH scale.

After 1 week of intervention there was some reduction in the size of the lesion, which was, 4.2 cm of length, width of 6 cm and with an area of 25.2 cm2. But still there was heavy exudate and tissue type was slough.

Though there were no signs of infection or foul odour there was increased maceration and perilesional erythema. There was no granulation tissue and epithelial tissue. This clinical evaluation demanded stronger orientation to the nursing staff and family members about the need to control moisture in diapers, opting for the use of urine collector.

Patient decubitus changes were intensified, though with some difficulty to mobilize when sitting on the chair.

After 3 weeks, the size of the pressure ulcer reduced to 4 cm of length, width of 5.8 cm and with an area of 23.2 cm2. Amount of Exudate was still in large quantity and there was no granulation tissue.

Though the borders of ulcer were defined with some sign of healing, depth was still a challenge. There was no foul odour. Routine nursing care was given along with frequent change of position.

Size of the wound went on reducing further as the granulation tissue was evident after 3 weeks and there was a rapid recovery. (Graph 1)

physiotherapy-physical-rehabilitation-pressure-ulcer

Graph 1: Improvement in pressure ulcer according to PUSH scale.

Discussion

This is a first study to report the combined effect of LLLT and Ultrasound in the management of pressure ulcer in a patient with Spinal Cord Injury. There was a significant decrease in the size of pressure ulcer from 24 cm2 to 0.1 cm2. There was also a significant decrease in the depth of a wound from 1.9 cm to 0.1 cm. LLLT accelerated tissue proliferation and increased local vascularization, with granulation tissue formation by promoting rapid healing of the lesion. Whereas, ultrasound clinically enhances wound healing by producing cellular ultrastructural changes that are critical to normal healing.

The time taken for the recovery is more as compared to the reported literature, probably because of the more depth of PU and the type of tissue in the current PU. Other studies have not mentioned the depth of a PU which is an important factor for healing to take place. Also, the case study reports the tissue type to be granulation tissue right from the 1st assessment whereas in the present study, the tissue type was slough for first 3 weeks. Hence, the healing was slower in the initial weeks i.e. upto 3rd week. As the granulation tissue started appearing from 4th week onwards, healing is seen to be faster.

Therapeutic effects of LLLT and Ultrasound, in combination must have resulted in complete recovery of PU. At the beginning it was necessary to replace slough with granulation tissue so that faster recovery can take place. Proliferative effect of LLLT must have helped to reduce the inflammation and to accelerate the wound healing. New cell growth was necessary to fill up the depth of a PU which might have occurred due to the angiogenesis effect of Ultrasound. This was evident after the granulation tissue that was formed after 3 weeks.

PUSH is the standard scale used for the assessment of wound and used widely but Nursing Outcome Classification [11] is another tool used for the assessment of wounds which the authors came across during their literature review while writing the article. It is a better tool as compared to PUSH scale as it many other aspects of wound are covered in it, such as odour, type of drainage, surrounding skin, periwound oedema. However, NOC also does not include depth of a wound as one of the parameter. Hence a more comprehensive tool can be developed for the assessment of a wound which will include all the parameters. Further studies can use NOC classification for better assessment of a PU.

Conclusion

Combined effect of LLLT and ultrasound resulted in complete recovery of a PU in a patient with Spinal Cord Injury within 12 weeks.

References

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