Mecanismos de adaptação do coração em atletas de elite do sexo feminino: comparação com indivíduos sadios e tempo de treinamento / Heart adaptation mechanisms in elite female athletes: comparison with healthy individuals and time of training

Fundamento: O exercício intenso e continuado em atletas provoca fenótipos de remodelamento adaptativo, cujos parâmetros podem ser avaliados pela ecocardiografia convencional, e de deformação miocárdica. Assim, foi comparado o remodelamento miocárdico em atletas do sexo feminino (grupo atletas) com mulheres sedentárias da mesma faixa etária (grupo-controle) e entre atletas com maior e menor tempo de treinamento. Métodos: Foram selecionadas 57 futebolistas femininas (grupo atletas) e 25 mulheres sadias sedentárias (grupocontrole). As atletas foram divididas em dois grupos: grupo principal, com 32 atletas, e grupo sub-17, com 25 atletas. Foram determinadas, através de ecocardiografia, as dimensões, a função sistólica e diastólica das câmaras cardíacas e a deformação miocárdica (strain longitudinal, circunferencial, radial e mecânica rotacional), utilizando a estatística Z com significância de p < 0,05. Resultados: A idade dos grupos atletas, controle, principal e sub-17 foi de 22,1±6,3; 21,2±5,0; 26,5±5,1; e 16,5±0,6, respectivamente. O peso, o índice de massa corporal e a frequência cardíaca foram menores no grupo atletas. A espessura das paredes, o índice de massa do ventrículo esquerdo (VE), o volume do átrio esquerdo (AE), a fração de ejeção e as dimensões do ventrículo direito (VD) foram maiores no grupo atletas, mas dentro de valores normais. A deformação miocárdica mostrou diminuição do strain radial, da rotação basal, da rotação apical e do twist, sugerindo mecanismo de reserva contrátil. Esses parâmetros foram menores no grupo principal, que também apresentava maior espessura das paredes, maior volume do AE e maior tamanho do VD, sugerindo que o aumento da reserva contrátil se relaciona com maior tempo de treinamento. Conclusões: As atletas do sexo feminino com treinamento intenso de longa duração apresentam remodelamento adaptativo das câmaras cardíacas e aumento da reserva contrátil observada em repouso, com esses parâmetros mais acentuados nas atletas com maior tempo de treinamento.(AU)

Background: Intense continuous exercise provokes adaptive remodeling phenotypes in athletes, the parameters of which can be evaluated through conventional echocardiography and myocardial deformation. We compared myocardial remodeling in female athletes (athlete group) with sedentary women of the same age range (control group) and between older and younger athletes. Methods: A total of 57 female soccer players and 25 healthy sedentary women were selected. The athlete group was subdivided into a main group and those under 17 years of age (< 17 group). The dimensions and systolic and diastolic function of the cardiac chambers and myocardial deformation (longitudinal and circumferential, as well as radial strain and rotational mechanics) was determined through echocardiography, using the Z statistic with a significance level of p< 0.05. Results: The mean age of the athlete, control, main, and < 17 groups was 22.1 (SD, 6.3); 21.2 (SD, 5.0); 26.5 (SD, 5.1); 16.5 (SD, 0.6) years, respectively. Weight, body mass index and heart rate were lower in the athlete group. Wall thickness, left ventricular mass index, left atrial (LA) volume, ejection fraction, and right ventricular dimensions were higher in athlete group, but remained within normal ranges. Regarding myocardial deformation, there was decreased radial strain, basal rotation, apical rotation, and twisting in the athlete group, suggesting a contractile reserve mechanism. These parameters were lesser in the main athlete group, who also had greater wall thickness, greater volume in the left atrium (LA) and larger size in the right ventricle (RV), suggesting that increased contractile reserve is related to longer time spent in the sport. Conclusions: In female athletes who had undergone intense long-term training, we observed adaptive remodeling of the cardiac chambers and increased contractile reserve (at rest), and these changes were more pronounced in those with longer involvement in the sport.(AU)

Análisis de la difusión y utilidad percibida a través de la implementación de una plataforma de formación virtual durante la pandemia por COVID-19 / Analysis of the broadcasting and perceived utility through the implementation of a virtual training platform during the pandemic

Introducción: La pandemia de COVID-19 ha afectado a las oportunidades de formación de los profesionales sanitarios, en parte porque se anularon muchos cursos presenciales. En este estudio se analizan los resultados de participación y satisfacción de las sesiones del Aula Virtual AEC durante su primer año. Métodos: El Aula Virtual AEC incluye un formato combinado de seminarios semanales emitidos en directo que pueden ser visionados en diferido. En este estudio se evalúan los resultados en sus primeros 12 meses, considerando el número de participantes en directo, el número de visualizaciones en diferido y el alcance global, así como los resultados de la encuesta de satisfacción realizada en cada una de las sesiones (1-10) Resultados: Desde el 16 de abril de 2020 hasta el 15 de abril de 2021 se realizaron 50 sesiones del Aula Virtual AEC. El alcance medio de las sesiones ha sido de 509 ± 288 visualizaciones con un rango entre 196 y 1490. En los picos de la pandemia se observó un descenso de los participantes en directo: 275 ± 135 vs. 391 ± 233 (p = 0,032) La puntuación media sobre el formato fue 8,46 ± 0,31/10. Las sesiones mejor puntuadas fueron las de temática relacionada con coloproctología con una diferencia estadísticamente significativa en la puntuación media 8,79 ± 0,42 vs. 8,39 ± 0,27 (p = 0,035). Un 90,76% de usuarios consideraron las sesiones útiles. Un 97,2% consideraban que deben mantenerse tras la pandemia. Conclusiones: El Aula Virtual AEC ha tenido muy buenos resultados en los primeros 12 meses de desarrollo, resultando ser una herramienta útil de docencia quirúrgica que previsiblemente sobrevivirá a la época de pandemia. (AU)

Introduction: The SARS-CoV-2 pandemic has affected training opportunities for healthcare professionals partly because face to face courses were cancelled. This study analyzes the results of participation and satisfaction of the AEC Virtual Classroom sessions during the first year. Methods: The AEC Virtual Classroom includes a combined format of weekly Webinar broadcast live that can be viewed on a delayed basis in a virtual platform. In this study, the results in its first year are evaluated considering the number of live participants, the delayed views and the global reach; as well as the results of the satisfaction survey in each of the sessions (0–10). Results: From 16/04/2020 to 15/04/2021, 50 sessions of the Virtual Classroom AEC were held. The average scope of the sessions was 509 ± 288 views with a range between 196 and 149. At the times of highest incidence of cases during the pandemic, a decrease in live participants was observed 275 ± 135 vs. 391 ± 233 (p = 0.032). The mean score on the format was 8.46 ± 0.31/10. The best-scored sessions were those of the subject related to coloproctology with a statistically significant difference in the mean score 8.79 ± 0.42 vs. 8.39 ± 0.27 (p = 0.035). 90% of users considered the sessions useful. 97.2% of respondents believe that the sessions should be maintained after the pandemic. Conclusions: The AEC Virtual Classroom has a very good results in the first year, proving to be a useful surgical teaching tool that will foreseeably survive once the pandemic is over. (AU)

Análisis de la difusión y utilidad percibida a través de la implementación de una plataforma de formación virtual durante la pandemia por COVID-19 / Analysis of the broadcasting and perceived utility through the implementation of a virtual training platform during the pandemic

Introducción: La pandemia de COVID-19 ha afectado a las oportunidades de formación de los profesionales sanitarios, en parte porque se anularon muchos cursos presenciales. En este estudio se analizan los resultados de participación y satisfacción de las sesiones del Aula Virtual AEC durante su primer año. Métodos: El Aula Virtual AEC incluye un formato combinado de seminarios semanales emitidos en directo que pueden ser visionados en diferido. En este estudio se evalúan los resultados en sus primeros 12 meses, considerando el número de participantes en directo, el número de visualizaciones en diferido y el alcance global, así como los resultados de la encuesta de satisfacción realizada en cada una de las sesiones (1-10) Resultados: Desde el 16 de abril de 2020 hasta el 15 de abril de 2021 se realizaron 50 sesiones del Aula Virtual AEC. El alcance medio de las sesiones ha sido de 509 ± 288 visualizaciones con un rango entre 196 y 1490. En los picos de la pandemia se observó un descenso de los participantes en directo: 275 ± 135 vs. 391 ± 233 (p = 0,032) La puntuación media sobre el formato fue 8,46 ± 0,31/10. Las sesiones mejor puntuadas fueron las de temática relacionada con coloproctología con una diferencia estadísticamente significativa en la puntuación media 8,79 ± 0,42 vs. 8,39 ± 0,27 (p = 0,035). Un 90,76% de usuarios consideraron las sesiones útiles. Un 97,2% consideraban que deben mantenerse tras la pandemia. Conclusiones: El Aula Virtual AEC ha tenido muy buenos resultados en los primeros 12 meses de desarrollo, resultando ser una herramienta útil de docencia quirúrgica que previsiblemente sobrevivirá a la época de pandemia. (AU)

Introduction: The SARS-CoV-2 pandemic has affected training opportunities for healthcare professionals partly because face to face courses were cancelled. This study analyzes the results of participation and satisfaction of the AEC Virtual Classroom sessions during the first year. Methods: The AEC Virtual Classroom includes a combined format of weekly Webinar broadcast live that can be viewed on a delayed basis in a virtual platform. In this study, the results in its first year are evaluated considering the number of live participants, the delayed views and the global reach; as well as the results of the satisfaction survey in each of the sessions (0–10). Results: From 16/04/2020 to 15/04/2021, 50 sessions of the Virtual Classroom AEC were held. The average scope of the sessions was 509 ± 288 views with a range between 196 and 149. At the times of highest incidence of cases during the pandemic, a decrease in live participants was observed 275 ± 135 vs. 391 ± 233 (p = 0.032). The mean score on the format was 8.46 ± 0.31/10. The best-scored sessions were those of the subject related to coloproctology with a statistically significant difference in the mean score 8.79 ± 0.42 vs. 8.39 ± 0.27 (p = 0.035). 90% of users considered the sessions useful. 97.2% of respondents believe that the sessions should be maintained after the pandemic. Conclusions: The AEC Virtual Classroom has a very good results in the first year, proving to be a useful surgical teaching tool that will foreseeably survive once the pandemic is over. (AU)

[Analysis of the broadcasting and perceived utility through the implementation of a virtual training platform during the pandemic]. / Análisis de la difusión y utilidad percibida a través de la implementación de una plataforma de formación virtual durante la pandemia por COVID-19.

Introduction: The SARS-CoV-2 pandemic has affected training opportunities for healthcare professionals partly because face to face courses were cancelled. This study analyzes the results of participation and satisfaction of the AEC Virtual Classroom sessions during the first year. Methods: The AEC Virtual Classroom includes a combined format of weekly Webinar broadcast live that can be viewed on a delayed basis in a virtual platform. In this study, the results in its first year are evaluated considering the number of live participants, the delayed views and the global reach; as well as the results of the satisfaction survey in each of the sessions (0-10). Results: From 16/04/2020 to 15/04/2021, 50 sessions of the Virtual Classroom AEC were held. The average scope of the sessions was 509 ± 288 views with a range between 196 and 149. At the times of highest incidence of cases during the pandemic, a decrease in live participants was observed 275 ± 135 vs. 391 ± 233 (p = 0.032). The mean score on the format was 8.46 ± 0.31/10. The best-scored sessions were those of the subject related to coloproctology with a statistically significant difference in the mean score 8.79 ± 0.42 vs. 8.39 ± 0.27 (p = 0.035). 90% of users considered the sessions useful. 97.2% of respondents believe that the sessions should be maintained after the pandemic. Conclusions: The AEC Virtual Classroom has a very good results in the first year, proving to be a useful surgical teaching tool that will foreseeably survive once the pandemic is over.

Analysis of the broadcasting and perceived utility through the implementation of a virtual training platform during the pandemic.

INTRODUCTION: The SARS-CoV-2 pandemic has affected training opportunities for healthcare professionals partly because face to face courses were cancelled. This study analyzes the results of participation and satisfaction of the AEC Virtual Classroom sessions during the first year. METHODS: The AEC Virtual Classroom includes a combined format of weekly Webinar broadcast live that can be viewed on a delayed basis in a virtual platform. In this study, the results in its first year are evaluated considering the number of live participants, the delayed views and the global reach; as well as the results of the satisfaction survey in each of the sessions (0-10). RESULTS: From 16/04/2020 to 15/04/2021, 50 sessions of the Virtual Classroom AEC were held. The average scope of the sessions was 509 ± 288 views with a range between 196 and 149. At the times of highest incidence of cases during the pandemic, a decrease in live participants was observed 275 ± 135 vs. 391 ± 233 (P = 0.032). The mean score on the format was 8.46 ± 0.31/10. The best-scored sessions were those of the subject related to coloproctology with a statistically significant difference in the mean score 8.79 ± 0.42 vs. 8.39 ± 0.27 (P = 0.035). 90% of users considered the sessions useful. 97.2% of respondents believe that the sessions should be maintained after the pandemic. CONCLUSIONS: The AEC Virtual Classroom has had very good results in the first year, proving to be a useful surgical teaching tool that will foreseeably survive once the pandemic is over.

Position Statement on the Use of Myocardial Strain in Cardiology Routines by the Brazilian Society of Cardiology's Department Of Cardiovascular Imaging - 2023. / Posicionamento do Departamento de Imagem Cardiovascular da Sociedade Brasileira de Cardiologia sobre o Uso do Strain Miocárdico na Rotina do Cardiologista ­ 2023.

Central Illustration : Position Statement on the Use of Myocardial Strain in Cardiology Routines by the Brazilian Society of Cardiology's Department Of Cardiovascular Imaging - 2023 Proposal for including strain in the integrated diastolic function assessment algorithm, adapted from Nagueh et al.67 Am: mitral A-wave duration; Ap: reverse pulmonary A-wave duration; DD: diastolic dysfunction; LA: left atrium; LASr: LA strain reserve; LVGLS: left ventricular global longitudinal strain; TI: tricuspid insufficiency. Confirm concentric remodeling with LVGLS. In LVEF, mitral E wave deceleration time < 160 ms and pulmonary S-wave < D-wave are also parameters of increased filling pressure. This algorithm does not apply to patients with atrial fibrillation (AF), mitral annulus calcification, > mild mitral valve disease, left bundle branch block, paced rhythm, prosthetic valves, or severe primary pulmonary hypertension.

Figura Central : Posicionamento do Departamento de Imagem Cardiovascular da Sociedade Brasileira de Cardiologia sobre o Uso do Strain Miocárdico na Rotina do Cardiologista ­ 2023 Proposta de inclusão do strain no algoritmo integrado de avaliação da função diastólica, adaptado e traduzido de Nagueh et al. 67 AE: átrio esquerdo; Ap: duração da onda A reversa pulmonar; Am: duração da onda A mitral; DD: disfunção diastólica; FEVEr: fração de ejeção do ventrículo esquerdo reduzida; IT: insuficiência tricúspide; SAEr: strain do AE de reservatório; SLGVE: strain longitudinal global do ventrículo esquerdo. Se remodelamento concêntrico, confirmar com SLGVE. Na presença de FEVEr, tempo de desaceleração da onda E mitral (TDE) < 160 ms e onda S < D pulmonar também são parâmetros de pressão de enchimento aumentada. Esse algoritmo não se aplica a pacientes com fibrilação atrial (FA), calcificação do anel mitral ou valvopatia mitral maior que discreta, bloqueio de ramo esquerdo (BRE), ritmo de marca-passo, próteses valvares ou hipertensão pulmonar (HP) primária grave.

Management of Leak after Single Anastomosis Duodeno-Ileal Bypass with Sleeve Gastrectomy.

The single anastomosis duodeno-ileal bypass with sleeve gastrectomy (SADI-S) has been introduced in the past few years for the treatment of morbid obesity. SADI-S has shown good results in terms of long-term results and short-term complications. However, the management of patients undergoing SADI-S and suffering from a leak is a great challenge for surgeons. We present an extensive review of the currently available literature on the management of leak after SADI in morbid obese (MO) patients. We aim at providing objective information regarding the optimal management, including diagnosis, technical options for the different strategies that have been proposed, to facilitate the selection of the best individual approach for each MO patient.

Position statement on indications of echocardiography in adults ­ 2019

In accordance with the "Standards for the Elaboration of Guidelines, Positions and Normations" sanctioned by the Brazilian Society of Cardiology, this document was written to update the "Echocardiography Indication Guidelines" of 2009. The new document is not intended to be a comprehensive review of echocardiography, but rather an indispensable basic guide to support the rational clinical decision-making of the physician requesting the exam for adult patients. Although it considers the recent technological advances of echocardiography, its purpose is not to describe in detail echocardiography methods, but to summarize in a clear and concise way the main situations in which echocardiography brings benefit to the diagnosis and/or therapeutic orientation of the individual. This manuscript chose to highlight the class of recommendation, as described below: Class I: conditions for which there is conclusive evidence or, in the absence thereof, general agreement that the examination procedure is useful and safe. Class II: conditions for which there is conflicting evidence and/or divergence of opinion on the utility and/or safety of the examination. Class-IIa: evidence or opinions favorable to the examination. Most experts approve. Class IIb: utility and/or safety less well established, with divergent opinions. Class III: conditions for which there is evidence or consensus that the examination is not useful and, in some cases, may even be harmful. In addition, the level of evidence was also described, as follows: A: several concordant randomized clinical trials or robust meta-analyses; B: less robust meta-analysis data or single randomized clinical study or observational studies; C: expert opinion.(AU)

Aplicações do strain e strain rate na avaliação da função diastólica do ventrículo esquerdo / Strain and strain rate applications in the evaluation of left ventricular diastolic function

A análise da função diastólica utilizando a ecocardiografia convencional (método bidimensional, Doppler espectral e Doppler tecidual) pode não determinar alguns casos de disfunção diastólica ou elevação da pressão do átrio esquerdo. Os parâmetros que estudam a deformação miocárdica (strain rate e strain longitudinal do átrio esquerdo) podem auxiliar no diagnóstico. Descrevem-se aqui os métodos do strain rate diastólico durante o tempo de relaxamento isovolumétrico e no pico do enchimento, a taxa de torção apical e o strain longitudinal máximo do átrio esquerdo, analisando suas aplicações e vantagens

Função atrial esquerda pelo método de speckle tracking: além da avaliação volumétrica / Left atrial function using speckle tracking: beyond volumetric evaluation

Atualmente, a avaliação da função atrial esquerda é um método emergente que pode ter relação com o prognóstico dos pacientes. Classicamente, as medidas estáticas de diâmetro, área e volume são as mais usadas com esta finalidade. A técnica conhecida como speckle tracking é capaz de fornecer informações dinâmicas do átrio esquerdo ao longo do ciclo cardíaco, assim como detectar alterações na função atrial esquerda em fases subclínicas, antes de ocorrerem aumentos volumétricos ou disfunções diastólicas. Valores de normalidade para o speckle tracking estão sendo propostos, mas as diferenças metodológicas e de técnicas empregadas dificultam sua padronização. Esta revisão da literatura se propõe a discutir os avanços na análise da função atrial esquerda, em especial via speckle tracking

Avaliação ecocardiográfica das alterações cardíacas tardias provocadas pela Febre Chikungunya / Echocardiographic evaluation of late cardiac abnormalitis caused by the Chikungunya Fever

Fundamento: A febre Chicungunya (CHIKV) provoca dores articulares altamente debilitantes. As complicações são raras, podendo afetar o sistema cardiovascular. Objetivo: Avaliar, com ecocardiografia e strain bidimensional, as alterações cardiovasculares na fase crônica da infecção por CHIKV. Métodos: Foram estudados 32 pacientes, média etária de 56 ± 14 anos, divididos em Grupo A, com evolução < 12 meses (12 pacientes) e Grupo B, com evolução ≥12 meses (20 pacientes). Foram determinadas as dimensões cardíacas, o volume diastólico final do ventrículo esquerdo indexado para superfície corporal; a fração de ejeção do ventrículo esquerdo, o strain longitudinal global do ventrículo esquerdo e o strain longitudinal do átrio esquerdo. Os grupos foram comparados pela análise não pareada. A significância de p foi < 0,05. Resultados: A maioria dos pacientes do Grupo A apresentou hipocontratilidade difusa e diminuição da fração de ejeção do ventrículo esquerdo (45,5 ± 10,4%) com com volume diastólico do ventrículo esquerdo indexado normal (58,7 ± 24,9 mL/m²). A maioria dos pacientes do Grupo B apresentou hipocontratilidade difusa (fração de ejeção do ventrículo esquerdo de 38,2 ± 6,4%) e volume diastólico do ventrículo esquerdo indexado aumentado (88,3 ± 26,4 mL/m²). Foram observadas alterações segmentares em 22% dos pacientes e hipertrofia ou remodelamento em 7 casos de cada Grupo. O strain longitudinal global estava diminuído (-11,9 ± 4,4% no Grupo A e -10,3 ± 3,8% no Grupo B). O strain longitudinal do átrio esquerdo foi de 37,9 ± 17,3% no Grupo A e de 27,5 ± 15,2% no Grupo B. Os pacientes com pericardite apresentavam dimensões e função do VE normais.Conclusão: Entre as complicações cardíacas da febre Chicungunya, a hipocontratilidade difusa com ventrículo esquerdo de dimensões normais foi observada no primeiro ano da evolução crônica e a hipocontratilidade difusa com dilatação do ventrículo esquerdo na evolução mais tardia. Pacientes com espessamento pericárdico não evidenciaram alterações miocárdicas. A ecocardiografia é uma importante ferramenta diagnóstica para os pacientes com infecção por vírus Chicungunya, pois detecta e quantifica as alterações do sistema cardiovascular

Background: Chicungunya fever causes highly debilitating joint pains. Complications are rare and may affect the cardiovascular system. Objective: To evaluate, with echocardiography and two-dimensional strain, the cardiovascular changes in the chronic phase of the Chikungunya infection. Methods: The study included 32 patients, mean age 56 ± 14 years divided into Group A, with < 12 months evolution (12 patients) and Group B, with ≥ 12 months evolution (20 patients). The cardiac dimensions, left ventricular end-diastolic volume indexed to body surface, left ventricular ejection fraction, left ventricular global longitudinal strain and left atrial longitudinal strain were determined. The groups were compared using unpaired analysis. The p significance was < 0.05. Results: Most Group A patients presented diffuse hypocontratility and decreased left ventricular ejection fraction (45.5 ± 10.4%) with normal left ventricular diastolic indexed volume (58.7± 24.9 mL/m²). Most Group B patients presented diffuse hypocontratility (ejection fraction 38.2 ± 6.4%) and increased left ventricular diastolic indexed volume (88.3 ± 26.4 mL/m²). There was segmental changes in 22% of the patients, and hypertrophy or remodelling in seven cases of each Group. There was decreased global longitudinal strain in both Groups (-11.9 ± 4.4% in Group A and -10.3 ± 3.8% in Group B). Lef atrial longitudinal strain were 37.9 ± 17.3% in Group A and 27.5 ± 15.2% in Group B. Patients with pericarditis had normal left ventricular dimensions and function. Conclusion: The cardiac complications of Chikungunya fever was diffuse hypocontratility with left ventricular normal size observed in the first year of chronic evolution and diffuse hypocontratility with left ventricular dilation observed in later evolution. Patients with pericardial thickening did not present myocardial issues. Echocardiography can be used as an important tool in patients with Chikungunya fever, since it can detects early abnormalities in the cardiovascular system

Pentoxifylline, tocopherol, and clodronate for the treatment of mandibular osteoradionecrosis: a systematic review.

OBJECTIVE: The purpose of this study was to evaluate the healing benefit provided by the antioxidant and antifibrotic properties of pentoxifylline-tocopherol or pentoxifylline-tocopherol-clodronate in combination therapy for osteoradionecrosis. STUDY DESIGN: We searched for relevant reports in PubMed by using a combination of "osteoradionecrosis" and the following keywords: "pentoxifillyne," "tocopherol," "vitamin E," or "clodronate." We considered articles in English or Spanish, with no limitations on the publication date. RESULTS: The combination of pentoxifylline plus tocopherol with or without clodronate was found to be effective for the treatment of mandibular osteoradionecrosis, although data were generally scarce and mostly came from retrospective case series. CONCLUSIONS: This drug therapy is well tolerated and could be promising for the treatment of mandibular osteoradionecrosis, but prospective randomized controlled clinical trials are needed for further clarification.

Avaliação da Função Diastólica Utilizando Ecocardiografia Doppler e Strain Bidimensional / Diastolic Function Assessment with Doppler Echocardiography and Two-Dimensional Strain

Fundamento: A avaliação da disfunção diastólica do ventrículo esquerdo (VE) apresenta significativo número de disfunções indeterminadas, principalmente quando a fração de ejeção (FE) está preservada. O strain longitudinal global (SLG), e o strain rate sistólico (SRs) e diastólico precoce (SRd), pode ser útil para reclassificar os pacientes assim diagnosticados. Objetivo: Avaliar, com SLG, SRs e SRd, pacientes com disfunção diastólica, comparar com indivíduos saudáveis e verificar o valor aditivo do método. Métodos: Estudados 149 pacientes (idade 62,2 ± 10,6 anos) com disfunção diastólica (49,7% grau 1; 15,4% grau 2; 18,1% grau 3 e 16,8% indeterminada) e 189 indivíduos sadios (idade 44,5 ± 13,3 anos). Aferidas dimensões e função do VE e átrio esquerdo (AE), velocidades Doppler mitral e tecidual e suas relações, SLG, SRs e SRd do VE. Avaliação dos dados pelos testes de Kolmogorov-Smirnoff, Kruskal-Wallis, análise de regressão múltipla e área sob a curva ROC. Dados significativos quando p < 0,05. Resultados: Na disfunção diastólica as dimensões e espessura do VE estavam aumentadas e verificou-se menor FE. O Doppler mitral e tecidual estava alterado e o volume do AE e a velocidade de refluxo tricúspide estavam aumentados. O SLG e SRs estavam diminuídos na disfunção grau 2 e 3 e o SRd diminuído já na disfunção grau 1, correlacionando-se melhor com a disfunção diastólica. O valor de corte da curva ROC para o SRd foi 1,0 s-1 . Conclusão: A disfunção diastólica complementada com strain rate miocárdico parece acrescentar sensibilidade e especificidade nos casos em que a função diastólica é indeterminada, podendo ser usado para reclassificar estes pacientes

Background: The evaluation of left ventricular (LV) diastolic dysfunction presents a significant number of indeterminate dysfunctions, especially when ejection fraction (EF) is preserved. Global longitudinal strain (GLS) and systolic strain rate (SSR) and early diastolic strain rate (EDSR) may be useful for reclassifying diagnosed patients. Objective: To evaluate, using GLS, SSR and EDSR, patients with diastolic dysfunction, compare with healthy individuals, and determine the additive value of the method. Methods: The study included 149 patients (age 62.2 ± 10.6) with diastolic dysfunction (49.7% grade 1; 15.4% grade 2; 18.1% grade 3 and 16.8% unspecified) and 189 healthy individuals (age 44.5 ± 13.3). Left ventricular (LV) and left atrial (LA) dimensions and function, mitral and tissue Doppler velocities and their ratios, GLS, SSR and EDSR have been determined. Data evaluation using the Kolmogorov-Smirnoff, KruskalWallis tests, multiple regression analysis and area under the ROC curve. Data were considered significant when p < 0.05. Results: In diastolic dysfunction, LV dimensions and thickness were increased and EF was lower. Mitral and tissue Doppler revealed abnormalities and LA volume and tricuspid regurgitation velocity were increased. GLS and EDSR were decreased in dysfunction grade 2 and 3 and EDSR was decreased in dysfunction grade 1, correlating better with diastolic dysfunction. The ROC cutoff value for the EDSR was 1.0 s-1. Conclusion: Diastolic dysfunction supplemented with myocardial strain rate seems to add sensitivity and specificity where the diastolic function is indeterminate and may be used for reclassifying these patients

Aplicação da Ecocardiografia na Detecção Precoce de Cardiotoxicidade por Quimioterapia / Application of Echocardiography in the Early Detection of Cardiotoxicity by Chemotherapy

A cardiotoxicidade produzida por agentes quimioterápicos, especialmente para tratar câncer de mama, presenta significativa incidência, muitas vezes necessitando tratamento específico e/ou obrigando a redução ou suspensão do tratamento quimioterápico. A cardiotoxicidade se caracteriza por provocar dano celular, reversível ou não, que conduz à insuficiência cardíaca. Os principais indicadores dessas alterações podem ser detectados pela ecocardiografia convencional, por meio da fração de ejeção do ventrículo esquerdo e pelas técnicas que avaliam a deformação miocárdica, como o strain longitudinal global, hoje considerados marcadores essenciais para essa análise. Analisa-se a cardiotoxicidade produzida por antraciclinas, anticorpos monoclonais e sua associação, mostrando esta última alarmante incidência, especialmente em pacientes idosas.

Estudo ecocardiográfico do ventrículo direito em pacientes com hipertensão pulmonar por esquistossomose mansoni / Echocardiography of right ventricle in patients with schistosomiasis-induced pulmonary hypertension

Introdução: A esquistossomose, parasitose tropical, pode provocar hipertensão pulmonar grave (HAPE), que leva a remodelamento e disfunção do ventrículo direito (VD), que pode ser detectada pela diminuição da excursão sistólica do anel tricúspide (TAPSE) e da variação de áreas do VD. No VD normal, rico em fibras longitudinais, predomina o strain longitudinal, sendo menor o strain transversal. Objetivo: Avaliar, com ecocardiografia convencional e com strain bidimensional do VD, pacientes portadores de HAPE, comparando os resultados com dados clínicos, hemodinâmicos e com parâmetros ecocardiográficos obtidos em controles sadios. Material: Trinta e dois pacientes com HAPE, média etária de 45 ± 12 anos. Vinte e três controles sadios, média etária de 48 ± 18 anos.Métodos: Foram avaliados os parâmetros de função do VD (variação de áreas e TAPSE) e o gradiente de refluxo tricúspide. Foi determinado o strain longitudinal e transversal do VD em pacientes com HAPE e em controles sadios. Resultados: Entre os pacientes com HAPE e os controles sadios, a variação das áreas foi, respectivamente, 28% e 46% (p = 0,0001), o TAPSE, 1,9 cm e 2,2 cm (p = 0,02); gradiente de regurgitação tricúspide, 76 mmHg e 28 mmHg (p = 0,0001); deformação longitudinal da parede lateral do VD -22% e -37% (p = 0,0001); e deformação transversal 39% e 21% (p = 0,001). Conclusão: Pacientes com HAPE modificaram o padrão de deformação do VD, com aumento do strain transversal, provavelmente por adaptação do VD à sobrecarga pressórica. O ecocardiograma convencional também foi útil paraavaliar a função do VD na HAPE.

Introduction: Schistosomiasis is a tropical parasitic disease may cause severe pulmonary hypertension (SIPH), which leads to right ventricular (RV) remodeling and dysfunction, which can be detected by decreased tricuspid annular plane systolic excursion (TAPSE) and variation of RV areas. In normal RV, rich in longitudinal fibers, longitudinal strain prevails, and transverse strain is smaller. Objective: To assess, using conventional echocardiography and two-dimensional RV strain, patients with SIPH, comparing the results with clinical and hemodynamic data and echocardiographic parameters obtained from healthy controls. Material: Thirty-two patients with SIPH, mean age 45 ± 12 years old. Twenty-three healthy controls, mean age 48 ± 18 years old. Methods: RV function parameters (range of areas and TAPSE) and the tricuspid regurgitation gradient were evaluated. Longitudinal and transverse RV strain RV were determined in patients with SIPH and in healthy controls. Results: Among SIPH patients and healthy controls, the variation of areas was 28% and 46%, respectively (p = 0.0001), TAPSE was 1.9 cm and 2.2 cm (p = 0.02); tricuspid regurgitation gradient was 76 mmHg and 28 mmHg (p = 0.0001); RV sidewall longitudinal strain -22% and -37%(p = 0.0001); and transverse strain of 39% and 21% (p = 0.001). Conclusion: Patients with SIPH changed the RV strain pattern with increased transverse strain, probably due to RV adaptation to pressure overload. Conventional echocardiography was also useful to assess RV function in SIPH.