¿Es la tuberculosis ganglionar una verdadera enfermedad tuberculosa? / Is lymph node tuberculosis a true tuberculosis disease?

Introducción: La presencia de adenopatías intratorácicas es el patrón característico de la tuberculosis pediátrica. Puede interpretarse como una infección o una enfermedad tuberculosa, con las consiguientes diferencias terapéuticas. El objetivo de este estudio fue determinar si los pacientes con adenopatías intratorácicas aisladas presentan diferencias clínicas, diagnósticas y microbiológicas respecto a los pacientes con otras formas de enfermedad tuberculosa. Material y métodos: Se estudiaron todos los pacientes menores de 14 años diagnosticados de enfermedad tuberculosa en Cantabria entre 2005 y 2014. Se clasificaron en dos grupos: pacientes con adenopatías intratorácicas exclusivamente y pacientes que presentaron otras formas de tuberculosis. Se compararon entre ambos grupos los síntomas clínicos, la velocidad de sedimentación globular, el resultado de la prueba de la tuberculina (PT) y el aislamiento microbiológico. Resultados: Se diagnosticaron 81 pacientes con enfermedad tuberculosa. El 38,3% presentó tuberculosis ganglionar intratorácica y el resto otras formas de tuberculosis. La media de edad ± desviación estándar en el momento del diagnóstico fue de 70,46 ± 43,6 meses. Los pacientes con tuberculosis ganglionar resultaron asintomáticos con mayor frecuencia y presentaron diámetros de induración de la PT significativamente mayores. El aislamiento microbiológico se consiguió en un 25,9% del total. No se observaron diferencias significativas en el aislamiento microbiológico entre ambos grupos (el 35,5 frente al 16,13%; p= 0,074). En ningún paciente con adenopatías detectadas mediante tomografía computarizada se aisló Mycobacterium tuberculosis. Discusión: El aislamiento de M. tuberculosis constituye el gold standard para el diagnóstico de enfermedad tuberculosa, estableciendo el diagnóstico diferencial con la infección. En este estudio, los pacientes con tuberculosis ganglionar presentaron un porcentaje de aislamiento microbiológico similar a los pacientes con otras formas de tuberculosis. Según estos resultados, el aislamiento microbiológico de las tuberculosis ganglionares no sería un hallazgo casual, por lo que las formas ganglionares deberían considerarse una enfermedad en lugar de una infección tuberculosa

Introduction: The presence of intrathoracic lymph nodes is the characteristic pattern of pediatric tuberculosis but can be interpreted as infection or tuberculosis disease with different therapeutic approaches. The aim of this study was to determine if patients with isolated intrathoracic lymph nodes had clinical, diagnostic and microbiological features compared with patients diagnosed with other forms of tuberculosis disease. Material and methods: All patients younger than 14 years of age diagnosed with tuberculosis in Cantabria between 2005 and 2014 were included in the study. They were classified into two groups: patients with exclusively intrathoracic adenopathies and those with other forms of tuberculosis. Clinical symptoms, erythrocyte sedimentation rate, tuberculin skin test (TST) results and microbiological isolation between the two groups were compared. Results: A total of 81 patients were diagnosed with tuberculosis, 38.3% had nodal tuberculosis and the rest other forms of tuberculosis. The mean age at diagnosis was 70.46 ± 43.6 months. Patients with nodal tuberculosis were more frequently asymptomatic and had significantly higher TST induration diameters. Microbiological isolation was achieved in 25.9% of the patients and no significant differences in microbiological isolation between the two groups were observed (35.5 vs. 16.13%; p= 0.074). No Mycobacterium tuberculosis was isolated in any patient with lymphadenopathies detected by computed tomography. Discussion: The microbiological isolation is the gold standard of tuberculosis disease. Isolation of M. tuberculosis was not significantly superior in the group of patients with exclusive lymph node tuberculosis suggesting that lymph node tuberculosis should be considered a true tuberculosis disease

[Results of the implementation of a protocol for outpatient management of the paediatric patient with tuberculosis]. / Resultados de la implantación de un protocolo para el manejo ambulatorio del paciente pediátrico con enfermedad tuberculosa.

OBJECTIVE: To assess the results of the implementation of a protocol for the outpatient management of paediatric patients with tuberculosis, and to compare it with the previous approach. MATERIAL AND METHODS: All patients younger than 14 years of age diagnosed with tuberculosis in Cantabria between 2005 and 2014 were included in the study. The pre-implementation period included patients admitted for gastric aspirate collection and to start treatment until 2010 (Pre-group). The post-implementation period was from 2010 onwards, using a protocol established for the outpatient management of these patients, with admission only being for clinical or social reasons, post-implantation period (Post-group). RESULTS: A total of 82 patients were studied: 29 from the Pre-group and 53 from Post-group. The median age was 61 months (IQR 32.5-97.75). All patients in the Pre-group were systematically admitted, compared to 26.4% of the Post-group (P<.001). The mean hospital stay was higher (7.27±7.1 days) in the Pre-group than in Post-group (3.4±11.46 days) (P<.0001). Only in 6.9% of patients from Pre-group were the 3 microbiological samples recommended for diagnosis following the international guidelines were provided, whereas they were provided by 73.58% patients from Post-group (P<.001). Of the cultures performed, 26.6% were positive for Mycobacterium tuberculosis, 37.5% of the Pre-group and 21.6% of the Post-group (P=.121). No significant differences were observed between the groups in other parameters related to treatment such as, therapeutic adherence, treatment not adjusted to the guidelines, treatment withdrawal or relapse.. DISCUSSION: Although guidelines recommend three microbiological samples for culture, no superior microbiological isolation was detected despite the increased number of samples collected. The management in hospital clinics of patients with suspected tuberculosis with stable clinical situation show similar or better clinical and microbiological results to the previous management, with lower hospital admission rate and with the subsequent cost savings.

IVIVC approach based on carbamazepine bioequivalence studies combination.

The aim of the present study was to explore the feasibility of obtaining an IVIVC by combination of data from two bioequivalence (BE) studies of carbamazepine (CBZ) in order to assess if the previously published dissolution media and conditions could be applicable to any other oral immediate release (IR) CBZ products with conventional excipients. Twenty-four healthy male subjects from two BE study received one IR dose of the test (test 1 or 2) or the reference formulation (Tegretol, 400 mg). Dissolution studies of the IR CBZ tablets were performed in two different laboratories. In order to develop IVIVC, individual or average data analysis were considered. A level C, level B and level A correlation have been successfully developed by combining data from different BE studies of CBZ immediate release drug products. A level A IVIVC was developed with all four datasets with a good R2 for all the combinations of in vivo and in vitro data. A dissolution medium containing 1% SLS has demonstrated its suitability as the universal biopredictive dissolution medium, even if different batches and in vivo/in vitro studies were combined.

Hemocultivos en urgencias pediátricas. Guía práctica de recomendaciones: indicaciones, técnica de extracción, procesamiento e interpretación / Blood cultures in the paediatric emergency department. Guidelines and recommendations on their indications, collection, processing and interpretation

El hemocultivo (HC) es el método diagnóstico de elección ante la sospecha de bacteriemia, siendo una de las técnicas microbiológicas más solicitadas en pediatría. Diversos cambios han acontecido en los últimos años como la introducción de nuevas vacunas, el aumento creciente de pacientes portadores de catéteres vasculares centrales, o la irrupción de los sistemas automáticos de procesamiento de los HC. Dichos cambios han propiciado la revisión y la actualización de los distintos aspectos relacionados con esta técnica con el fin de optimizar su uso. Se presenta una guía práctica sobre recomendaciones acerca de la extracción, el procesamiento y la interpretación de los HC elaborada por la Sociedad Española de Urgencias de Pediatría y la Sociedad Española de Infectología Pediátrica. Tras revisar la información científica disponible, se presentan una serie de recomendaciones para cada uno de los siguientes apartados: indicaciones en Urgencias, técnica de extracción, transporte y procesamiento de la muestra, factores a tener en cuenta en situaciones especiales (indicaciones e interpretación de resultados en el paciente inmunodeprimido y/o portador de catéter vascular central, indicaciones de HC para anaerobios), diferenciación entre bacteriemia y contaminación ante un HC con crecimiento bacteriano y actitud a tomar ante un HC positivo en el paciente con fiebre sin foco

Blood culture (BC) is the gold standard when a bacteraemia is suspected, and is one of the most requested microbiological tests in paediatrics. Some changes have occurred in recent years: the introduction of new vaccines, the increasing number of patients with central vascular catheters, as well as the introduction of continuous monitoring BC systems. These changes have led to the review and update of different factors related to this technique in order to optimise its use. A practice guideline is presented with recommendations on BC, established by the Spanish Society of Paediatric Emergency Care and the Spanish Society for Paediatric Infectious Diseases. After reviewing the available scientific evidence, several recommendations for each of the following aspects are presented: BC indications in the Emergency Department, how to obtain, transport and process cultures, special situations (indications and interpretation of results in immunosuppressed patients and/or central vascular catheter carriers, indications for anaerobic BC), differentiation between bacteraemia and contamination when a BC shows bacterial growth and actions to take with a positive BC in patients with fever of unknown origin

[Blood cultures in the paediatric emergency department. Guidelines and recommendations on their indications, collection, processing and interpretation]. / Hemocultivos en urgencias pediátricas. Guía práctica de recomendaciones: indicaciones, técnica de extracción, procesamiento e interpretación.

Blood culture (BC) is the gold standard when a bacteraemia is suspected, and is one of the most requested microbiological tests in paediatrics. Some changes have occurred in recent years: the introduction of new vaccines, the increasing number of patients with central vascular catheters, as well as the introduction of continuous monitoring BC systems. These changes have led to the review and update of different factors related to this technique in order to optimise its use. A practice guideline is presented with recommendations on BC, established by the Spanish Society of Paediatric Emergency Care and the Spanish Society for Paediatric Infectious Diseases. After reviewing the available scientific evidence, several recommendations for each of the following aspects are presented: BC indications in the Emergency Department, how to obtain, transport and process cultures, special situations (indications and interpretation of results in immunosuppressed patients and/or central vascular catheter carriers, indications for anaerobic BC), differentiation between bacteraemia and contamination when a BC shows bacterial growth and actions to take with a positive BC in patients with fever of unknown origin.

Impact of the Xpert(®) MTB/RIF molecular test on the late diagnosis of pulmonary tuberculosis.

We analysed the impact of the Xpert(®) MTB/RIF molecular test on health-care diagnostic delay among tuberculosis patients. Diagnostic delay was 17.2 days (standard deviation 23.2, median 10 days). Of 128 patients recruited into the study, 60 (47%) were smear-negative; of these, 40 (67%) were Xpert-positive and were started on treatment without culture. The sensitivity of smear microscopy was 53% compared with 82% for Xpert. In smear-negative patients, delay in Xpert-positive and -negative patients was respectively 15.5 ± 13.2 and 25.5 ± 12.5 days (P = 0.002). We conclude that Xpert results were significantly associated with shorter health-care diagnostic delay, particularly in smear-negative patients.

Neumotórax recidivante como forma de presentación de tuberculosis pulmonar postprimaria / Recurrent pneumothorax presenting as post-primary pulmonary tuberculosis

Introducción: La tuberculosis postprimaria se produce por una reactivación de la enfermedad años después del contacto inicial. Es infrecuente en la infancia. Afecta a los lóbulos pulmonares superiores produciendo cavitaciones, y habitualmente cursa sin adenopatías. Caso clínico: Se presenta el caso de una paciente de 11 años de edad, con un neumotórax recidivante secundario a una tuberculosis cavitada. La fiebre persistió durante 2 meses tras el inicio de tratamiento. La paciente precisó una resección parcial del lóbulo superior izquierdo debido a una fístula broncopleural. Tras 6 meses de tratamiento tuberculostático presentó una recidiva. Conclusiones: La tuberculosis postprimaria puede aparecer en adolescentes y causar lesiones pulmonares graves que precisen resección quirúrgica. Los enfermos tienen una gran capacidad infectante. La respuesta al tratamiento es lenta debido a la elevada concentración bacilífera de las cavernas. La baciloscopia puede tardar meses en negativizarse. El tratamiento tuberculostático debe administrarse durante, al menos, 9 meses, y puede ser necesario prolongar la fase de inducción (AU)

Introduction: Post-primary tuberculosis is caused by reactivation of the disease years after the initial contact. It is rare in childhood. Affects upper lung lobes producing cavitations and usually presents without lymphadenopathy. Case report: We report the case of an eleven years-old patient with recurrent pneumothorax secondary to cavitated tuberculosis. The fever persisted two months after initiation of treatment. Partial resection of the left upper lobe was required due to bronchopleural fistula. After completing six months of tuberculosis treatment the infection relapsed. Conclusions: Post-primary tuberculosis can occur in adolescents and cause severe lung injury requiring surgical resection. Patients have a high capacity of spread disease. Treatment response is slow due to the high bacilliferous concentration on the caves. The baciloscopy may take months to become negative. Tuberculostatic treatment should be administered for at least, nine months and may be necessary to extend the induction phase (AU)

Descripción de un brote de tuberculosis y utilidad de la ecografía mediastínica / Description of tuberculosis outbreak and usefulness of mediastinal ultrasound

Objetivos: Describir un brote escolar de tuberculosis y comparar las características con otros brotes. Proponer la ecografía mediastínica como ayuda en el diagnóstico y seguimiento. Pacientes y métodos: Estudio descriptivo retrospectivo de la transmisión de la infección tuberculosa en microepidemia. Criterios de infección: Mantoux ≥ 5 mm, paciente asintomático, estudio radiológico, microbiológico y analítico normal. Criterios de enfermedad: Mantoux ≥ 5 mm y alguno de los estudios anteriores patológico. Se utilizó la ecografía mediastínica como método complementario de la radiografía de tórax (RxT). Se realizó una tomografía computarizada (TC) cuando el resultado combinado de la ecografía y la RxT no fue concluyente. Resultados: De los 412 alumnos, 17 presentaron infección y 16 enfermedad tuberculosa. Además, 4 contactos extraescolares resultaron enfermos. Manifestaciones clínicas: un eritema nudoso, una púrpura de Schönlein-Henoch, 12 con tos y 9 con fiebre. RxT en enfermos: 3 normales, 7 no concluyentes y 10 con los siguientes hallazgos: 2 neumonías, 2 atelectasias, 2 complejos primarios y 4 pacientes exclusivamente con adenopatías. Todos los enfermos con RxT normal o indeterminada presentaron adenopatías mediastínicas visualizadas en la ecografía, excepto en 3 demostradas por TC. Aislamiento microbiológico: 6 casos (31%). Conclusiones: El número de enfermos respecto a infectados fue superior a otros brotes. Existe una gran variabilidad en el enfoque diagnóstico de las microepidemias de tuberculosis. Resulta compleja la diferenciación entre infección y enfermedad. La clínica, analítica y la RxT son inespecíficas. Existen enfermos con RxT normal, ecografía patológica y aislamiento microbiológico. La ecografía mediastínica puede tener un papel importante en el diagnóstico y el seguimiento de enfermedad tuberculosa (AU)

Objectives: Describe a school outbreak of tuberculosis and compare the features with other outbreaks. Propose mediastinal ultrasound as an aid in its diagnosis and monitoring. Patients and methods: Retrospective descriptive study of the transmission of tuberculosis infection in a micro-epidemic. Infection criteria: Mantoux≥5 mm, asymptomatic patient, with normal radiological, microbiological and analytical studies. Disease criteria: Mantoux ≥5 mm and any of the above pathological studies. Mediastinal ultrasound was used as a complementary method of chest radiography (CXR). Computed tomography (CT) as the combined result of ultrasound and CXR was inconclusive. Results: Seventeen out of 412 students were infected and 16 with tuberculosis disease. In addition, 4 out-school contacts were diagnosed of tuberculosis. Clinical manifestations: one erythema nodosum, one Henoch-Schönlein purpura, twelve with cough and fever nine. CXR results in patients: 3 normal, 7 inconclusive, and 10 with the following findings:2 pneumonia, 2 pulmonary atelectasis, 2 primary complexes, 4 patients only with lymphadenopathy. All patients with normal or indeterminate CXR showed mediastinal lymphadenopathy visualized on ultrasound but 3 demonstrated by CT. Microbiological isolation: 6 cases (31%).Conclusions: The number of infected patients was higher compared to other outbreaks There is great variability in the diagnostic approach to tuberculosis micro-epidemics. It is complex to differentiate between infection and disease. The clinical, laboratory and CXR are nonspecific. There are patients with normal CXR, pathological ultrasound and microbiological isolation. Mediastinal ultrasound can play an important role in the diagnosis and management of tuberculosis disease (AU)

Primary pulmonary botryomycosis: a bacterial lung infection mimicking lung cancer.

Primary pulmonary botryomycosis, or bacterial pseudomycosis, is an unusual bacterial infection characterised by the formation of eosinophilic granules that resemble those of Actinomyces species infection. The diagnosis of botryomycosis is based on culture of the granules revealing gram-positive cocci or gram-negative bacilli. The bacterial pathogen most frequently found is Staphylococcus aureus. The pathobiology remains unknown. Pulmonary botryomycosis can resemble actinomycosis, tuberculosis or invasive carcinoma. Definitive treatment requires a combination of both surgical debridement and long-term antimicrobial therapy. We present a case of primary pulmonary botryomycosis in an immunocompetent patient.

[Description of tuberculosis outbreak and usefulness of mediastinal ultrasound]. / Descripción de un brote de tuberculosis y utilidad de la ecografía mediastínica.

OBJECTIVES: Describe a school outbreak of tuberculosis and compare the features with other outbreaks. Propose mediastinal ultrasound as an aid in its diagnosis and monitoring. PATIENTS AND METHODS: Retrospective descriptive study of the transmission of tuberculosis infection in a micro-epidemic. Infection criteria: Mantoux ≥ 5mm, asymptomatic patient, with normal radiological, microbiological and analytical studies. Disease criteria: Mantoux ≥ 5mm and any of the above pathological studies. Mediastinal ultrasound was used as a complementary method of chest radiography (CXR). Computed tomography (CT) as the combined result of ultrasound and CXR was inconclusive. RESULTS: Seventeen out of 412 students were infected and 16 with tuberculosis disease. In addition, 4 out-school contacts were diagnosed of tuberculosis. CLINICAL MANIFESTATIONS: one erythema nodosum, one Henoch-Schönlein purpura, twelve with cough and fever nine. CXR results in patients: 3 normal, 7 inconclusive, and 10 with the following findings: 2 pneumonia, 2 pulmonary atelectasis, 2 primary complexes, 4 patients only with lymphadenopathy. All patients with normal or indeterminate CXR showed mediastinal lymphadenopathy visualized on ultrasound but 3 demonstrated by CT. Microbiological isolation: 6 cases (31%). CONCLUSIONS: The number of infected patients was higher compared to other outbreaks There is great variability in the diagnostic approach to tuberculosis micro-epidemics. It is complex to differentiate between infection and disease. The clinical, laboratory and CXR are nonspecific. There are patients with normal CXR, pathological ultrasound and microbiological isolation. Mediastinal ultrasound can play an important role in the diagnosis and management of tuberculosis disease.

Necrotising pneumonia caused by Lactococcus lactis cremoris.

Lactococcus lactis cremoris is a facultative anaerobic, gram-positive coccus whose natural host is bovine livestock. It may form part of the normal human bacterial flora found in the oropharynx, the gastrointestinal tract and the vagina. This bacterium is essential in the food industry, where it is used in milk fermentation to obtain cheese, yoghurt, etc. Exposure to unpasteurised dairy products has thus been recognised as a risk factor for infection by this organism. It is generally considered to be non-pathogenic, although it appears that pathogenicity may be emerging. We present an atypical case of necrotising pneumonia caused by L. lactis cremoris.

Textiloma: en el diagnóstico diferencial de masas abdominales / Textiloma in the differential diagnosis of abdominal masses

Presentamos un caso de diagnóstico inicial de masa pélvica de probable origen ginecológico, etiquetada de mioma uterino como hipótesis diagnóstica principal, en que los hallazgos intraoperatorios descartan esta posibilidad y no confirman ninguna otra, difiriendo el diagnóstico hasta el informe final del anatomopatólogo en que describe una masa de origen textil persistente desde la apendicectomía realizada 18 años antes. Se demuestra así la discordancia existente entre el diagnóstico inicial y el definitivo, además de la necesidad de plantear el cuerpo extraño intraabdominal en el diagnóstico diferencial de este tipo de masas en pacientes intervenidos quirúrgicamente con anterioridad (AU)

We present a case of a pelvic mass of probable gynecological origin, whose principal suspected diagnosis was uterine myoma. Intraoperative findings excluded this diagnosis but failed to confirm other possibilities. The definitive diagnosis was delayed until the pathological report described a mass caused by a textile foreign body retained since an appendicectomy performed 18 years previously. The present report illustrates the discrepancy between the initial and definitive diagnosis, as well as the need to include an intraabdominal foreign body in the differential diagnosis of this type of mass in previously operated patients (AU)

Fibrilación auricular en paciente oncológica en remisión / Atrial fibrillation in an oncological patient with remission

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