RESUMEN
Bronchopulmonary sequestration consists of a mass of abnormal lung tissue that has no normal connection with the bronchial tree and is supplied with blood from an aberrant artery mostly originating in the thoracic aorta. Two forms are recognized: intralobar and extralobar sequestration. The first is localized within the normal visceral pleura and has a venous drainage into the pulmonary system; the latter is localized without the normal lung in its own pleura with venous drainage into the systemic venous system. Intralobar sequestration is the most common form accounting for 75% of the cases. Intralobar sequestration usually presents in adolescence or adulthood with signs of recurrent pneumonia. Extralobar sequestration presents early in life with respiratory distress or feeding difficulties and is frequently associated with other congenital malformations. The diagnosis is confirmed by CT scan of the lungs and magnetic resonance angiography as demonstration of the aberrant vascular supply is essential for the diagnosis. Therapy consists in surgical removal. We present a case of intralobar sequestration in a 10-year-old girl. The clinical symptomatology was typical. Arterial supply with two aberrant arteries and mixed venous drainage into the pulmonary and systemic systems were particular features.
Asunto(s)
Secuestro Broncopulmonar/diagnóstico , Secuestro Broncopulmonar/diagnóstico por imagen , Secuestro Broncopulmonar/patología , Niño , Femenino , Humanos , Angiografía por Resonancia Magnética , Toracotomía , Tomografía Computarizada por Rayos XRESUMEN
This paper describes an outbreak of Legionnaire's disease at Kapellen in Belgium among visitors of the annual fair. The investigation started on 13th November 1999 after a respiratory physician notified the health authorities of the province of Antwerp of presumptive cases of legionellosis. The annual commercial fair at Kapellen, a small town in northern Belgium, was held 10 days previously and attracted 50,000 visitors. Stand employees (professionals or volunteers), technical staff of the hall and visitors at the fair were affected cases. An exploratory case-control study was conducted to trace the source of the epidemic. To complete the inventory study and to evaluate other risk factors, a cohort study of exhibitors and staff was conducted. Ninety-three people met the case definition, 41 of whom were considered as confirmed, 14 as presumptive cases and 38 as possible/clinical cases. Five people died. Further testing at the reference laboratory confirmed all strains to be Legionella pneumophila serogroup 1. The sensitivity for culture was low (29.2%), and sensitivity for seroconversion was high (90.9%). For urinary antigen test, a sensitivity with Biotest EIA of 65.6% was found, and the sensitivity of polymerase chain reaction (PCR) was 85.7%. In all cases, the individual had visited the fair. Those individuals working in the central areas of the tent, near the aerosol-producing devices, were at higher risk of disease. Legionella was detected by PCR on swabs of the surfaces of the whirlpool. Although not fully proven, an aerosol-producing device was the most probable source of the outbreak.
Asunto(s)
Brotes de Enfermedades , Enfermedad de los Legionarios/epidemiología , Aerosoles , Bélgica/epidemiología , Estudios de Casos y Controles , Distribución de Chi-Cuadrado , Humanos , Enfermedad de los Legionarios/microbiología , Funciones de Verosimilitud , Modelos Logísticos , Reacción en Cadena de la Polimerasa , Factores de RiesgoRESUMEN
UNLABELLED: The efficacy and toxicity of a regimen adding ifosfamide to the more classical cisplatin-vindesine combination was studied in patients with advanced non-small cell lung cancer. Sixty-four good performance patients with inoperable stage III or stage IV were treated with VIP: vindesine 3 mg/m2 days 1 and 8, ifosfamide 1200 mg/m2 and platinum 30 mg/m2 days 1, 2 and 3, repeated every 4 weeks, up to a maximum of six cycles. Response rate, clinical data and radiological tests were rigourously reviewed by a panel. Overall response rate was 39% (95% confidence interval, 27%-51%) with three patients achieving a complete response; response rate in stage III was 48%. Median survival was 9 months. Toxicity consisted mainly of bone marrow toxicity and nausea/vomiting, but was manageable. There was no renal toxicity greater than grade 2, four severe infections, but no treatment-related deaths. CONCLUSION: VIP as mentioned above is very active in good performance patients with advanced non-small cell lung cancer. Its activity, together with its manageable toxicity--without severe renal or pulmonary toxicity--makes it an attractive candidate for induction chemotherapy.
Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Neoplasias Pulmonares/tratamiento farmacológico , Adenocarcinoma/tratamiento farmacológico , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Carcinoma de Células Grandes/tratamiento farmacológico , Carcinoma de Pulmón de Células no Pequeñas/mortalidad , Carcinoma de Pulmón de Células no Pequeñas/patología , Carcinoma de Células Escamosas/tratamiento farmacológico , Distribución de Chi-Cuadrado , Cisplatino/administración & dosificación , Cisplatino/efectos adversos , Cisplatino/uso terapéutico , Intervalos de Confianza , Femenino , Humanos , Ifosfamida/administración & dosificación , Ifosfamida/efectos adversos , Ifosfamida/uso terapéutico , Neoplasias Pulmonares/mortalidad , Neoplasias Pulmonares/patología , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Estudios Prospectivos , Tasa de Supervivencia , Factores de Tiempo , Vindesina/administración & dosificación , Vindesina/efectos adversos , Vindesina/uso terapéutico , Pérdida de PesoRESUMEN
The number of T-lymphocytes and T-lymphocyte subsets was measured in peripheral blood of 51 patients with rheumatoid arthritis. T-lymphocytes were counted by E-rosette tests and by the immunogold staining method with OKT3.PAN monoclonal antibody. Helper and suppressor T-lymphocytes were determined by the immunogold staining method with OKT4.IND and OKT8.SUP monoclonal antibody. The relative and absolute numbers of T-lymphocytes and helper T-lymphocytes in peripheral blood of patients with RA did not differ significantly from those in the blood of healthy subjects. However, the relative and absolute numbers of suppressor T-cells were significantly lower in patients with RA than in healthy subjects. The decrease of suppressor T-cells in the blood of patients with RA dit not correlate with the activity of the disease nor the presence of the rheumatoid factor.
Asunto(s)
Anticuerpos Monoclonales , Artritis Reumatoide/inmunología , Linfocitos T/clasificación , Adulto , Anciano , Femenino , Humanos , Recuento de Leucocitos , Masculino , Persona de Mediana Edad , Formación de Roseta , Linfocitos T Colaboradores-Inductores/inmunología , Linfocitos T Reguladores/inmunologíaRESUMEN
The numbers of T lymphocytes, B lymphocytes, helper and suppressor T lymphocytes were measured in peripheral blood of patients with autoimmune disease (rheumatoid arthritis, erythema nodosum, Sjögren's disease, Wegener's disease, idiopathic thrombocytopenia, pernicious anaemia and Hashimoto's disease). B lymphocytes were enumerated by direct immunofluorescence and T lymphocytes by E rosette tests and by indirect immunofluorescence with OKT3.PAN Helper and suppressor T lymphocytes were determined by indirect immunofluorescence with OKT4.IND and OKT8.SUP respectively. The numbers of T lymphocytes, B lymphocytes and helper T lymphocytes in patients with autoimmune disease were normal, but the numbers of suppressor T lymphocytes were significantly lower.