Resumen: la falla cardíaca avanzada es una enfermedad prevalente, con una tasa alta de mortalidad y hospitalización con relación a su estadio y perfil clínico, que cuesta en Norteamérica hasta el 20% de los recursos destinados para el manejo de la enfermedad cardiovascular. Se realizó un análisis transversal a una cohorte de 70 pacientes en tratamiento farmacológico y cardioresincronizador con o sin cardiodesfibirlador, o solo cardiodesfibrilador automático (ICD) implantado entre los años 2010 y 2012. Métodos: el presente es un estudio transversal. Resultados: 71% presentaron hipertensión arterial HTA; 65,75% cardiopatía isquémica, siendo el 58.3% portadores de resincronizador con o sin cardiodesfibrilador. El 90% de los pacientes tiene 2 o más medicamentos, 77% betabloqueador, 90% iECA o ARA II, 85.7% algún diurético. Conclusión: se caracterizaron los pacientes que recibieron terapia electrofisiológica para manejo avanzado de falla cardíaca.

Introduction: advanced heart failure it's a disease with a high prevalence in the world wide,with an increasing mortality and hospitalization rates, due to his severity and clinical profile. Which costs to the health system is up to 20% of the resources devoted to the management of cardiovascular disease in North Amerca. A cross-sectional study was made with 70 patients on pharmacological treatment and Cardiac Resynchronization Therapy with or without Implantable Cardioverter (CDI) or Implantable Cardioverter (CDI) among 2010 and 2012. Methods: a cross-sectional study. Results: we found 71% with hypertension, 65,75% ischemic cardiopathy , 58.3% with resynchronizator with or without CDI, 90% had two or more drugs for heart failure, 77% had beta blocker, 90% ACE inhibitor or ARB, 85.7% diuretics. Conclusion: patients with advanced heart failure who underwent electrophysiological therapy, were clinically characterized in Pereira, Colombia.

Introdução: a falha cardíaca avançada é uma doença altamente prevalente, com uma alta taxa de mortalidade e hospitalização em relação ao se estado e perfil clinico. O custo na América do Norte é até 20% dos recursos destinados para o acompanhamento das doenças cardiovasculares. Realizou-se uma análise transversal a grupo de 70 pacientes em tratamento farmacológico e cardio ressincronizador com e sem cardiodesfibirlador, ou somente cardiodesfibrilador automático (ICD) implantado entre os anos 2010 e 2012. Método: análise descritivo. Resultados: 71% apresentaram hta, 65,75% cardiopatia isquémica; sendo que 58.3% eram portadores de ressincronizador com ou sem cardiodesfibrilador. O 90% dos pacientes têm 2 ou mais medicamentos, 77% betabloqueador, 90% iECA ou ARA II, 85.7% algum diurético. Conclusão: caracterizaram-se os pacientes que receberam terapia eletrofisiológica para manejo avançado de falha cardíaca.

Aspects related to the users' cooperative work are not considered in the traditional approach of software engineering, since the user is viewed independently of his/her workplace environment or group, with the individual model generalized to the study of collective behavior of all users. This work proposes a process for software requirements to address issues involving cooperative work in information systems that provide distributed coordination in the users' actions and the communication among them occurs indirectly through the data entered while using the software. To achieve this goal, this research uses ergonomics, the 3C cooperation model, awareness and software engineering concepts. Action-research is used as a research methodology applied in three cycles during the development of a corporate workflow system in a technological research company. This article discusses the third cycle, which corresponds to the process that deals with the refinement of the cooperative work requirements with the software in actual use in the workplace, where the inclusion of a computer system changes the users' workplace, from the face to face interaction to the interaction mediated by the software. The results showed that the highest degree of users' awareness about their activities and other system users contribute to a decrease in their errors and in the inappropriate use of the system.

Introducción: el sarcoma granulocítico (SG) es una neoplasia maligna cuya incidencia es de 2,9% a3,1% en pacientes con leucemia mieloide (LM) o enfermedades mieloproliferativas. Se presentahabitualmente en hombres y en población africana, asiática y suramericana. Objetivo: describir las características imaginológicas del SG en la cara y el cráneo de cinco niños yjóvenes. Pacientes y métodos: presentamos cinco pacientes con SG en la cara y la base del cráneo. A cuatrode ellos se les hizo tomografía computarizada (TC) y a tres, resonancia magnética (RM) cerebral.Cuatro presentaron una masa de tejido blando en la órbita, dos tenían afectación ósea y otro revelólesión en el sistema nervioso central. En cuatro se diagnosticó leucemia mieloide aguda (LMA) . Conclusión: el SG puede manifestarse con invasión orbitaria y craneofacial en niños y adultosjóvenes. Usualmente los pacientes consultan por proptosis y edema orbitario. Con este cuadroclínico el SG es la primera probabilidad diagnóstica en el contexto de la LMA o las mielodisplasias. Enotras situaciones clínicas se debe hacer diagnóstico diferencial con complicaciones de sinusitis,rabdomiosarcoma, linfoma de la órbita y otras neoplasias. La imaginología demuestra invasión detejidos blandos e infiltración ósea. Es muy característico del SG afectar en un comienzo la paredlateral o la superior de la órbita. En algunos casos simula abscesos. El diagnóstico se confirma porhistopatología.

Introduction: Granulocytic sarcoma (GS) is a rare malignant neoplasia, with an incidence rate of 2.9% to 3.1% in patients with myeloid leukemia or myeloproliferative diseases. Usually it affects males, of African, Asian and South American populations. Objetive: To describe the radiological characteristics of GS in the face and skull of children and young people. Patients and methods: We report five patients with GS in the face and skull. Computerized tomography (CT) was carried out in four and orbital and brain magnetic resonance (MRI) in three. Out of the five, four had soft tissue masses in the orbit, two had bone infiltration, and in one there was a central nervous system lesion. In four patients acute myeloid leukemia was demonstrated. Conclusion: GS may affect the orbit, the face and the skull of children and young adults; it manifests with exophthalmia and orbital edema. It must be considered as a diagnostic possibility in the context of myeloid leukemia and myelodysplasias. Otherwise, differential diagnosis should be made with complications of sinusitis, orbital rhabdomyosarcoma, orbital lymphoma and other tumors. Imaging studies may help in the diagnosis by revealing soft tissue masses and areas of bone infiltration. In some cases GS may resemble abscesses. Diagnosis must be confirmed by histopathology.