Asthma diagnosis in infants and preschool children: a systematic review of clinical guidelines

Background and aim: The definition and diagnosis of asthma are the subject of controversy that is particularly intense in the case of individuals in the first years of life, due to reasons such as the difficulty of performing objective pulmonary function tests or the high frequency with which the symptoms subside in the course of childhood. Since there is no consensus regarding the diagnosis of asthma in preschool children, a systematic review has been carried out. Materials and methods: A systematic search was made of the clinical guidelines published in the last 10 years and containing information referred to the concept or diagnosis of asthma in childhood - including the first years of life (infants and preschool children). A series of key questions were established, and each selected guide was analyzed in search of answers to those questions. The review protocol was registered in the international prospective register of systematic reviews (PROSPERO), with registration number CRD42017074872. Results: Twenty-one clinical guidelines were selected: 10 general guides (children and adults), eight pediatric guides and three guides focusing on preschool children. The immense majority accepted that asthma can be diagnosed from the first years of life, without requiring pulmonary function tests or other complementary techniques. The response to treatment and the exclusion of other alternative diagnoses are key elements for establishing the diagnosis. Only one of the guides denied the possibility of diagnosing asthma in preschool children. Conclusions: There is generalized although not unanimous agreement that asthma can be diagnosed in preschool children

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Asthma diagnosis in infants and preschool children: a systematic review of clinical guidelines.

BACKGROUND AND AIM: The definition and diagnosis of asthma are the subject of controversy that is particularly intense in the case of individuals in the first years of life, due to reasons such as the difficulty of performing objective pulmonary function tests or the high frequency with which the symptoms subside in the course of childhood. Since there is no consensus regarding the diagnosis of asthma in preschool children, a systematic review has been carried out. MATERIALS AND METHODS: A systematic search was made of the clinical guidelines published in the last 10 years and containing information referred to the concept or diagnosis of asthma in childhood - including the first years of life (infants and preschool children). A series of key questions were established, and each selected guide was analyzed in search of answers to those questions. The review protocol was registered in the international prospective register of systematic reviews (PROSPERO), with registration number CRD42017074872. RESULTS: Twenty-one clinical guidelines were selected: 10 general guides (children and adults), eight pediatric guides and three guides focusing on preschool children. The immense majority accepted that asthma can be diagnosed from the first years of life, without requiring pulmonary function tests or other complementary techniques. The response to treatment and the exclusion of other alternative diagnoses are key elements for establishing the diagnosis. Only one of the guides denied the possibility of diagnosing asthma in preschool children. CONCLUSIONS: There is generalized although not unanimous agreement that asthma can be diagnosed in preschool children.

Planificación familiar en adolescentes que consultan en el Servicio de Ginecobstetricia Instituto de Previsión Social. Hospital Central, Paraguay, 2012/2015 / Family planning in adolescents who consult in the Obstetrics- Gynecology Service. "Hospital Central Instituto de Previsión Social". Paraguay, 2012/2015

INTRODUCTION: In our region, communication regarding sex education and family planning is generally poor, and adolescents who have sex without adequate knowledge about family planning methods are exposed to undesirable consequences. OBJECTIVE: To characterize the use of family planning methods in sexually active adolescents who consulted in the Obstetrics-Gynecology Service "Hospital Central Instituto de Previsión Social". Paraguay, from 2012 to 2015. METHODOLOGY: This was an observational, cross-sectional, descriptive study through a review of medical records. RESULTS: We evaluated the records of 100 sexually active adolescents aged 11 to 17 years. 88% came from urban areas and 96% were at the high school education level. Menarche occurred on average at age 12 and the age of first intercourse was 14.7 years. The mean time between menarche and the age of onset of sexual intercourse was 2.7 years. Ninety-six percent reported not having suffered intra-family violence. 66% reported having information about family planning prior to initiating sexual activity and 34% reported having no information. 34% did not use any contraceptive methods. 43% reported using condoms. 24% reported using oral contraceptives. Condom use was reportedly higher when subjects were in the mid-adolescence age range and when sexual activity first began during this time period. Adolescents who received family planning information prior to onset of sexual activity used oral contraceptives more frequently.

INTRODUCCIÓN: En nuestra región, en general la comunicación sobre educación sexual y la planificación familiar es deficiente y las adolescentes que tienen relaciones sexuales sin conocimiento adecuado sobre métodos de planificación familiar se exponen a consecuencias no deseadas. OBJETIVO: Caracterizar el uso de métodos de planificación familiar en adolescentes sexualmente activas que consultaron en el Servicio de Ginecobstetricia del Hospital Central del Instituto de Previsión Social, años 2012 al 2015. METODOLOGÍA: Estudio observacional, descriptivo de corte transversal por medio de revisión de las historias clínicas. RESULTADOS: De 100 adolescentes sexualmente activas con edades de 11 a 17 años. El 88% provenía de zona urbana y nivel secundario 96%. La menarca ocurrió en promedio a los 12 años y la edad que iniciaron relaciones sexuales fue 14,7 años. El tiempo promedio entre la menarca y la edad de inicio de relaciones sexuales fue 2,7 años. El 96% refirió no haber sufrido violencia intrafamiliar. Tuvieron información previa a las relaciones sexuales sobre métodos de planificación familiar 66% y no 34%. No utilizaron ningún método 34%. Uso de Preservativo 43%. Uso de Anticonceptivo oral 24%. En la adolescencia intermedia y cuando iniciaron sus relaciones sexuales en esta etapa fue con mayor frecuencia de uso de preservativos. Las adolescentes que recibieron información previa, utilizaron con mayor frecuencia el anticonceptivo oral.

Sensitisation to mites and other animal-derived home aeroallergens in children and its concordance as a measure of covariation of sensitisation

BACKGROUND: Sensitisation to home aeroallergens (mites, furry animals and cockroaches) is predominant in patients in our and other areas. Covariation of sensitisation (CS) to these allergens could be due to cross-reactivity or parallel sensitisation. METHODS: Skin prick tests were performed to common and second-line home aeroallergens, shrimp and tropomyosin in 253 paediatric patients seen in our Unit due to chronic respiratory symptoms. CS among the main allergens was analysed by means of Cohen's kappa coefficient of concordance (κ). RESULTS: House dust mites (HDM) were the main allergens involved in sensitisation, followed by furry animals, pollens, storage mites (SM), moulds and cockroaches. CS was very good between D. pteronyssinus and D. farinae (κ=0.81), and good between Dermatophagoides andEuroglyphus (κ=0.71), and decreased markedly to poor (κ<0.20) between HDM and SM or cockroaches. CS among SM and cockroaches was moderate to fair (κ=0.21-0.44). CS was good between shrimp and tropomyosin (κ=0.62), but null between shrimp-tropomyosin and HDM (κ=0.01-0.02), and poor to fair between shrimp-tropomyosin and SM or cockroaches (κ=0.06-0.34). CS between cat and dog was moderate (κ=0.50). CONCLUSIONS: We have shown the usefulness of κ in exploring CS in a population. In our area, with high sensitisation to HDM and other home allergens, CS is limited for most pairs of allergens, pointing to a lower incidence of cross-reactivity than could be expected, especially between HDM and SM or other invertebrates

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Sensitisation to mites and other animal-derived home aeroallergens in children and its concordance as a measure of covariation of sensitisation.

BACKGROUND: Sensitisation to home aeroallergens (mites, furry animals and cockroaches) is predominant in patients in our and other areas. Covariation of sensitisation (CS) to these allergens could be due to cross-reactivity or parallel sensitisation. METHODS: Skin prick tests were performed to common and second-line home aeroallergens, shrimp and tropomyosin in 253 paediatric patients seen in our Unit due to chronic respiratory symptoms. CS among the main allergens was analysed by means of Cohen's kappa coefficient of concordance (κ). RESULTS: House dust mites (HDM) were the main allergens involved in sensitisation, followed by furry animals, pollens, storage mites (SM), moulds and cockroaches. CS was very good between D. pteronyssinus and D. farinae (κ=0.81), and good between Dermatophagoides and Euroglyphus (κ=0.71), and decreased markedly to poor (κ<0.20) between HDM and SM or cockroaches. CS among SM and cockroaches was moderate to fair (κ=0.21-0.44). CS was good between shrimp and tropomyosin (κ=0.62), but null between shrimp-tropomyosin and HDM (κ=0.01-0.02), and poor to fair between shrimp-tropomyosin and SM or cockroaches (κ=0.06-0.34). CS between cat and dog was moderate (κ=0.50). CONCLUSIONS: We have shown the usefulness of κ in exploring CS in a population. In our area, with high sensitisation to HDM and other home allergens, CS is limited for most pairs of allergens, pointing to a lower incidence of cross-reactivity than could be expected, especially between HDM and SM or other invertebrates.

Obesogen effects after perinatal exposure of 4,4'-sulfonyldiphenol (Bisphenol S) in C57BL/6 mice.

Bisphenol A were removed from consumer products and replaced by chemical substitutes such as Bisphenol S (BPS). Based on their structural similarity, BPS may be obesogen like Bisphenol A in mice. Our objective was to determine the impact of BPS on lipid homeostasis in C57Bl/6 mice after perinatal and chronic exposure. Pregnant mice were exposed to BPS via the drinking water (0.2; 1.5; 50µg/kg bw/d). Treatment began at gestational day 0 and continued in offspring up to 23-weeks old. Then, offspring mice were fed with a standard or high fat diet. The body weight, food consumption, fat mass and energy expenditure were measured. A lipid load test was performed to check the postprandial triglyceridemia. Plasma parameters and mRNA gene expression in adipose tissues were also analysed. BPS induced overweight in male mice offspring fed with a HFD at the two highest doses. There was no change in food intake and energy expenditure. The overweight was correlated to the fat mass, hyperinsulinemia and hyperleptinemia. The plasma triglyceride clearance was significantly increased with BPS and tyloxapol(®) (triglyceride clearance inhibitor) reversed this phenomenon. BPS induced alteration in mRNA expression of marker genes involved in adipose tissue homeostasis: hormone sensitive lipase, PPARγ, insulin receptor, SOCS3 and adiponectin. This is the first time that BPS is described as obesogenic at low doses and after perinatal and chronic exposure in male mice. BPS potentiated the obesity induced by a HFD by inducing the lipid storage linked to faster lipid plasma clearance.

[Antimicrobial susceptibility of Gram-negative bacilli of community acquired intra-abdominal infections in a hospital at Buenos Aires, Argentina]. / Sensiblidad antimicrobiana de bacilos gramnegativos de infecciones intraabdominales de la comunidad en un hospital de la ciudad de Buenos Aires, Argentina.

OBJECTIVE: Community acquired complicated intra-abdominal infections (cIAI) are a common condition. Few data are available about the level of antimicrobial resistance of Gram-negative bacteria isolated from community acquired cIAIs in Argentina. METHODS: Retrospective-prospective observational study (March 2010 to February 2012). Gram-negative bacteria antimicrobial susceptibility of isolates from community acquired cIAIs were evaluated. RESULTS: During this period, a total of 85 patients were included and 138 pathogens were collected. Male sex: 58%. Median age: 33. Monomicrobial cultures were obtained in 49% of the cases. Ninety (65%) corresponded to Gram-negative organisms, and 48 (38%) to Gram-positive cocci. Gram-negative organisms most frequently observed were: Escherichia coli 76%, Klebsiella pneumoniae 8%, Pseudomonas aeruginosa 7% and Enterobacter spp. 6%. E. coli and K. pneumoniae showed a high percentage of strains resistance to ciprofloxacin of 37% and 29%, respectively. Similarly, resistance to ampicillin/sulbactam was observed in a 16% of the E. coli isolates. The prevalence of multiresistant Gram-negative organisms was 38%. CONCLUSIONS: A high level of resistance to antimicrobials was observed in community acquired cIAIs, mainly to ciprofloxacin and ampicillin/sulbactam two of the most used antimicrobial for empirically treatment of cIAIs in our country. In addition a significant proportion of multiresistant Gram-negative organisms were identified.

Derrame paraneumónico complicado: análisis de 2 cohortes consecutivas tratadas con distinto criterio / Complicated pleural infection: Analysis of 2 consecutive cohorts managed with a different policy

INTRODUCCIÓN: El tratamiento del derrame pleural paraneumónico complicado (DPC) es controvertido. Las principales guías recomiendan el drenaje, pero con el menor nivel de evidencia. Recientes trabajos han observado buenos resultados solo con antibióticos. Hemos comparado retrospectivamente nuestros resultados en 2 cohortes consecutivas de pacientes tratados con distinto criterio: en el grupo 1 (2005-2009, actitud intervencionista) el drenaje se decidía en función de las características del líquido pleural, de acuerdo con las principales guías; en el grupo 2 (2010-2013, actitud conservadora) el drenaje se decidía en función de la evolución clínica del paciente. MÉTODOS: Se revisaron las historias clínicas de los pacientes tratados por DPC entre 2005 y 2013. Las principales variables analizadas fueron la proporción de pacientes drenados y la duración de la estancia hospitalaria. RESULTADOS: Se analizó a 109 pacientes (64 grupo 1 y 45 grupo 2). Se colocó un tubo de drenaje en el 83% de los pacientes del grupo 1 y en el 47% de los del grupo 2 (p < 0,001). La duración media de la estancia hospitalaria fue de 11,4 días en el grupo 1 y 12,3 días en el grupo 2 (p = 0,45). No se observaron otras diferencias destacables. CONCLUSIÓN: Nuestros resultados coinciden con los de otros estudios recientes que han observado una buena evolución en niños tratados solo con antibióticos y cuestionan la necesidad del drenaje en muchos de los niños que presentan un DPC. Son necesarios ensayos clínicos para identificar las circunstancias en las que se puede obtener un beneficio del drenaje en el DPC

INTRODUCTION: The treatment of complicated pleural infection (CPI) is controversial. Clinical guidelines recommend drainage, but with the lowest grade of evidence. Recent reports have observed good outcomes with antibiotics alone. We retrospectively compared the outcomes in two consecutive cohorts treated with different policies: the first treated according to pleural fluid charactersitics (2005-2009, interventional-prone, group 1) and the second according to clinical assessment (2010-2013, conservative-prone, group 2). METHODS: The clinical records of all children treated for CPI in our hospital between 2005 and 2013 were thoroughly reviewed. Primary outcomes were the proportion of children drained and the length of hospital stay (LHS). RESULTS: One hundred and nine patients (64 group 1 and 45 group 2) were analyzed. A chest tube was placed in 83% of patients in group 1 and 47% in group 2 (P<0.001). The mean LHS was 11.4 days for patients in group 1 and 12.3 for patients in group 2 (P=0.45); no differences were observed in other outcomes. CONCLUSION: Our results add to few recent observations reporting good outcomes in many children treated with antibiotics alone and challenge the need to drain most children with CPI. Clinical trials are now needed to identify when a drainage procedure would be useful

[Complicated pleural infection: Analysis of 2 consecutive cohorts managed with a different policy]. / Derrame paraneumónico complicado: análisis de 2 cohortes consecutivas tratadas con distinto criterio.

INTRODUCTION: The treatment of complicated pleural infection (CPI) is controversial. Clinical guidelines recommend drainage, but with the lowest grade of evidence. Recent reports have observed good outcomes with antibiotics alone. We retrospectively compared the outcomes in two consecutive cohorts treated with different policies: the first treated according to pleural fluid charactersitics (2005-2009, interventional-prone, group 1) and the second according to clinical assessment (2010-2013, conservative-prone, group 2). METHODS: The clinical records of all children treated for CPI in our hospital between 2005 and 2013 were thoroughly reviewed. Primary outcomes were the proportion of children drained and the length of hospital stay (LHS). RESULTS: One hundred and nine patients (64 group 1 and 45 group 2) were analyzed. A chest tube was placed in 83% of patients in group 1 and 47% in group 2 (P<0.001). The mean LHS was 11.4 days for patients in group 1 and 12.3 for patients in group 2 (P=0.45); no differences were observed in other outcomes. CONCLUSION: Our results add to few recent observations reporting good outcomes in many children treated with antibiotics alone and challenge the need to drain most children with CPI. Clinical trials are now needed to identify when a drainage procedure would be useful.

Potential of mesenchymal stem cell in stabilization of abdominal aortic aneurysm sac.

BACKGROUND: In their origin, abdominal aortic aneurysms (AAAs) are related to an inflammatory reaction within the aortic wall, which can lead to weakness and degeneration of this structure. One of the most widely accepted treatment modalities for AAAs is the placement of stent grafts. Nevertheless, in some patients blood re-enters the aneurysm sac, creating so-called leaks, which constitute a renewed risk of rupture and death.This study explores the possibility of filling aneurysm sacs treated by endovascular aneurysm repair with adipose tissue-derived mesenchymal stem cells (ASCs) in a porcine model. METHODS: We developed a porcine model using 22 animals by creating an artificial AAA made with a Dacron patch. AAAs were then treated with a coated stent that isolated the aneurysm sac, after which we introduced allogeneic ASC into the sac. Animals were followed-up for up to 3 mo. The experiment consisted of the aforementioned surgical procedure performed first, followed by computed tomography and echo-Doppler imaging during the follow-up, and finally, after sacrificing the animals, histologic analysis of tissue samples from the site of cell implantation by a blinded observer and the detection of implanted cells by immunofluorescence detection of the Y chromosome. RESULTS: Our findings demonstrate the survival of ASCs over the 3 mo after implantation and histologic changes associated with this treatment. Treated animals had less acute and chronic inflammation throughout the study period, and we observed increasing fibrosis of the aneurysm sac, no accumulation of calcium, and a regeneration of elastic fibers in the artery. CONCLUSIONS: The combination of endovascular aneurysm repair and cell therapy on AAAs has promising results for the stabilization of the sac, resulting in the generation of living tissue that can secure the stent graft and even showing some signs of wall regeneration. The therapeutic value of such cell-based therapy will require further investigation.

Use of platelet-rich plasma in the healing of chronic ulcers of the lower extremity.

INTRODUCTION AND OBJECTIVES: Platelet-rich plasma (PRP) is used as an adjuvant in the treatment of chronic ulcers of the lower extremity and has shown particularly promising results in the case of neuropathic ulcers. There has been less research, however, into its use in venous and hypertensive ulcers. Our aim was to assess the safety and feasibility of using PRP in the treatment of chronic ulcers of the lower extremity and to evaluate its potential benefits in directed healing. MATERIAL AND METHODS: We prospectively selected 11 patients with nonischemic ulcers of the lower extremity that had been present for at least 6 weeks. PRP was injected subcutaneously into the perilesional tissue and applied topically in 4 sessions held at 1-week intervals. We assessed quality of life (SF-12 questionnaire), pain (visual analog scale), and the circumference of the ulcer before and after treatment. RESULTS: There was a predominance of women (8/11, 73%), and venous ulcers (7/11, 64%) were more common than hypertensive ulcers (4/11, 36%). The median age of the patients was 79 years and the median time since onset of the ulcer was 17 months (range, 6-108 months). We observed a significant reduction in pain (P<.05) and a significant improvement in the physical and mental components of the SF-12 (P<.05). The mean reduction in ulcer size was 60%, and complete healing was achieved in 5 cases. No adverse effects were observed. CONCLUSION: The local application of PRP is a valuable and practical procedure that promotes the healing of chronic ulcers of the lower extremity; it can improve patient quality of life and is particularly effective in local pain relief.

Asociación entre la exposición a paracetamol y el asma: estado de la cuestión y recomendaciones prácticas / Association between paracetamol exposure and asthma: update and practice guidelines

La prevalencia del asma ha aumentado en las últimas décadas, especialmente en los países desarrollados, por motivos no bien esclarecidos. En los últimos años se ha observado una asociación entre el uso de paracetamol en distintas etapas de la vida, incluyendo la gestación y la infancia, y la prevalencia de asma. El carácter observacional de los estudios publicados no permite establecer una relación causal. Sería necesario realizar ensayos clínicos para comprobar la naturaleza de la asociación, que podría deberse a la presencia de diversos factores de confusión. Las sociedades pediátricas españolas firmantes de este artículo consideran que los datos disponibles hasta la fecha no son suficientes para desaconsejar el uso de paracetamol durante la gestación ni en niños asmáticos o con riesgo de asma (AU)

Asthma prevalence has increased over the last few decades, especially in developed countries, and possibly due to different reasons. An association between paracetamol use or exposure at different periods of life, including gestation and childhood, and asthma prevalence has been observed in the last few years. Causality can not be established from observational reports, due to the arguable presence of many confounding factors and biases. Randomised trials are needed to elucidate the nature of this association. The Spanish Paediatric societies subscribing to this paper consider that current evidence is insufficient to discourage the use of paracetamol during gestation or in children with or at risk of asthma (AU)

Asthma and paracetamol: Could we really know what happens between them?

An association between paracetamol use or exposure in different times of life, including gestation and childhood, and asthma has been observed in recent years. Causality cannot be established from observational studies because of the arguable presence of many confounding factors and biases. Randomised trials are needed to disclose the nature of the association, but are difficult to carry out because of ethic, economic and logistical issues as large patient samples should be involved for a long time in such studies. Pragmatic trials may be the best option to shed some light on this issue. Questions regarding the problems and difficulties of conducting such trials and the way to overcome them are discussed (AU)

[Association between paracetamol exposure and asthma: update and practice guidelines]. / Asociación entre la exposición a paracetamol y el asma: estado de la cuestión y recomendaciones prácticas.

Asthma prevalence has increased over the last few decades, especially in developed countries, and possibly due to different reasons. An association between paracetamol use or exposure at different periods of life, including gestation and childhood, and asthma prevalence has been observed in the last few years. Causality can not be established from observational reports, due to the arguable presence of many confounding factors and biases. Randomised trials are needed to elucidate the nature of this association. The Spanish Paediatric societies subscribing to this paper consider that current evidence is insufficient to discourage the use of paracetamol during gestation or in children with or at risk of asthma.

Asthma and paracetamol: could we really know what happens between them?

An association between paracetamol use or exposure in different times of life, including gestation and childhood, and asthma has been observed in recent years. Causality cannot be established from observational studies because of the arguable presence of many confounding factors and biases. Randomised trials are needed to disclose the nature of the association, but are difficult to carry out because of ethic, economic and logistical issues as large patient samples should be involved for a long time in such studies. Pragmatic trials may be the best option to shed some light on this issue. Questions regarding the problems and difficulties of conducting such trials and the way to overcome them are discussed.

Serie de casos. Experiencia de un único centro en el tratamiento de fístulas aortoentéricas / A case series. Experience of a single centre in the treatment of aortoenteric fistulas

Objetivo: Analizar nuestra experiencia y resultados obtenidos en una patología infrecuente, compleja y grave como la fístula aortoentérica (FAE). Material y métodos: La patología aórtica previa y su tratamiento fueron: 4 síndromes de Leriche y 2 aneurismas de aorta y un aneurisma roto tratados con bypass aortobifemoral y dos endovascular aneurysms repair (EVAR). Otros datos recogidos fueron: factores de riesgo cardiovascular, patología y cirugía abdominal previa, la localización de FAE secundaria, periodo de tiempo hasta la FAE, evolución y recidivas. Nueve pacientes (7 hombres y 2 mujeres) con fístula secundaria aortoentérica tratados durante el periodo 2000-2010 se agruparon en función de la estabilidad hemodinámica: 3 hombres estables, 4 hombres y 2 mujeres inestables. Resultados: Las FAE secundarias aparecieron tras una media de tiempo de 85,8 meses (mediana: 104; rango: 5-204). Cuatro se trataron con bypass extra-anatómico, 3 inestables. Tres pacientes con reparación in situ, 2 inestables. Dos de forma endovascular, uno inestable. Hubo una muerte intra-quirófano, inestable, y durante los primeros 30 días fallecieron otros 4 pacientes, 3 inestables y uno estable. Los 4 pacientes que sobrevivieron sufrieron una recidiva de la FAE tras tres meses de media (intervalo: 2-5); solo dos se trataron, uno con endoprótesis y otro con bypass axilobifemoral. Conclusiones: La FAE secundaria es una complicación grave, rara y compleja, con una alta morbilidad y mortalidad. No existe un tratamiento estándar, aunque es fundamental el tratamiento urgente de la hemorragia, incluyendo la terapia endovascular, con o sin una nueva intervención para el tratamiento definitivo(AU()

Objective: To analyse our experience and results of a rare, complex and serious disease, aortoenteric fistula (AEF). Material and methods: Nine patients (seven males and two females) with secondary aortoenteric fistula treated during the period 2000-2010, were grouped according to hemodynamic stability: stable three males. Four males and two females were unstable. Previous aortic pathology and its treatment were: four Leriche syndrome, two aortic aneurysms and a ruptured aortic aneurysm treated by aortobifemoral bypass and two EVAR (endovascular aneurysms repair). Other data collected: cardiovascular risk factors, previous abdominal pathology and its surgery, the location of the secondary AEF, period of time until the appearance of AEF, evolution and recurrence. Results: The secondary AEF appeared after a mean time of 85.8 months (median 104, range 5-204). Four were treated with extra-anatomical bypass, and three were unstable. Three patients with in situ repair, two unstable. Two with endograft, one unstable. There was one death during surgery, unstable, and during the first 30 days, four patients died, 3 unstable, one stable. The four surviving patients had a recurrence of the AEF after a mean of three months (range, 2-5), only two were treated, one patient with endograft and one with axilobifemoral bypass. Conclusions: Secondary AEF is a serious, rare and complex complication, with high morbidity and mortality. No standard treatment exists, although the urgent treatment of bleeding is essential, including endovascular therapy, with or without a new intervention for definitive treatment(AU)

Intubación de secuencia rápida en paciente que presenta un gran cuchillo de cocina clavado en el cuello por intento autolítico / Rapid intubation in patient with a big kitchen knife nailed in the neck cause a suicide purpose

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Are we prescribing too much or too little immunotherapy for children with allergic rhinitis?

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Short protocol for the study of paediatric patients with suspected betalactam antibiotic hypersensitivity and low risk criteria

Background: Suspected hypersensitivity to betalactam antibiotics in children is a frequent cause of consultation that proves costly in terms of resource utilization – particularly time. Such hypersensitivity is, however, rarely confirmed. Methods: A short protocol was introduced in which patients at low risk (single episode with mild, non-immediate skin symptoms after the administration of a betalactam antibiotic via the oral route) were subjected to oral provocation (following the obtaining of informed consent) without any other prior evaluations. Patients failing to meet these requirements were studied according to the protocol of the EAACI (specific IgE and skin testing prior to oral provocation). Results: A total of 78 patients (56 at low risk) were studied. Five patients had tolerated the medication after the episode, while another six patients failed to complete the study. The study with oral provocation was completed in the remaining 67 patients: according to the protocol of the EAACI in 17 patients, and using the short protocol in 50 patients. Only one patient showed a positive provocation test, of a delayed and mild nature. Conclusions: Direct oral provocation in low risk patients has been shown to be effective and safe in discarding hypersensitivity to betalactam antibiotics in the majority of the patients studied (AU)