Effects of plant diversity on productivity strengthen over time due to trait-dependent shifts in species overyielding.

Plant diversity effects on community productivity often increase over time. Whether the strengthening of diversity effects is caused by temporal shifts in species-level overyielding (i.e., higher species-level productivity in diverse communities compared with monocultures) remains unclear. Here, using data from 65 grassland and forest biodiversity experiments, we show that the temporal strength of diversity effects at the community scale is underpinned by temporal changes in the species that yield. These temporal trends of species-level overyielding are shaped by plant ecological strategies, which can be quantitatively delimited by functional traits. In grasslands, the temporal strengthening of biodiversity effects on community productivity was associated with increasing biomass overyielding of resource-conservative species increasing over time, and with overyielding of species characterized by fast resource acquisition either decreasing or increasing. In forests, temporal trends in species overyielding differ when considering above- versus belowground resource acquisition strategies. Overyielding in stem growth decreased for species with high light capture capacity but increased for those with high soil resource acquisition capacity. Our results imply that a diversity of species with different, and potentially complementary, ecological strategies is beneficial for maintaining community productivity over time in both grassland and forest ecosystems.

The Fish Bone Technique: An Innovative Approach for the Bony Nasal Pyramid.

Among many contributions to the world of art and science, Renaissance artist Leonardo da Vinci created the technique known as sfumato. In this technique, da Vinci considered that the regions to be highlighted should be lit up, while the regions to be hidden should be darkened. Drawing parallel with the face, we can work on the anatomical structures underlying the skin and create a favorable surface anatomy for the entire face, including the nose. However, to achieve the ideal hourglass shape of the nose, the bones must be shaped, and a variety of osteotomies are described and used to achieve this. The new and innovative Fish Bone technique, described in this article, allows for the bony nasal pyramid to be shaped and adapted to the hourglass shape, resulting in a harmonious contour, with smooth transitions and preservation airway.

Interleukin 6 and Interleukin 1ß hypomethylation and overexpression are common features of apical periodontitis: A case-control study with gingival tissue as control.

OBJECTIVES: Apical periodontitis is a periradicular tissue disorder that usually arises from infection by microorganisms in the root canal system resulting in local bone resorption. This usually involves the dysregulation of inflammatory mediators, which can be mediated by epigenetic mechanisms. Thus, the objective of this study was to evaluate Interleukin 6 (IL6) and Interleukin 1ß (IL1ß) and DNA methylation and gene expression levels in apical periodontitis. METHODS: Gene expression was analyzed in 60 participants using quantitative polymerase chain reaction, while the methylation levels of IL6 and IL1ß promoters were analyzed in 72 patients using pyrosequencing. All statistical analyzes were performed using the GraphPad Prism software version 8.0. The p value was considered statistically significant when < 0.05. RESULTS: A significantly higher IL6 and IL1ß expression levels were observed in cases relative to controls (fold-changes of 27.4 and 11.43, respectively, and p < 0.0001). By comparing the same groups, lower promoter methylation levels were observed for both genes in cases (methylation percentage delta relative to controls of -24.57% and -16.02%, respectively, and p < 0.0001). A significant inverse correlation between gene expression and promoter methylation was observed for both IL6 (p = 0.0002) and IL1ß (p = 0.001). Neither IL6 expression nor promoter methylation were significantly associated with cases' age, smoking history, alcohol consumption history or sex. For IL1ß, alcoholic cases showed lower methylation level relative to non-alcoholic cases (p = 0.01), while females showed higher methylation levels relative to males (p = 0.03). CONCLUSIONS: Our data suggest a role for DNA methylation in IL6 and IL1ß upregulation in apical periodontitis.

The effects of low-level laser in the treatment of myofascial pain syndrome: systematic review / Os efeitos do laser de baixa intensidade no tratamento da síndrome da dor miofascial: revisão sistemática

ABSTRACT BACKGROUND AND OBJECTIVES: Among the approaches inherent to conservative treatment, the low-level laser therapy (LLLT) is one of the most used resources in the treatment of myofascial pain. This research sought to search the literature for the available evidence on the treatment of myofascial pain syndrome with LLLT in order to analyze the reported effects of this intervention. CONTENTS: Medline/PubMed, SCOPUS, Web of Science, Cochrane Central Registry of Controlled Trials (CENTRAL) and the Cumulative Index to Nursing and Allied Health Literature (CINAHL) by Ebsco was used to search for articles on randomized clinical trials that related myofascial pain syndrome with LLLT. Studies were systematically selected by two reviewers independently, through title, abstract and, later, full text. Ten articles that met the criteria were included in this integrative review. In six of these articles, the improvement in pain compared to placebo group was presented right after LLLT session, although these results did not remain in the follow-ups of the studies that performed follow ups. CONCLUSION: LLLT seems to be a resource that decreases pain in patients with myofascial pain syndrome. Despite the positive results in reducing pain with the use of LLLT in some studies, this review admits the heterogeneity of studies with conficting results related to the effectiveness of LLLT. Research that defines the parameters and adequate therapeutic dosages are necessary for a better understanding of the real effects of LLLT on this clinical condition.

RESUMO JUSTIFICATIVA E OBJETIVOS: Das abordagens inerentes ao tratamento conservador, o laser de baixa intensidade (LBI) é um dos recursos mais utilizados no tratamento da dor miofascial. Esta pesquisa buscou avaliar na literatura as evidências disponíveis sobre o tratamento da síndrome da dor miofascial com o LBI para analisar os efeitos reportados dessa intervenção. CONTEÚDO: Foram utilizadas as bases de dados Medline/Pubmed, SCOPUS, Web of Science, Registro Central Cochrane de Ensaios Controlados (CENTRAL) e Cumulative Index to Nursing and Allied Health Literature (CINAHL), da Ebsco, para busca de artigos de ensaios clínicos randomizados que relacionassem síndrome da dor miofascial com LBI. Os estudos foram selecionados sistematicamente por dois revisores, independentemente, por meio do título, resumo e, posteriormente, texto completo. Dez artigos que se adequaram aos critérios foram incluídos nessa revisão sistemática. Em seis destes artigos, foi apresentada a melhora da dor comparada ao grupo placebo logo após a sessão de LBI, embora esses resultados não tenham permanecido nos acompanhamentos dos estudos que realizaram follow-ups. CONCLUSÃO: O LBI parece ser um recurso que diminui a dor em pacientes com síndrome da dor miofascial. Apesar dos resultados positivos na diminuição da dor com o uso do LBI em alguns estudos, esta análise admite a heterogeneidade dos estudos com resultados conflitantes relacionados à efetividade do LBI. Pesquisas que definam os parâmetros e dosagens terapêuticas adequadas são necessárias para um melhor entendimento sobre os reais efeitos do LBI sobre essa condição clínica.

Effects of insoles adapted in flip-flop sandals for persistent heel pain: a protocol for a sham-controlled randomised trial.

INTRODUCTION: Persistent heel pain is a prevalent complaint affecting up to 10% of the population. Insoles adapted in flip-flop sandals are an alternative treatment for pain and function of individuals with persistent heel pain, showing improvement within 12 weeks of treatment. Most studies considered foot posture and biomechanics to prescribe insoles for persistent heel pain, but few verified the effects of a 12-week treatment on pain catastrophising. This study will investigate the effects of insoles adapted in flip-flop sandals on pain intensity, function, functional walking capacity and pain catastrophising of individuals with persistent heel pain. METHODS AND ANALYSIS: This is a protocol for a sham-controlled randomised trial. Eighty individuals with persistent heel pain will be assessed and randomised into two intervention groups: insoles adapted in flip-flop sandals and flip-flop sandals with sham (ie, flat) insoles. Assessments will be conducted at baseline (T0), after 6 weeks (T6), 12 weeks postintervention (T12) and after a 4-week follow-up (T16). The primary outcome will be the pain intensity, and secondary outcomes will be foot function, functional walking capacity and pain catastrophising. Analysis of variance with mixed design (if normal distribution) or Friedman's test (if not normal distribution) will verify intergroup and intragroup differences. Bonferroni post hoc tests will be performed in case of significant group or time interaction. Intent-to-treat analysis will be used, and a significance level of 5% and 95% CIs will be considered. ETHICS AND DISSEMINATION: This study was approved by the research ethics committee of the Federal University of Rio Grande do Norte (registry no. 4,018,821). Results will be disseminated to individuals, submitted to a peer-reviewed journal and disclosed in scientific meetings. TRIAL REGISTRATION NUMBER: NCT04784598.

Exercise dependence, body dismorphia, and anxiety in crossfit practitioners: A cross-sectional study.

INTRODUCTION: Physical exercise provides better body image perception and well-being. However, if practiced compulsively, it may lead to compulsion and psychobiological damage. CrossFit is a method aiming at maximum performance, and it is currently attracting many regular practitioners. OBJECTIVE: Evaluate exercise dependence prevalence, muscle dysmorphia, and trait-state anxiety in CrossFit practitioners. METHODS: One hundred fifty regular male CrossFit practitioners were evaluated and subdivided into two groups: with and without risk for exercise dependence. Trait-state anxiety and muscle dysmorphia were also assessed. Unpaired t-test compared groups, Fisher's exact test was used for associations between categorical variables (p < 0.05), while correlations were verified using Pearson's correlation coefficient. RESULTS: 122 participants were identified with no risk for exercise dependence and 28 with risk for exercise dependence. Participants presented mean age of 30.3 ± 7.05 years and had been practicing physical exercise for 8.02 ± 8.1 years, with training frequency of 5.3 ± 1.09 days per week and 107.9 ± 50.5 min per training day. Prevalence risk of exercise dependence was 18.6%, and muscle dysmorphia was significantly different between groups with (10.7%, n = 3) and without risk (6.6%, n = 8) for exercise dependence. Participants with risk for dependence chose CrossFit mainly due to appearance (32%). CONCLUSION: Prevalence risk of exercise dependence was 18.6% and satisfaction with muscle appearance may influence exercise behavior.

Prevalence of musculoskeletal complaints and quality of life among administrative technicians.

BACKGROUND: Work-related musculoskeletal disorders comprise muscle, tendon, synovial, nerve, fascial and ligament injuries alone or combined, with a proven or not relationship with work. They manifest as pain, paresthesia, feeling of heaviness and fatigue, and may cause temporary or permanent incapacity for work. OBJECTIVE: To establish the prevalence of musculoskeletal symptoms and quality of life of administrative technicians at a public institution who used computers at work for 5 years. METHODS: The sample comprised 70 administrative technicians aged 20 to 69 who used computers at work for 5 years. We analyzed the prevalence of musculoskeletal complaints by means of the Nordic Musculoskeletal Questionnaire and quality of life with SF-36. Interviews were performed in the workplace. The data were analyzed with SPSS 20.0 and the significance level was set to 5%. RESULTS: SF-36 domain scores were considered satisfactory for all the participants. Prevalence of pain in the past 7 days (70%) and past 12 months (77.1%) was high. The lower back was the body site most frequently involved (38.6%). CONCLUSION: The prevalence of pain in several body sites was high among the analyzed administrative technicians. Pain might interfere with their work and lead to sick leave spells. Clinical assessments and interventions are needed to minimize this problem.

INTRODUÇÃO: Os distúrbios osteomusculares relacionados ao trabalho (DORT) são afecções de músculos, tendões, sinóvias, nervos, fáscias e ligamentos isoladas ou combinadas associados, comprovadamente ou não, ao trabalho. Caracterizam-se pela ocorrência de sintomas como dor, parestesia, sensação de peso e fadiga e são causa de incapacidades laborais temporárias ou permanentes. OBJETIVO: Investigar a prevalência de sintomas osteomusculares em técnicos administrativos de uma instituição federal que desempenharam atividade informatizada nos últimos cinco anos, bem como a qualidade de vida. METODOLOGIA: Participaram do estudo 70 técnicos administrativos que desempenhavam trabalho informatizado havia pelo menos cinco anos, com idade entre 20 e 69 anos. Buscou-se avaliar a prevalência de sintomas osteomioarticulares, por meio do Questionário Nórdico de Sintomas Osteomusculares, e a qualidade de vida, pelo Short Form Health Survey 36 (SF-36). As entrevistas foram realizadas no local de trabalho, e os dados, analisados no Statistical Package for the Social Sciences (20.0), com nível de significância de 5%. RESULTADOS: Os resultados obtidos mostraram que os sujeitos apresentaram valores conforme o considerado normal para todos os domínios do SF-36 e alta prevalência de dor nos últimos sete dias (70%) e nos últimos 12 meses (77,1%), sendo a coluna lombar a região mais afetada, com 38,6%. CONCLUSÃO: Trabalhadores técnicos administrativos desempenhando trabalho informatizado apresentam altos índices de presença do episódio dor em diferentes regiões corporais, podendo interferir na produção do trabalho e levar ao afastamento da atividade. Logo, faz-se necessário que se realizem avaliações clínicas e futuras intervenções para minimizar essas alterações.

Association of DNA sequence-independent genetic regulatory mechanisms with apical periodontitis: A scoping review.

OBJECTIVE: Different studies in the last decade have proposed that gene expression alterations that are independent of the DNA sequence may also play an important role in periapical disease. The present study aimed to assess the available evidence supporting a relationship between these alterations and apical periodontitis through a scoping review. DESIGN: Specific strategies were developed for different databases (MEDLINE via PubMed, Cochrane Library, Scopus, Web of Science, and Virtual Health Library) and a search performed by March 1st, 2019. The evidence sources were selected according to the eligibility criteria and underwent a critical appraisal of methodological quality. RESULTS: The initial search retrieved 212 references, with eight eligible articles after the removal of replicates and application of exclusion criteria. Five studies identified altered DNA methylation on inflammatory response genes (FOXP3, CXCL3, FADD, MMP2, MMP9, IFNG, IL4, IL12) on AP patients. Three others identified the alterations on the expression of several microRNAs (miR-29b, 106b, 125b, 143, 146a, 155, 198) during AP. No evidence was identified regarding mechanisms of histone methylation, or of epigenetic heritability or stability. CONCLUSIONS: There is available evidence for the involvement of different genetic regulatory mechanisms independent of changes in DNA sequence in the development or severity of apical periodontitis. However, due to methodological limitations, further research must be performed before novel therapies and diagnostic tools for AP may arise from these data.

Prevalência de sintomas osteomusculares e qualidade de vida de trabalhadores técnicos administrativos / Prevalence of musculoskeletal complaints and quality of life among administrative technicians

Introdução: Os distúrbios osteomusculares relacionados ao trabalho (DORT) são afecções de músculos, tendões, sinóvias, nervos, fáscias e ligamentos isoladas ou combinadas associados, comprovadamente ou não, ao trabalho. Caracterizam-se pela ocorrência de sintomas como dor, parestesia, sensação de peso e fadiga e são causa de incapacidades laborais temporárias ou permanentes. Objetivo: Investigar a prevalência de sintomas osteomusculares em técnicos administrativos de uma instituição federal que desempenharam atividade informatizada nos últimos cinco anos, bem como a qualidade de vida. Metodologia: Participaram do estudo 70 técnicos administrativos que desempenhavam trabalho informatizado havia pelo menos cinco anos, com idade entre 20 e 69 anos. Buscou-se avaliar a prevalência de sintomas osteomioarticulares, por meio do Questionário Nórdico de Sintomas Osteomusculares, e a qualidade de vida, pelo Short Form Health Survey 36 (SF-36). As entrevistas foram realizadas no local de trabalho, e os dados, analisados no Statistical Package for the Social Sciences (20.0), com nível de significância de 5%. Resultados: Os resultados obtidos mostraram que os sujeitos apresentaram valores conforme o considerado normal para todos os domínios do SF-36 e alta prevalência de dor nos últimos sete dias (70%) e nos últimos 12 meses (77,1%), sendo a coluna lombar a região mais afetada, com 38,6%. Conclusão: Trabalhadores técnicos administrativos desempenhando trabalho informatizado apresentam altos índices de presença do episódio dor em diferentes regiões corporais, podendo interferir na produção do trabalho e levar ao afastamento da atividade. Logo, faz-se necessário que se realizem avaliações clínicas e futuras intervenções para minimizar essas alterações.

Background: Work-related musculoskeletal disorders comprise muscle, tendon, synovial, nerve, fascial and ligament injuries alone or combined, with a proven or not relationship with work. They manifest as pain, paresthesia, feeling of heaviness and fatigue, and may cause temporary or permanent incapacity for work. Objective: To establish the prevalence of musculoskeletal symptoms and quality of life of administrative technicians at a public institution who used computers at work for 5 years. Methods: The sample comprised 70 administrative technicians aged 20 to 69 who used computers at work for 5 years. We analyzed the prevalence of musculoskeletal complaints by means of the Nordic Musculoskeletal Questionnaire and quality of life with SF-36. Interviews were performed in the workplace. The data were analyzed with SPSS 20.0 and the significance level was set to 5%. Results: SF-36 domain scores were considered satisfactory for all the participants. Prevalence of pain in the past 7 days (70%) and past 12 months (77.1%) was high. The lower back was the body site most frequently involved (38.6%). Conclusion: The prevalence of pain in several body sites was high among the analyzed administrative technicians. Pain might interfere with their work and lead to sick leave spells. Clinical assessments and interventions are needed to minimize this problem.

Chest wall volume and asynchrony in stroke and Parkinson's disease subjects: A case-control study.

BACKGROUND: The expansion of the rib cage and abdomen occurs in a synchronic way during a coordinated contraction of the diaphragm and the abdominal and intercostal muscles under normal conditions and healthy. The presence of restrictive respiratory disease may lead to uncoordinated action of the respiratory muscles which affects breathing pattern and chest wall volumes. The aim of this study was to evaluate chest wall volumes, chest wall asynchrony and inspiratory paradoxical movement of breathing, as well as the influence of the time of disease diagnosis in subjects with Parkinson's disease and post-Stroke in comparison to healthy individuals. METHODS: Total and compartmental chest wall volumes, chest wall asynchrony and paradoxical movement were measured at rest in a seated position by Optoelectronic Plethysmography in 76 individuals (29 healthy individuals, 20 post-Stroke and 27 Parkinson's disease subjects). Post-stroke and Parkinson's disease subjects were also grouped according to the length of diagnosis. RESULTS: In both groups with restrictive respiratory disease we observed that pulmonary rib cage compartment (VRCp) volume is reduced when compared to healthy subjects (p <0.05). This same pattern was observed when analyzing post-stroke subjects with more than three years of diagnosis and Parkinson's subjects with less than three years of diagnosis (p<0.05). Furthermore, post-stroke subjects with inspiratory paradoxical movement showed decreased total and compartmental chest wall volumes (p<0.05), while individuals with Parkinson's disease with inspiratory paradoxical movement only presented a decrease in pulmonary rib cage compartment volume (p<0.05). CONCLUSION: Our study presents new findings for better understanding of chest wall volumes and chest wall asynchrony in post-stroke and Parkinson's disease individuals. Half of the subjects with post-Stroke and Parkinson's disease presented inspiratory paradox movement, but changes in breathing pattern was especially observed in post-stroke subjects with more than three years of diagnosis.

Acute effects of three pulmonary reexpansion modalities on thoracoabdominal motion of healthy subjects: Randomized crossover study.

BACKGROUND: Chest physiotherapy can be an alternative to increase lung volumes through pulmonary expansion therapies, but there is still inconsistency in the literature in order to determine which device can promote a greater volume increase at the expense of a better ventilatory pattern. Therefore, the aim of this study was to evaluate and compare the chest wall kinematics of healthy subjects submitted to the use of three different devices for pulmonary reexpansion. METHODS: Chest wall compartmental and operational volumes, breathing pattern and thoracoabdominal asynchrony were evaluated in 12 healthy individuals through optoelectronic plethysmography during quiet breathing, pulmonary reexpansion and recovery. Three different devices (volume-oriented incentive spirometer-IS-v; positive expiratory pressure-PEP; and incentive spirometer volume and pressure oriented-IS-vp) were administered in a random order with at least 48h between the devices. RESULTS: A greater volume variation in the chest wall and its compartments was observed when the IS-vp was used in comparison with the other devices (p<0.05). Furthermore, the IS-vp mobilizes a greater amount of volume accompanied by greater synchronism between the compartments when compared to IS-v (p <0.05). CONCLUSION: The IS-vp may be able to increase total and compartmental chest wall volumes, as well as improve synchrony among compartments when compared to IS-v and PEP devices, thus constituting an important tool for treating patients with restrictive ventilatory pattern.

Embolism resistance drives the distribution of Amazonian rainforest tree species along hydro-topographic gradients.

Species distribution is strongly driven by local and global gradients in water availability but the underlying mechanisms are not clear. Vulnerability to xylem embolism (P50 ) is a key trait that indicates how species cope with drought and might explain plant distribution patterns across environmental gradients. Here we address its role on species sorting along a hydro-topographical gradient in a central Amazonian rainforest and examine its variance at the community scale. We measured P50 for 28 tree species, soil properties and estimated the hydrological niche of each species using an indicator of distance to the water table (HAND). We found a large hydraulic diversity, covering as much as 44% of the global angiosperm variation in P50 . We show that P50 : contributes to species segregation across a hydro-topographic gradient in the Amazon, and thus to species coexistence; is the result of repeated evolutionary adaptation within closely related taxa; is associated with species tolerance to P-poor soils, suggesting the evolution of a stress-tolerance syndrome to nutrients and drought; and is higher for trees in the valleys than uplands. The large observed hydraulic diversity and its association with topography has important implications for modelling and predicting forest and species resilience to climate change.

The role of nurse successional stages on species-specific facilitation in drylands: Nurse traits and facilitation skills.

Plant establishment is a challenge in semiarid environments due to intense and frequent drought periods. The presence of neighboring trees (nurses) can increase the establishment of seedlings (targets) by improving resource availability and microclimate. The nurse effect, however, might vary depending on nurse-target species combinations but factors that predict this specificity are poorly known. We used a multispecies experiment to investigate the facilitation potential of trees from a range of successional stages, focusing on how nurse functional traits can predict species-specific interaction outcomes. We conducted a factorial field experiment in a Brazilian semiarid tropical forest during a severe drought period. Sixty pairs of interacting tree species, 20 potential nurses, and three targets were used. Seedlings of all targets were planted both under and far from the nurse canopy, in a randomized block design replicated five times. Target growth and survival were monitored for 275 days from the beginning of the dry season, and interaction outcomes were calculated using the Relative Interaction Intensity (RII) index. Nurse functional traits such as successional stage, height, wood density, and canopy diameter were used as explanatory variables to predict RII values. The average effect of nurse species on target plants was in general positive, that is, seedling survival and growth increased under the nurse canopy. However, for growth pairwise interactions were significantly species specific. Successional stage was the only functional trait explaining RII values, with pioneer tree species being stronger facilitators than later successional trees. However, the explanation power of this variable was low, and positive, negative, or neutral interactions were found among nurse trees of all successional stages. Because seedling mortality during drought in semiarid systems is high, future studies should investigate how nurse traits related to water use could influence nurse facilitation skills.

Objective assessment of surgical technique in rotation and nasal projection variation / Avaliação objetiva da técnica cirúrgica na variação da rotação e projeção nasal

ABSTRACT INTRODUCTION: In rhinoplasty, facial esthetic analysis is critical for proper surgical planning. Parameters such as rotation and nasal projection should be routinely evaluated. Few studies have objectively assessed changes in facial angles postoperatively. OBJECTIVE: To evaluate the effectiveness of medial intercrural sutures and of rotation of the nasal tip on the increase of rotation and nasal projection in Caucasian patients undergoing primary rhinoplasty. METHODS: A prospective study carried out between 2011 and 2013, with 27 patients treated with primary rhinoplasty with a basic technique by the same surgeon, with medial intercrural sutures and rotation of the nasal tip. Rotation and nasal projection were measured from photographs obtained preoperatively and after 12 months. RESULTS: All 27 patients completed the study. The mean age was 27.1 years. There was a mean increase of 8.4° in the rotation - a statistically significant value. There was no significant change in the projection. CONCLUSION: The medial intercrural and nasal tip rotation sutures are effective in increasing nasal rotation in Caucasian patients undergoing rhinoplasty.

RESUMO INTRODUÇÃO: Na rinoplastia, a análise estética facial é essencial para um planejamento cirúrgico adequado. Parâmetros como rotação e projeção nasal devem ser rotineiramente avaliados. Há poucos estudos que avaliem objetivamente as mudanças nos ângulos faciais no pós-operatório. OBJETIVO: Avaliar a eficácia das suturas intercrura mediais e de rotação da ponta nasal no aumento da rotação e projeção nasal em pacientes caucasianos submetidos à rinoplastia primária. MÉTODO: Estudo prospectivo realizado entre 2011 e 2013, com 27 pacientes submetidos à rinoplastia primária técnica básica, pelo mesmo cirurgião, com suturas intercrura mediais e de rotação da ponta nasal. Mediu-se a rotação e a projeção nasal a partir de fotografias no pré-operatório e 12 meses após. RESULTADOS: Todos os 27 pacientes completaram o estudo. A idade média foi de 27,1 anos. Houve aumento médio de 8,4° na rotação, com significância estatística. Não houve alteração significativa na projeção. CONCLUSÃO: As suturas intercrura mediais e de rotação da ponta nasal são eficazes no aumento da rotação nasal em pacientes caucasianos submetidos à rinoplastia.

Objective assessment of surgical technique in rotation and nasal projection variation.

INTRODUCTION: In rhinoplasty, facial esthetic analysis is critical for proper surgical planning. Parameters such as rotation and nasal projection should be routinely evaluated. Few studies have objectively assessed changes in facial angles postoperatively. OBJECTIVE: To evaluate the effectiveness of medial intercrural sutures and of rotation of the nasal tip on the increase of rotation and nasal projection in Caucasian patients undergoing primary rhinoplasty. METHODS: A prospective study carried out between 2011 and 2013, with 27 patients treated with primary rhinoplasty with a basic technique by the same surgeon, with medial intercrural sutures and rotation of the nasal tip. Rotation and nasal projection were measured from photographs obtained preoperatively and after 12 months. RESULTS: All 27 patients completed the study. The mean age was 27.1 years. There was a mean increase of 8.4° in the rotation - a statistically significant value. There was no significant change in the projection. CONCLUSION: The medial intercrural and nasal tip rotation sutures are effective in increasing nasal rotation in Caucasian patients undergoing rhinoplasty.

Prospective study of the surgical techniques used in primary rhinoplasty on the caucasian nose and comparison of the preoperative and postoperative anthropometric nose measurements.

Introduction The knowledge and study of surgical techniques and anthropometric measurements of the nose make possible a qualitative and quantitative analysis of surgical results. Objective Study the main technique used in rhinoplasty on Caucasian noses and compare preoperative and postoperative anthropometric measurements of the nose. Methods A prospective study with 170 patients was performed at a private hospital. Data were collected using the Electronic System Integrated of Protocols software (Sistema Integrado de Protocolos Eletrônicos, SINPE©). The surgical techniques used in the nasal dorsum and tip were evaluated. Preoperative and 12-month follow-up photos as well as the measurements compared with the ideal aesthetic standard of a Caucasian nose were analyzed objectively. Student t test and standard deviation test were applied. Results There was a predominance of endonasal access (94.4%). The most common dorsum technique was hump removal (33.33%), and the predominance of sutures (24.76%) was observed on the nasal tip, with the lateral intercrural the most frequent (32.39%). Comparison between preoperative and postoperative photos found statistically significant alterations on the anthropometric measurements of the noses. Conclusion The main surgical techniques on Caucasian noses were evaluated, and a great variety was found. The evaluation of anthropometric measurements of the nose proved the efficiency of the performed procedures.

Prospective Study of the Surgical Techniques Used in Primary Rhinoplasty on the Caucasian Nose and Comparison of the Preoperative and Postoperative Anthropometric Nose Measurements

Introduction The knowledge and study of surgical techniques and anthropometric measurements of the nose make possible a qualitative and quantitative analysis of surgical results. Objective Study the main technique used in rhinoplasty on Caucasian noses and compare preoperative and postoperative anthropometric measurements of the nose. Methods A prospective study with 170 patients was performed at a private hospital. Data were collected using the Electronic System Integrated of Protocols software (Sistema Integrado de Protocolos Eletrônicos, SINPE(c)). The surgical techniques used in the nasal dorsum and tip were evaluated. Preoperative and 12-month follow-up photos as well as the measurements compared with the ideal aesthetic standard of a Caucasian nose were analyzed objectively. Student t test and standard deviation test were applied. Results There was a predominance of endonasal access (94.4%). The most common dorsum technique was hump removal (33.33%), and the predominance of sutures (24.76%) was observed on the nasal tip, with the lateral intercrural the most frequent (32.39%). Comparison between preoperative and postoperative photos found statistically significant alterations on the anthropometric measurements of the noses. Conclusion The main surgical techniques on Caucasian noses were evaluated, and a great variety was found. The evaluation of anthropometric measurements of the nose proved the efficiency of the performed procedures. .

Electronic data collection for the analysis of surgical maneuvers on patients submitted to rhinoplasty

Introduction: In the health field, computerization has become increasingly necessary in professional practice, since it facilitates data recovery and assists in the development of research with greater scientific rigor. Objective: the present work aimed to develop, apply, and validate specific electronic protocols for patients referred for rhinoplasty. Methods: The prospective research had 3 stages: (1) preparation of theoretical data bases; (2) creation of a master protocol using Integrated System of Electronic Protocol (SINPE©); and (3) elaboration, application, and validation of a specific protocol for the nose and sinuses regarding rhinoplasty. Results: After the preparation of the master protocol, which dealt with the entire field of otorhinolaryngology, we idealized a specific protocol containing all matters related to the patient. In particular, the aesthetic and functional nasal complaints referred for surgical treatment (i.e., rhinoplasty) were organized into 6 main hierarchical categories: anamnesis, physical examination, complementary exams, diagnosis, treatment, and outcome. This protocol utilized these categories and their sub-items: finality; access; surgical maneuvers on the nasal dorsum, tip, and base; clinical evolution after 3, 6, and 12 months; revisional surgery; and quantitative and qualitative evaluations. Conclusion: The developed electronic-specific protocol is feasible and important for information registration from patients referred to rhinoplasty...

Electronic data collection for the analysis of surgical maneuvers on patients submitted to rhinoplasty.

INTRODUCTION: In the health field, computerization has become increasingly necessary in professional practice, since it facilitates data recovery and assists in the development of research with greater scientific rigor. OBJECTIVE: the present work aimed to develop, apply, and validate specific electronic protocols for patients referred for rhinoplasty. METHODS: The prospective research had 3 stages: (1) preparation of theoretical data bases; (2) creation of a master protocol using Integrated System of Electronic Protocol (SINPE(©)); and (3) elaboration, application, and validation of a specific protocol for the nose and sinuses regarding rhinoplasty. RESULTS: After the preparation of the master protocol, which dealt with the entire field of otorhinolaryngology, we idealized a specific protocol containing all matters related to the patient. In particular, the aesthetic and functional nasal complaints referred for surgical treatment (i.e., rhinoplasty) were organized into 6 main hierarchical categories: anamnesis, physical examination, complementary exams, diagnosis, treatment, and outcome. This protocol utilized these categories and their sub-items: finality; access; surgical maneuvers on the nasal dorsum, tip, and base; clinical evolution after 3, 6, and 12 months; revisional surgery; and quantitative and qualitative evaluations. CONCLUSION: The developed electronic-specific protocol is feasible and important for information registration from patients referred to rhinoplasty.

Estreitamento da base nasal no nariz caucasiano através da técnica de cerclagem / Nasal base narrowing of the caucasian nose through the cerclage technique

Introdução: Diversas técnicas podem ser realizadas para diminuir a base nasal (estreitamento), como ressecção de pele vestibular, ressecção de pele columelar, ressecção de pele em elipse do bordo narinário, descolamentos e avançamentos de pele (técnica V-Y de Berstein) e o uso de suturas na cerclagem da base nasal. Objetivo: Avaliar a técnica de cerclagem realizada na base nasal, através de rinosseptoplastia endonasal por técnica básica sem delivery, no nariz caucasiano, diminuindo a distância inter-alar e corrigindo o alar flare com consequente melhora da harmonia nasal no conjunto facial. Método: Realizado estudo retrospectivo através da análise das fotos e documentos clínicos de 43 pacientes, nos quais foi confeccionada a cerclagem da base nasal, através da ressecção de pele em elipse da região do vestíbulo e base nasal (técnica de Weir modificada), utilizando-se fio mononylon® incolor 4"0" com agulha reta cortante. O estudo foi realizado nos anos de 2008 e 2009 no Hospital Instituto Paranaense de Otorrinolaringologia - IPO em Curitiba-Paraná, Brasil. Os pacientes tiveram um follow up que variou de 7 a 12 meses. Resultados: Em 100% dos casos foi atingida uma melhora na harmonia nasal, através da diminuição da distância inter-alar. Conclusão: A cerclagem associada a ressecção mínima de pele vestibular e da base nasal é um método eficaz para o estreitamento da base nasal no nariz caucasiano, com resultados previsíveis e de fácil realização.

Introduction: Several techniques can be performed to reduce the nasal base (narrowing), as skin resection vestibular columellar skin resection, resection of skin in elliptical lip narinary, sloughing of skin and advancements (VY technique of Bernstein) and the use of cerclage sutures in the nasal base. Objective: To evaluate the technique of cerclage performed in the nasal base, through endonasal rhinoplasty without delivery of basic technique, in the Caucasian nose, reducing the distance inter-alar flare and correcting the wing with consequent improvement in nasal harmony in the whole face. Methods: A retrospective analysis by analysis of clinical documents and photos of 43 patients in whom cerclage was made of the nasal base by resecting skin ellipse in the region of the vestibule and the nasal base (modified technique of Weir) using colorless mononylon® 4 "0" with a straight cutting needle. The study was conducted in 2008 and 2009 at Hospital of Paraná Institute of Otolaryngology - IPO in Curitiba, Parana - Brazil. Patients had a follow up ranging 7-12 months. Results: In 100% of cases was achieved an improvement in nasal harmony, by decreasing the inter-alar distance. Conclusion: The encircling with minimal resection of vestibular skin and the nasal base is an effective method for the narrowing of the nasal base in the Caucasian nose, with predictable results and easy to perform.