Canine cavitary effusion: a retrospective study of 304 cases in Brazil / Efusões cavitárias caninas: estudo retrospectivo de 304 casos no Brasil

The objective of this study was to determine the frequency of different categories of specific and general classification in canine cavitary effusions (CE), as well as their association with the underlying etiologies. The laboratorial and clinical data from 304 cases of canine CE were retrospectively assessed. In 32.9% (100 cases), at least one of the specific classification categories was established, with a subtotal predominance of neoplasia (42%), bacterial serositis (24%) and hemorrhage (16%). Neoplasia was confirmed by effusion cytology in 57.5% of the cases with histopathological confirmation. From the cases in which the specific classification was not obtained, 35.8% were classified as modified transudate, 30.4% as pure transudate, 21.1% % as exudate and 12.7% was not included in any general category. The most common causes of effusion among these cases were hypoproteinemia and/or hipoalbuminemia (HPHA) (25.8%), hepatopathy (22.5%), cardiac insufficiency (15.5%) and cytologically undetected cases of neoplasia (12.4%). In conclusion, HPHA, hepatopathy and neoplasia represents important etiologies for canine CE development. Classification of effusions, solely based on [TP] and TNCC, might be an inaccurate diagnostic tool of effusions. New laboratorial classification methods for canine CE should be researched.(AU)

O objetivo deste estudo foi determinar a frequência de diferentes categorias de classificação específica e geral em efusões cavitárias (EC) caninas, bem como sua associação com as etiologias subjacentes. Os dados laboratoriais e clínicos de 304 casos de EC canina foram avaliados retrospectivamente. Em 32,9% (100 casos), pelo menos uma das categorias específicas de classificação foi estabelecida, com predomínio subtotal de neoplasia (42%), serosite bacteriana (24%) e hemorragia (16%). A neoplasia foi confirmada pela citologia da efusão em 57,5% dos casos com confirmação histopatológica. Dos casos em que a classificação específica não foi obtida (204 casos), 35,8% foram classificados como transudato modificado, 30,4% como transudato puro, 21,1% como exsudato e 12,7% não foram incluídos em nenhuma categoria geral. As causas mais comuns de efusão nestes casos foram hipoproteinemia e/ou hipoalbuminemia (HPHA) (25,8%), hepatopatia (22,5%), insuficiência cardíaca (15,5%) e casos de neoplasia citologicamente não detectados (12,4%). Em conclusão, HPHA, hepatopatia e neoplasia representam importantes etiologias para o desenvolvimento da EC canina. A classificação geral de efusões, baseada exclusivamente em proteína e celularidade, pode ser uma ferramenta diagnóstica imprecisa. Novos métodos de classificação laboratorial para ECs caninas devem ser pesquisados.(AU)

Tuberculosis pericárdica / Pericardial tuberculosis

La tuberculosis pericárdica es una presentación poco frecuente de infecciones causadas por especies de Micobacterias. Se presenta el caso de una paciente femenina de 43 años de edad con antecedentes de Leucemia linfocítica aguda en remisión completa, en fase de mantenimiento con Dasatinib durante cuatro años: había derrame pleural derecho como efecto secundario, y consultó por presentar disnea progresiva, concomitante fiebre de 39ºC precedida por escalofríos, sin patrón horario asociándose a las 72 horas exacerbación del patrón de disnea hasta la ortopnea y disminución del volumen urinario motivo por el cual es traída a nuestro centro. Durante su estancia hospitalaria se realiza TC de tórax hallándose de manera incidental la existencia de derrame pericárdico, se realiza ecoscopia donde se visualiza derrame pericárdico importante a predominio posterior, de 27 mm de volumen con colapso de cavidades cardíacas derechas, estableciéndose el diagnóstico de taponamiento cardíaco. Se realiza pericardiocentesis con obtención de 720 cc de liquido pericárdico turbio. 72 horas posterior al procedimiento presenta nuevo episodio de taponamiento cardíaco realizándose ventana pleuropericárdica; el ADA de líquido pericárdico reportó valores 2 veces superior a limite de corte; el resultado de la biopsia de pericardio reportó fibrosis pericárdica. En vista de hallazgos clínicos y paraclínicos se planteó el diagnóstico de Pericarditis tuberculosa.

Pleuropericardial tuberculosis is a rare presentation of infections caused by Micobacterias. The case of a 43 years - old female patient with a history of acute lymphocytic leukemia in complete remission in the maintenance phase with dasatinib for four years with right pleural effusion is presented. She consulted for progressive dyspnea; there was also fever (39ºC) and chills. Within 72 hours orthopnoea and decreased urine volume appeared. During her hospital stay a chest CT showed the existence of pericardial effusion, and endoscopy confirmed severe pericardial effusion of 27 mm with right-sided heart collaps, and because the diagnosis of cardiac taponade was made pericardiocentesis was performed, obtaining 720 cc of pericardial turbid fluid; after s 72 hours after a new episode of cardiac taponade occurred, so that a pleuropericardial window was done. ADA values reported 2 times higher cutting; pericardial biopsy reported pericardial fibrosis. In view of these findings, clinical and laboratory diagnosis of tuberculous pericarditis was established.

Fluid Retention Associated with Imatinib Treatment in Patients with Gastrointestinal Stromal Tumor: Quantitative Radiologic Assessment and Implications for Management

OBJECTIVE: We aimed to describe radiologic signs and time-course of imatinib-associated fluid retention (FR) in patients with gastrointestinal stromal tumor (GIST), and its implications for management. MATERIALS AND METHODS: In this Institutional Review Board-approved, retrospective study of 403 patients with GIST treated with imatinib, 15 patients with imaging findings of FR were identified by screening radiology reports, followed by manual confirmation. Subcutaneous edema, ascites, pleural effusion, and pericardial effusion were graded on a four-point scale on CT scans; total score was the sum of these four scores. RESULTS: The most common radiologic sign of FR was subcutaneous edema (15/15, 100%), followed by ascites (12/15, 80%), pleural effusion (11/15, 73%), and pericardial effusion (6/15, 40%) at the time of maximum FR. Two distinct types of FR were observed: 1) acute/progressive FR, characterized by acute aggravation of FR and rapid improvement after management, 2) intermittent/steady FR, characterized by occasional or persistent mild FR. Acute/progressive FR always occurred early after drug initiation/dose escalation (median 1.9 month, range 0.3-4.0 months), while intermittent/steady FR occurred at any time. Compared to intermittent/steady FR, acute/progressive FR was severe (median score, 5 vs. 2.5, p = 0.002), and often required drug-cessation/dose-reduction. CONCLUSION: Two distinct types (acute/progressive and intermittent/steady FR) of imatinib-associated FR are observed and each type requires different management.

Análisis de las características clínicas, ecocardiográficas, microbiológicas y citopatológicas de derrames pericárdicos en un hospital de tercer nivel de atención / Analysis of clinical, echocardiographic, microbiological and cytopathological characteristics of pericardial effusions in a tertiary hospital care

Objetivo: Conocer la prevalencia, las causas, los hallazgos clínicos, ecocardiográficos, microbiológicos y citopatológicos de pacientes con derrame pericárdico. Métodos: Estudio observacional, retrospectivo, transversal y analítico. Se analizaron expedientes clínicos de pacientes que reciben pericardiocentesis durante un periodo de 5 años. Se empleó estadística descriptiva, con medidas de tendencia central y de dispersión para el análisis. Resultados: La prevalencia de derrame pericárdico fue del 1.1%. Predominó en mujeres (60.4%) y se observó una media de edad de 49 años. La principal causa asociada fue neoplásica, con un 32.1%, seguida de la idiopática y reumatológica con un 27.4 y 10.4%, respectivamente. Se presentó taponamiento cardiaco en un 27.1%, siendo la disnea y la presencia de tonos cardiacos apagados los datos clínicos más comunes. El colapso auricular y ventricular derechos se presentaron en el 84.9 y 75.5%, respectivamente. El estudio citopatológico de líquido pericárdico presentó un mayor rendimiento diagnóstico en el estudio de derrames asociados a neoplasias, mostrando una sensibilidad del 54%, una especificidad del 95%, un valor predictivo positivo del 85% y un valor predictivo negativo del 81%. Conclusiones: La prevalencia de derrame pericárdico en un hospital de tercer nivel fue del 1.1%, predominando la etiología neoplásica. El colapso auricular y ventricular derechos son los hallazgos ecocardiográficos más comunes en la presencia de derrame pericárdico moderado o severo. El estudio citopatológico tiene una alta especificidad ante la sospecha de causa neoplásica.

Objective: To determine the prevalence, etiology, clinical, echocardiographic, microbiological and cytopathological characteristics of patients with pericardial effusion. Methods: Observational, retrospective, cross-sectional analytical study. We reviewed medical records of patients undergoing pericardiocentesis for a 5 years period. We used descriptive statistics, measures of central tendency and dispersion for analysis. Results: The prevalence of pericardial effusion was 1.1%. Predominant in women (60.4%) and there was a mean age of 49 years. The main causes were neoplastic 32.1%, idiopathic 27.4% and rheumatological 10.4%. A percentage of 27.1 had cardiac tamponade whereas dyspnea and muffled heart sounds were the most common clinical data. The right atrial and ventricular collapse occurred in 84.9 and 75.5%, respectively. The pericardial fluid cytology yielded better in neoplastic causes a sensitivity of 54%, specificity 95%, positive predictive value 85% and negative predictive value 81%. Conclusions: The prevalence of pericardial effusion in a tertiary care hospital was 1.1%, the main cause was neoplastic. In the evaluation of moderate or severe pericardial effusion we found that right atrial and ventricular collapses were the most common echocardiographic findings. The cytopathological study had a high specificity for the diagnosis of neoplasia.

Taponamiento cardíaco secundario a carcinoma papilar esclerosante difuso de tiroides / Metastatic cardiac tamponade as initial manifestation of papillary thyroid carcinoma

El carcinoma papilar, variante esclerosante difusa, corresponde al 2% de todos los carcinomas papilares de la tiroides. Se caracteriza por comprometer de manera difusa y bilateral a la glándula tiroides. Clínicamente se manifiesta con metástasis ganglionares y pulmonares, afectando predominantemente a mujeres jóvenes. Se describe un caso de taponamiento cardíaco como presentación inicial de un carcinoma papilar de tiroides variante esclerosante difusa. Una mujer de 32 años concurrió al servicio de emergencias médicas refiriendo epigastralgia y tos seca. Durante el examen físico se constató hipotensión arterial, taquicardia y ruidos cardíacos disminuidos. Se realizó un ecocardiograma, observándose derrame pericárdico. Por medio de una pericardiocentesis se obtuvo líquido pericárdico, cuyo análisis mostró células neoplásicas. Durante la evolución la paciente presentó recurrencia del derrame pericárdico por lo que se realizó una ventana pleuropericárdica, detectándose durante la cirugía una lesión nodular subpleural, la cual fue biopsiada e informada posteriormente como una metástasis de carcinoma papilar vinculable a origen tiroideo. Se realizó una tiroidectomía total con linfadenectomía cervical bilateral. El diagnóstico final fue carcinoma papilar, variante esclerosante difusa. Esta variante infiltra el tejido conectivo de los espacios interfoliculares, simulando una tiroiditis y se caracteriza por una permeación vascular temprana. En oposición a la variante clásica, la esclerosante difusa presenta mayor agresividad y mayor tasa de recurrencia. El carcinoma papilar de tiroides debe tenerse presente como diagnóstico diferencial en nuestro medio, en todas aquellas lesiones neoplásicas papilares metastásicas, más aún si se trata de mujeres jóvenes.

Papillary carcinoma, diffuse sclerosing variant corresponds to 2% of all papillary thyroid carcinomas. It is usually diffuse and bilateral, affecting the entire gland. At the time of diagnosis, patients present lymph node and lung metastasis. It affects mainly young women. This case report describes a cardiac tamponade as the initial manifestation of an unusual variant of papillary thyroid carcinoma. A 32 year-old woman was attended at the emergency room with epigastric pain and dry cough. Physical examination revealed hypotension, tachycardia and decreased heart sounds. An echocardiogram confirmed severe pericardial effusion. Pericardial fluid cytology was positive for malignancy. The patient evolved with recurrent pericardial effusion and a pleuropericardial window was performed. At this procedure, a subpleural nodular lesion was found, which histology corresponded to metastases of papillary carcinoma, probably from thyroid origin. Total thyroidectomy was performed. The final diagnosis was papillary carcinoma, diffuse sclerosing variant. This variant infiltrates the connective tissue of the interfollicular spaces, mimicking thyroiditis and it is associated with early vascular permeation. This tumor, compared to the classic variants of thyroid carcinoma, is more aggressive and it has higher risk of recurrence. Papillary thyroid carcinoma should be considered as differential diagnosis in our population, in all metastatic papillary lesions, and even more in young female patients.

Utilidade da pericardioscopia no diagnóstico de derrame pericárdico / Usefulness of pericardioscopy in the diagnosis of pericardial effusion

O pericárdio pode ser afetado por doenças infecciosas, neoplásicas, inflamatórias e metabólicas. Muitas condições exigem tratamentos específicos, de forma que um diagnóstico preciso é importante. Assim, a biópsia do pericárdio tem um papel importante na avaliação dos derrames pericárdicos. A pericardioscopia oferece a vantagem da tradicional abordagem subxifóide ao permitir acesso a partes do pericárdio que não poderiam ser alcançadas através de palpação digital, bem como visibilização direta através da janela subxifóide ou toracoscopia. Reportamos o caso de um paciente com grande derrame pericárdico e massa mediastinal não-diagnosticada, em quem a pericardioscopia videoassistida foi fundamental no diagnóstico e tratamento da doença.

The pericardium can be affected by infectious, neoplastic, inflammatory and metabolic diseases. Many conditions require specific treatment and, consequently, an accurate diagnosis is important. Therefore, the pericardial biopsy has an important role in the evaluation of pericardial effusions. The pericardioscopy offers the advantage of the traditional subxiphoid approach, as it allows access to parts of the pericardium that would not be reached by digital palpation, as well as direct visualization through the subxiphoid window or thoracoscopy. We report the case of a patient with a large pericardial effusion and an undiagnosed mediastinal mass, in which video-assisted pericardioscopy was fundamental in the diagnosis and treatment of the disease.

Quilopericárdio idiopático primário: relato de caso / Quilopericardio idiopático primario: informe de caso clínico / Primary idiopathic chylopericardium: case report

O acúmulo de quilo no espaço pericárdico ou quilopericárdio é uma condição que, com maior frequência, ocorre após trauma, cirurgia cardíaca e torácica ou associado a tumores, tuberculose ou linfoangiomatose. Quando não é possível a identificação precisa da etiologia, o quilopericárdio é denominado primário ou idiopático. Essa é uma situação clínica rara. Descrevemos um caso em paciente do sexo feminino, com 20 anos de idade, tratada cirurgicamente. A propósito do caso, apresentamos breve revisão da literatura e comentários sobre quadro clínico, etiopatogenia, exames diagnósticos complementares e opções de tratamento.

The accumulation of chyle in the pericardial space, or chylopericardium, is a condition occurring most frequently after trauma, cardiac and thoracic surgery, or in association with tumors, tuberculosis or lymphangiomatosis. When its precise cause cannot be identified, it is called primary or idiopathic chylopericardium. This is a rare clinical entity. We report the case of a surgically treated 20-year-old female patient. A brief review of the literature and comments on the clinical presentation, etiopathogenesis, ancillary diagnostic tests and treatment options are also presented.

La acumulación de quilo en el espacio pericárdico o quilopericardio es una condición que con mayor frecuencia ocurre después de trauma, cirugía cardíaca y torácica o asociado a tumores, tuberculosis o linfoangiomatosis. Cuando no es posible la identificación precisa de la etiología, el quilopericardio se denomina primario o idiopático. Esta es una situación clínica rara. Describimos un caso en paciente del sexo femenino, con 20 años de edad, tratada quirúrgicamente. A propósito del caso, presentamos una breve revisión bibliográfica y comentarios sobre el cuadro clínico, la etiopatogenia, exámenes diagnósticos complementarios y opciones de tratamiento.

Derrames pericárdicos crónicos severos idiopáticos / Idiophatic chronic severe pericardial effusion

El objetivo del presente trabajo es determinar la frecuencia la presentación clínica, tratamiento, evolución y pronóstico alejado en pacientes con Derrame Pericárdico Crónico Severo Idiopático (DPCSI)

Expansile lake of translucency in pericardial effusion. A manifestation of left ventricle to pericardial fistula from rupture of tuberculosis myocardial abscess

A 12 year old boy was admitted to a District hospital with history of abdominal pain, and persistent vomiting of several days duration. Exploratory laparotomy was done and terminal small intestine appearances were suggestive of ileocaecal tuberculosis. During post operative course he was found to have large bilateral pleural effusions on chest x-ray. Subsequently his general condition deteriorated and he was then shifted to tertiary care hospital where chest intubation was done. Echocardiography revealed large pericardial effusion with tamponade which was drained with a pigtail catheter, kept in situ for intermittent drainage. Clinical workup and investigations were consistent with disseminated tuberculosis for which anti-tuberculosis treatment was started. A month later, echocardiography was repeated for removal of pigtail catheter which revealed lake of translucency within the small residual pericardial fluid which was expansile with cardiac cycle. This was further evaluated with colour and colour M-mode. [Panel A,B,C,D]. Findings were suggestive of fistulous communication between left ventricular cavity and pericardial space secondary to tuberculous myocardial abscess rupture confirmed on histopathology post-operatively. What lends novelty to this case is that this serious but apparently innocuous looking finding could easily have been overlooked in a casual examination

Frequência de adenocarcinomas em derrames cavitários / Frequency of adenocarcinomas in serious effusions

Objetivo. Identificação de freqüência de adenocarcinomas de diferentes sítios primários em derrames cavitários. Material e Métodos. Foram estudados 2.317 casos: 1.146 de derrame pleural (943 mulheres e 203 homens), 1.168 de ascite (727 mulheres e 441 homens) e três pericárdio (duas mulheres e um homem) e realizada análise retrospectiva dos prontuários dos pacientes e correlação dos achados clínico-laboratoriais. Resultados. Os sítios primários mais freqüentes em derrames pleurais foram: mama (N=586 - 51,1 por cento), pulmão (N=185 - 16,1 por cento: 102 homens e 83 mulheres), ovário (N=124 - 10,8 por cento); em ascites: estômago (N=473 - 40,5 por cento: 300 homens e 173 mulheres), ovário (N=306 - 26,2 por cento) e mama (N=83 - 7,1 por cento). Desses, 555 casos foram citologicamente positivos para malignidade em derrames pleurais, 541 em ascite e dois em pericárdio. Os sítios primários mais freqüentes em derrames pleurais citologicamente positivos foram: mama (N=288 - 51,9 por cento), pulmão (N=92, 16,6 por cento: 45 homens e 47 mulheres) e ovário (N=54, 9,7 por cento); e, em ascites: ovário (N=205 - 37,9 por cento), estômago (N=202, 37,3 por cento: 119 homens e 83 mulheres) e mama (N=31 - 6,8 por cento). Em 47 derrames pleurais (8,5 por cento) e 37 ascites (6,8 por cento), a origem dos adenocarcinomas persistiu indeterminada. Conclusão. As freqüências estabelecidas poderão, em associação e dados clínicos, orientar a investigação dos sítios primários de adenocarcinomas metastáticos.

Valor da biópsia de pericárdio no diagnóstico etiológico das pericardiopatias / Value of pericardial biopsy in the etiologic diagnosis of pericardial diseases

PURPOSE: To determine the value of pericardial biopsy as a complementary exam in the etiology of pericardial effusion. METHODS: We analyzed retrospectively (from 1990 to 1997) 38 patients with pericardial effusion. The age ranged between 3 months and 79 years (mean 41.15 +/- 21.78 years). Pericardial biopsy was performed in all cases through a subxiphoid incision. RESULTS: In 4 patients (10.5) the biopsy was able to define etiology, 2 had tuberculosis and 2 neoplasias (1 undetermined adenocarcinoma, 1 mesotelioma). In 34 patients the biopsy showed non-specific chronic pericarditis. CONCLUSION: Pericardial biopsy was not an effective method to determine the etiological diagnosis in pericardial effusion patients. We believe that we have to individualize the indication of pericardial biopsy especially if tuberculosis or neoplasia are suspected.

Disfunção sistólica aguda de ventrículo esquerdo após drenagem de derrame pericárdico / Transient left ventricular systolic dysfunction after pericardial effusion drainage

Paciente com timoma e função sistólica normal do ventrículo esquerdo desenvolveu tamponamento cardíaco, revertido por pericardiocentese. Após quatro dias, foi submetida à exérese do tumor e, em aproximandamente uma semana da drenagem, apresentou disfunção sistólica aguda e grave do ventrículo esquerdo, que melhorou com terapia venosa, normalizando o quadro em três dias.

Neoplasias malignas en efusiones pleurales peritoneales y pericardicas: aspectos citomorfológicos (1991-1996) / Malignant neoplasias un pleural peritoneal and pericardit effusiones: cytomorphologic aspects (1991-1996)

Se estudiaron 1530 citologías de efusiones pleurales, peritoneales y pericárdicas, procesadas en la Sección de Citopatología Instituto Anatomopatológico "J.A. O'Daly" de la Universidad Central de Venezuela. Se revisaron además las historias clínicas de los pacientes y se hizo correlación de los hallazgos citológicos con los histológicos. Se encontraron 107 efusiones neoplásicas predominando los derrames pleurales (61,68 por ciento), seguidos por los peritoneales (41,12 por ciento), y en proporción los pericárdicos (0,93 por ciento). El sexo femenino predominó en las lesiones metastásicas pleurales y peritoneales. Los adenocarcinomas pulmonares constituyeron la primera causa de efusión pleural, y los de ovario en la peritoneal. Con este procedimiento se evidenció una alta sensibilidad y especificidad. Los resultados sugieren que el estudio de las efusiones constituye una herramienta diagnóstica en el estudio de un paciente con neoplasia de primario conocido o desconocido

Angiosarcoma del corazón y su ruptura espontánea. Rara causa de pericarditis efusivo-constrictiva. Presentación de un caso y revisión de la literatura / Angiosarcoma of the heart and its spontaneous rupture. A rare cause of effusive-constrictive pericarditis. A case report and review of the literature

The authors present the clinical history of a male 44 year old patient who was hospitalized with the diagnosis of pericardial constriction and effusion and operated on as an emergency because of spontaneous cardiac rupture and was found to have a cardiac adenosarcoma. They review the literature in order to discuss a very rare cause of hemopericardium and constrictive pericarditis with epidemiologic, diagnostic, therapeutic and prognostic commentaries and secondly, to try to establish if this type case does not represent a diagnostic problem for the ecocardiographer since an angiosarcoma that occupies the pericardial space can be confused with a hemopericardium. They also mention other imaging studies that are used to better characterize and diagnose these tumors