INTRODUÇÃO: O tratamento para o câncer de cabeça e pescoço (CCP) envolve várias estruturas e tecido linfático que estão sob risco de prejuízo pelo tratamento cirúrgico e/ou radio-quimioterápico. O linfedema secundário externo e interno de cabeça e pescoço é sequela importante, ainda que subdiagnosticada, subtratada e subvalorizada e, em muitos casos, com impacto nas funções de respiração, deglutição e voz. OBJETIVO: Avaliar a presença, estadiamento e características do edema facial, cervical e laríngeo, a deglutição, após o tratamento para o câncer de cabeça e pescoço. MÉTODOS: O estudo utilizou as Escalas do MD Anderson Cancer Center (MDACC) para avaliar e estadiar o linfedema externo de face e pescoço e a Escala do Edema da Radioterapia de Patterson et al. para o edema interno faringolaríngeo após um mínimo de três meses de tratamento para o CCP, no Serviço de Cirurgia de Cabeça e Pescoço do Hospital das Clínicas da FMUSP e do ICESP. A deglutição foi avaliada por meio de videoendoscopia da deglutição (VED) nas consistências de líquido, néctar, pastoso e sólido. RESULTADOS: O linfedema foi detectado em 97,8% das avaliações com predomínio do tipo composto (73,9%). Foram detectados percentual alto de linfedema externo de pescoço (71,7%) e submandibular (63%), com predomínio para os níveis mais avançados (2 e 3) indicando tendência à fibrose. Encontrou-se edema interno em quase todas as estruturas e espaços avaliados. À VED, observou-se resíduo, penetração em todas as cosnistências analisadas. O tratamento combinado com Rt teve relação com o linfedema externo submandibular e pescoço, interno, bem como com a alteração de sensibilidade faringolaríngea, presença de resíduo e penetração para pastoso. CONCLUSÃO: O linfedema cervicofacial e faringolaríngeo é um evento frequente após o tratamento para o CCP, com consequências importantes no desempenho da deglutição caracterizadas por resíduo e levar à penetração e aspiração. O tratamento combinado com Rt é um fator associado a estas alterações / BACKGROUND: Treatment for head and neck cancer (HNC) involves several structures and lymphatic tissue that are at risk of injury by surgical and / or radio-chemotherapy treatment. External and internal secondary lymphedema of the head and neck is an important outcome, although underdiagnosed, under-treated and undervalued, and in many cases with an impact on breathing, swallowing and voice functions. OBJECTIVE: To evaluate the presence, stage and characteristics of facial, cervical and laryngeal lymphedema, swallowing, after treatment for HNC. METHODS: The study used the MD Anderson Cancer Center Scales (MDACC) to evaluate the stage of external face and neck lymphedema and the Patterson et al. for internal pharyngolaryngeal edema after a minimum of three months of treatment for HNC at the Head and Neck Surgery Service of the Hospital das Clínicas of FMUSP and ICESP. Swallowing was evaluated by Fiberoptic Endoscopic Evaluation of Swallowing (FEES) in the consistencies of liquid, nectar, pasty and solid. RESULTS: Lymphedema was detected in 97.8% of the evaluations with a predominance of the composite type (73.9%). A high percentage of external lymphedema of the neck (71.7%) and submandibular (63%) were detected, with a predominance of the more advanced levels (2 and 3) indicating a tendency to fibrosis. Internal edema was found in almost all structures and spaces evaluated. At FESS, residue was observed, penetration in all analyzed aspects. The combined treatment with Rt was related to external submandibular, neck lymphedema and internal edema, as well as the alteration in pharyngolaryngeal sensitivity, presence of residue and penetration to pasty. CONCLUSION: Cervicofacial and pharyngolaryngeal lymphedema is a frequent event after treatment for HNC, with important consequences on swallowing performance characterized by residue that lead to penetration and aspiration. Combined treatment of Rt is a factor associated with these changes

Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2016-08-09T13:03:48Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação- Formato Digital.pdf: 1043787 bytes, checksum: 0003a6e600b01ab6c9fe4c21de4d9b02 (MD5) / Made available in DSpace on 2016-08-09T13:03:48Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação- Formato Digital.pdf: 1043787 bytes, checksum: 0003a6e600b01ab6c9fe4c21de4d9b02 (MD5) Previous issue date: 2015-07-20 / FACEPE / O tratamento pós-cirúrgico do câncer de mama pode levar à fadiga e se persistir de forma crônica compromete o desempenho nas atividades diárias e interfere na qualidade de vida. Além disso, a mastectomia pode causar alteração na imagem corporal (IC) e ser agravada com a presença do linfedema. Esse estudo teve como objetivo comparar a diferença no nível de fadiga (F), qualidade de vida (QV) e (IC) em mulheres pós-mastectomizadas unilateralmente e sem reconstrução mamária, bem como verificar se há associação de algumas variáveis sociodemógraficas, biológicas e clínicas com a F, QV e IC. Através de um estudo de corte transversal realizado com mulheres mastectomizadas unilateralmente dois questionários específicos foram utilizados: functional assessment of cancer therapy- fatigue (FACT-F) para a F e QV e body image scale (BIS) para a IC. O linfedema foi mensurado pela volumetria indireta. Os grupos foram comparados através do teste T-Student independente e o teste Qui-quadrado de Pearson (P≤0,05). Para verificar a associação entre as variáveis, foi utilizado um modelo de regressão linear. Foram avaliadas 54 mulheres, sendo 27 com linfedema. As mulheres com linfedema apresentaram média de idade maior e índice de massa corpórea (IMC) menor do que as mulheres sem linfedema (p<0,02). A F, QV e IC foram satisfatórias em ambos os grupos e não houve diferença estatística entre elas. A F, QV e IC foram satisfatórias em ambos os grupos e não houve diferença estatística entre elas. A fadiga foi influenciada inversamente pela idade das pacientes; a QV foi associada com o tempo pós-cirúrgico, idade e IMC e a IC em pacientes com linfedema foi influenciada inversamente pela idade e proporcionalmente pelo tempo de fisioterapia. Conclui-se que fatores como idade, tempo de pós-cirúrgico, IMC e tempo de fisioterapia interferem na F, QV e IC das pacientes pós-mastectomia. Salientando ainda que a prática regular da fisioterapia pode ter sido responsável pelos parâmetros baixos da fadiga, imagem corporal bem como pouca alteração na QV. / The treatment after breast cancer surgery can lead to fatigue and if it becomes chronic, compromises performance in daily activities and interferes in quality of life. In addition, mastectomy may cause change in body image (BI) that can be aggravated by the presence of lymphedema. The aim of this study was to compare the fatigue level (F), quality of life (QOL) and (BI) in women post-mastectomy and without breast reconstruction and determine the possible association of some sociodemographic, biological and clinical variables with these findings. Through a cross-sectional study of post-mastectomy women unilaterally two specific questionnaires were used: functional assessment of cancer therapy- fatigue (FACT-F) for F and QOL and body image scale (BIS) to the BI. Lymphedema was measured by indirect volume. The groups were compared using independent T-test and chi-square test of Pearson (p≤0.05). A linear regression model was used in order to verify the association between variables. In the present study 54 women were assessed and 27 presented lymphedema. Women with lymphedema had a higher mean age and less body mass index (BMI) than women without lymphedema (p <0.02). The F, QOL and BI were satisfactory in both groups and there were no statistical difference between them. F was influenced inversely by the age of patients; QOL was associated with post-surgical time, age and BMI and besides, BI in patients with lymphedema was inversely influenced by age and proporcionally by time of physical therapy practice. It´s concluded that factors such as age, post-surgical time, BMI and physical therapy time of practice interfere with fatigue, quality of life and body image in post-mastectomy patients. And besides, regular physical therapy practice may have been responsible for the low F parameters, BI and little disturb in QOL.

INTRODUÇÃO: O tratamento para o câncer de cabeça e pescoço (CCP) envolve várias estruturas e tecido linfático que estão sob risco de prejuízo pelo tratamento cirúrgico e/ou radio-quimioterápico. O linfedema secundário externo e interno de cabeça e pescoço é sequela importante, ainda que subdiagnosticada, subtratada e subvalorizada e, em muitos casos, com impacto nas funções de respiração, deglutição e voz. OBJETIVO: Avaliar a presença, estadiamento e características do edema facial, cervical e laríngeo, a deglutição, após o tratamento para o câncer de cabeça e pescoço. MÉTODOS: O estudo utilizou as Escalas do MD Anderson Cancer Center (MDACC) para avaliar e estadiar o linfedema externo de face e pescoço e a Escala do Edema da Radioterapia de Patterson et al. para o edema interno faringolaríngeo após um mínimo de três meses de tratamento para o CCP, no Serviço de Cirurgia de Cabeça e Pescoço do Hospital das Clínicas da FMUSP e do ICESP. A deglutição foi avaliada por meio de videoendoscopia da deglutição (VED) nas consistências de líquido, néctar, pastoso e sólido. RESULTADOS: O linfedema foi detectado em 97,8% das avaliações com predomínio do tipo composto (73,9%). Foram detectados percentual alto de linfedema externo de pescoço (71,7%) e submandibular (63%), com predomínio para os níveis mais avançados (2 e 3) indicando tendência à fibrose. Encontrou-se edema interno em quase todas as estruturas e espaços avaliados. À VED, observou-se resíduo, penetração em todas as cosnistências analisadas. O tratamento combinado com Rt teve relação com o linfedema externo submandibular e pescoço, interno, bem como com a alteração de sensibilidade faringolaríngea, presença de resíduo e penetração para pastoso. CONCLUSÃO: O linfedema cervicofacial e faringolaríngeo é um evento frequente após o tratamento para o CCP, com consequências importantes no desempenho da deglutição caracterizadas por resíduo e levar à penetração e aspiração. O tratamento combinado com Rt é um fator associado a estas alterações / BACKGROUND: Treatment for head and neck cancer (HNC) involves several structures and lymphatic tissue that are at risk of injury by surgical and / or radio-chemotherapy treatment. External and internal secondary lymphedema of the head and neck is an important outcome, although underdiagnosed, under-treated and undervalued, and in many cases with an impact on breathing, swallowing and voice functions. OBJECTIVE: To evaluate the presence, stage and characteristics of facial, cervical and laryngeal lymphedema, swallowing, after treatment for HNC. METHODS: The study used the MD Anderson Cancer Center Scales (MDACC) to evaluate the stage of external face and neck lymphedema and the Patterson et al. for internal pharyngolaryngeal edema after a minimum of three months of treatment for HNC at the Head and Neck Surgery Service of the Hospital das Clínicas of FMUSP and ICESP. Swallowing was evaluated by Fiberoptic Endoscopic Evaluation of Swallowing (FEES) in the consistencies of liquid, nectar, pasty and solid. RESULTS: Lymphedema was detected in 97.8% of the evaluations with a predominance of the composite type (73.9%). A high percentage of external lymphedema of the neck (71.7%) and submandibular (63%) were detected, with a predominance of the more advanced levels (2 and 3) indicating a tendency to fibrosis. Internal edema was found in almost all structures and spaces evaluated. At FESS, residue was observed, penetration in all analyzed aspects. The combined treatment with Rt was related to external submandibular, neck lymphedema and internal edema, as well as the alteration in pharyngolaryngeal sensitivity, presence of residue and penetration to pasty. CONCLUSION: Cervicofacial and pharyngolaryngeal lymphedema is a frequent event after treatment for HNC, with important consequences on swallowing performance characterized by residue that lead to penetration and aspiration. Combined treatment of Rt is a factor associated with these changes

Linfedema é uma condição crônica que predispõe a uma substancial morbidade e perda da função do órgão ou tecido afetado. Ele não tem cura e em longo prazo leva a dificuldades físicas e psicológicas ao paciente, tornando-se um grande desafio para os médicos. Infelizmente, é triste constatar que aproximadamente 400 anos após a descoberta dos vasos linfáticos, não há cura para o linfedema, sendo o tratamento baseado em drenagem linfática manual através de massagem e limitadas intervenções de fisioterapia, ambas visando redução do volume de edema, o que fornece alívio parcial para os indivíduos afetados que não garantem o desaparecimento da fibrose, aparentemente irreversível. Por isso, estudos que proporcionem novas intervenções, como a terapia celular com células-tronco, são de grande interesse. Neste trabalho tivemos como objetivo realizar terapia celular de linfedema murino utilizando células-tronco da membrana amniótica. Em um primeiro momento, a obtenção do modelo de insuficiência linfática foi feita com base em Tabibiazar et al., 2006 onde uma microablação de 2 mm em toda a circunferência foi feita na cauda do animal. Entretanto, após 30 dias de indução uma regressão espontânea foi observada inviabilizando a utilização deste modelo. Após vasta pesquisa na literatura outro modelo de indução de linfedema (Shimizu et al., 2012) foi encontrado, onde os autores fazem uma microablação cirúrgica, mantendo um flap de 4 mm na região ventral. Neste trabalho os autores obtiveram um linfedema estável por no mínimo 30 dias. Com base nestes achados, o modelo de linfedema murino induzido baseado em Shimizu foi realizado e após a comprovação desta estabilidade por 60 dias, esse modelo foi utilizado para indução do linfedema. Após esta caracterização, os animais que tiveram o linfedema induzido foram submetidos a terapia celular utilizando 0,5X106 células-tronco da membrana amniótica humana (MAh) ou saco vitelino canino (SVc) no momento da indução. Animais sem lesão, com lesão (SHAM) e tratados apenas com solução fisiológica (placebo) também foram analisados. O monitoramento do linfedema na cauda foi feito através de acompanhamento clínico, registro fotográfico e mensura do diâmetro caudal a cada 2-3 dias. Ao final do estudo, os animais foram eutanasiados, tiveram suas caudas removidas e foram submetidos a avaliação dos efeitos terapêuticos da terapia celular através de análise do exsudato, análises histológicas (HE, picrossírius) e imuno-histoquímicas. A histológica obtida por coloração de HE além de apresentar o melhor resultado quando comparado com as demais técnicas, possibilitou avaliar as alterações patológicas pertinentes de cada amostra, revelando efeitos benéficos da terapia quando comparados com SHAM e placebo. Já, a coloração Picrossírius permitiu visualizar além das alterações estruturais, a inversão da predominância da expressão de colágeno do tipo I, por colágeno do tipo III nos tecidos estruturalmente comprometidos. O resultado do conjunto de análises das amostras apresentou o padrão linfedematoso esperado para os grupos SHAM e placebo, porém também mostrou um processo inflamatório muito menor e mais curto nos grupos MAh, e SVc, permitindo sugerir que a terapia celular causou um impacto favorável e os animais apresentaram resultados muito próximos aos padrões exibidos pelo grupo controle. / Lymphedema is a chronic condition, which predisposes to substantial morbidity and loss of function of the affected organ or tissue. It has no cure and, in the long term, leads patients to physical and psychological problems, which is a major challenge for doctors. Unfortunately, it is sad to realize that, approximately 400 years after the discovery of the lymphatic vessels, there is no cure for lymphedema. The treatment is based on manual lymphatic drainage through massage and limited physiotherapy interventions. Both techniques aim at reducing the volume of the edema, which provides partial relief for affected individuals, but do not guarantee the disappearance of the fibrosis, which is, apparently, irreversible. Therefore, studies that provide new interventions, such as stem cell therapy, are of great interest. In this study, we carried out induced murine lymphedema using human amniotic membrane stem cells. At first, we obtained the model of lymphatic insufficiency based on Tabibiazar et al., 2006, in which a 2 mm microablation throughout the circumference was made in the tail of the animal. However, after 30 days of induction, a spontaneous regression was observed, making this model unusable. After extensive literature research, another model of lymphedema induction (Shimizu et al., 2012) was found. In this model, the authors perform a surgical microablation, maintaining a 4 mm flap in the ventral region. The authors obtained stable lymphedema for at least 30 days. Based on these findings, the model of induced murine lymphedema, based on Shimizu et al., 2012, was performed and, after proving this stability for 60 days, this model was used for the induction of murine lymphedema. After this characterization, the animals that have had induced lymphedema were subjected to cell therapy using 0.5X106 human amniotic membrane stem cells (MAh) or canine yolk sac (SVc) at the time of induction. Animals without lesion, with lesion (SHAM) and treated only with solution were also analyzed. The monitoring of lymphedema in the tail was done through clinical follow-up, photographic record and caudal diameter measurement every 2-3 days. At the end of the study, the animals were euthanized, had their tails removed, and were subjected to evaluation of the therapeutic effects of the cell therapy through exudate analysis, histological analysis (HE, picrosirius) and immunohistochemistry analysis. The histological obtained by HE staining, besides presenting the best result when compared to the other techniques, allowed to evaluate the pertinent pathological alterations of each sample, revealing beneficial effects of the therapy when compared to SHAM and placebo. Picrosirius staining allowed to visualize, in addition to the structural alterations, the reversal of the predominance of type I collagen expression by type III collagen in structurally compromised tissues. The result of the sample analysis showed the expected lymphomatoid pattern for the SHAM and placebo groups, but also showed a much shorter and shorter inflammatory process in the MAh and SVc groups, suggesting that the cell therapy had an impact and the animals presented results very close to the standards presented by the control group.

No description available.

Improvements in the treatment of breast cancer have resulted in better survival rates and less breast cancer related morbidity. Nevertheless, a significant group of patients still experience a diminished quality of life as a result of lymphedema. In the early, often reversible, stage of lymphedema patients can experience subjective changes in the affected area. However, with the traditionally available tools the lymphedema often remains clinically undetectable and patients are denied essential care that can prevent worsening. Furthermore, most lymphedema assessment tools fail to support a clear unambiguous definition of lymphedema. This underlines the need for a sensitive objective measurement method that can assess lymphedema in a subclinical stage. In this study we demonstrated that measuring tissue dielectric constant (TDC) using the MoistureMeter-D is an effective method to detect tissue water changes and could potentially provide a cost-effective adequate tool to measure the early onset of breast cancer related lymphedema (BCRL). Secondarily, we established the correlation between the novel TDC method and the frequently used arm volume measurements and self-assessment questionnaires. A group of 20 female patients with clinically BCRL were included. TDC measurements in both arms and all quadrant of both breast were recorded along with volumetric measurements of both arms. All patients were asked to complete a self-report questionnaire. The novel TDC method detected significantly higher tissue water levels in the affected arm and breast compared to the control side. The TDC ratio between control and affected side showed significant correlation with self-reported pain and discomfort in both arm and breast. In the arm, the TDC method also showed correlation with the volume measurement method. The TDC value of the arm was correlated to age, but not to BMI. This study demonstrates that measuring TDC using the MMD is an effective method for quantifying lymphedema in arm and breast and is an important tool in detecting early TWC changes.

Resumo: Identificar as repercussões estruturais, funcionais e na qualidade de vida de mulheres submetidas à vulvectomia e linfadenectomia inguinal para tratamento cirúrgico do câncer de vulva. Estudo observacional, prospectivo, transversal. Foram avaliadas 28 mulheres submetidas ao tratamento cirúrgico para câncer de vulva e 28 mulheres saudáveis (grupo controle), pareadas por idade. Os dados demográficos e clínicos referentes ao câncer de vulva foram obtidos por meio de análise de registros médicos, entrevista, exame físico e dos questionários: European Organization for Reseach and Treatment of Cancer Quality-of-Life Questionnaire (EORTC QLQ-C30), para qualidade de vida, International Consultation on Incontinence Questionnare - Short Form (ICIQ-SF), para avaliação da função urinária e o The Female Sexual Function Index (FSFI), para avaliar a função sexual. Os testes estatísticos utilizados foram qui-quadrado, t de Student, Spearman e Mann Whitney-U. A ocorrência de linfedema foi maior nas pacientes com câncer de vulva em comparação ao controles (p<0,05). O linfedema foi mais grave nas pacientes tratadas para câncer de vulva em comparação ao controle (p=0,003). Não houve diferença entre a gravidade do linfedema e as variáveis: estadiamento, tratamento adjuvante, lateralidade do linfedema e complicações. Houve associação entre gravidade do linfedema e as variáveis idade (p=0,04) e IMC (p=0,04). As escalas de qualidade de vida, definidas pelos domínios: físico, cognição, emocional, social, fadiga, dor, sono, e questões financeiras; se associaram com a gravidade do linfedema (p<0,05). Não houve influência das variáveis: estado civil, escolaridade, menopausa e câncer de vulva na qualidade de vida sexual. Houve associação entre qualidade de vida sexual com a idade (p=0,01) e parceiro estável (p=0,01). As variáveis: IMC, menopausa e câncer de vulva... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: To identify the impact structural, functional and quality of life of women before vulvectomy and inguinal lymphadenectomy for surgical treatment of cancer of the vulva. Observational, prospective, cross. We evaluated 28 women undergoing surgical treatment for cancer of the vulva and 28 healthy women (control group), matched for age. The demographic and clinical data relating to cancer of the vulva were obtained through analysis of medical records, interview, physical examination and questionnaires: European Organization for Research and Treatment of Cancer Quality-of-Life Questionnaire (EORTC QLQ-C30) for quality of life, International Consultation on Incontinence Questionnaire - Short Form (SF-ICIQ) for assessment of urinary function and The Female Sexual Function Index (FSFI) to assess sexual function. Statistical tests used were chi-square, t Student, Spearman and Mann-Whitney-U. The incidence of lymphedema was higher in patients with cancer of the vulva as compared to controls (p <0.05). The lymphedema was more severe in patients treated for cancer of the vulva as compared to control (p = 0003). There was no difference between the severity of lymphedema and the variables: stage, adjuvant treatment, laterality and complications of lymphedema. There was an association between severity of lymphedema and the variables age (p = 0.04) and BMI (p = 0.04). The scales of quality of life, defined by domains: physical, cognitive, emotional, social, fatigue, pain, sleep, and financial issues, became associated with the severity of lymphedema (p<0.05). There was no influence of variables: marital status, educational level, menopause and cancer of the vulva in the quality of sexual life. There was an association between sexual quality of life with age (p = 0.01) and stable partner (p = 0.01). The variables: BMI, menopause and cancer of the vulva did not influence... (Complete abstract click electronic access below) / Orientador: Agnaldo L. Silva Filho / Coorientador: Elyonora M. Figueiredo / Banca: Paulo Traiman / Banca: Sérgio Augusto Triginelli / Mestre

Conselho Nacional de Desenvolvimento Científico e Tecnológico / In one research, cases of congenital lymphedema were observed affecting 17 Red Angus calves and their crosses from two farms in the central region of the state of Rio Grande do Sul, Brazil. Affected calves presented variable degrees of subcutaneous edema at birth, involving mainly the hind limbs, but also other body regions. The injection of methylene blue dye in a 5% solution into the interdigital space of the hind limbs of three affected calves and one normal control indicated an interruption of the lymph flow in the affected calves; this suggests a failure of the distal peripheral lymphatics to connect with the central trunks. At necropsy of three affected calves, subcutaneous edema was variably observed in the hind limbs, prepuce and ventral abdomen. Edema of body cavities was not observed. In two cases there was hipoplasia of the popliteal lymph nodes associated to dilatation of lymphatic vessels. DNA tests demonstrated that all affected calves were born from cows sired by the same bull suggesting an inherited basis for the disease. Furthermore unrelated cows of different breeds sired by Bull 1 delivered affected calves which suggest that condition is an autosomic dominant trait. Considering the large numbers of cows sired by Bull 1 relative few calves were affected; this could be explained by a low penetrance of the trait. In another research, cases of congenital defects (CDs) in cattle diagnosed at the Laboratory of Veterinary Pathology of the Federal University of Santa Maria from 1964 to 2010 were reviewed. During the studied period, tissues collected from the necropsy of 7,132 cattle were examined and 31 calves (0.4%) with CDs were found. These CDs were classified into 34 different types and ascribed to the body system primarily affected. The results of this survey indicate that the majority o CDs in cattle in the central Rio Grande do Sul are sporadic; nevertheless their continued study is important for determining the etiology and control. / Em uma pesquisa, casos de linfedema congênito foram observados acometendo 17 bezerros cruza Red Angus na região Central do Rio Grande do Sul. Os bezerros afetados apresentavam graus variáveis de edema subcutâneo ao nascimento, envolvendo principalmente os membros pélvicos, mas também outras regiões do corpo. A injeção de solução a 5% de azul de metileno no espaço interdigital dos membros pélvicos de três bezerros afetados e um controle, indicaram uma interrupção no fluxo da linfa, sugerindo uma falha dos linfáticos periféricos distais em conectar os troncos centrais. Na necropsia de três bezerros afetados, edema subcutâneo foi observado de modo variável nos membros pélvicos, prepúcio e abdômen ventral. Não foi observado edema nas cavidades orgânicas. Em dois casos, observou-se hipoplasia dos linfonodos poplíteos associadas à dilatação dos vasos linfáticos. Testes de DNA demonstraram que todos os bezerros afetados nasceram de vacas inseminadas pelo mesmo touro (Touro 1), sugerindo uma base genética para a doença. Além disso, vacas não relacionadas e de outras raças cobertas pelo Touro 1 pariram bezerros afetados indicando uma condição autossômica dominante. Considerando o grande número de vacas cobertas pelo Touro 1, relativamente poucos bezerros foram afetados; isso pode ser explicado por uma condição hereditária de baixa penetrância. Em outra pesquisa, foram revisados casos de defeitos congênitos (DCs) diagnosticados em bovinos no Laboratório de Patologia da Universidade Federal de Santa Maria entre 1964-2010. Durante o período estudado, foram examinados materiais provenientes da necropsia de 7.132 bovinos e foram encontrados 31 bezerros (0,4%) com DCs, os quais foram classificados em 34 tipos e alocados nos sistemas orgânicos primariamente afetados. Os resultados indicam que a maioria dos DCs em bovinos na Região Central do Rio Grande do Sul é esporádica. No entanto, seu estudo continuado é importante para o estabelecimento de sua etiologia e controle.

Lymph is primarily composed of fluid and proteins from the blood circulatory system that drain into the space surrounding cells, interstitial space. From the interstitial space, the fluid enters and circulates in the lymphatic system until it is delivered into the venous system. In contrast to the blood circulatory system, the lymphatic system lacks a central pumping organ dictating the predominant driving pressure and velocity of lymph. Transport of lymph via capillaries, pre-collecting and collecting lymphatic vessels relies on the synergy between pressure gradients, local tissue motion, valves and lymphatic vessel contractility. The direction of lymph transport is regulated by bicuspid valves distributed throughout pre-collecting and collecting lymphatic vessels. Effective transport of lymph into the venous system is of prime importance. Disruption of lymph transport, because of impaired lymphatic function, reduced numbers of vessels or valvular insufficiencies can have severe health consequences, including lymphedema for which current clinical therapies are not curative. The lymphatic valves are usually bicuspid, however, congenital malformations in the valve such as single leaflet valve formation and arrested lymphatic valve development are observed and can cause lymphedema. Here we employ 4-week-old mice to study the effects of valves and malformed valves on lymph transport shedding light into some of the potentially underlying consequences of lymphedema. Polyethylene glycol (PEG) coated latex particles were injected into the inguinal lymph node of anesthetized mice. Particle displacement measurements through efferent lymphatic vessels yielded velocity, wall shear stress, vorticity and strain of the efferent lymph flow field carrying lymph from subdermal inguinal lymph nodes. Lymphatic vessel endothelial Prox1 green fluorescent protein (GFP) marker enabled the detection of lymphatic vessel walls and valves. Flow field, flow velocity, flow rate, velocity profiles, wall shear stress, vorticity and strain values were compared in regions downstream of normal and malformed valves in two wild type mice. A Clec2-deficient mouse, which experiences lymphatic development defects and is used as a lymphedema model, was employed to further elucidate the lymphatic valves on transport. The absence of centralized pumping yields highly variable lymphatic flow cycles varying from one to fifteen seconds. The presence of lymphatic valves introduces boundary conditions that yield spatial and temporal flow gradients increasing the degree of complexity of lymph transport. The valves dictate the trajectory of the particles and promote the formation of recirculation zones. Even in the presence of valves, lymph flow commonly reverses. Congenital defects like a single leaflet valve lowers the lymph flow efficiency and promotes higher wall shear stress regions. Furthermore, the absence of functional valves in the Clec2-deficient mouse not displaying lymphedema yielded lymph flow lacking the pulsatility that characterizes normal lymphatic flow.

<p>UVOD. Sekundarni limfedem ruke je relativno česta komplikacija nakon lečenja raka dojke. Iako se kompleksna dekongestivna terapija smatra &ldquo;zlatnim standardom&ldquo; &quot;, jo&scaron; uvek postoji kontroverza o tome da li dodavanje presoterapije daje bolji terapijski efekat. Stoga je cilj ovog istraživanja bio uporediti efikasnost kompleksne dekongestivne fizikalne terapije (KDFT) u odnosu na kompleksnu dekongestivnu fizikalnu terapiju sa presoterapijom na funkcionalni status, nivo bola i kvalitet života kod pacijentkinja sa sekundarnim limfedemom ruke nakon lečenja raka dojke. MATERIJAL I METODE. Prospektivna, randomizovana, paralelna, nemaskirana studija je obuhvatila 108 pacijentkinja sa sekundarnim limfedemom ruke, prosečne starosti 56,8 &plusmn; 8,5 godina, koje su zavr&scaron;ile operativno lečenje raka dojke pre 57,4 &plusmn; 46,2 meseca. One su randomizovane u 2 grupe: KDFT grupa (kontrolna) ili KDFT+presoterapija grupa (eksperimentalna). Protokol KDFT se sastojao od nege kože, manuelne limfne drenaže, kratkoelastične vi&scaron;eslojne bandaže i vežbi. Osim toga, eksperimentalna grupa je primala presoterapiju (intermitentnu pneumatsku kompresiju), 30 minuta dnevno pri pritisku od 40 mm Hg. Oba protokola su se provodila jednom dnevno, pet dana sedmično tokom 3 sedmice. Ispitanice su podučavane za nastavak samostalnog sprovođenja nege kože, manuelne limfne drenaže i vežbi, kao i za no&scaron;enje kompresivnog rukava, 3 meseca nakon zavr&scaron;etka lečenja. Mere ishoda. Obim ruke, obim pokreta u zglobu ramena, snaga stiska &scaron;ake, vizuelna analogna skala za bol, upitnik Nesposobnost ruke, ramena i &scaron;ake (DASH) za funkciju ruke i upitnik Funkcionalna analiza lečenja raka dojke dojke sa subskalom 4+ za ruku (FACT-B4+) za kvalitet života su ocenjeni pre, neposredno nakon i 3 meseca nakon zavr&scaron;etka lečenja. Za statističku obradu dobijenih podataka kori&scaron;ćene su deskriptivne metode, analiza varijanse (ANOVA) za ponovljena merenja, analiza kovarijanse, Man-Vitni test, hi-kvadrat test i Fi&scaron;erov egzaktni test, prema potrebi. REZULTATI. Od ukupno 108 randomizovanih ispitanica, analizirane su 102 (51 u svakoj grupi). Nije bilo značajnih razlika u demografskim i kliničkim karakteristikama između dve grupe. ANOVA je pokazala značajan uticaj vremena za sve ispitivane varijable (p &lt;0,01), ali ne i značajnu interakciju vreme-grupa (0,07 &le; p &le; 0,99). Tačnije, nije bilo značajne razlike između dve ispitivane grupe u stepenu smanjenja limfedema, obimu pokreta u ramenu, snazi stiska &scaron;ake, nivou bola, DASH skoru i skorovima kvaliteta života merenim FACT -B4+, na kraju tretmana, i nakon 3 meseca praćenja. ZAKLJUČAK. Dodavanje presoterapije kompleksnoj dekongestivnoj terapiji, ne doprinosi boljem ishodu lečenja kod pacijentkinja sa limfedemom ruke nakon operacije karcinoma dojke u poređenju sa samo dekongestivnom terapijom.</p> / <p>BACKGROUND. Secondary lymphedema of the arm is a relatively common complication after breast cancer surgery. Although complex decongestive therapy is considered the &ldquo;golden standard&rdquo;, there is still a controversy as to whether adding pressotherapy is of any value. Thus, the aim of this study was to compare the efficacy of complex decongestive therapy (CDT) against complex decongestive therapy combined with a pressotherapy on functional status, pain, and quality of life in patients with secondary lymphedema of the arm after breast cancer treatment. METHODS. In this prospective, randomized, parallel, non-blind study, we recruited 108 women, mean age 56.8&plusmn;8.5 years, with secondary arm lymphedema who completed breast cancer surgery 57.4&plusmn;46.2 months earlier. They were randomly assigned to a CDT group (control) or CDT+pressotherapy group (experimental). The CDT protocol consisted of skin care, manual lymphatic drainage, short stretch multi-layer compression bandages, and exercises provided by therapists. In addition to that, the experimental group received pressotherapy (intermittent pneumatic compression) for 30 minutes per day at a pressure of 40 mmHg. The treatments were administered once a day, five days a week, for 3 weeks. The subjects were instructed to continue administering the skin care, manual lymphatic drainage, compression sleeve and exercises on their own for 3 months after the end of treatment. Outcome measures. Arm circumference, shoulder range of motion, grip strength, visual analog scale for pain, Disability of the Arm, Shoulder and Hand questionnaire (DASH) for the overall arm function, and Functional Analysis of Cancer Treatment- Breast 4+ (FACT-B4+) for quality of life were assessed before, immediately after, and at 3 months after the end of treatment. The statistical analyses included descriptive methods, analysis of variance (ANOVA) for repeated measures, analysis of covariance, Mann-Whitney U- test, chi-square test, and Fisher&rsquo;s exact test, as appropriate. RESULTS. From a total of 108 subjects randomly assigned, 102 completed the entire protocol (51 in each group), and their data were analyzed. There were no significant differences in demographic and clinical characteristics between the two groups. The ANOVA revealed significant main effect of Time for all studied variables (p &lt; 0.01), but no significant group-by-time interaction (0.07 &le; p &le; 0.99). More specifically, there was no significant difference between the two groups in the degree of lymphedema reduction, shoulder range of motion, grip strength, pain, DASH score, and FACT-B4+ scores either at the end of treatment or at 3-month follow up. CONCLUSIONS. Combining CDT with pressotherapy is no more efficacious than providing CDT alone in patients who present with chronic arm lymphedema after completing breast cancer treatment.</p>