Overexpression of CsSAMT in Citrus sinensis Induces Defense Response and Increases Resistance to Xanthomonas citri subsp. citri.

Citrus canker is a destructive disease caused by Xanthomonas citri subsp. citri, which affects all commercial sweet orange (Citrus sinensis [L.] Osbeck) cultivars. Salicylic acid (SA) and systemic-acquired resistance (SAR) have been demonstrated to have a crucial role in mediating plant defense responses against this phytopathogen. To induce SAR, SA is converted to methyl salicylate (MeSA) by an SA-dependent methyltransferase (SAMT) and translocated systemically to prime noninfected distal tissues. Here, we generated sweet orange transgenic plants (based on cvs. Hamlin and Valencia) overexpressing the SAMT gene from Citrus (CsSAMT) and evaluated their resistance to citrus canker. We obtained four independent transgenic lines and confirmed their significantly higher MeSA volatilization compared to wild-type controls. Plants overexpressing CsSAMT showed reduced symptoms of citrus canker and bacterial populations in all transgenic lines without compromising plant development. One representative transgenic line (V44SAMT) was used to evaluate resistance response in primary and secondary sites. Without inoculation, V44SAMT modulated CsSAMT, CsNPR1, CsNPR3, and CsWRKY22 expression, indicating that this plant is in a primed defense status. The results demonstrate that MeSA signaling prompts the plant to respond more efficiently to pathogen attacks and induces immune responses in transgenic plants at both primary and secondary infection sites.

Penile refracture: a preliminary report.

OBJECTIVE: To report our institutional experience with penile refracture, including demographic data, recurrence time, etiology and operative findings in the first and second episodes. MATERIALS AND METHODS: Between January 1982 and September 2017, 281 patients underwent surgical treatment for penile fracture (PF) at our institution. Demographic data, clinical presentation, besides operative findings and follow-up of patients with relapsed PF were retrospectively assessed by reviewing medical records. RESULTS: Of a total of 281 cases of PF operated at our institution, 3 (1.06%) patients experienced two episodes of trauma. Age ranged from 38 - 40 years (mean: 39.3). The recurrence time varied from 45 to 1560 days (mean: 705). Two patients presented the new fracture episode at the same site of the previous lesion, while in the other case the lesion was observed at another site. CONCLUSION: Recurrent FP is an extremely rare entity. The risk factors for its occurrence are still unknown. Although the lesion of the corpus cavernosum ipsilateral to the scar tissue of the prior FP is more common, contralateral rupture may be present. Nevertheless, prospective studies with larger samples should be conducted.

Evaluation of epicardial adipose tissue in familial partial lipodystrophy.

BACKGROUND: Dunnigan type Familial Partial Lipodystrophy (FPLD) is characterized by loss of subcutaneous fat from the limbs and excessive accumulation on the visceral adipose tissue (VAT). Affected individuals have insulin resistance (IR), diabetes, dyslipidemia and early cardiovascular (CV) events, due to their imbalanced distribution of total body fat (TBF). Epicardial adipose tissue (EAT) is correlated with VAT. Hence, EAT could be a new index of cardiac and visceral adiposity with great potential as a marker of CV risk in FPLD. OBJECTIVE: Compare EAT in FPLD patients versus healthy controls. Moreover, we aimed to verify if EFT is related to anthropometrical (ATPM) and Dual-Energy X-ray Absorptiometry (DEXA) measures, as well as laboratory blood findings. We postulated that FPLD patients have enlarged EAT. METHODS: This is an observational, cross-sectional study. Six patients with a confirmed mutation in the LMNA gene for FPLD were enrolled in the study. Six sex, age and BMI-matched healthy controls were also selected. EFT was measured by transthoracic echocardiography (ECHO). All participants had body fat distribution evaluated by ATPM and by DEXA measures. Fasting blood samples were obtained for biochemical profiles and also for leptin measurements. RESULTS: Median EFT was significantly higher in the FPLD group than in matched controls (6.0 ± 3.6 mm vs. 0.0 ± 2.04 mm; p = 0.0306). Additionally, FPLD patients had lower leptin values. There was no significant correlation between EAT and ATPM and DEXA measurements, nor laboratory findings. CONCLUSIONS: This study demonstrates, for the first time, that EAT measured by ECHO is increased in FPLD patients, compared to healthy controls. However, it failed to prove a significant relation neither between EAT and DEXA, ATPM or laboratory variables analyzed.

Enfermedades raras: hipomelanosis de Ito / Rare diseases: hypomelanosis Ito

La hipomelanosis de Ito es un síndrome neurocutáneo que se manifiesta por la despigmentación de grado variabley distribución característica siguiendo las líneas de Blaschko, asociada a alteraciones neuroesqueléticas, oculares,cardíacas, renales y genitourinarias. Las máculas hipocrómicas están presentes desde el nacimiento o pueden aparecer en los primeros meses de vida...

Ito hypomelanosis is a neurocutaneous syndrome that includes skin depigmentation in variable degree, andcharacteristic distribution along Blaschko lines, in association with neurological, skeletal, ocular, cardiac, renal and genitourinary disorders. The hypochromic macules may be present from birth or appear in early months of life...

Left atrial and left ventricular diastolic function in chronic Chagas disease.

BACKGROUND: Left atrial (LA) and left ventricular (LV) diastolic function analysis can yield new strategies to recognize early cardiac involvement and prognostic indicators in Chagas disease. METHODS: Patients with Chagas disease with the indeterminate (n = 69) or with the cardiac form (32 with changes limited to electrocardiography [stage A], 25 with changes in LV systolic function but no heart failure [HF; stage B], and 26 with HF) underwent evaluation of LV diastolic function (mitral inflow, pulmonary vein flow, color M-mode echocardiography, and tissue Doppler analysis), and LA function by three-dimensional echocardiography and strain analysis and were prospectively followed for the occurrence of clinical events. Echocardiograms were also obtained from 32 controls. RESULTS: LV diastolic dysfunction was gradually more prevalent and severe across groups from patients with the indeterminate form of Chagas disease to patients with HF. Tissue Doppler was the best tool to demonstrate the worsening of LV diastolic function across the groups (E' velocity: controls, 12.6 ± 2.3 cm/sec; patients with the indeterminate form, 12.1 ± 3.1 cm/sec; stage A, 10.3 ± 2.9 cm/sec; stage B, 8.3 ± 2.8 cm/sec; patients with HF, 5.6 ± 1.9; P < .0001). Although maximum LA volume was increased only in patients with HF, minimum LA volume (controls, 8 ± 2 mL/m(2); patients with the indeterminate form, 8 ± 2 mL/m(2); stage A, 9 ± 3 mL/m(2); stage B, 11 ± 4 mL/m(2); patients with HF, 27 ± 17 mL/m(2); P < .0001) and precontraction LA volume (controls, 11 ± 3 mL/m(2); patients with the indeterminate form, 12 ± 3 mL/m(2); stage A, 13 ± 4 mL/m(2); stage B, 16 ± 5 mL/m(2); patients with HF, 32 ± 19 mL/m(2); P < .0001) were increased in all cardiac form groups. LA conductive function was depressed in all cardiac form groups, while LA contractile function was depressed only in patients with HF. Cox proportional-hazards regression analysis revealed that end-systolic LV diameter (hazard ratio, 1.6; 95% confidence interval, 0.9-2.8; P = .09), E' velocity (hazard ratio, 0.5; 95% confidence interval, 0.3-0.8; P = .001), and peak negative global LA strain (hazard ratio, 1.21; 95% confidence interval, 1.02-1.4; P = .03), were independent predictors of clinical events. CONCLUSIONS: LV diastolic dysfunction was found in all forms of chronic Chagas disease, including those without LV systolic dysfunction. LV diastolic dysfunction may contribute to changes in LA volume and conductive function found in early stages of the cardiac form. Both LV diastolic function and LA contractile function were independent predictors of clinical events.

O valor do Doppler tecidual no diagnóstico diferencial da hipertrofia do atleta e da cardiomiopatia hipertrófica / The value of tissue Doppler in the differential diagnosis of athlete's heart and hypertrophic cardiomyopathy

Introdução: A cardiomiopatia hipertrófica é a responsável pelo maior número de mortes súbitas ou inesperadas por problemas cardíacos, em atletas jovens, e, quando tentamos esclarecer o diagnóstico pela ecocardiografia tradicional, a simples presença de hipertrofia, muitas vezes, não permite distinguir a sua etiologia, como a hipertrofia dos atletas e a hipertrofia secundária à hipertensão arterial. O Doppler tecidual (DTI) pode auxiliar na diferenciação das referidas hipertrofias. Objetivo: Avaliar os valores do Doppler tecidual (TDI) no anel mitral, em pacientes com cardiomiopatia hipertrófica, hipertrofia hipertensiva e hipertrofia, induzida pelo exercício, em atletas saudáveis de alta performance. Métodos: Foram estudados 147 pacientes: 30 voluntários saudáveis (grupo controle); 49 atletas de alta performance, jogadores de futebol profissionais do fluminense Futebol Clube , da cidade do rio de Janeiro-RJ (grupo dos atletas), avaliados na classe 1 de weber pela ergoespirometria; 40 portadores de hipertensão arterial sistêmica moderada controlada, com hipertrofia ventricular esquerda e função ventricular preservada (grupo dos hipertensos)...

Alterações precoces da função diastólica do ventrículo esquerdo e da função do átrio esquerdo na doença de chagas detectadas ao doppler tecidual e por novos índices ecocardiográficos: Ecocardiografia tridimensional e deformação miocárdica / Early changes in diastolic function of the left ventricle and left atrium function in Chagas disease detected by tissue Doppler echocardiographic indices and new: Three-dimensional echocardiography and myocardial deformation

Fundamento: A doença de Chagas ainda é importante problema de saúde pública na América Latina onde 12 a 15 milhões de pessoas são infectadas pelo Trypanosoma cruzi. A forma crônica cardíaca apresenta alta morbimortalidade. A disfunção diastólica do ventrículo esquerdo (VE) está presente em diferentes estágios da doença de Chagas e o seu diagnóstico pode ser uma estratégia para o reconhecimento precoce do acometimento cardíaco na doença de Chagas. Objetivos: Analisar a função diastólica do VE e a função do AE em pacientes na fase crônica da doença de Chagas sem acometimento global ou segmentar da função sistólica do VE. Métodos: Pacientes com doença de Chagas entre 18 e 60 anos de idade foram consecutivamente analisados no período de março de 2010 a agosto de 2011. Ecocardiogramas de 52 pacientes sem lesão cardíaca aparente, 29 no estágio A da fase cardíaca (alterações apenas no eletrocardiograma) e 25 controles foram analisados. A função diastólica do VE foi analisada pelo fluxo mitral, fluxo de veia pulmonar, velocidade de propagação ao modo M colorido, untwist do VE e Doppler tecidual do anel mitral. A função do AE foi avaliada pela ecocardiografia tridimensional e pela análise de deformação bidimensional...

Resultados: Todos os grupos tinham idade e massa corpórea similar. Todos os grupos tinham diâmetros cavitários, massa do VE e função sistólica do VE similares. A disfunção diastólica foi mais prevalente em pacientes no estágio A que em pacientes sem envolvimento cardíaco aparente. Os parâmetros derivados do Doppler tecidual foram os melhores para discriminar o grau de disfunção diastólica entre os grupos. A razão EE foi progressivamente maior e a razão EA foi progressivamente menor de controles, para indeterminados e pacientes no estágio A. Os volumes do AE foram maiores em pacientes no estágio A, porém as frações de esvaziamento do AE foram similares entre os grupos. O pico positivo do do AE foi menor no estágio A enquanto que os outros parâmetros do do AE não diferiram entre os grupos. Conclusões: Pacientes com doença de Chagas e função sistólica do VE preservada apresentam disfunção diastólica, a qual é mais prevalente em pacientes no estágio A. O Doppler tecidual é o melhor índice para identificar a diferença na função diastólica entre os grupos estudados. Apenas a função condutiva do AE estava deprimida em pacientes no estágio A da fase cardíaca da doença de Chagas. Novos estudos são necessários para definir o valor prognóstico dos achados dessa Tese...

Gordura epicárdica medida ao ecocardiograma correlaciona-se com ateromatose carotídea / Epicardial fat measured by echocardiography correlates to carotid atheromatosis

Fundamento: A presença de placas carotídeas é um marcador de doença cardiovascular já estabelecido. A medida da gordura epicárdica é um novo método de avaliação da gordura visceral. A relação entre o diâmetro da gordura epicárdica com o risco cardiovascular está sendo investigada, Objetivo: Avaliar a correlação entre a espessura da gordura epicárdica, medida pelo ecocardiograma, e ateromatose das artérias carótidas, Métodos: Foram avaliados 311 pacientes consecutivos, encaminhados para a realização de ecocardiograma ou ultrassonografia carotídea, com indicações clínicas comuns. A espessura da gordura epicárdica, na parede livre do ventrículo direito, foi avaliada com o ecocardiograma e o seu diâmetro, correlacionado com a presença ou não de ateromatose das artérias carótidas. Resultados: Os pacientes (45 por cento homens) tinham idade média de 56 +- 17 anos. A espessura média de gordura epicárdica foi de 5,4 +- 2,6mm. A espessura da gordura epicárdica foi, significativamente, maior nos pacientes com ateromatose das artérias carótidas (7,0 +- 2,2, n=141 vs. 4,7 +-2,5,n=166,p<0,001). A espessura da gordura epicárdica foi maior nos pacientes com hipertensão, diabetes mellitus, doença coronariana ou dislipidemia. Após regressão múltipla...

Estimativa do valor do diâmetro da gordura epicárdica medida ao ecocardiograma em uma população normal / Reference values for epicardial fat diameter measured by echocardiography in a normal population

Objetivos: A gordura epicárdica é um depósito de gordura visceral, marcador de risco cardiovascular. O valor normal de seu diâmetro ainda precisa ser definido e, portanto, objetivamos avalia-lo em uma população normal. Método: Foram avaliados 60 indivíduos assintomáticos, não doentes, que apresentavam ecocardiograma e Doppler de carótidas normais. A espessura da gordura epicárdica foi medida ao ecocardiograma bidimensional à frente da parede livre do ventrículo direito, perpendicularmente, ao ânulo aórtico, no corte paraesternal, eixo longo, ao final da sístole. Resultados: Os indivíduos (30 homens - 50%) tinham idade média de 34 +- 11 anos. A espessura média da gordura epicárdica foi de 2,8 +- 1,2mm, sem diferença significativa entre homens e mulheres. No grupo de indivíduos com idade < - 30 anos, a espessura da gordura epicárdica foi de 2,3 +- 0,8mm (n=28), nos indivíduos com idade entre 31 e 44. Esse valor foi de 3,0 +- 1,1mm (n=19), e, naqueles com idade >- 45 anos, o valor foi de 3,5 +-1,6mm (n=13), com diferença significativa (p=0,006) entre os grupos pelo teste de ANOVA. Houve correlação positiva significativa...

Variabilidade genética da proteína G do HRSV de amostras com o genótipo BA / Genetic variability of the G protein of HRSV samples with BA genotype

Para estudar a epidemiologia e evolução do novo genótipo HRSVB denominado BA, caracterizado pela duplicação de 60 nt na proteína G, analisamos 4274 amostras clínicas coletadas de crianças hospitalizadas no Hospital Universitário/USP e Hospital da Santa Casa de Misericórdia, cidade de São Paulo entre os anos de 2001 e 2009. As amostras foram submetidas a RT-PCR seguido do sequenciamento da região G2 do gene G. A duplicação de 60 nt foi detectada em 104 (28.3%) das 367 amostras analisadas. De 2001 a 2004 a circulação do genótipo BA foi baixa, seguido de 85.4% (2005), 57.6% (2006), sem circulação (2007), 10% (2008) e 75% (2009) do total de amostras sequenciadas. As sequências foram comparadas com outras BA de diversos países do mundo. A análise filogenética preliminar dividiu as amostras brasileiras em 5 grupos (BA-I, BAII, BAIII, BAIV e BAVI), sendo que a maioria das amostras de 2005 a 2009 agruparam juntas na linhagem BA-IV, estabelecendo um grupo temporal e geográfico.

In order to study the epidemiology and evolution of the new genotype of HRSVB named BA characterized with a 60-nt duplication in the G protein we analyzed 4274 clinical samples collected from children hospitalized in University Hospital/USP and Santa Casa de Misericórdia Hospital, in São Paulo city, during 2001 to 2009. The samples were subject to RT-PCR followed by sequencing of the G2 region of the G gene. The 60 nt-duplication were detected in 104 (28.3%) of 367 sequencing samples. From 2001 to 2004 the circulation of the BA genotype was low, followed by 85.4% (2005), 57.6% (2006), no circulation (2007), 10% (2008) and 75% (2009) of total sequencing samples. Sequences were compared with G sequences with the 60 nt-duplication globally sampled. Preliminary phylogenetic analysis divided Brazilian samples into five clusters (BA-I, BAII, BAIII and BAVI and BAIV), and almost all samples from 2005 to 2009 were clustered together in BA-IV lineage, establishing temporal and geographical cluster.

A behavior- and observation-based monitoring process for safety management.

The objective of this paper is to demonstrate that a combination of a behavior-based monitoring process--using an at-risk behavior and unsafe condition observation system--and an observation-based safety adherence monitoring process that can indicate the compliance level with well-defined and agreed safety critical aspects and operational practices and procedures will be an effective safety management tool. This tool herein described represents a particular case, developed by a Praxair Inc. subsidiary in Brazil. Other safety surveillance systems usually adopted in industrial environments can rarely be used on construction sites. They also do not share information, knowledge and skills among the safety staff and other professionals invited to observe, usually covering specific tasks or specific professionals only, not a complete working area, which causes functional observing and monitoring limitations in terms of capturing behaviors and environmental safety issues. This tool also offers a wide range of learning opportunities and continuous improvement.

Purification and biochemical properties of a glucose-stimulated beta-D-glucosidase produced by Humicola grisea var. thermoidea grown on sugarcane bagasse.

The effect of several carbon sources on the production of mycelial-bound beta-glucosidase by Humicola grisea var. thermoidea in submerged fermentation was investigated. Maximum production occurred when cellulose was present in the culture medium, but higher specific activities were achieved with cellobiose or sugarcane bagasse. Xylose or glucose (1%) in the reaction medium stimulated beta-glucosidase activity by about 2-fold in crude extracts from mycelia grown in sugarcane bagasse. The enzyme was purified by ammonium sulfate precipitation, followed by Sephadex G-200 and DEAE-cellulose chromatography, showing a single band in PAGE and SDS-PAGE. The beta-glucosidase had a carbohydrate content of 43% and showed apparent molecular masses of 57 and 60 kDa, as estimated by SDS-PAGE and gel filtration, respectively. The optimal pH and temperature were 6.0 and 50 degrees C, respectively. The purified enzyme was thermostable up to 60 min in water at 55 degrees C and showed half-lives of 7 and 14 min when incubated in the absence or presence of 50 mM glucose, respectively, at 60 degrees C. The enzyme hydrolyzed p-nitrophenyl-beta-D-glucopyranoside, p-nitrophenyl-beta-D-galactopyranoside, p-nitrophenyl-beta-D-fucopyranoside, p-nitrophenyl-beta-D-xylopyranoside, o-nitrophenyl-beta-D-galactopyranoside, lactose, and cellobiose. The best synthetic and natural substrates were p-nitrophenyl-beta-D-fucopyranoside and cellobiose, respectively. Purified enzyme activity was stimulated up to 2-fold by glucose or xylose at concentrations from 25 to 200 mM. The addition of purified or crude beta-glucosidase to a reaction medium containing Trichoderma reesei cellulases increased the saccharification of sugarcane bagasse by about 50%. These findings suggest that H. grisea var. thermoidea beta-glucosidase has a potential for biotechnological applications in the bioconversion of lignocellulosic materials.

Diferentes significados da disfunção diastólica tipo I, conforme o grupo estudado - nova proposta de classificação da disfunção diastólica tipo I com Doppler ecocardiograma aliado ao Doppler tecidual / Diastolic dysfunction grade I associated with different implications according to the studied group - new proposal for diastolic dysfunction grade I classification using Doppler echocardiography and tissue Doppler imaging

Atualmente dispõe-se do Doppler pulsado e do Doppler tecidual paraclassificar a disfunção diastólica em quatro graus.Ainda assim, considera-se não ser adequado atribuir um mesmo grau dedisfunção diastólica a indivíduos tão distintos como normaise pacientes hipertensos, isquêmicos e outros. Neste trabalho, o objetivo édemonstrar que pacientes com patologias distintas e ummesmo grau de disfunção diastólica podem ter característicasecocardiográficas bastante distintas.Foram estudados 86 indivíduos, sendo 25 atletas profissionais, 27adultos normais, 17 hipertensos e 17 coronariopatas, pelo ecocardiograma Doppler e Doppler tecidual. Foram determinadas as funçõessistólica, diastólica, diâmetros cavitários e massa do VE.Os atletas não apresentavam disfunção diastólica. Entre indivíduos com disfunção diastólica grau I, hipertensos ecoronariopatas, apresentavam espessuras parietais, massa do VE e diâmetro do AE maiores (P

A gravidade da lesão do fundo de olho e o padrão de hipertrofia ventricular esquerda na hipertensão arterial sistêmica refratária ao tratamento / Severity of retinopathy and left ventricular hypertrophy pattern in treatment-resistant systemic arterial hypertension

Fundamentos:A avaliação dos órgãos-alvo na hipertensão arterial refratária ao tratamento(HRT) permite uma estratificação prognóstica. Objetivo:Relacionar a lesão no fundo de olho (FO) com o padrão de hipertrofia ventricular esquerda(HVE) e os níveis médios de pressão sistólica nas 24h, na HRT. Métodos:Estudo transversal com 194 sujeitos do ambulatório de hipertensão arterial(INC-MS), sendo 42(21,6 por cento) com HRT. A retinopatia foi classificada de acordo com keith-wagener-backer(KWB); as variáveis analisadas ecocardiograficamente foram: índice de massa do VE(IMVE), para o diagnóstico de HVE; e a espessura relativa de parede do VE(ERP), para avaliar o padrão, se concêntrica(C) ou excêntrica(E). Foi estudada a pressão sistólica média de 24 hs(PSM24H) obtida pela MAPA. A análise dos dados foi testada por t de student, oneway ANOVA e quiquadrado ou exato de fisher para tabelas de contingência(a<0,05). Resultados: Todos os pacientes com HRT apresentavam lesão no FO e HVE. Foram estratificados em quatro grupos, segundo o FO(KWBII e KWBIII) e o ecocardiograma(HVEC e HVE E). Não houve diferença nos parâmetros antropométricos entre os grupos (p=NS) e na distribuição de HVE C e E entre os sujeitos com KWB II e KWB III (x=1,84; p=0,17). Nos indivíduos com HVE E(p<0,001) o que não foi observado nos KWB II e KWB III(p=NS). Conclusão: Nos sujeitos com HRT, lesões de FO e HVE foram dominantes. Os níveis de PSM24H elevados estão associados ao HVE C, mas não ao FO.

One-step reverse transcriptase polymerase chain reaction for the diagnosis of respiratory syncytial virus in children.

Human respiratory syncytial virus (HRSV) is the main cause of acute lower respiratory tract infections in infants and children. Rapid diagnosis is required to permit appropriate care and treatment and to avoid unnecessary antibiotic use. Reverse transcriptase (RT-PCR) and indirect immunofluorescence assay (IFA) methods have been considered important tools for virus detection due to their high sensitivity and specificity. In order to maximize use-simplicity and minimize the risk of sample cross-contamination inherent in two-step techniques, a RT-PCR method using only a single tube to detect HRSV in clinical samples was developed. Nasopharyngeal aspirates from 226 patients with acute respiratory illness, ranging from infants to 5 years old, were collected at the University Hospital of the University of Sao Paulo (HU-USP), and tested using IFA, one-step RT-PCR, and semi-nested RT-PCR. One hundred and two (45.1%) samples were positive by at least one of the three methods, and 75 (33.2%) were positive by all methods: 92 (40.7%) were positive by one-step RT-PCR, 84 (37.2%) by IFA, and 96 (42.5%) by the semi-nested RT-PCR technique. One-step RT-PCR was shown to be fast, sensitive, and specific for RSV diagnosis, without the added inconvenience and risk of false positive results associated with semi-nested PCR. The combined use of these two methods enhances HRSV detection.

Austin Flint murmur re-visited.

Austin Flint murmur is a mid-diastolic rumbling audible in subjects with severe aortic regurgitation. Several theories have been raised to explain mechanistically the nature of this particular phenomenon. We briefly review severe aortic regurgitation under the light of contemporary echocardiography in an illustrative case.

One-step reverse transcriptase polymerase chain reaction for the diagnosis of respiratory syncytial virus in children

One-step reverse transcriptase polymerase chain reaction for the diagnosis of respiratory syncytial virus in children

Left atrial myxoma associated with obstructive coronary artery disease.

We describe a case of a 67 year-old patient with obstructive coronary artery disease that, in the preoperative survey for inguinal herniorraphy surgery, discovered, by a two-dimensional echocardiogram, a tumor in left atrium, mobile, non-obstructive. The patient underwent a cineangiocoronariography showing severe stenosis in the left anterior descending artery, moderate stenosis in the left circumflex artery, near the origin of the first marginal branch, and a non-obstructive plaque in the right coronary artery. There was also moderate left ventricular dysfunction. After that, the patient has gone coronary artery bypass surgery and resection of the left atrial tumor. The histological exam revealed that the tumor was, in fact, a myxoma.

Mixoma em átrio esquerdo associado a doença arterial coronariana obstrutiva / Left atrial myxoma associated with obstructive coronary artery disease

Descrevemos o caso de um paciente de 67 anos, portador de doença arterial coronariana obstrutiva, o qual, em avaliação pré-operatória para cirurgia de herniorrafia inguinal, realizou ecocardiograma demonstrando um volumoso tumor em átrio esquerdo, móvel, não-obstrutivo, com pedículo proveniente da veia pulmonar superior direita. O paciente realizou cineangiocoronariografia com ventriculografia esquerda, evidenciando lesão obstrutiva grave em terço médio da artéria descendente anterior, moderada em terço proximal da artéria circunflexa, no local de saída do primeiro ramo marginal, e coronária direita com lesão não-obstrutiva em terço distal. Havia, ainda, disfunção ventricular esquerda moderada. O paciente foi então submetido a cirurgia para retirada do tumor e revascularização do miocárdio. O exame histopatológico mostrou tratar-se de um mixoma.

We describe a case of a 67 year-old patient with obstructive coronary artery disease that, in the preoperative survey for inguinal herniorraphy surgery, discovered, by a two-dimensional echocardiogram, a tumor in left atrium, mobile, non-obstructive. The patient underwent a cineangiocoronariography showing severe stenosis in the left anterior descending artery, moderate stenosis in the left circumflex artery, near the origin of the first marginal branch, and a non-obstructive plaque in the right coronary artery. There was also moderate left ventricular dysfunction. After that, the patient has gone coronary artery bypass surgery and resection of the left atrial tumor. The histological exam revealed that the tumor was, in fact, a myxoma.