462 research outputs found
Aneurismas Gigantes do Septo Interauricular Simulando Massas Quísticas. Dois Casos com Opções Terapêuticas Diferentes
With the recent technical improvement in echocardiography imaging (second harmonics) the number of interatrial septum aneurysms (ASA) increased and are easily recognized. We assist to an overdiagnosing number of cases and diagnostic criteria emerged to face this problem. In the great majority of the cases ASA are small and inoffensive, but as ASA is considered a risk factor for cardioembolism when associated with persistence of foramen oval (PFO), an examination by transesophageal echocardiography (TEE) for exclusion of PFO makes the sense and is a common testing in patients with cryptogenic stroke. Besides these frequent ASA, other forms exist; the authors describe two cases of uncommon and huge ASA, one mimicking a right atrial tumor and the other a quistic, hipoechoic mass. The first case was associated with mitral stenosis and was submitted to surgery and the second was closed with an Amplatzer occluder device usually used in atrial septal defect (ASD)
Nocardial Endocarditis after Mitral Valve Replacement: Case Report and Review of the Literature
A Nocardia é responsável por diversos tipos de infecção quer em receptores imunocompetentes, quer imunocomprometidos e pode afectar qualquer órgão. A endocardite a Nocardia spp é muito rara e tem mau prognóstico. Segundo o nosso conhecimento e após revisão da literatura, foram reportados apenas 12 casos de endocardite a Nocardia, a maioria tratada com substituição valvular. Reportamos o primeiro caso descrito em Portugal de endocardite protésica a Nocardia, tratado com sucesso apenas com terapêutica antimicrobiana (trimetoprimsulfametoxazol), sem necessidade de substituição valvular
Loeffler Endocarditis in a Patient with Non-Hodgkin's Lymphoma
info:eu-repo/semantics/publishedVersio
Pierwotny Mięsak Naczyniowy Osierdzia. Opis Przypadku i Przegląd Piśmiennictwa
Primary cardiac tumours are rare entities and angiosarcoma is the most frequent primary cardiac malignant tumour. Mean
survival is six months and the tumour responds poorly to chemotherapy. We present the case of a 50 year-old patient with
localised pericardial angiosarcoma who survived 23 months after diagnosis with a combined approach of chemotherapy and
surgery
Left Atrial Volume: an Old Echocardiographic Measure with Renewed Prognostic Significance: a Study in Patients with Dilated Cardiomyopathy
Recentemente, surgiram alguns trabalhos que
ressaltaram a importância do cálculo do
volume da aurícula esquerda (VAE) como um
marcador de eventos cardíacos adversos. Foi
objectivo deste estudo avaliar a importância
prognóstica deste parâmetro em doentes (dts)
com deficiente função ventricular esquerda e
correlacioná-lo com outros parâmetros
clássicos de prognóstico – consumo de O2
(VO2 max) e pro-BNP (pBNP).
Métodos: Analisou-se o volume da aurícula
esquerda (VAE) por método de Simpson, numa população de 35 dts com cardiopatia dilatada (idiopática e isquémica) com fracção de ejecção (FE) 31±9,6% doentes (dts) eram de sexo masculino e a média de idades foi de
50,5±10,5 anos. Toda a população efectuou
estudos de ecocardiografia convencional
(incluindo avaliação por M-mode, bidimensional e Doppler), prova cardiorespiratória (VO2max) e doseamento de
pro-BNP. O tempo médio de seguimento foi de
24 ± 4 meses, tendo-se considerado como
eventos cardíacos (EC): internamento por
insuficiência cardíaca, transplante e morte.
Resultados: Dos parâmetros da ecocardiografia
- o diâmetro da AE foi de 46,6±5,7mm, as dimensões do VE em diástole – 73,5±10mm e
em sístole -58,9±11mm, a média da fracção
de ejecção foi de 31±9,6%, o VAE foi de
78,6±33 ml, os volumes do VE foram de
214±82ml em diástole e de 153±75ml em
sístole, 15 dts tinham padrão restritivo de
enchimento ventricular (E/A>2), a média da
área (Doppler cor) da insuficiência mitral foi de 4±3,3cm2, 14 dts tinham E/E’>15. O VO2
max médio foi de 20±5,8ml/kg/min e o pro-BNP de 3146±4629pg/mL. Para além da correlação de outros parâmetros clássicos ecocardiográficos com o prognóstico (volumes
VE, FE e E/E’), o VAE e o volume indexado
da AE (VAE/SC) mostraram uma correlação
com o prognóstico (EC) com r=0,4 (p=0,02)
que não se verificou para o diâmetro da AE
(p=ns). Em relação à tolerância ao esforço,
houve uma correlação inversa entre o diâmetro, o volume e o volume indexado da
AE e o VO2max, com maior significado
estatístico para o VAE e VAE/SC com
r=-0,48, p=0,008. Quanto ao pro-BNP, quer o
diâmetro, quer o VAE (ou volume indexado)
tiverem o mesmo nível de significado
estatístico (r=0,43; p=0,02). O valor predictivo de eventos (curvas ROC) para o VAE foi de 70ml e de 37ml/m2 para o VAE/m2.
Conclusão: O volume da aurícula esquerda/volume indexado é um parâmetro
ecocardiográfico com significado prognóstico
em dts com deficiente função ventricular
esquerda, correlacionando-se com a tolerância
ao esforço e pro-BNP
Compreender a Recorrência dos Mixomas Cardíacos. Um Caso Clínico
Recurrence of cardiac myxoma is a rare condition, observed in about 3% of patients in sporadic cases, although it is more frequent in familial ones. Several mechanisms have been proposed to explain such recurrence, and the importance of increased vascularization as a facilitating feature is the subject of debate. The authors report the case of a non-familial right atrial myxoma, unusual for both its histopathology and recurrence
Characterization of B cells in healthy pregnant women from late pregnancy to post-partum: a prospective observational study
BACKGROUND:
B cells play a role in pregnancy due to their humoral and regulatory activities. To our knowledge, different maturational stages (from transitional to memory) of circulating B cell subsets have not yet been characterized (cell quantification and phenotype identification) in healthy pregnant women. Thus, the objective of our study was to characterize these subsets (as well as regulatory B cells) from late pregnancy to post-partum and to compare them with the circulating B cells of non-pregnant women.
METHODS:
In all of the enrolled women, flow cytometry was used to characterize the circulating B cell subsets according to the expression of IgD and CD38 (Bm1-Bm5 classification system). Regulatory B cells were characterized based on the expression of surface antigens (CD24, CD27, and CD38) and the production of IL-10 after lipopolysaccharide stimulation.
RESULTS:
Compared to the absolute counts of B cells in the non-pregnant women (n = 35), those in the pregnant women (n = 43) were significantly lower (p < 0.05) during the 3rd trimester of pregnancy and on delivery day (immediately after delivery). The percentages of these cells on delivery day and at post-partum were significantly lower than those in the non-pregnant women. In general, the absolute counts and percentages of the majority of the B cell subsets were significantly lower in the 3rd trimester of pregnancy and on delivery day than in the non-pregnant women. However, these counts and percentages did not differ significantly between the post-partum and the non-pregnant women. The most notable exceptions to the above were the percentages of naïve B cells (which were significantly higher in the 3rd trimester and on delivery day than in the non-pregnant women) and of CD24(hi)CD38(hi) regulatory B cells (which were significantly higher in the post-partum than in the non-pregnant women).
CONCLUSION:
According to our study, the peripheral B cell compartment undergoes quantitative changes during normal late pregnancy and post-partum. Such findings may allow us to better understand immunomodulation during human pregnancy and provide evidence that could aid in the development of new strategies to diagnose and treat pregnancy-associated disturbances. Our findings could also be useful for studies of the mechanisms of maternal responses to vaccination and infection
Percutaneous Treatment of Mitral Valve Regurgitation: Initial Experience with the MitraClip Device
INTRODUCTION: Mitral regurgitation (MR) is the most common valvular disease and has recently become the target of a number of percutaneous approaches. The MitraClip is virtually the only device for which there is considerable experience, with more than 20,000 procedures performed worldwide.
OBJECTIVE: To describe our initial experience of the percutaneous treatment of MR with the MitraClip device.
METHODS: We describe the first six MitraClip cases performed in this institution (mean age 58.5 ± 13.1 years), with functional MR grade 4+ and New York Heart Association (NYHA) heart failure class III or IV (n=3), with a mean follow-up of 290 ± 145 days.
RESULTS: Procedural success (MR ≤ 2+) was 100%. Total procedure time was 115.8 ± 23.7 min, with no in-hospital adverse events and discharge between the fourth and eighth day, and consistent improvement in the six-minute walk test (329.8 ± 98.42 vs. 385.33 ± 106.95 m) and in NYHA class (three patients improved by two NYHA classes). During follow-up there were two deaths, in two of the four patients who had been initially considered for heart transplantation.
CONCLUSION: In patients with functional MR the MitraClip procedure is safe, with both a high implantation and immediate in-hospital success rate. A longer follow-up suggests that the clinical benefit decreases or disappears completely in patients with more advanced heart disease, namely those denied transplantation or on the heart transplant waiting list
Primary Idiopathic Chylopericardium
O quilopericárdio é uma entidade rara, que é encontrada mais frequentemente associada a traumatismos (com lesão do canal torácico), neoplasias e infiltrações por filária. As formas primárias são mais raras e associam-se a malformações da circulação linfática. Apresenta-se o caso clínico de um doente de 52 anos, sexo masculino, com o diagnóstico de quilopericárdio primário, sendo discutida a abordagem diagnóstica, assim como a evolução clínica favorável com tratamento conservador
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