scholarly journals Diode Laser 805 Hair Removal Side Effects in Groups of Various Ethnicities – Cohort Study Results

2020 ◽  
Vol 11 (2) ◽  
pp. 132-137
Author(s):  
Magdalena Atta-Motte ◽  
Izabela Załęska
Keyword(s):  
Statistical Analysis ◽  
Side Effects ◽  
Diode Laser ◽  
Diode Lasers ◽  
Ethnic Origin ◽  
Hair Removal ◽  
Chi Square ◽  
Laser Hair Removal ◽  
Study Results ◽  
The Impact

Introduction: As hair removal has become most popular in aesthetics, the management of its side effects is crucial for every practitioner. Available studies describe the effectiveness of the diode laser hair removal for all skin types according to the Fitzpatrick scale independently, but the question of the occurrence of side effects and adverse effects remains unanswered. This study aims to illustrate aspects of side effects for patients of various ethnicities and the impact of those on the effectiveness of the treatment. Methods: The research was carried out in Poland and the United Kingdom from March 2016 to March 2019. 217 people of various ethnic origins were qualified for the study, 206 sessions were completed and statistical analysis was performed. The procedure was performed in the pubic area with diode lasers with a wavelength of 805 nm, minimum peak power of 2100 W and pulse duration between 15 and 400 ms. ET sapphire cooling assisted handle 9 x 9 mm large and pulse energy density between 10 and 100 J/cm2 were used for all treatments. In addition, in order to illustrate the effectiveness of treatments, the subjective and objective analyses of hair loss percentages were indicated. In statistical analysis, the chi-square test for independence was used to evaluate the correlation between the type and severity of side effects and the ethnic origin of patients, the number of treatments, the Fitzpatrick scale and the level of satisfaction. Results: The occurrence of sensitivity depended statistically significantly (P=0.002) on ethnicity. Ethnicity had no significant effect on the occurrence of erythema. The occurrence of hyperpigmentation statistically significantly depended (P<0.001) on ethnicity. The occurrence of burns depended statistically significantly (P=0.001) on ethnicity. The number of treatments had a significant (P=0.012) effect on the severity of side effects occurrence. Among participants who had 6 treatments, only half had side effects, including multiple effects occurring in 9.79% of cases. The occurrence of side effects such as sensitivity and hyperpigmentation did not depend on the number of treatments. However, the number of treatments had a significant impact on the incidence of erythema (P<0.001) and burns (P=0.005). More than half of the respondents (58.33%) had erythema after more than six procedures, whereas in the 6 treatments the erythema occurred only in 6.7% of cases. Conclusion: The treatment with the use of diode lasers for all subjects with different ethnicity and thus the recognized scale according to Fitzpatrick is effective and safe. The occurring side effects are transient and do not impact the effect of the whole therapy.

scholarly journals Aspects of Diode Laser (805 nm) Hair Removal Safety in a Mixed-Race Group of Patients

2019 ◽  
Vol 10 (2) ◽  
pp. 146-152 ◽  
Author(s):  
Izabela Załęska ◽  
Magdalena Atta-Motte
Keyword(s):  
Side Effects ◽  
Adverse Effects ◽  
Diode Laser ◽  
Skin Reaction ◽  
Skin Irritation ◽  
Mixed Race ◽  
Hair Removal ◽  
Laser Hair Removal ◽  
The Impact ◽  
Treatment Settings

Introduction: Laser hair removal (LHR) has become one of the most popular treatments in aesthetics. Side effects are an inevitable part of laser therapy, therefore managing them is crucial for every laser practitioner to ensure patients’ safety along with achieving the best results. The available references describe the effectiveness of the diode LHR for all skin types according to the Fitzpatrick scale, but the question of patient safety and minimization of side effects and postoperative complications in mixed-race patients remains unanswered. This study aims to illustrate aspects of specific side effects in patients of mixed ethnicity and the impact of those effects on the results of the treatment. Methods: The study was conducted in Poland and the United Kingdom on 216 patients of various ethnic backgrounds. This study analyses the frequency of side effects in a mixed-race group of 32 participants, taking into account their skin type according to the Fitzpatrick scale. The patients received a course of 6 treatments using diode laser 805 nm. An objective and a subjective method were used to analyse treatment results and side effects, with adverse effects documented, if observed. Treatment settings were adjusted to skin reaction during the patch test. Results: Objective analysis was different from the subjective analysis of the treatment’s effectiveness. No adverse effects were observed. Side effects such as hyperpigmentation, skin irritation, skin burns, and skin hypersensitivity were found. Conclusion: 805 nm diode laser is effective and efficient at hair removal in mixed-race patients. It is a safe treatment in terms of skin reaction as only short-term side effects were observed in the treated area and no adverse effects were noted. To achieve the best results and to avoid adverse effects it is necessary to adjust treatment settings according to the individual patient’s skin reaction.

Diode laser hair removal does not interfere with botulinum toxin A treatment against axillary hyperhidrosis

2010 ◽  
Vol 42 (3) ◽  
pp. 211-214 ◽  
Author(s):  
Anna Paul ◽  
Gottfried Kranz ◽  
Andreas Schindl ◽  
Georg S. Kranz ◽  
Eduard Auff ◽  
...  
Keyword(s):  
Botulinum Toxin ◽  
Diode Laser ◽  
Botulinum Toxin A ◽  
Hair Removal ◽  
Axillary Hyperhidrosis ◽  
Toxin A ◽  
Laser Hair Removal

scholarly journals Exploring farmers’ perception on climate-induced events and adaptation practices to protect crop production and livestock farming in Haor area of northeastern Bangladesh

2021 ◽  
Author(s):  
Tasneem Chowdhury Fahim ◽  
Bivuti Bhushan Sikder
Keyword(s):  
Climate Change ◽  
Crop Production ◽  
Coastal Region ◽  
Climate Extremes ◽  
Livestock Farming ◽  
Chi Square ◽  
Study Results ◽  
Tools And Techniques ◽  
Adaptation Practices ◽  
The Impact

Abstract Bangladesh is confronting terrible impacts of climate change on agriculture across the country, especially in the low-lying area like- Haor, coastal region, and islands. This behavioral study (N = 320) examines the perception and knowledge of farmers on climate-induced events and experiences, and explores the adaptation practices they adopt to protect crop production and livestock farming from the impact of climate change in the Northeastern Haor area of the country. Using triangulation method, it is detected that farmers of the study area have erroneous idea on climate change and the causes of frequent climate extremes. Study results show that respondents’ perception and experiences on climate-induced event are verified positively with the historical trend and time-series analysis of climate indicators as well as with the findings of researchers using PRA tools and techniques. This study explores the traditional and systematic adaptation approaches of farmers which are practiced in individual or community level. The rationale of each of the approach from respondents’ side is also analyzed in the study. It is statistically tested using chi-square that some of the scientific and systematic adaptation options for crop production is predominantly influenced by the educational qualifications of the respondents. The study reveals that lack of proper information prevents subsistence farmers to find the most effective adaptation pathways.

scholarly journals A Study on the impact of Coping Strategies over Stress Management – An Empirical Study

2021 ◽  
Vol 12 (3) ◽  
pp. 5566-5573
Author(s):  
Ch.Narahari Et. al.
Keyword(s):  
Statistical Analysis ◽  
Empirical Study ◽  
Stress Management ◽  
Emotional Support ◽  
Positive Emotion ◽  
Software Industry ◽  
Total Sample ◽  
Chi Square ◽  
Chi Square Test ◽  
The Impact

In the present study we analyze the employees’ perception towards coping measures adopted byfirms in software industry. The considered coping constructs adopted for the study in stress abatement areVenting of Emotions,Problem Focused, Seeking Information and emotional support, Positive Emotion-Focused, were, employee perception was acquired by a systematic survey.A total sample of 800 employees’perceptions have been collected through simple random technique and out of which survey respondents, irregular responses are eliminated finally 756 samples are determined for statistical analysis. Chi-square test was performed to determine the association between perceptions and model constructs. Results are reported and discussions are made as per the results and in correlation between results of previous literature.Finally, suggestions and future indication for extension of the study are proposed.

scholarly journals The Impact of Change Management on the Efficiency of Organizations: An Applied Study on the DAL Dairy Factory - Sudan 2019 - 2020

2021 ◽  
Vol 12 (4) ◽  
pp. 1
Author(s):  
Malak S. Hussain
Keyword(s):  
Statistical Analysis ◽  
Change Management ◽  
Organizational Structure ◽  
Significant Relationship ◽  
Chi Square ◽  
Managing Change ◽  
Applied Study ◽  
Research Questions ◽  
The Impact ◽  
Scientific Hypotheses

Objectives: This study aims to know the effect of change in culture and technology on efficiency in Dairy Factory - Sudan, 2019-2020 and to know the views of managers on the impact of change management on efficiency, to identify the positive aspects that help in improving this efficiency as well as to identify the negatives Which limit the company's efficiency in this field, by answering the following research questions: - Is there an impact of changing culture and technology on increasing the efficiency of institutions? To answer these questions on which the problem is centered around, the following scientific hypotheses were put forward: - There is a statistically significant relationship between changing the organization's culture and increasing the efficiency of organizations, as well as the existence of a statistically significant relationship between changing technology in the organization and increasing the efficiency of organizations. Methods: The descriptive and analytical approach was used to describe the phenomenon under study, and the questionnaire was used to collect various data. The questionnaire was distributed to the sample members who numbered (55) employees to conduct the statistical analysis for this study, through the program used for the statistical analysis of social sciences, the hypotheses were tested by Median and chi-square. Finding: inflating the culture of the departments and divisions of the company, the stagnation and inflexibility of the society's culture, and the inadequacy of that culture to the requirements of work within the community, which led to an overlap in the powers and responsibilities? The most important recommendations: The necessity of changing the organizational structure to comply with the requirements of work, after carefully studying the internal and external environment, and for the change to take place based on the recommendations of specialists in administrative sciences. So that it is not random and does not lead to an inflation of the organizational structure without success. Value: The importance of the study stems from the fact that it addresses an important topic in business administration, which is managing change in organizations, which is the only way for these organizations to develop and continue to exist. It also studies the reality of change management in the DAL Dairy Factory - Sudan.

Self-Reported Outcome After Diode Laser Hair Removal

2008 ◽  
Vol 60 (3) ◽  
pp. 233-238 ◽  
Author(s):  
James E. Zins ◽  
Mohammed Alghoul ◽  
Andrea Moreira Gonzalez ◽  
Patricia Strumble
Keyword(s):  
Diode Laser ◽  
Hair Removal ◽  
Laser Hair Removal

scholarly journals Contribution to cultural-geographical research: Possible evaluations of cultural aspects by statistical methods

Geografie ◽  
2005 ◽  
Vol 110 (4) ◽  
pp. 300-314
Author(s):  
Silvie Kuldová
Keyword(s):  
Statistical Analysis ◽  
Statistical Methods ◽  
Regional Identity ◽  
Chi Square ◽  
Geographical Research ◽  
Hard Data ◽  
Cultural Aspects ◽  
The Impact ◽  
One Way Anova ◽  
Statistical Analysis Methods

The aim of this article is to show that an evaluation of cultural aspects does not always mean an operation with "soft", non-quantifiable data. It is possible to refer to cultural variety of regions also with the help of numeric indicators, so-called "hard" data. As an example, differences between the Czech borderland and inland are studied in this article. The used characteristics are the percentage of native persons and number of municipality parts per municipality. Dissimilarity ratio of these indicators in space is evaluated by statistical analysis methods: independent-samples T test, one-way ANOVA, chi-square tests. Component analysis outputs help to complete the findings. Statistically significant differences between the identity of the Czech borderland and inland were proved. The impact of the former Czech-German linguistic boundary on the degree of regional identity of the inhabitants is still sensible.

scholarly journals Quantitative Analysis of Skin Erythema Due to Laser Hair Removal: A Diffusion Optical Spectroscopy Analysis

2019 ◽  
Vol 10 (2) ◽  
pp. 97-103 ◽  
Author(s):  
Mozhdeh Babadi ◽  
Ezeddin Mohajerani ◽  
Leila Ataie-Fashtami ◽  
Nasrin Zand ◽  
Afshan Shirkavand
Keyword(s):  
Side Effects ◽  
Laser Irradiation ◽  
Optical Spectroscopy ◽  
Linear Correlation ◽  
Diffuse Reflectance Spectroscopy ◽  
Wavelength Region ◽  
Hair Removal ◽  
Burn Scar ◽  
Laser Hair Removal ◽  
Before And After

Introduction: Laser hair removal needs an accurate understanding of tissue structure and chromophores content in order to optimize the selection of laser irradiation parameters. None of the optimized laser therapy might lead to side effects in skin tissue such as severe erythema, burn, scar etc. Therefore, guidance by a noninvasive real-time diagnostic method like optical spectroscopy technique is beneficial. The purpose of this survey is to analysis the skin hemoglobin spectrum quantitatively before and after hair removal laser irradiation to minimize the side effects of the procedure. Methods: To carry out a spectroscopy study, a halogen-tungsten light source was used in the wavelength region of 400-700 nm on an ocean optic device. The measurements were made on the facial area under identical conditions. Total 19 volunteers for laser hair removal by gentle laser Candela, ranging 14- 49 years old, were included in the study. A total of 18 spectra were taken from each person, 9 spectra before hair removal as a reference and 9 subsequent spectra. Colorimetry was done for all acquired before and after spectrums using Origin software (version 8.6). Then, the erythema index derived for each spectrum. Statistical analysis of correlation and normalization in colorimetry data were done using data analysis by SPSS (version 16). Results: Spectra analysis, before and after optical reflectance spectrums in laser hair removal procedure, revealed the subpeak derivation, and concentration on special visible wavelength 510- 610 nm. We studied the changes of skin chromophores absorption. The derived erythema index [E] and colorimetry parameters a*, b*, l* were compared and correlated statistically. There was a statistically considerable direct linear correlation between a* and E while inverse linear correlation was observed for l* and E and no correlation for b* and E. Conclusion: Diffuse reflectance spectroscopy showed its potency as an accurate, noninvasive realtime as complementary method for laser treatment to detect erythema as a complication of the method, in order to optimize the parameters based on the tissue characteristics in various candidates.

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