Acometimento da função ventricular direita em pacientes com esclerose sistêmica e doença pulmonar intersticial: avaliação pelo doppler tecidual / Impairment of right ventricular function in patients with systemic sclerosis and interstitial lung disease: tissue doppler evaluation

Introdução: A esclerose sistêmica (ES) é uma doença autoimune do tecido conjuntivo que cursa com fibrose e disfunção microvascular. O envolvimento dos órgãos viscerais, incluindo os pulmões e o coração, é a principal causa de óbito na ES. Nesse contexto, analisamos a relação entre os parâmetros ventriculares direitos (VD) pela ecocardiografia com Doppler tecidual e o acometimento pulmonar em pacientes com ES. Métodos: Os pacientes que preencheram os Critérios de Classificação da ES de 2013 foram submetidos à ecocardiografia com Doppler tecidual para avaliação da função sistólica (fração de ejeção) ventricular esquerda (VE), enquanto a função sistólica do VD foi avaliada por meio da fração de variação de área do VD (fractional area change ­ FAC), velocidade (sistólica) do Doppler tecidual, índice de desempenho miocárdico (IDM) e excursão sistólica do plano anular tricúspide (TAPSE). A pressão sistólica pulmonar foi estimada por insuficiência tricúspide. A tomografia computadorizada de alta resolução (TCAR) de tórax avaliou a presença de fibrose pulmonar. De acordo com os resultados da TCAR, os pacientes foram divididos em 2 subgrupos: Grupo I, incluindo pacientes com fibrose pulmonar (n=26), e Grupo II sem fibrose (n=17). Resultados: Entre os 43 pacientes com ES, a maioria era do sexo feminino (86%) com idade de 51±12 anos. Todos os pacientes apresentavam função ventricular sistólica normal, avaliada pela FEVE>55% e FAC VD>35%. Não houve diferença significativa em termos de idade ou duração da doença para os grupos. Exceto pela diminuição das velocidades do Doppler tecidual em pacientes com fibrose pulmonar, todos os índices de desempenho do VD foram semelhantes. Conclusão: Em pacientes com ES e fibrose pulmonar, o Doppler tecidual identifica acometimento miocárdico longitudinal precoce do VD, apesar do desempenho sistólico radial preservado do VD.(AU)

Introduction: Systemic sclerosis (SSc) is an autoimmune tissue connective disease that courses with fibrosis and microvascular dysfunction. Involvement of the visceral organs, including the lungs and heart, is the main cause of death among patients with SSc. In this context, here we analyzed the relationship between right ventricle (RV) parameters assessed by tissue Doppler echocardiography and lung involvement in patients with SSc. Methods: Patients fulfilling the 2013 SSc Classification Criteria underwent tissue Doppler echocardiography for the assessment of left ventricular (LV) systolic function (ejection fraction) and RV fractional area change (FAC), tissue Doppler s' (systolic) velocity, myocardial performance index, and tricuspid annular plane systolic excursion for the assessment of RV systolic function. Pulmonary systolic pressure was estimated using tricuspid regurgitation. Chest high-resolution computed tomography was used to evaluate the presence of pulmonary fibrosis. The patients were divided into two subgroups accordingly: Group I, patients with pulmonary fibrosis (n=26); and Group II, those without fibrosis (n=17). Results: Among the 43 patients with SSc, most were female (86%), and the mean age was 51 ± 12 years. All patients had normal systolic ventricular function as evidenced by an LV ejection fraction > 55% and an RV FAC > 35%. No significant intergroup difference was noted in age or disease duration. Except for a decreased tissue Doppler s' velocity in patients with lung fibrosis, all indexes of RV performance were similar. Conclusion: In patients with SSc and pulmonary fibrosis, tissue Doppler identified early RV longitudinal myocardial involvement despite preserved RV radial systolic performance.(AU)

Evaluation of Left Ventricular Diastolic Function by Echocardiography with Tissue Doppler in Systemic Sclerosis / Avaliação da Função Diastólica do Ventrículo Esquerdo com Ecocardiografia Associada a Doppler Tecidual na Esclerose Sistêmica

Abstract Background: Systemic sclerosis (SS) is a connective tissue abnormality characterized by fibrosis of the skin and internal organs. Cardiac involvement with consequent myocardial dysfunction in SS is associated with increased morbidity and mortality. Objective: To investigate the left ventricular (LV) diastolic function in patients with SS and preserved systolic function. Methods: Patients with SS were evaluated with two-dimensional echocardiography with tissue Doppler for analysis of chamber diameters, LV mass index (LVMI), indexed left atrial volume (iLAV), systolic function of both ventricles, and presence and degree of diastolic dysfunction (DD). Results: We evaluated 50 patients, divided according to the presence of DD into Group 1 (n = 25; normal diastolic function, E/A ratio ≥ 0.8, deceleration time [DT] > 150 ms and < 200 ms, and septal e' > 8 cm/s) and Group 2 (n = 25; with DD, subdivided into type I DD [E/A < 0.8, DT > 200 ms], type II [E/A ≥ 0.8, septal e' < 8 cm/s, iLAV > 34 mL/m2], and type III [E/A > 2, DT < 150 ms, septal e' < 8 cm/s]). Type I DD was the most frequent (34%), followed by type II DD (16%). LVMI and iLAV were similar in both groups, but septal and lateral e' were reduced only in Group 2. In Group 2, we observed that patients with moderate DD had longer disease duration (p = 0.02). Conclusion: The prevalence of type I DD was elevated in SS and associated with aging. Disease duration emerged as an important factor in moderate DD.

Resumo Fundamento: A esclerose sistêmica (ES) é uma anomalia do tecido conjuntivo caracterizada por fibrose da pele e dos órgãos internos. O envolvimento cardíaco com consequente disfunção miocárdica na ES está associado a uma maior morbimortalidade. Objetivo: Investigar a função diastólica do ventrículo esquerdo (VE) em pacientes com ES e função sistólica preservada. Método: Pacientes com ES foram estudados com ecocardiografia bidimensional com Doppler tecidual para análise dos diâmetros cavitários, índice de massa do VE (IMVE), volume indexado do átrio esquerdo (VAEi), função sistólica biventricular e presença, além de grau de disfunção diastólica (DD) pelo Doppler convencional e tecidual. Resultados: Estudamos 50 pacientes, divididos conforme presença de DD em Grupo 1 (n = 25; função diastólica normal, razão E/A ≥ 0,8, tempo de desaceleração [TD] > 150 ms e < 200 ms e e' septal > 8 cm/s) e Grupo 2 (n = 25; com presença de DD, subdividido em DD tipo I [E/A < 0,8, TD > 200 ms], tipo II [E/A ≥ 0,8, e' septal < 8 cm/s, VAEi > 34 mL/m2] e tipo III [E/A > 2, TD < 150 ms, e' septal < 8 cm/s]. A DD tipo I foi a mais frequente (34%), seguida de DD tipo II (16%). O IMVE e o VAEi foram similares entre os grupos, porém a e' septal e lateral estiveram reduzidas apenas no Grupo 2. No Grupo 2, observamos que os pacientes com DD moderada apresentavam maior duração da doença (p = 0,02). Conclusão: A prevalência de DD tipo I foi elevada na ES e esteve associada ao envelhecimento. No caso da DD moderada, a duração da doença despontou como um fator importante.

Evaluation of Left Ventricular Diastolic Function by Echocardiography with Tissue Doppler in Systemic Sclerosis.

BACKGROUND: Systemic sclerosis (SS) is a connective tissue abnormality characterized by fibrosis of the skin and internal organs. Cardiac involvement with consequent myocardial dysfunction in SS is associated with increased morbidity and mortality. OBJECTIVE: To investigate the left ventricular (LV) diastolic function in patients with SS and preserved systolic function. METHODS: Patients with SS were evaluated with two-dimensional echocardiography with tissue Doppler for analysis of chamber diameters, LV mass index (LVMI), indexed left atrial volume (iLAV), systolic function of both ventricles, and presence and degree of diastolic dysfunction (DD). RESULTS: We evaluated 50 patients, divided according to the presence of DD into Group 1 (n = 25; normal diastolic function, E/A ratio ≥ 0.8, deceleration time [DT] > 150 ms and < 200 ms, and septal e' > 8 cm/s) and Group 2 (n = 25; with DD, subdivided into type I DD [E/A < 0.8, DT > 200 ms], type II [E/A ≥ 0.8, septal e' < 8 cm/s, iLAV > 34 mL/m2], and type III [E/A > 2, DT < 150 ms, septal e' < 8 cm/s]). Type I DD was the most frequent (34%), followed by type II DD (16%). LVMI and iLAV were similar in both groups, but septal and lateral e' were reduced only in Group 2. In Group 2, we observed that patients with moderate DD had longer disease duration (p = 0.02). CONCLUSION: The prevalence of type I DD was elevated in SS and associated with aging. Disease duration emerged as an important factor in moderate DD.

Impacto do fentanil associado ao midazolam na sedação para ecocardiograma transesofágico / Impact of fentanyl associated with midazolam in sedation for transesophageal echocardiography / Impacto del Fentanil Asociado al Midazolam en la Sedación para Ecocardiograma Transesofágico

Introdução: O ecocardiograma transesofágico é atualmente uma das principais ferramentas no diagnóstico de diversas alterações cardíacas. Para uma maior segurança e conforto na sua realização, o exame tem sido realizado sob sedação consciente moderada, sendo os benzodiazepínicos os agentes de escolha. Nessa classe de medicamentos, o midazolam é o mais utilizado, todavia não está isento de possíveis complicações relacionadas ao seu uso, como hipóxia, hipotensão, entre outras. Sabemos que grau de sedação é dose-dependente, portanto, quanto menor a dose utilizada, será menor o risco de complicações do procedimento.Objetivo: Verificar o impacto do uso do fentanil na administração endovenosa de midazolam, no intuito de avaliar eficiência de protocolo de sedação de pacientes submetidos a ecocardiograma transesofágico, utilizando ambos os medicamentos. Metodologia: : Estudamos 201 pacientes (idade média de 51,5 anos, 115 homens) submetidos a ecocardiograma transesofágico, com sedação por via endovenosa divididos em dois grupos: Grupo A (n = 89), seguindo protocolo definido com uso de fentanil associado ao midazolam; e Grupo B (n = 112), sem o emprego de fentanil. Comparou-se então a dosagem de midazolam administrada em ambos os grupos. Monitorização adequada dos sinais vitais foi realizada durante todo o procedimento. Resultados: A dose média de midazolam utilizada foide 2,6 ± 1,4 mg no Grupo A e de 4,0 ± 2,7 mg no Grupo B (p < 0,01). A dose de fentanil empregada foi de 66,2 ± 24,8 mcg. Não houve diferença significativa entre idade (p = 0,08) e gênero (p > 0,1) nos grupos estudados. Conclusão: O uso de fentanil na sedação para realização de ecocardiograma transesofágico associado à administração de midazolam permite a administração de uma dose menor desse benzodiazepínico.

Introduction: Transesophageal echocardiography is currently one of the main tools in the diagnosis of various cardiac abnormalities. For greater safety and comfort, the test has been performed under moderate conscious sedation and benzodiazepines were the agents of choice. In this class of drugs, midazolam is the most commonly used, however it is not free of potential complications related to its use, such as hypoxia, hypotension, among others. We know that sedation level is dose-dependent. Therefore, the lower the dose, the lower the risk of complications from the procedure.Objective: To check the impact of fentanyl in the intravenous administration of midazolam in order to assess the sedation protocol efficiency on patients undergoing transesophageal echocardiography using both drugs.Methodology: We have studied 201 patients (mean age 51.5 years, 115 men) who underwent transesophageal echocardiography with intravenous sedation divided into two groups: Group A (n = 89), following the protocol with fentanyl associated with midazolam; and Group B (n = 112) without the use of fentanyl. The dose of midazolam administered in both groups was then compared. Proper monitoring of vital signs was performed throughout the procedure.Results: The mean dose of midazolam used was 2.6 ± 1.4 mg in Group A and 4.0 ± 2.7 mg in Group B (p < 0.01). The dose of fentanyl used was 66.2 ± 24.8 mcg. There was no significant difference between age (p = 0.08) and gender (p > 0.1) in the groups studied. Conclusion: The use of fentanyl in sedation for transesophageal echocardiography associated with administration of midazolam allows the administration of a lower dose of this benzodiazepine.

Introducción: El ecocardiograma transesofágico es actualmente una de las principales herramientas en el diagnóstico de diversas alteraciones cardíacas. Para una mayor seguridad y confort en su realización, el examen ha sido realizado bajo sedación conciente moderada, siendo los benzodiazepínicos los agentes de elección. En esa clase de medicamentos, el midazolam es el más utilizado, sin embargo no está exento de posibles complicaciones relacionadas a su uso, como hipoxia, hipotensión, entre otras. Sabemos que grado de sedación es dosis-dependiente, por lo tanto, cuanto menor es la dosis utilizada, será menor el riesgo de complicaciones del procedimiento.Objetivo: Verificar el impacto del uso del fentanil en la administración endovenosa de midazolam, con el propósito de evaluar eficiencia de protocolo de sedación de pacientes sometidos a ecocardiograma transesofágico, utilizando ambos medicamentos.Metodología: Estudiamos 201 pacientes (edad media de 51,5 anos, 115 hombres) sometidos a ecocardiograma transesofágico, con sedación por vía endovenosa divididos en dos grupos: Grupo A (n = 89), siguiendo protocolo definido con uso de fentanil asociado al midazolam; y Grupo B (n = 112), sin el empleo de fentanil. Se comparó entonces el dosaje de midazolam administrada en ambos grupos. Monitoreo adecuado de los signos vitales fue realizada durante todo el procedimiento. Resultados: La dosis media de midazolam utilizada fue de 2,6 ± 1,4 mg en el Grupo A y de 4,0 ± 2,7 mg en el Grupo B (p < 0,01). La dosis de fentanil empleada fue de 66,2 ± 24,8 mcg. No hubo diferencia significativa entre edad (p = 0,08) y género (p > 0,1) en los grupos estudiados. Conclusión: El uso de fentanil en la sedación para realización de ecocardiograma transesofágico asociado a la administración de midazolam permite la administración de una dosis menor de ese benzodiazepínico

Parâmetros Ecocardiográficos e Sobrevida na Cardiopatia Chagásica com Disfunção Sistólica Importante / Echocardiographic Parameters and Survival in Chagas Heart Disease with Severe Systolic Dysfunction

Fundamento: O ecocardiograma fornece dados importantes na avaliação cardiológica de pacientes em insuficiência cardíaca. A identificação de parâmetros ecocardiográficos na cardiopatia chagásica grave auxiliaria na implementação terapêutica e na avaliação prognóstica. Objetivo: Correlacionar parâmetros ecocardiográficos com desfecho mortalidade cardiovascular em pacientes com fração de ejeção < 35%. Métodos: Estudo de análise retrospectiva de parâmetros ecocardiográficos coletados prospectivamente e pré-especificados em 60 pacientes incluídos no Estudo Multicêntrico Randomizado de Terapia Celular em Cardiopatias - braço cardiopatia chagásica. Os parâmetros foram: diâmetros e volumes diastólico e sistólico do ventrículo esquerdo, fração de ejeção, diâmetro do átrio esquerdo, volume do átrio esquerdo, volume indexado do átrio esquerdo, pressão sistólica da artéria pulmonar, integral da velocidade do fluxo aórtico, índice de performance miocárdica, taxa de aumento da pressão do ventrículo esquerdo, tempo de relaxamento isovolumétrico, velocidade das ondas E, A, Em, Am e Sm, tempo de desaceleração da onda E, relação E/A , E/Em e insuficiência mitral. Resultados: No seguimento médio de 24,18 meses, 27 pacientes faleceram. a fração de ejeção média era de 26,6 ± 5,34%. Na análise multivariada, foram incluídos os parâmetros de fração de ejeção (HR = 1,114; p = 0,3704), volume indexado do átrio esquerdo (HR = 1,033; p < 0,0001) e relação E/Em (HR = 0,95; p = 0,1261). O volume indexado do átrio esquerdo foi um fator de predição independente em ...

Background: Echocardiography provides important information on the cardiac evaluation of patients with heart failure. The identification of echocardiographic parameters in severe Chagas heart disease would help implement treatment and assess prognosis. Objective: To correlate echocardiographic parameters with the endpoint cardiovascular mortality in patients with ejection fraction < 35%. Methods: Study with retrospective analysis of pre-specified echocardiographic parameters prospectively collected from 60 patients included in the Multicenter Randomized Trial of Cell Therapy in Patients with Heart Diseases (Estudo Multicêntrico Randomizado de Terapia Celular em Cardiopatias) - Chagas heart disease arm. The following parameters were collected: left ventricular systolic and diastolic diameters and volumes; ejection fraction; left atrial diameter; left atrial volume; indexed left atrial volume; systolic pulmonary artery pressure; integral of the aortic flow velocity; myocardial performance index; rate of increase of left ventricular pressure; isovolumic relaxation time; E, A, Em, Am and Sm wave velocities; E wave deceleration time; E/A and E/Em ratios; and mitral regurgitation. Results: In the mean 24.18-month follow-up, 27 patients died. The mean ejection fraction was 26.6 ± 5.34%. In the multivariate analysis, the parameters ejection fraction (HR = 1.114; p = 0.3704), indexed left atrial volume (HR = 1.033; p < 0.0001) and E/Em ratio (HR = 0.95; p = 0.1261) were excluded. The indexed left atrial volume was an independent predictor in relation to the endpoint, and values > 70.71 mL/m2 were associated with a significant increase in mortality (log rank p < 0.0001). Conclusion: The indexed left atrial volume was the only independent predictor of mortality in this population of Chagasic patients with severe systolic dysfunction. .

Echocardiographic parameters and survival in Chagas heart disease with severe systolic dysfunction.

BACKGROUND: Echocardiography provides important information on the cardiac evaluation of patients with heart failure. The identification of echocardiographic parameters in severe Chagas heart disease would help implement treatment and assess prognosis. OBJECTIVE: To correlate echocardiographic parameters with the endpoint cardiovascular mortality in patients with ejection fraction < 35%. METHODS: Study with retrospective analysis of pre-specified echocardiographic parameters prospectively collected from 60 patients included in the Multicenter Randomized Trial of Cell Therapy in Patients with Heart Diseases (Estudo Multicêntrico Randomizado de Terapia Celular em Cardiopatias) - Chagas heart disease arm. The following parameters were collected: left ventricular systolic and diastolic diameters and volumes; ejection fraction; left atrial diameter; left atrial volume; indexed left atrial volume; systolic pulmonary artery pressure; integral of the aortic flow velocity; myocardial performance index; rate of increase of left ventricular pressure; isovolumic relaxation time; E, A, Em, Am and Sm wave velocities; E wave deceleration time; E/A and E/Em ratios; and mitral regurgitation. RESULTS: In the mean 24.18-month follow-up, 27 patients died. The mean ejection fraction was 26.6 ± 5.34%. In the multivariate analysis, the parameters ejection fraction (HR = 1.114; p = 0.3704), indexed left atrial volume (HR = 1.033; p < 0.0001) and E/Em ratio (HR = 0.95; p = 0.1261) were excluded. The indexed left atrial volume was an independent predictor in relation to the endpoint, and values > 70.71 mL/m2 were associated with a significant increase in mortality (log rank p < 0.0001). CONCLUSION: The indexed left atrial volume was the only independent predictor of mortality in this population of Chagasic patients with severe systolic dysfunction.

Oclusão percutânea do apêndice atrial esquerdo: relato de caso / Percutaneous left atrial appendage occlusion: case report / Oclusión Percutánea del Apéndice Auricular Izquierdo - Relato del Caso

A anticoagulação com varfarina é eficaz na redução do risco de eventos cardioembólicos nos pacientes com fibrilação atrial,entretanto, diversos fatores podem limitar seu uso. A oclusão percutânea do apêndice atrial esquerdo representa um método minimamente invasivo, que pode ter resultados semelhantes aos da varfarina, na prevenção de eventos cardioembólicos em pacientes de maior risco. Relatamos os aspectos do ecocardiograma transesofágico em um paciente com fibrilação atrial permanente, com repetidos episódios tromboembólicos e dificuldade em atingir adequado controle laboratorial com o uso da anticoagulação oral e submetido à oclusão percutânea do apêndice atrial esquerdo.

Anticoagulation with warfarin is effective in reducing the risk of cardioembolic events in patients with atrial fibrillation, however, several factors may limit its use. The percutaneous closure of the left atrial appendage is a minimally invasive method that may have results similar to warfarin in the prevention of cardioembolic events in high risk patients. We describe the transesophageal echocardiographic features in a patient with persistente atrial fibrillation, with repeated thromboembolic episodes and difficulty in achieving adequate laboratory control with the use of oral anticoagulation, submitted to percutaneous occlusion of the left atrial appendage.

La anticoagulación con warfarina es eficaz en la reducción del riesgo de episodios cardioembólicos en los pacientes con fibrilación auricular, y sin embargo, diversos factores pueden limitar su uso. La oclusión percutánea del apéndice auricular izquierdo representa un método mínimamente invasivo, que puede dar resultados semejantes a los de la warfarina, para la prevención de episodios cardioembólicos en pacientes de mayor riesgo. Relatamos los aspectos del ecocardiograma transesofágico en un paciente con fibrilación auricular crónica, con repetidos episodios tromboembólicos y dificultad para conseguir un adecuado control de laboratorio con el uso de la anticoagulación oral y sometido a la oclusión percutánea del apéndice auricular izquierdo

Importance of adequately performed Valsalva maneuver to detect patent foramen ovale during transesophageal echocardiography.

BACKGROUND: Transesophageal echocardiography (TEE) plays an important role in evaluating cardioembolic sources of emboli. The identification of a patent foramen ovale (PFO) is reportedly improved with TEE compared with transthoracic echocardiography (TTE), but the Valsalva maneuver during TEE may be difficult or suboptimal. The aim of this study was to assess the efficacy of the Valsalva maneuver for PFO diagnosis using TEE compared with TTE by evaluating patients with ischemic stroke referred for echocardiography. METHODS: Only patients able to perform the Valsalva maneuver during TTE were included; efficacy was defined by a 20 cm/sec decrease in transmitral E velocity. A PFO was judged present when microbubbles of agitated intravenous saline were seen in the left chambers within three cycles after right atrial opacification. RESULTS: Of 108 patients (mean age, 55 ± 15 years; 61 men), 48 (44%) were judged to have PFOs by TEE and/or TTE. In 36 patients (33% of the total, 75% of those with PFOs), microbubbles were observed both by TEE and TTE, in seven patients only during TTE, and in five patients only during TEE. In patients able to satisfactorily perform the Valsalva maneuver during TEE, 22 PFOs were found, and two shunts (9%) were missed, whereas in patients unable to perform this maneuver, 26 PFOs were observed, with five shunts missed (19%) (P < .05). When a PFO was missed by TTE, either the echocardiographic window was suboptimal or the shunt was small. CONCLUSIONS: An adequate Valsalva maneuver is crucial for diagnosis of PFO; most patients with stroke may be screened using TTE with contrast and the Valsalva maneuver, with TEE indicated in case of suboptimal transthoracic images.

Cardiac obstruction secondary to metastatic invasion - A rare complication of Human Herpes Virus 8-positive plasmablastic lymphoma in acquired immunodeficiency syndrome.

Human herpes virus 8 (HHV8)-positive plasmablastic lymphoma (PBL) is a particularly rare and aggressive subtype of non-Hodgkin lymphoma, strongly associated with human immunodeficiency virus infection, with poor response to therapy and short survival. Characteristically, it shows proliferation of large plasmablastic cells with often eccentrically placed nuclei, with immunohistochemical assay positive for HHV8 latent nuclear antigen 1 and IgM. Primary mediastinal occurrence of a HHV8-positive PBL is rare and metastatic disease even more uncommon; tumor invasion to the heart leading to intracardiac obstruction with a rapidly fatal disease course has not been previously described.

Endophthalmitis as a first manifestation of right-sided endocarditis in a patient with patent foramen ovale.

Endogenous endophthalmitis is a rare complication of endocarditis, rendering poor visual prognosis. We report a case of a 66-year-old female with renal failure who presented with fever, ocular pain, and purulent eye discharge. After a diagnosis of endogenous endophthalmitis, she was treated with antibiotics and enucleation of the eye. Due to persistent fever and positive blood cultures, a transesophageal echocardiography was undertaken, disclosing a large mural vegetation in the right atrium, catheter-associated vegetations, and a patent foramen ovale. Endocarditis is an uncommon source of endogenous endophthalmitis, and has rarely been associated to right-sided endocarditis and paradoxical septic embolization.

Jacaranda cuspidifolia Mart. (Bignoniaceae) as an antibacterial agent.

This study evaluated, in vitro, the antimicrobial activity of the hexane extract (JCHE), methanol extract (JCME), and chloroform fraction (JCCF) of bark from Jacaranda cuspidifolia Mart. (Family Bignoniaceae), a Brazilian medicinal plant, traditionally used as anti-syphilis and anti-gonorrhea treatment. The antimicrobial activity was evaluated using the disc diffusion method followed by the determination of minimum inhibitory concentration (MIC) values. JCHE was not active against the bacteria evaluated. JCME presented antibacterial activity against Streptococcus pyogenes, Staphylococcus aureus, and Neisseria gonorrhoeae with MIC values of 16.3 mg/mL, 9.1 mg/mL, and 25.2 mg/mL, respectively. JCCF was active against Staphylococcus epidermidis, S. aureus, Proteus mirabilis, Serratia marcescens, S. pyogenes, Enterobacter aerogenes, and N. gonorrhoeae with MIC values of 18.3 mg/mL, 9.3 mg/mL, 6.3 mg/mL, 6.1 mg/mL, 9.2 mg/mL, 6.2 mg/mL, and 25.2 mg/mL, respectively. Phytochemical analysis of JCME and JCCF gave positive results for saponins, coumarins, flavonoids, tannins, quinones, alkaloids, triterpenes, and steroids. Verbascoside was isolated and identified as a major peak in JCME and JCCF high-performance liquid chromatography fingerprints and might contribute to the observed antimicrobial activity.

Exercise capacity, breathing pattern, and gas exchange during exercise for patients with isolated diastolic dysfunction.

BACKGROUND: Left ventricular diastolic dysfunction (DiaD) is as common as left ventricular systolic dysfunction. Whether these causes of heart failure lead to similar breathing pattern and gas exchange responses to exercise remains unclear. METHODS: Participants (control subjects [n = 47], systolic dysfunction [n = 46], and DiaD [n = 40]) underwent resting echocardiograms and cardiopulmonary exercise testing. RESULTS: Patients demonstrated lower peak oxygen consumption and tidal volume than control subjects (P < .05). Ventilation tended to be highest in DiaD. The submaximal ventilatory equivalent for carbon dioxide was highest in DiaD. Left atrial volume (all groups) was correlated with peak oxygen consumption (r = -0.38) whereas the ratio of early mitral inflow velocity to early mitral annular velocity was related to peak oxygen consumption (r = -0.36) and treadmill time (r = -0.35). CONCLUSION: Isolated DiaD is associated with altered breathing pattern and gas exchange similar to systolic dysfunction. Elevated left atrial volume, higher early mitral inflow velocity to early mitral annular velocity ratio, or both are predictive of exercise capacity and elevated ventilatory responses in patients with DiaD suggesting a role for dysfunctional ventricular relaxation.

Dobutamine stress echocardiography in patients with diabetes mellitus: enhanced prognostic prediction using a simple risk score.

OBJECTIVES: We sought to determine the prognostic value of dobutamine stress echocardiography (DSE) for predicting long-term outcomes in a large cohort with diabetes mellitus and to develop a simple risk score using clinical and echocardiographic data. BACKGROUND: Neither risk scores nor long-term prognostic value of DSE has been described in a large diabetic population. METHODS: We studied 2,349 patients with diabetes mellitus (1,338 men, 67 +/- 11 years of age) during a follow-up of 5.4 +/- 2.2 years. RESULTS: Mortality and morbidity (myocardial infarction and late coronary revascularization) occurred in 1,044 (44%) and 309 (13%) patients, respectively. Addition of stress echocardiographic variables to the clinical and rest echocardiographic model provided incremental prognostic information for predicting mortality (chi-square = 243 to 270, p < 0.0001) and morbidity (chi-square = 38 to 78, p < 0.0001). For each end point, a simple risk score was derived according to the estimated values of beta coefficients of multivariate predictors (insulin therapy, smoking, failure to achieve target heart rate, percentage of ischemic segments, and impaired left ventricular systolic function) and resulted in an assessment of risk among all age groups. The C-statistic values were 0.60 to 0.64, indicating modest discrimination. The estimated five-year event-free survivals of patients in three risk categories were 94%, 86%, and 80% for morbidity (p < 0.00001) and 69%, 60%, and 47% for mortality (p < 0.0001). CONCLUSIONS: In patients with diabetes mellitus, a simple and practical risk score using clinical variables and results of DSE stratified patients into three risk groups for mortality and cardiovascular morbidity.

Prognostic significance of ST-segment elevation during dobutamine stress echocardiography.

BACKGROUND: Limited data are available concerning the significance of ST-segment elevation during dobutamine stress echocardiography (DSE). The purpose of this study was to assess the prognostic significance of new ST-segment elevation during DSE and its relationship to angiographic severity of coronary artery disease (CAD). METHODS: From 4240 consecutive patients who had DSE, we identified 134 (3%) patients with new stress-induced ST-segment elevation > or =1 mm in at least two contiguous electrocardiographic leads. Significant CAD was considered as > or =50% diameter obstruction by angiography. Follow-up was obtained for cardiac events. RESULTS: Age was 69 +/- 10 years; 84 (63%) were men. ST-segment elevation developed in the anterior leads in 55 (41%), inferior leads in 100 (75%), and lateral leads in 54 (40%); 56 (42%) had ST elevation in more than one region. Dobutamine stress echocardiography was abnormal in all patients; 115 (86%) had ischemia. Coronary angiography was obtained in 69 (51%) patients. Stenosis was > or =70% diameter in 68 (99%) patients and multivessel in 53 (77%). Follow-up (2.6 +/- 2.8 years) was obtained in all 134 patients. Events occurred in 103 (77%) patients, including death in 53, coronary revascularization in 33, myocardial infarction in 12, and unstable angina in 5. Event-free survival was 55% at 2 years, 38% at 4 years, and 28% at 5 years. CONCLUSIONS: Patients with stress-induced ST-segment elevation during DSE commonly have severe CAD and are at high risk for events during follow-up. These patients should be considered for coronary angiography.

[Left ventricular pseudoaneurysm associated to severe mitral insufficiency, complicating inferolaterodorsal acute myocardial infarction]. / Pseudoaneurisma de ventrículo esquerdo associado a insuficiência mitral grave complicando infarto agudo do miocárdio ínfero-látero-dorsal.

We described a case of left ventricular pseudoaneurysm associated to a severe mitral regurgitation, complicating a inferolaterodorsal acute myocardial infarction. The lesion was found in a routine echocardiogram during the in-hospital follow-up. The well-succeeded surgical strategy and the good clinical evolution of the patient were distinguished.

Pseudoaneurisma de ventrículo esquerdo associado a insuficiência mitral grave complicando infarto agudo do miocárdio ínfero-látero-dorsal / Left ventricular pseudoaneurysm associated to severe mitral insufficiency, complicating inferolaterodorsal acute myocardial infarction

Descrevemos um caso de pseudoaneurisma de ventrículo esquerdo associado a grave regurgitacão mitral, complicando um infarto ínfero-látero-dorsal. A lesão foi descoberta em ecocardiograma de rotina durante o seguimento ambulatorial. Destacam-se a estratégia cirúrgica bem sucedida, e a boa evolucão clínica da paciente.

Delineamento dos bordos do endocárdio durante a infusäo de dobutamina-atropina utilizando contraste ecocardiográfico / Endocardial border delineation during dobutmine-atropine infusion utilizing echocardiographic contrast agent

Há um número significante de imagens subótimas em ecocardiogramas sob estresse pela dobutamina-atropina. A infusão intravenosa de contraste ecocardiográfico pode melhorar o delineamento dos bordos do endocárdio durante o exame, facilitando significativamente a análise da contratilidade segmentar do ventrículo esquerdo. Foram estudados 68 pacientes (41 do sexo masculino e 27 do sexo feminino, idade média de 60 anos) submetidos ao ecocardiograma sob estresse pela dobutamina-atropina, perfazendo um total de 2.176 segmentos do ventrículo esquerdo, analisados em repouso e no pico do estresse. Foi empregada uma associação das técnicas de imagens em segunda harmônica e contraste ecocardlográfico (PESDA(L). Os índices do escore de delineamento endocárdico foram analisados por um sistema de pontuação para cada um dos segmentos do ventrículo esquerdo e também para as diferentes paredes do ventrículo esquerdo. Em repouso sem contraste os índices do escore de delineamento endocárdico foram 1,46 e com contraste 2,22. No pico do estresse sem contraste, os mesmos índices foram 1,30 e com contraste 2,29. Melhora semelhante foi observada também nas diferentes paredes estudadas, com exceção das paredes septal anterior, posterior e inferior. Conclui-se que a infusão intravenosa de contraste ecocardiográfico melhorou significativamente o delineamento dos bordos endocárdicos nesses pacientes submetidos ao ecocardiograma sob estresse pela dobutamina-atropina. O fato deve ter implicações diretas na acurácia diagnostica do exame

Andragogia na educação em enfermagem / Andragogy in nursing education

Andragogia é uma palavra pouco conhecida, conceituada como a ciência da educação de adultos...