ABSTRACT
Post-transplantation lymphoproliferative disorders (PTLD) are a commonly occurring condition following solid organ transplantation (SOT) and, rarely, hematopoietic stem cell transplantation (HSCT). As the name suggests, a PTLD is a condition where there is a clonal proliferation of lymphoid cells that occurs as a complication after transplantation. Though the clonal origin cell is primarily associated with the B-cell lineage, there are existing cases in the literature describing PTLD from the T-cell lineage. Large granulocytic leukemia (LGL) is one rare T-cell lineage subtype that typically progresses with a passive clinical course and is discovered with leukocytosis and peripheral blood smears demonstrating large granules in lymphocytes. In this study, we describe two patients initially diagnosed with acute myeloid leukemia (AML) who were both found to have T-cell PTLD after undergoing allogeneic hematopoietic stem cell transplant. One was found with a clonal expansion of T-cells on flow cytometry and the other with LGL on peripheral blood and flow cytometry. This discovery was made at 16 and 20 months after their transplant respectively. Distinguishing factors for these two patients are demonstrated by the derivation of lymphoproliferative disorder from graft vs. host disease (GVHD) or viral etiology, which is significant as both of which have been shown to be associated with PTLD. Epstein-Barr virus (EBV) and cytomegalovirus (CMV) positivity have been shown to be associated with PTLD, and both our patients were EBV-negative but had harbored prior CMV infections. Additionally, they had a benign course with no development of cytopenias or symptoms since the time of diagnosis. These two cases add to the growing literature that is working to better characterize the rare development of LGL and, in general, T-cell PTLD following allogeneic bone marrow transplantation.
ABSTRACT
INTRODUCCIÓN:La embolización de cuerpos extraños intravasculares es una complicación poco frecuente; sin embargo, está asociada a alteraciones cardíacas y pulmonares en más del 50% de los casos. Actualmente se prefiere realizar el manejo utilizando técnicas de extracción por cateterismo cardíaco, esto debido a la naturaleza menos invasiva del procedimiento y a las menores tasas de mortalidad y complicaciones asociadas. A continuación se presenta un reporte de caso donde se realizó la extracción un catéter intracardiaco mediante vía percutánea. CASO CLÍNICO: Lactante de sexo masculino, de 51 días de vida, con antecedentes de prematuridad extrema y peso adecuado para edad gestacional, ingresado en el servicio de neonatología; a quien como acceso vascular central se le colocó un catéter percutáneo femoral. Tras el retiro del mismo se apreció rotura y embolización de los dos tercios distales; la evaluación radiológica evidenció catéter a nivel de cavidades cardíacas derechas. EVOLUCIÓN: Se inició antibioticoterapia por el riesgo de infección asociado. De forma exitosa se realizó la extracción del cuerpo extraño por intervencionismo percutáneo; el paciente evolucionó favorablemente, no presentó ninguna complicación. CONCLUSIÓN: La rotura y embolización del catéter es un evento poco frecuente que incrementa la morbimortalidad de los pacientes ingresados en neonatología. La extracción percutánea debe ser la primera opción por la eficacia y seguridad del procedimiento.(au)
BACKGROUND: The embolization of foreign intravascular bodies is a rare complication; however, it is associated with cardiac and pulmonary dysfunction in more than 50% of cases. Currently, it is preferred to perform the management using extraction techniques by cardiac catheterization; this is explained by the less invasive nature of the procedure and the lower mortality and complications rates. The following is a case report where an intracardiac catheter was extracted by a percutaneous procedure. CASE REPORT: Male, 52-day-old infant, with history of extreme prematurity and adequate weight for gestational age; hospitalized in the neonatology service; as central vascular access a percutaneous femoral catheter was placed. After removal, rupture and embolization of the distal two thirds were observed; the radiological evaluation showed a catheter at the level of right heart cavities. EVOLUTION: By the associated infection risk, antibiotic therapy was initiated. The foreign body was extracted successfully by percutaneous intervention; the patient presented a favorable evolution without any complications. CONCLUSIONS: The catheter rupture and embolization is a rare event that increases morbidity and mortality rates of patients admitted to neonatology. Percutaneous extraction should be the first option by the procedure efficacy and safety.(au)
Subject(s)
Humans , Male , Infant , Catheterization , Embolism , Femoral Vein , Catheters , Foreign BodiesABSTRACT
INTRODUCCIÓN: La tetralogía de Fallot representa la cardiopatía congénita cianógena más frecuente después del primer año de vida, ocurre aproximadamente en 1 de cada 3 500 nacimientos y representa el 7 al 10% de todas las Enfermedades Cardiacas Congénitas. Su variante extrema que se acompaña de atresia pulmonar representa el 1 a 2% de las cardiopatías congénitas. Presentamos una Tetralogía de Fallot Extrema Ductus Dependiente de manejo complejo. CASO CLÍNICO: Se trata de un neonato a término de 12 días de vida, adecuado para la edad gestacional, sin factores de riesgo prenatales, ni antecedentes patológicos familiares, el cual es diagnosticado de Tetralogía de Fallot Extrema por ecocardiograma. EVOLUCIÓN: Paciente inicialmente tratado con infusión de prostaglandina E1. Posteriormente mediante fístula Blalock-Taussig izquierda. CONCLUSIONES: Para mejorar el pronóstico y sobrevida de un paciente con Tetralogía de Fallot Extrema el diagnóstico prenatal oportuno y el tratamiento apropiado es de vital importancia, sin embargo el tratamiento definitivo con derivaciones pulmonares sistémicas representan complicaciones con riesgo de mortalidad. El presente caso tuvo un desenlace desfavorable.
BACKGROUND: The Tetralogy of Fallot represents the most common cyanogenic heart disease after the first year of life. It occurs in 1 of 3 500 live births and accounts as 7 to 10% of all Congenital Heart Diseases. Its extreme variant is accompanied by pulmonary atresia and accounts 1 to 2% of the Congenital Heart Diseases. We present an Extreme Tetralogy of Fallot Ductus Dependent of complex management. CLINICAL CASE: A full term 12 day neonate, adequate for gestational age, without prenatal risk factors or pathologic family antecedents, is diagnosed with Extreme Tetralogy of Fallot by echocardiogram. EVOLUTION: The patient was treated initially with an infusion of prostaglandin E1. Then, a left Blalock-Taussig shunt was performed. CONCLUSIONS: To improve the prognosis and survival rates of patients with Extreme Tetralogy of Fallot , a timely diagnosis and treatment are of vital importance. Definitive treatment with systemic pulmonary shunts carries high risk complications. The present case had an unfavorable evolution.
