The objective of this study was to determine the efficacy and safety of a novel method of facial rejuvenation using a 2940-nm erbium:YAG laser with Spatially Modulated Ablation™. A pilot study was performed in 16 women with moderate to severe signs of facial aging relative to chronological age, who underwent two treatment sessions with an Er:YAG laser coupled to the RecoSMA™ technology (Linline, Minsk, Belarus). The whole face was treated in all patients. Clinical efficacy, tolerance, adverse effects, complications, and histological changes due to the treatment were evaluated. Clinical photographs and biopsies were taken before treatment and 3 months after the second treatment session. All patients completed the study and presented no significant complications. Histological changes in the epidermis and dermis as a result of treatment were found. Fine lines, wrinkles, and overall facial aging improved significantly (p < 0.0001). The mean reduction of fine lines and wrinkles was 59 % (r = 40-75 %). The mean improvement of overall facial aging was 74 % (r = 55-90 %). After showing the patients the comparative photographs before and after treatment, 75 % of women stated that they were satisfied or very satisfied and would recommend the treatment. Preliminary results show an excellent safety/efficacy profile for this novel technology, which, based on observed results, can be considered to have advantages over other methods of facial rejuvenation with lasers.
Facial aging is a complex biological process that affects the skin and superficial musculoaponeurotic system (SMAS). A new technology (RecoSMA) for skin rejuvenation based on acoustic-interference method using Er:YAG laser (2936 nm) equipped with a special module SMA that targets both the dermis and SMAS was evaluated in an open-label prospective cohort study of 100 female patients treated for facial rejuvenation. Measure of clinical improvement included investigator-rated clinical photography using the Modified Fitzpatrick Wrinkle Scale, and ultrasound measurements in the dermis a week, 30 days and six months post treatment. All patients completed the study and no complications were noted. Improvements in skin tone and texture were noted in all participants and significant decrease in wrinkle depth was demonstrated at the six-month follow-up that was confirmed by ultrasound skin measurements. Data presented herein confirm the safety and efficacy of RecoSMA treatment for facial rejuvenation.
Chronic lower extremity ulcers (CLEUs) have a high prevalence and are difficult to treat due to their various aetiologies. The aim of this study is to evaluate the results achieved in treating CLEUs using an Erbium: YAG (Er:YAG) laser with RecoSMA technology. This laser emits thousands of microbeams of energy causing superficial epidermal ablation and a separation of dermal fibres due to a mechanical-acoustic and resonance effect. The evaluation of the results achieved was carried out by questionnaires completed by 18 patients enrolled in the study. Histological studies and photographs taken before each session (16 sessions in total) were analysed to visually monitor the clinical progress. The analyses were carried out with the help of computer software. The results after 16 treatment sessions showed the complete healing of ulcers or a decrease in their initial area of at least 55% in over 65% of the patients treated. The Student's t-test and Fisher's exact test were used for statistical analysis. The Er:YAG laser and RecoSMA technology ablates few epidermal cell layers, producing a mechanical-acoustic effect with resonance action leading to tissue regeneration mechanisms. This technology offers an effective and safe alternative for treating CLEUs.
ResumenLas úlceras crónicas de los miembros inferiores (UCMI) tienen una elevada prevalencia, etiología diversa y son de difícil curación. El objetivo del presente estudio es evaluar los resultados alcanzados en su curación mediante el empleo de un láser de Erbium:YAG con tecnología RecoSMA. Este láser y sistema de tecnología emite energía en forma de miles de microhaces induciendo microablación de la epidermis y actuación en las células de la dermis por efecto mecánico-acústico.Tratamos con irradiación semanal 17 pacientes durante 3 meses. La evaluación de resultados se realizó mediante cuestionarios y correlación clínica e histológica, realizando fotografías antes de cada sesión de tratamiento (12 en total), y su correspondiente análisis con asistencia de un programa informático.Los resultados mostraron curación completa, o reducción del área de las úlceras en aproximadamente el 50% de su superficie inicial en más del 50% de los pacientes. En el estudio estadístico empleamos t de Student y test exacto de Fisher y obtuvimos resultados estadísticamente significativos, con p<0,05.El láser de Er:YAG y la tecnología RecoSMA basada en ópticas que convierten el haz del láser en miles de microhaces no solamente se absorbe en la superficie del tejido, sino que penetra en la dermis y, por mecanismo mecánico-acústico, produce efectos de resonancia eficaces para producir regeneración tisular. Su empleo en las UCMI de difícil solución es una alternativa de tratamiento eficaz y seguro.Palabras clave Úlceras, Ulceras crónicas miembros inferiores, Láser Erbium,YAG, Tecnología RecoSMA. Nivel de evidencia científica 4 AbstractChronic lower extremity ulcers (CLEU) have a high prevalence, present various aetiologies and are difficult to heal. The aim of the present study is to evaluate the results achieved in healing CLEU using an Erbium:YAG with RecoSMA technology. This laser emits energy in thousands of microbeams causing superficial epidermal ablation by thermal effect, and a limited cell membrane destruction in dermis due to a mechanical-acoustic effect.Evaluation of results achieved was carried out in 17 patients enrolled in the study by questionnaires, histologies and clinical visual correlation of progress by photographs taken before each session (12 session in total), which were analyzed with the help of a computer program.Results after 12 treatment sessions showed complete healing of ulcers or a decrease of their initial area in at least 50% in more than 50% of patients treated. The t Student test and Fishers´ exact test were used for the statistical analysis noticing that results obtained were statistically significant with p<0,05.The Er:YAG laser and RecoSMA technology, based on a system of optics which converts the laser beam in thousands of microbeams, it is not only absorbed in the tissue surface, but penetrates in the dermis. The acoustic-mechanical mechanism produces effective resonance effects to achieve tissue regeneration. This technology used on difficult CLEU offers an effective and safe treatment alternative.
Цель. Изучить возможность регенерации печени у экспериментальных животных с индуцированным циррозом при воздействии микроаблятивным методом при помощи пространственно модулированного из-лучения эрбиевого лазера с длиной волны генерации 2,936 мкм.Материал и методы. В эксперименте на 70 белых беспородных крысах моделировался цирроз печени с помощью тетрахлорметана. Цирротически измененная левая доля печени у каждой крысы обрабатыва-лась с использованием микроаблятивного метода (эрбиевый лазер с длиной волны генерации 2,936 мкм, длительностью импульса 0,3 мкс, с насадкой SMA (space modulated ablation), обеспечивающей простран-ственное распределение энергии в лазерном пучке), правая доля служила контролем. Повторные операции с обработкой печени выполнялись в на 15-е, 30-е, 60-е сутки с последующим выведением из эксперимента и гистологическим исследованием печени.Результаты. После однократной обработки печени крыс пространственно модулированным эрбие-вым лазерным излучением при микроскопии в первые сутки воздействия в печеночной ткани констати-рованы признаки уже имеющегося цирроза печени и на глубину воздействия (от 5,5 до 6,0 мм) выявлены разрушения некоторых гепатоцитов. Начиная с 30-х суток, выявлены признаки регенерации цирротически измененной печени, включая уменьшение количества соединительной ткани и признаков портальной ги-пертензии. При этом указанных признаков регенерации в необработанной лазерным излучением правой доле печени не выявлено. После двукратной обработки печени на 60-е сутки были выявлены неоангио-генез, пролиферация желчных протоков, уменьшение количества ложных долек и соединительнотканных структур, по сравнению с правой долей печени, обработка которой не проводилась.Заключение. Воздействие микроаблятивного метода на цирротически измененную печень вызывает активный процесс регенерации, что в дальнейшем может быть использовано в качестве Bridge-терапии перед трансплантацией печени. Ключевые слова: цирроз печени, высокоэнергетичное лазерное излучение, регенерация печени, транс-плантация печени, соединительная ткань, клеточная пролиферация, Bridge-терапияObjectives. To study the possibility of the liver regeneration with induced cirrhosis using micro-ablative method with spatially modulated erbium laser radiation (wavelength of 2,936 μm) in experimental animals.Methods. In the experiment the liver cirrhosis was modeled in 70 albino outbred rats by means of carbon tetrachloride. Cirrhotically changed left liver lobe was treated by micro-ablation method (erbium laser, wavelength of 2,936 μm, impulse duration of 0,3 ms, packed with SMA (Space Modulated Ablation), the right lobe was a control one. The repeated operations with the treating of the liver have been carried out on the 15 th , 30 th , 60 th days, followed by exclusion from the experiment and histological examination of the liver.Results. After a single treating of the rats' liver with spatially modulated erbium laser radiation at microscopy on the first day of exposure the signs of pre-existing liver cirrhosis in the hepatic tissue so as ...
An open, prospective, nonrandomized study of 122 children with infantile hemangiomas aged 1 to 24 months was conducted to evaluate the effectiveness and safety of treatment with multiline laser equipment using the Nd:YAP Q‐Sw/KTP emitters with the combined use of two wavelengths of 1079/540 nm. The average age of the children was (6.3 ± 0.3) months, 22 of them were boys (18.0%) and 100 were girls (82.0%). An erythometry and ultrasound examination were performed to determine the depth of the neoplasm, to assess its blood flow, and the presence and diameter of the supply vessels. Studies of these indicators were conducted for patients before and after the treatment. Laser treatment was performed on 109 patients with 119 hemangiomas. A total of 81 superficial hemangiomas underwent a short course of laser therapy (2‐5 procedures) and remaining patients with 38 combined hemangiomas received a long course of laser treatment, consisting of 6 to 10 procedures. Restoration of normal color, skin relief, and the absence of scars were noted in post‐treatment sample on evaluation. After the course of treatment, erythometry readings corresponded to the values of normal skin and decreased to 110 to 80 cu. Ultrasound examination showed vascular formation and feed vessels were not visualized.
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