LLLT, lllt, laser therapy - biostimulation
The Low Level Laser Therapy -
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Low Level Laser Therapy
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selected abstracts from october 2001
830-nm irradiation increases the wound tensile strength in a diabetic murine model. Effects of laser irradiation on the spinal cord for the regeneration of crushed peripheral nerve in rats.
Intravascular low-power laser irradiation after coronary stenting: long-term follow-up The use of low intensity laser therapy (LILT) for the treatment of open wounds in psychogeriatric patients: A pilot study.
Efficiency of low-intensity laser radiation in essential hypertension Magnetic resonance imaging (MRI) controlled outcome of side effects caused by ionizing radiation, treated with 780 nm-diode laser - Preliminary results.
A new type of very low-power modulated laser:soft-tissue changes induced in osteoarthritic patients revealed by sonography A case report of low intensity laser therapy (LILT) in the management of venous ulceration: potential effects of wound debridement upon efficacy.
Assessment of low-power laser biostimulation on chondral lesions: an "in vivo" experimental study. Low power laser protects human erythrocytes In an In vitro model of artificial heart-lung machines.
The efficacy of the transcutaneous magnetic-laser irradiation of the blood in acute salpingo-oophoritis Effects of low-intensity infrared impulse laser therapy on inflammation activity markers in patients with rheumatoid arthritis
The effect of intravenous laser irradiation of the blood on the brain bioelectrical activity in patients in the postcomatose period Laser therapy: a randomized, controlled trial of the effects of low intensity Nd:YAG laser irradiation on lateral epicondylitis.
Osteochondral lesion repair of the knee in the rabbit after low-power diode Ga-Al-As laser biostimulation: an experimental study. Low-intensity laser therapy in pediatric oncology
In vitro effects of low-level laser irradiation at 660 nm on peripheral blood lymphocytes. Ultrastructure of the blood and lymphatic capillaries of the respiratory tissue during inflammation and endobronchial laser therapy.



Abstracts from II Congress of the Internat. Assn for Laser and Sports Medicne,
Rosario, Argentina, March 10-12, 2000.
Korean Research of laser therapy  
Laser therapy is effective for degenerative osteoarthritis UV laser therapy effective for psoriasis
LOW LEVEL LASER THERAPY OF SOFT TISSUE INJURIES UPON SPORT ACTIVITIES AND TRAFFIC ACCIDENTS: A MULTICENTER, DOUBLE-BLIND, PLACEBO-CONTROLLED CLINICAL STUDY ON 132 PATIENTS. TRATAMIENTO DE LA LESION DEL TENDON MANGUITO DE LOS ROTADORES CON LASER DE BAJA POTENCIA - ESTUDIO PROSPECTIVO
Laser and Sports Medicine in Plastic and Reconstructive Surgery. TRATAMIENTO DE LA EPICONDILITIS LATERAL CON LASER DE BAJA POTENCIA. ESTUDIO PROSPECTIVO.
The Japanese Experience in Sumo Wrestling TRATAMIENTO DE LA PARALISIS DE BELL CON LASER DE BAJA POTENCIA . ESTUDIO PROSPECTIVO
Biophysical methods of the control by efficiency of laser therapeutics. TRATAMIENTO DE LA LESION DE OSGOOD - SCHLATTER CON LASER DE BAJA POTENCIA - ESTUDIO PROSPECTIVO.
PRINCIPLES of TREATMENT And LASER THERAPY. EVOLUCION DE UNA QUEMADURA DE TERCER GRADO TRATADA CON LASER DE BAJA POTENCIA.
Treatment of the acute Periarthritis humeroscapular with laserpuncture.  
Therapeutic laser in treatment of trophic ulcers (TU) of venous aetiology  
Laserpharmacology and Achilles tendinopathy  
The influence of chemical substance on the effect of Low-power Laser Therapy.  
TREATMENT OF MEDIAL AND LATERAL EPICONDYLITIS - TENNIS AND GOLFER¨S ELBOW - WITH LOW LEVEL LASER THERAPY: A MILTICENTER, DOUBLE - BLIND, PLACEBO - CONTROLLED CLINICAL STUDY ON 324 PATIENTS.  
PAIN RELIEF AND LASER THERAPY, THE IMPORTANCE IN SPORTS INJURIES.  

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latest abstracts


selected abstracts from october 2001

830-nm irradiation increases the wound tensile strength in a diabetic murine model. Lasers in Surgery and Medicine. 2001; 28 (3): 220-226.
Stadler I, Lanzafame R J, Evans R, et al.

The purpose of this study was to investigate the effects of low-power laser irradiation on wound healing in genetic diabetes. Female mice received 2 dorsal 1 cm full-thickness incisions and laser irradiation (830 nm, 79 mW/cm(2), 5.0 J/cm(2) /wound). Daily low-level laser therapy occurred over 0-4 days, 3-7 days, or nonirradiated. On sacrifice at 11 or 23 days, wounds were excised, and tensile strengths were measured and standardized. Nontreated diabetic wound tensile strength was 0.77 +/- 0.22 g/mm(2) and 1.51 +/- 0.13 g/mm(2) at 11 and 23 days. After LLLT, over 0-4 days tensile strength was 1.15 +/- 0.14 g/mm(2) and 2.45 +/- 0.29 g/mm(2) (P = 0.0019). Higher tensile strength at 23 days occurred in the 3- to 7-day group (2.72 +/- 0.56 g/mm(2) LLLT vs. 1.51 +/- 0.13 g /mm(2) nontreated; P or = 0.01). Low-power laser irradiation at 830 nm significantly enhances cutaneous wound tensile strength in a murine diabetic model.



Effects of laser irradiation on the spinal cord for the regeneration of crushed peripheral nerve in rats. Lasers in Surgery and Medicine 2001, 28 (3): 216-219
Rochkind-S, Nissan-M, Alon-M et al.
The purpose of the study was to examine the recovery of the crushed sciatic nerve of rats after low- power laser irradiation applied to the corresponding segments of the spinal cord. After a crush injury to the sciatic nerve in rats, low-power laser irradiation was applied transcutaneously to corresponding segments of the spinal cord immediately after closing the wound by using 16 mW, 632 nm He-Ne laser. The laser treatment was repeated 30 minutes daily for 21 consecutive days. The electrophysiologic activity of the injured nerves (compound muscle action potentials--CMAPs) was found to be approximately 90% of the normal precrush value and remained so for up to a long period of time. In the control nonirradiated group, electrophysiologic activity dropped to 20% of the normal precrush value at day 21 and showed the first signs of slow recovery 30 day after surgery. The two groups were found to be significantly different during follow-up period (P 0.001). This study suggests that low-power laser irradiation applied directly to the spinal cord can improve recovery of the corresponding injured peripheral nerve.



Intravascular low-power laser irradiation after coronary stenting: long-term follow-up. Lasers in Surgery and Medicine 2001; 28 (3) 212-215.
De-Scheerder-I-K, Wang-K, Kaul-U et al.

A high restenosis rate remains a limiting factor for percutaneous transluminal coronary angioplasty and stenting. The objective of this study was to evaluate the effect of intravascular red laser therapy (IRLT) on restenosis after stenting procedures in de novo lesions. A total of 68 consecutive patients were treated with IRLT in conjunction with coronary stenting procedures. Mean lesion length was 16.5 +/- 2.4 mm. Reference vessel diameter (RVD) and pre-minimal lumen diameter (MLD) were 2.90 +/- 0.15 mm and 1.12 +/- 0.26 mm, respectively. After treatment, MLD was 2.76 +/- 0.32 mm with no procedural complications or in-hospital adverse events. Angiographic follow-up (n = 61) revealed restenosis in nine patients (14.7%) with rate by artery size of > 3 mm (n = 21) 0%; 2.5--3.0 mm (n = 28) 14.2%; and 2.5 mm (n = 12) 41.6%.


The use of low intensity laser therapy (LILT) for the treatment of open wounds in psychogeriatric patients: A pilot study. Physical and Occupational Therapy in Geriatrics. 2000, 18/2 (1-19)
Verdote-Robertson-R, Munchua-M-M, Reddon-J-R.

The effect of low intensity laser therapy on wound healing in a largely psychogeriatric population was assessed over a period of 6 years (1991-1996). In total, 84 psychiatric patients were referred for the treatment of open wounds of varying severity and etiology. The wound status, nutritional status, walking status, and psychiatric condition of each patient were assessed prior to the administration of laser therapy treatment. Traditional wound care management was also used in addition to laser therapy. According to laser therapy treatment protocol for open wounds, a single diode laser probe was used for biostimulation of the wound bed and the wound periphery. Pre- and post-treatment measurements of wound size
were obtained periodically for a total of 188 open wounds. 84% of these wounds completely healed, 11.2% partially healed, 2.1% did not change, and 2.7% got worse. The number of treatments for the 158 completely-healed wounds ranged from 3 to 133 (mean 18.5) and the treatment period ranged from 5 to 383 days (mean 47.7). Wound healing was found to be related to nutritional status but neither walking status nor wound size. Results indicate that LILT is effective in the treatment of open wounds when it is used as a component of a total wound management program.


[Efficiency of low-intensity laser radiation in essential hypertension]. Klinicheskaia meditsina(Mosk). 2001; 79 (1): 41-44.
Velizhanina-I-A, Gapon-L-I, Shabalina-M-S et al.

In a placebo-controlled study an antihypertensive activity of low- intensive laser radiation (LILR) was evaluated in 52 males with essential hypertension stage I. The placebo group consisted of 14 matched patients. LILR was used as monotherapy of 10 daily procedures. This treatment significantly lowered systolic, diastolic and mean arterial pressure. Moreover, diastolic arterial pressure did not rise high at submaximal bicycle exercise. Total peripheral vascular resistance also decreased. A good hypotensive effect was achieved in 90.4% cases.


Magnetic resonance imaging (MRI) controlled outcome of side effects caused by ionizing radiation, treated with 780 nm-diode laser - Preliminary results. Journal of Photochemistry and Photobiology B: Biology. 2000; 59/1-3 (1-8)
Schaffer-M, Bonel-H, Sroka-R.

Ionizing radiation therapy by way of various beams such as electron, photon and neutron is an established method in tumor treatment. The side effects caused by this treatment such as ulcer, painful mastitis and delay of wound healing are well known, too. Biomodulation by low level laser therapy (LLLT) hasbecome popular as a therapeutic modality for the acceleration of wound healing and the treatment of inflammation. Evidence for this kind of application, however, is not fully understood yet. This study intends to demonstrate the response of biomodulative laser treatment on the side effects caused by ionizing radiation by means of magnetic resonance imaging (MRI). Study design/patients and methods: Six female patients suffering from painful mastitis after breast ionizing irradiation and one man suffering from radiogenic ulcer were treated with (lambda)=780 nm diode laser irradiation at a fluence rate of 5 J/cm(2). LLLT was performed for a period of 4-6 weeks (mean sessions:25 per patient, range 19-35). The tissue response was determined by means of MRI after laser treatment in comparison to MRI prior to the beginning of the LLLT. Results: All patients showed complete clinical remission. The time-dependent contrast enhancement curve obtained by the evaluation of MR images demonstrated a significant decrease of enhancement features typical for inflammation in the affected area.



A new type of very low-power modulated laser:soft-tissue changes induced in osteoarthritic patients revealed by sonography. International Journal of Clinical Pharmacology Research. 2000; 20 (1-2): 13-6.
Baratto-L, Capra-R, Farinelli-M et al.

Patients with symptomatic osteoarthritis of the cervical spine were studied by ultrasound examination. The region of interest was the soft connective tissue layer above the right and the left superior trapezium that revealed a significant difference in thickness between the left and right side. The aching side was treated with a new type of very low-power, modulated laser for 3 min. Immediately after application, the sonographic examination revealed a significant symmetrization of the subcutaneous tissue.


A case report of low intensity laser therapy (LILT) in the management of venous ulceration: potential effects of wound debridement upon efficacy. Journal of Clinical Laser Medicine & Surgery. 2000; 18 (1): 15-22
Lagan-K-M, Mc-Donough-S-M, Clements-B-A, Baxter-G-D.

This single case report was undertaken as a preliminary investigation into the clinical effects of low intensity laser upon venous ulceration, applied to wound margins only, and the potential relevance of wound debridement and wound measurement techniques to any effects observed. The patient was required to attend 3 times per week for a total of 8 weeks. Treatments were carried out using single source irradiation (830 nm; 9 J/cm2) in
conjunction with dry dressings during each visit. Assessment of wound surface area, wound appearance, and current pain were completed by a independent investigator. Planimetry and digitizing were completed for wound tracings and for photographs to quantify surface areas.Video image analysis was also performed on photographs of wounds. The primary findings were changes in wound appearance, and a decrease in wound surface area (range 33.3-46.3%), dependent on the choice of measurement method. Wound debridement emerged as an important procedure to be carried out prior to measuring wounds. Despite fluctuating pain levels recorded throughout the duration of the study, VAS scores showed a decrease of 15% at the end of the study. This hypoalgesic effect was, however, statistically significant Low intensity laser therapy at this dosage, an using single source irradiation would seem to be an effective treatment for patients suffering venous ulceration.


 

Assessment of low-power laser biostimulation on chondral lesions: an "in vivo" experimental study. Artificial cells, blood substitutes, amd immobilization biotechnology. 2000;28 (5): 441-449.
Guzzardella-G-A, Morrone-G, Torricelli-P et al.

The purpose of this study was to evaluate whether intraoperative laser biostimulation can enhance healing of cartilaginous lesions of the knee. Surgery was performed on eighteen rabbits: a bilateral chondral lesion of 1.25 +/- 0.2 mm in length and 0.8 +/- 0.2 mm in width was created in the femoral medial condyle with a scalpel. The lesion in the left knee of each animal was treated intraoperatively using the diode Ga-Al-As 780nm. laser (300 Joules/cm2, 1 Watt, 300 Hertz, 10 minutes), while the right knee was left untreated, as control group. The animals were divided into three groups, A, B and C, according to the survival time after surgery, two, six and twelve weeks, respectively. The explants from the femoral condyles, both treated employing laser energy and left untreated, were examined histologically. Results showed a progressive filling with fibrous tissue of the cartilaginous lesion treated with laser irradiation, while no changes in the original lesion of the untreated group were observed at the end of the study.


Low power laser protects human erythrocytes In an In vitro model of artificial heart-lung machines. Artificial Organs. 2000; 24 (11): 870-3.
Itoh-T, Murakami-H, Orihashi-K et al.

The protective effect of the low power helium-neon (He-Ne) laser against the damage of human erythrocytes in whole blood was examined in a perfusion model using an artificial heart-lung machine. Preserved human whole blood was diluted and perfused in 2 closed circuits with a double roller pump. The laser irradiated one of the circuits (laser group), and none the other (control group). In the laser group, erythrocyte deformability and erythrocyte
ATP levels were significantly higher, and freehemoglobin levels were significantly lower than those in the control group. Subsequent morphological findings by means of scanning electron microscope were consistent with these results. Low power He- Ne laser protected human erythrocytes in the preserved diluted whole blood from the damage caused by experimental artificial heart-lung machines.


[The efficacy of the transcutaneous magnetic-laser irradiation of the blood in acute salpingo-oophoritis] Voprosy kurortologii, fizioterapii, i lechebnoi fizicheskoi kultury. 2000 (1): 32-35.
Manukhin-I-B, Matafonov-V-A, Mamedov-F-M.

The effect of including transcutaneous low-intensity magnetic-laser radiation of blood in combined antiinflammatory therapy of salpingo- oophoritis was studied. This physiotherapy stimulates phagocytic activity of neutrophilic leukocytes of the peripheral blood, promotes faster normalization of enzymatic and non-enzymatic systems of these cells.


[Effects of low-intensity infrared impulse laser therapy on inflammation activity markers in patients with rheumatoid arthritis]. Terapevticheskii arkhiv. 2000; 72 (5): 32-4.
Ilich-Stoianovich-O, Nasonov-E-L, Balabanova-R-M.

To evaluate effects of low-intensity infrared impulse laser therapy (IRILT) on concentration of immunity activation (not readable: see text) (soluble receptors of TNF-alpha and neopterin)
and indicator of the inflammation activity (concentration of C- reactive protein) in patients with rheumatoid arthritis (RA).Enzyme immunoassay, radioimmunoassay, enzyme immunoassay and radial immunodiffusion were used to measure soluble receptors of TNF-alpha, neopterin and C-reactive protein in 38 females with verified RA receiving IRILT or sham procedures. IRILT induced lowering of neopterin, TNF-alpha soluble receptors (p 0.01) and C-reactive protein (p 0.01). The findings give pathogenetical grounds for IRILT use in RA as this treatment suppresses functional activity of macrophages, which serve the main source of neopterin and the receptors synthesis.


[The effect of intravenous laser irradiation of the blood on the brain bioelectrical activity in patients in the postcomatose period]. Vopr-Kurortol-Fizioter-Lech-Fiz-Kult; 2000; (2): 28-31.
Idrisova-L-T, Enikeev-D-A, Vasil-eva-T-V.

The article presents clinical data on therapeutic effects of intravenous laser blood irradiation (BI) in severe alcoholintoxication complicated by alcohol coma. BI effectiveness was assessed by EEG changes within 3 postcomatose days. Changes in brain biopotentials in various postcomatose periods were unidirectional. Positive results were achieved after low-intensity laser radiation.


Laser therapy: a randomized, controlled trial of the effects of low intensity Nd:YAG laser irradiation on lateral epicondylitis.
Archives of physical medicine and rehabilitation .2000; 81 (11): 1504-1510.

Basford-J-R, Sheffield-C-G, Cieslak-K-R.

The aim of this study was to assess the effectiveness of low intensity laser therapy in the treatment of lateral epicondylitis. A double-masked, placebo-controlled, randomized clinical trial.: A physical medicine and rehabilitation clinic. Fifty-two ambulatory men and women (age range, 18-70 yr) with symptomatic lateral epicondylitis of more than 30 days in duration and a normal neurologic examination. Subjects were bloc randomized into 2 groups with a computer-generated schedule. All underwent irradiation for 60 seconds at 7 points along the symptomatic forearm 3 times weekly for 4 weeks by a masked therapist. The sole difference
between the groups was that the probe of a 1.06-microm continuous wave laser emitted 204 mW/cm2 (12.24 J/cm2) for the treated subjects and was inactive for the control subjects. Subjects were assessed at the beginning, midpoint (session 6), and end (session 12) oftreatment, as well as at follow-up 28 to 35 days after their las ttreatment.: Pain in last 24 hours, tenderness to palpation, and patient's perception of change (benefit). The treated and untreated groups were well matched demographically. Masking was maintained for subjects and therapists; however, the groups did not vary to a statistically significant extent in terms of the main outcome measures either during treatment or at follow-up. Secondary outcome variables, such as grasp and pinch strength, medication use, and pain with grasp and pinch, also failed to statistically differ significantly between the groups. No significant treatment side effects were noted: Treatment with low intensity 1.06-microm laser irradiation within the parameters of this study was a safe but ineffective treatment of lateral epicondyliti


Osteochondral lesion repair of the knee in the rabbit after low-power diode Ga-Al-As laser biostimulation: an experimental study.
Artificial Cells, Blood Substitutes, and Immobilization Biotechnology. 2000; 28 (4): 321-336.

Morrone-G, Guzzardella-G-A, Torricelli-P et al.

The purpose of this study was to evaluate whether low-power laser biostimulation of the osteo-chondral lesions of the knee could by itself reduce repair healing time. Surgery was performed on eighteen rabbits; a bilateral osteo-chondral lesion of 2.5mm in diameter and 2mm depth was created in the femoral medial condyle with a drill. The left knee of each animal was treated intraoperatively using the diodeGa-Al-As laser (780nm) with the following parameters: 300 Joules/cm2, 1 Watts, 300 Hertz, 10 minutes; the right knee was left untreated, as control group. The animals were divided into three groups, A, B and C, according to the survival time after surgery, two, six and twelve weeks, respectively. The explants from the femoral condyles, either treated employing laser energy or left untreated, were examined histomorphometrically. Results after laser treatment showed faster healing of the lesion at week 2) and an overall improvement in cellular morphology while a more regular aspect of the osteocartilaginous tissue was observed at week 12 A relationship between laser biostimulation properties and healing of the osteo-chondral defect has been demonstrated.


[Low-intensity laser therapy in pediatric oncology]. Voprosy Onkologii; 2000, 46 (4): 459-61.
Balakirev-S-A, Gusev-L-I, Kazanova-M et al.

Application of low-intensity laser radiotherapy (LILR) allowed to cut down time needed for management of radiation injury and chemotherapy complications in pediatric patients 1.5-2-fold. It was shown that exposure to LIILR caused mononuclear (MN) levels of donors' blood to rise which in turn led to release, in higher concentrations, of IL-1 and FNO cytokins, major factors of immune response development.

 


In vitro effects of low-level laser irradiation at 660 nm on peripheral blood lymphocytes. Lasers in surgery and medicine 2000; 27 (3): 255-261.
Stadler I, Evans-R, Kolb B, Naim-J-Oet al.

The effects of low-level laser light irradiation are still highly contested, and the mechanisms of its action still unclear. This study was conducted to test the effects of low-level laser irradiation at 660 nm on human lymphocytes and to investigate the possible mechanisms by which these effects are produced.: Whole blood obtained by phlebotomy was irradiated at 660 nm by using energy fluences between 0 and 5.0 J/cm(2). The lymphocytes were isolated after irradiation of the whole blood. For the control experiment, the lymphocytes were first isolated and then irradiated at the same wavelength and energy fluence for comparison. The proliferation of lymphocytes and the formation of free radicals and lipid peroxides were monitored. Hemoglobin was also irradiated in a cell-free environment to test for the production of lipid peroxides. Lymphocyte proliferation was significantly higher as expressed by a Stimulation Index in samples irradiated in the presence of whole blood compared with lymphocytes irradiated after isolation from whole blood. Free radical and lipid peroxide production also increased significantly when samples were irradiated in the presence of red blood cells.The present study supports the hypothesis that one mechanism for the photobiostimulation effect after irradiation at 660 nm is the reaction of light with hemoglobin, resulting in oxygenradical production.


Ultrastructure of the blood and lymphatic capillaries of the respiratory tissue during inflammation and endobronchial laser therapy. Ultrastructural Pathology. 2000; 24 (3): 183-189.
Polosukhin-V-V.

For wide application of low-energy laser irradiation in the pulmonary clinic, study of the structural basis of the therapeutic effect is necessary. The aim of this research is to describe the structural changes of the blood and lymphatic capillaries in the respiratory tissues during inflammation and following laser biostimulation. Comparative ultrastructural study was carried out on 127 open respiratory biopsy specimens from 45 patients with infectious- destructive lung diseases. These patients were divided into two groups, depending on tactic of pre-operative therapy: patients treated by only traditional anti-inflammatory measures and patients receiving additional laser therapy. Heightened permeability of the blood capillary endotheliocytes was noted as the initial stage in the development of the inflammatory reaction. Intensification of the process of permeability is accompanied by interstitial edema,
deformation of the interalveolar septa, and structural disorganization of alveolar epithelium cells. Local lesions of microcirculation result in tissue hypoxia and induce processes of
fibrosis. Laser biostimulation promotes reversion of the inflammatory process and stabilizes fibroplastic processes. Basic principles of pathogenetic therapy were stated. It was shown that low-energy laser irradiation satisfies these requirements as an additional method in the therapy of destructive lung diseases.


 


Below - Abstracts from II Congress of the Internat. Assn for Laser and Sports Medicne,
Rosario, Argentina, March 10-12, 2000.

 
Laser therapy is effective for degenerative osteoarthritis
Stelian J, Gil I, Habot B et al. Improvement of pain and disability in elderly patients with degenerative osteoarthritis of the knee treated with narrow-band light therapy. J Am Geriatr Soc. 1992; 40: 23-26.

In an Israeli study the effect of laser therapy in degenerative osteoarthritis (DOA) of the knee was investigated in a double blind study among 50 patients. One group received infrared (GaAlAs) and one red (HeNe) laser. Only the first group could be blinded, while the latter was open. Patients were treated twice daily, 15 minutes each time, for 10 days. The patients treated themselves after instruction. Total dose for each session was 10.3 J for red and 11.1 for infrared. Continuous mode was used for 7.5 minutes, pulsed for 7.5 minutes, rationale not stated. There was a significant pain reduction in the laser groups as compared to the placebo groups. There was no significant difference between the red and the infrared group. The Disability Index Questionnaire also revealed an improvement in the laser groups. All patients in the placebo group required analgesics within two months after laser therapy while the patients in the laser group were pain free ranging from 2 months to 1 year.

LaserWorld comments: although rather old, this study has attracted little attention, probably because the phrase "laser" is not used in the headline, thus making it unavailable on Medline search.


 

UV laser therapy effective for psoriasis
Source: Bonis, B et at. Lancet Vol 350, No 9090, p. 1522, 22 Nov. 1997

In a study by Bonis et al, six psoriasis patients were treated with conventional ultra violet B light therapy (311 nm), five sessions per week with increased dosage each session. During this therapy a part of the skin was covered. After completing the UVB therapy the covered skin area was uncovered and irradiated with Xenon Chloride laser (308 nm). It took an average of 8.33 sessions for laser and 30.1 sessions for UVB to achieve the same therapeutic result. The total energy density of the laser was 4.81 J/cm2 and 31.3 J/cm2 for UVB. To lowered energy density and the lowered total dose means that the cumulative dose was 6.46 less in the laser therapy, thus reducing the risk for skin cancer. The laser therapy was also more cost effective.

LaserWorld comment: HeNe laser therapy would probably also be effective, and would completely remove the risk of side effects.



TRATAMIENTO DE LA LESION DEL TENDON MANGUITO DE LOS ROTADORES CON LASER DE BAJA POTENCIA - ESTUDIO PROSPECTIVO. Doris E. Paolini* y Luis E. Paolini - Pisani*

Se realizó un ensayo clínico prospectivo, durante el lapso de julio de 1996 a Diciembre de 1999, en el INSTITUTO DE MEDICINA INTEGRAL, cuyo objetivo fue evaluar la eficacia del tratamiento con láser de baja potencia de la lesión del tendón manguitos de los rotadores. La muestra que cumplió los criterios de inclusión, fue conformada por 99 pacientes, que fueron distribuidos por asignación aleatoria en 3 grupos de 33 pacientes cada uno: Grupo I: tratado con láser HeNe 632, 8 nm en forma puntual, a través de fibra óptica, durante 25 sesiones. Grupo II: tratado con luz roja tipo LED, 660 nm en días alternos, durante 25 sesiones y Grupo III: tratado con medicación AINE durante el mismo lapso. Se hace una comparación entre los tres grupos, apreciándose los excelentes resultados en el grupo tratado con láser, frente a los pésimos resultados en el grupo tratado con la luz LED y los regulares resultados obtenidos en el grupo tratado con AINES. Nosotros probamos que la láserterapia es mucho más efectiva para obtener la curación de la lesión, y la recomendamos como tratamiento de elección, por su inocuidad frente a la medicación. También probamos que la luz roja LED no produce ningún efecto en los pacientes afectos de la tendonitis en estudio.



The Japanese Experience in Sumo Wrestling
Toshio Ohshiro (1), Katsumi Sasaki (2), Shouhei Yasuda (2), Shunji Fujii (3), Takafumi Ohshiro (3), Takeo Touno (4), Shigeru Matsumoto (4) 1) Japan Medical Laser Laboratory , 2) Oshiro Clinic, 3) Keio University Dept. of Plast. and Reconst. Surgery, 4) Nihon Sport Science University.

Sumo Wrestling is the only national endorsed sport in Japan. Professional Sumo Wrestlers belong to the Nihon Sumo Kyokai (Japan Sumo Wrestling Association). Sumo Wrestling meets bimonthly, 6 times a year. Each Sumo sessions has 15 days where the Wrestlers must wrestle for 15 consecutive days against 15 different opponents. This national sport is popular and there are many Sumo Wrestling Teams for all ages. The strongest person from these teams are recruited to the Nihon Sumo Kyokai and become professional. Most Sumo Wrestlers have some symptoms such a pain due to prior injuries and their hard training. We recently had the opportunity to perform Laser Therapy on 6 Sumo Wrestlers who were complaining of various symptoms. We would like to explain about the removal of those symptoms by LLLT, and how Laser therapy effected their performance. All 6 performed better both subjectively and objectively while their symptoms were alleviated by Laser and their winning rate increased following treatment. We will discuss major and common injuries associated with Sumo Wrestling and the treatment thereof. We would like to comment on treatment methodology and statistical analysis.


 

TRATAMIENTO DE LA EPICONDILITIS LATERAL CON LASER DE BAJA POTENCIA. ESTUDIO PROSPECTIVO. Luis E. PAOLINI-PISANI*; Doris E. PAOLINI* Y Juan T. GONZALES ** *INSTITUTO DE MEDICINA INTEGRAL, San Cristóbal, Venezuela. ** Departamento de Bioquímica, Facultad de Medicina, Universidad de los Andes, Mérida, Venezuela.

La epicondilitis lateral, es una patología muy frecuente en deportistas y trabajadores que utilizan constantemente la conjugación antebrazo-codo. Los Jugadores de tenis (de allí el nombre: codo de tenista) y las armas de casa son algunos ejemplos. En el presente trabajo, nosotros presentamos estadísticas que prueban que la radiación láser de baja potencia, aplicada en la región afectada, disminuye el dolor, la impotencia funcional y el edema relacionados con la entidad patológica. Se seleccionaron 80 pacientes que acudieron a consulta al Instituto de Medicina Integral entre el 1º de Enero de 1997 y el 1º de Enero de 1999 y que cumplieron los criterios de selección (dolor, impotencia funcional y edema). La muestra fue dividida en dos grupos: El primero, fue tratado con piroxican per os. MID, y aplicación tópica en el gel BID. El segundo grupo fue sometido a tratamiento con láser de baja potencia, IR a diodo de AsGa, 904 nm; aplicado puntualmente sobre la zona afectada (epicóndilo), a una dosis de 12 Jules/cm2 en 20 sesiones en días alternos. A todos los pacientes se le colocó un soporte durante el día. Ambos grupos fueron evaluados semanalmente durante el tratamiento chequeándose cada uno de los criterios de inclusión. Al concluir el tratamiento, se evaluaron los resultados de los tres parámetros de inclusión. Se demuestra que la aplicación de láser de baja potencia, es mucho más efectiva que los métodos convencionales, para obtener la mejoría del problema, al punto que recomendamos este tratamiento como el tratamiento de elección, con la finalidad de obtener los mejores resultados.


 

Laser and Sports Medicine in Plastic and Reconstructive Surgery. Junichiro Kubota M.D. Department of Plastic and Reconstructive Surgery, Kyorin University School of Medicine, Tokyo, Japan.

Flap survival with diode laser therapy: Skin flap or graft surgery are major procedures in Plastic and Reconstructive Surgery. Skin flap necrosis has been a problem for us. The author reported on the enhanced blood flow following the low reactive laser therapy in skin flaps. The 830 nm diode laser (20 - 60 mw) irradiated flaps showed a greater perfusion, a greater number of blood vessels, and a higher rate of survival areas than the control flaps in the rat models and clinical cases. Improve of wound healing with diode laser therapy: The diode laser therapy was indicated for traumatic skin ulcers received from sport activities and traffic accidents which had proved resistant to conservative treatment. The diode laser system has a wavelength of 830 nm. And output power of 150or 1000mw in continuous wave. The diode laser was applied with the non-contact method to the area on the wound for one minute once a day every day during the treatment period. The diode laser was used successfully for the rapid enhanced healing of traumatic skin ulcers in clinical cases. Pain attenuation of the temporomandibular joint with diode laser therapy:

Laser therapy has been applied for temporomandibular joint pain which follows as a result of mal-occlusion, mandibular contusions or mandibular fracture. The diode laser was applied with contact method to the area of around a temporomandibular joint, especially, tender points with pressure for 1 minute to 5 minutes (5 sec. To 15 sec./one point). The pain decreased after one or two treatments. The patients had goods results. Treatment of traumatic tattoos with Q-switched Nd:YAG laser: For many years, the treatment of traumatic tattoos during outdoor sports or traffic accidents has presented a major set of problems to plastic surgeons. I would like to introduce treatment of the traumatic tattoos with Q-switched Nd:YAG laser (wavelengths 1064 nm. Energy density 4 to 6 J/cm). All patients were successfully treated with no scarring and no hyperpigmentation.

Discussion: The majority of patients hope to avoid undergoing a surgical operation, trying instead with conservative treatments for injuries. The diode laser therapy improved the flap circulation and wound healing of severe skin ulcers. And this therapy has been applied for temporomandibular joint pain and we have obtained favorable results. The diode laser therapy has proved to be particularly effective for pain attenuation. The diode laser therapy may well offer an additional convenient, safe and side-effect free method. On the other hand, the Q-switched Nd:YAG laser system applied to the traumatic tattoos, achieving consistently good results concomitant with easy and safe operation, successfully achieving excellent lightening of the target lesions.


 

 

LOW LEVEL LASER THERAPY OF SOFT TISSUE INJURIES UPON SPORT ACTIVITIES AND TRAFFIC ACCIDENTS: A MULTICENTER, DOUBLE-BLIND, PLACEBO-CONTROLLED CLINICAL STUDY ON 132 PATIENTS. Zlatko Simunovic, M.D., F.M.H. (1), Tatjana Trobonjaca, M.D. (2) (1) Pain Clinic-Laser Center, Locarno, Switzerland; (2) 2 Laser Center, Opatija, Croatia. (3)

The aim of current multicenter clinical study was to assess to efficacy of Low Level Laser Therapy (LLLT) in the treatment of sport- and traffic-related soft tissue injuries compared to the placebo and classical physiotherapeutic procedures. This study was conduct in two centers located in Locarno, Switzerland (n=94) and Opatija, Croatia (n=38). Two types of irradiation techniques were used: (1) direct, skin contact technique for treatment of Trigger Points (TPs) where infrared diode laser (GaAIAs) 830 nm continuous wave was applied; and (2) scanning technique for irradiation of larger surface area with use of Helium Neon (HeNe) laser 632.8 nm combined with infrared diode laser 904 nm pulsed wave. Control group of patients was treated with classical physiotherapeutic procedures. Results were evaluated according to the clinical parameters like: hematoma, edema, heat, pain and loss of function. All findings were scored and statistically analyzed according to the chi-square test. The results have demonstrated that the recovery process was accelerated (35-50%) in 85% of patients treated with LLLT compared to the control group of patients, what is specially important by professional athletes. The advantages of LLLT observed in this study appear to be efficient withdrawal of all clinical symptoms, functional recovery, no risks or side effects, painlessness, good toleration by any age and sex, cost benefit, etc. The results and advantages obtained proved once again the efficacy of LLLT as new as successful way in the treatment of soft tissue injuries.


 

TRATAMIENTO DE LA PARALISIS DE BELL CON LASER DE BAJA POTENCIA . ESTUDIO PROSPECTIVO Luis E. Paolini-Pisani* y Doris E. Paolini* *INSTITUTO DE MEDICINA INTEGRAL, San Cristóbal, Venezuela.

La parálisis de Bell es una entidad de inicio súbito y causa desconocida, que obedece a lesión del nervio facial en su transcurrir a través del hueso temporal. El tratamiento del láser con baja potencia tiende a producir resolución de éste tipo de lesión en un período entre una y dos semanas, siempre y cuando el tratamiento se inicie al comienzo del cuadro clínico. En este estudio, nosotros proponemos el uso del láser da baja potencia, y diseñamos un protocolo de tratamiento para ésta lesión. 40 pacientes con diagnóstico de Parálisis de Bell fueron divididos en dos grupos de 20 pacientes cada uno. El primer grupo fue tratado con láser infrarrojo a diodo, 904 nm en forma puntual, seguido de un barrido con una mezcla de láser infrarrojo y láser HeNe, en sesiones diarias de Lunes a Viernes durante las primeras tres semanas (15 sesiones) y luego en días alternos, hasta completar 30 sesiones. Los otros 20 pacientes (grupo control) fueron tratados con prednisona a dosis de 60 mg./día per os junto a estimulación farádica del nervio. Demostramos que la terapia con láser de baja potencia es mucho más efectiva que la terapia convencional.


 

Biophysical methods of the control by efficiency of laser therapeutics. V. M. LISIENKO. THE URAL STATE MEDICAL ACADEMY.

The fact of existence of liquid Crystals in bioliguids in organism and their ability to structuring are known. In our clinic we studied the morphology L. C. In BL of organism. We established observed Structures in polarizing microscope are changed in rehabilitation process. During pathological process and peak of the disease the great number of various kinds LC structures are revealed in biomedium. Their number is decreasing during the treatment. Massive dendrites are changed by thin crystal structures, big spheroliths disappear. In combinations with clinical refractometric and photometrical data structure analysis of BL gives the possibility to differentiate the standard and the pathology, to estimate the heaviness of patient condition, dynamics of pathological process, to control the effectiveness of treating measures. We established LC are susceptible to low intensive laser irradiation (LILI). Have been revealed, that structures of bioliguids change LC picture with the LILI influence, and LILI exerts not only local but generalized influence upon organism (alteration of bioliguids theory).

On the base of biophysical parameters, the refraction index, determined refractometrically, the new method of determining of individual sensibility of organism to LILI was worked out. Also the method photometry in polarized light was suggested. It gives the possibility to determine in quantitative the expression part of crystal and LC phase in specimen. Good clinical result is achieved by low power of irradiation and optimal time of influence. Methods were approved in clinic in 17647 patients. All these patients were suffering with purulent diseases of soft tissues and with various abdominal pathology. Effectiveness was confirmed on practice in treatment of therapeutic, pulmonologic, dermatologic patients. This diagnostic, prognostic and statistic value proved.


 

PRINCIPLES of TREATMENT And LASER THERAPY. Mikhailov V.A. SCIENTIFIC - PRACTICAL CENTER of LASER MEDICINE MOSCOW.

In 1988 we have begun researches on usage of a laser therapy for ill with different diseases. Now we possess experience of treatment more than 700 patients with different diseases a crab of different localization, bronchial asthma, autoinmune thyroiditis, different acute and chronic diseases, peptic ulcer, etc. By main problem for any specialist as soon as possible to cure ill. It is reached by usage of the most effective method of treatment or speed key of several different methods of therapy. But at usage of this or that method of treatment the doctor should know following:

  1. by what way it is possible to use this method
  2. the gear of medical operating of this way of treatment
  3. the most effective doses and modes at which one there is a greatest medical effect.

Any organism can exist only at full synchronnizations of activity all of his (its) tissues and systems. The regulation of habitability by processing of many different stimulus´s, which one, locally affecting on those or diverse receptors and cages, call (cause) local reacting of tissues. The central nervous system processes (treats) the obtained information, causes (urges) an organism to react to the given stimulus in appropriate way. Therefore basis (fundamentals) of habitability of any organism the adequate answer to local reacting of his (its) cages called what or stimulus. Thus, the local reacting are dominating in composite, all-level hierarchy of an organism. The degree of reacting depends from as on a reactivity of an organism, and from force of a stimulus. The reliability of any system is encompass bayed of reliability of its (her) automatic control. In a CNS, the self -sustained oscillations adjusting a homeostasis, implement a hypothalamus, which one is center of federating of vegetative department of a nervous system and endocrine systems of the main (basic) executive links adjusting influencing a CNS on internal environment of an organism. On endocrine a system the hypothalamus exerts influence through a pituitary body. Thus, hypothalamus-hypophyses the system executes automatic control neurohymoral and hormonal processes, which one counter to the permanently varied factors not only internal, but also environment. This self regulation will be realized in the complex (integrated) answer of the gland of an internal secretion and inmunocompetent bodies (organs), which one cause (urge) an organism to react to any stimulus.

The forces of reaction of an organism are piled from a basic (initial) reactivity of an organism and force of an external stimulus, transferring (translating) it (him) in operational mode, optimal for maintenance of a homeostasis, at complex (integrated) effect of all stimulus´s, both external, and internal.

The basic (initial) reactivity is adjusted (regulated) at the expense of a feedback of all these bodies (organs) and system with a CNS, i.e. permanently there is a self regulation of an organism. The advantage of a laser therapy is encompass bayed volume, that with its (her) help it is possible to affect different bodies (organs) and tissues of and organism, calling (causing) indispensable reacting of these tissues and bodies (organs) and if necessary it is possible to receive the greatest effect in indispensable period. All this allows to use a laser therapy in sporting medicine for the following purposes:

  1. Treatment of a sporting trauma.
  2. In rehabilitation period after traumatic damages.
  3. For preventive measures of possible (probable) traumas.
  4. For opening-up of the sportsmen for the most relevant competing.


Treatment of the acute Periarthritis humeroscapular with laserpuncture. Odalys Gonzáles Álvarez, Main Educational Clinic of Urgencies "Antonio Maceo", Cerro Municipality, Havana City.

The periarthritis humeroscapular is a syndrome that contains very precise affections: the bursitis, the calcified tendinitis of supraespinoso, the bicipital tendinitis, among others. Pain and limitation of the joint movements of the shoulder characterize it. The treatment with laser of low power can produce resolution of the lesion, whenever it is made in early phases of the disease. In this study we propose the use of the laserpuncture, due to our accumulated experience in the treatment of these affection in acute phase, with acupuncture. A prospective study was carried out during 2 years (1997 - 1999), where 62 patients were selected because they accomplished the Approaches of Inclusion for the study. The sample was divided by aleatory assignment in 2 Groups of Treatment. Th study Group I was treated with laserpuncture, using Cuban laser equipment of HeNe of 632,8 nm and a dose of joule/cm2 was applied, and the Control Group II was treated with acupuncture needles. The conventional medical treatment was suspended. Daily sessions were given from Monday to Friday, for two weeks, until a total of 10. Both techniques demonstrated to be effective in the treatment of these affections, improving the clinical and radiological symptoms significantly when the treatment sessions was concluded. The patients accepted the laserpuncture better because of its painless character, less time of application, and the absence of bleeding and stress.


 

Therapeutic laser in treatment of trophic ulcers (TU) of venous aetiology . V. M. Lisienko, O. J. Menjajlenko. The Ural State Medical Academy.

The venous system pathology of low extremities is revealed in 15-20 per cent of adult population of Russia. 2 per cent of work age have got TU of venous aetiology.

The variety of medicine, using in traditional conservative treatment of TU of low extremities has not led to common method, preventing recurrence of the disease. The main direction of this treatment of TU is surgical correction of destructive venous blood flow with combination ofsclerotherapy and compress therapy. One of methods is laser treatment. Using of low intensive irradiation (LII) for this category of patients has given the possibility to improve the results of therapy. Side by side with known theories of LII influence of trauma process, we connect them with biophysical mechanism of laser irradiation influencing on liguidcrystal structures of bioliguid of organism and with structure alteration of tissues.


Laserpharmacology and Achilles tendinopathy
Paul Meersman, Private Laser and Sport Medical Center, Kapelle op den Bos, Belgium.
The Achilles tendon, although the largest and strongest in the human body, has since classical times been recognized as a weak point. In the case of Achilles it was severed by an arrow, but for athletes it is the combination of repetitive body load, the whip effect of pronation in the running gait and potential intrinsic weakness or collagen deterioration with age, that makes it so vulnerable.
The bad results with conservative therapy and pure LLL therapy pushed us to use a combination of LLLT and local infiltration of concomitant medication.
The subjects were 100 successive athletes, with chronic Achilles tendinophaty, these patients already had a conservative treatment for six months without positive results.
Our method was a combination of PDT with plenosol I.D. and 904 nm LLLT and afterwards a cooling down treatment with Ubiquinon, Ferrum and Zinc S.C. infiltration with 632,8 nm, 830 nm, and 904 nm LLLT. With an average of 4 treatments within 14 days, we reached a healing time of 16 days, with a success rate of 90%. These results made us conclude that a good knowledge of interaction between Laser and pharmacology can reduce our treatment and rehabilitation time, even for chronic diseases.



The influence of chemical substance on the effect of Low-power Laser Therapy.
Paul Meersman, Private Laser and Sport Medical Centre, Kapelle op den Bos, Belgium.
The purpose of this lecture is to conduct a hypothetical and theoretical clinical study and a review of the scientific literature on the potentialising or inhibiting effect of medication in combination with low-power laser therapy.(LPLT)
Specialist attending LPLT congresses are struck by the fact that LPLT is often combined with all kinds of medication, without paying any attention to the possible interaction between the two types of therapy.
In conclusion, we can state that LPLT and medication are indeed interactive and that in case of concurrent use of medication administered orally or intraleasionally, LPLT can either be inhibited, (cfr. Aspirine deactivation of PDT) or stimulated. In a second lecture we prove our hypothetical deduction in a clinical study about Achilles tendinopathy.



TRATAMIENTO DE LA LESION DE OSGOOD - SCHLATTER CON LASER DE BAJA POTENCIA - ESTUDIO PROSPECTIVO.
Luis E. Paolini - Pisani*, Doris E. Paolini* y Juan T. Gonzáles**
*INSTITUTO DE MEDICINA INTEGRAL, San Cristobal, Venezuela. (lpaolini@telcel.-net.ve).
**Departamento de Bioquímica, Facultas de Medicina, Universidad de Los Andes, Mérida, Venezuela.

La lesión de Osgood - Schlatter, es una entidad donde ocurre la avulsión parcial de la tuberosidad tibial. Generalmente ocurre en la adolescencia. El tratamiento con Terapia Láser de baja potencia, produce la resolución de la lesión, eliminando la alternativa de la cirugía, en la totalidad de los pacientes.
En el presente trabajo prospectivo, nosotros concluimos en sugerir el uso del láser de baja potencia, y diseñamos un protocolo de tratamiento de éta lesión.
30 pacientes con el diagnóstico de lesión de Osgood - Schlatter, confirmado radiológicamente, fueron seleccionados en el período comprendido entre enero de 1989 y abril de 1999. Quince de ellos (seleccionados al azar) fueron tratados con láser infrarrojo a diodo de AsGa, 904 nm, en forma puntual, en 30 sesiones en días alternos. Los otros 15 (grupo control) fue tratado con medicación.
Se demuestra que el tratamiento con láser de baja potencia, es mucho más efectivo que cualquier otro tratamiento, incluyendo la cirugía, y lo recomendamos para obtener los mejores resultados.



TREATMENT OF MEDIAL AND LATERAL EPICONDYLITIS - TENNIS AND GOLFER¨S ELBOW - WITH LOW LEVEL LASER THERAPY: A MILTICENTER, DOUBLE - BLIND, PLACEBO - CONTROLLED CLINICAL STUDY ON 324 PATIENTS.
Zlatko Simunovic, M.D. F.M.H. (1), Tatjana Trobonjaca, M.D. (2), Zlatko Trobonjaca, M.D. (3).
(1) Pain Clinic, Laser Center, Locarno, Switzerland;
(2) Laser Center, Opatija, Croatia;
(3) Department of Physiology and Immunology, Faculty of Medicine, University of Rijeka, Croatia.

Among the other treatment modalities of medial and lateral epicondylitis, Low Level Laser Therapy (LLLT) has been promoted as highly successful method. The aim of this clinical study was to determine the efficacy of LLLT on medial and lateral epicondylitis using Trigger Points (TPs) and scanning application technique under placebo - controlled conditions in two independent Laser Centers located at Locarno, Switzerland and Opatija, Croatia. Unilateral cases of either type of epicondylitis (n=283) were randomly allocated to one of three treatment groups according to the LLLT technique applied: (1) TPs; (2) scanning; (3) combination of TPs and scanning. Bilateral cases of either type of epicondylitis (n=41) were subject to crossover, placebo-controlled conditions. Laser devices used in all groups of patients were infrared diode laser (GaAlAs) 830 nm continuous wave for treatment of TPs and HeNe 632,8 nm combined with infrared diode laser 904 nm. Puled wave for scanning technique. Treatment outcom was observed and measured according to the following methods: (1) short form McGill's Pain Questionnaire; (2) Visual Analogue Scales; (3) Verbal Rating Scales; (4) Patient's pain diary; and (5) hand dynamometer. The result have demonstrated that total relief of pain with consequently improved functional ability was achieved in 82% of chronic cases all of which were treated by combination of TPs and scanning technique. The current clinical study provides further evidence of the efficacy of LLLT in the management of lateral and medial epicondylitis.



PAIN RELIEF AND LASER THERAPY, THE IMPORTANCE IN SPORTS INJURIES.
KEVIN C. MOORE, THE ROYAL OLDHAM HOSPITAL, OLDHAM, UK.

The patho-physiological effects of acute injury and trauma to the musculo-skeletal system are described with emphasis on both macroscopic and microscopic changes. The process of healing and the various conventional treatment modalities are enumerated.
The experimental evidence supporting the mode of action of Laser Therapy (LT) at both cellular and tissue level are summarized and the effect that LT has in promoting soft tissue repair is described. Currently available literature on the use of LT in sports injury clinics and physical therapy departments is reviewed for a wide range of both acute and chronic conditions and a variety of treatment protocols and regimes are assessed for their efficacy.
It is concluded that LT is valuable addition to the treatment modalities used to treat sporting injuries of the musculo-skeletal system.



EVOLUCION DE UNA QUEMADURA DE TERCER GRADO TRATADA CON LASER DE BAJA POTENCIA.
Luis E. Paolini - Pisani *, Doris E. Paolini *
*INSTITUTO DE MEDICINA INTEGRAL, San Cristóbal, Venezuela

Se presenta una serie fotográfica d la evolución de un caso de quemadura de tercer grado en un niño de cuatro años, tratado únicamente con láser de baja potencia (mezcla de Láser IR a diodo AsGa 904 nm y Láser HeNe 632,8 nm) en forma de scanner.

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