RESUMEN
OBJECTIVE: There is a paucity of data on the incidence and severity of tram tracks related cycling injuries. The aim of this study is to get insight into the incidence, severity and characteristics of tram tracks related cycling injuries, potentially defining significant 'hotspots' in the Ghent city area. METHODS: A one-year, multicenter, prospective, observational study was conducted. Patients presenting to the emergency departments of all 4 Ghent hospitals with tram tracks related cycling injury, were included. Data on patient demographics, circumstances of the accident and type of injury were collected. RESULTS: 149 patients were included, with a median age of 31 years. 42 patients had fractures, 39 patients required wound sutures, 79 and 49 patients suffered from bruising and abrasions respectively. Only 5 patients required admission. No patients died or suffered life-threatening injuries. Women (65.1%) presented more frequently than men (34.9%). Forty-tree percent of all accidents happened in autumn (p < 0.001). Accidents happened more frequently in rainy conditions (p < 0.001). Mean number of days off work was 2.7 days, significantly increasing to 6.56 days when sustaining a fracture or dislocation (p = 0.02). CONCLUSION: Tram tracks are potentially dangerous and may lead to clinically important injuries and significant number of days off work.
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Accidentes de Tránsito/estadística & datos numéricos , Ciclismo/lesiones , Seguridad/estadística & datos numéricos , Heridas y Lesiones/epidemiología , Adolescente , Adulto , Bélgica , Ciudades , Servicio de Urgencia en Hospital/organización & administración , Femenino , Fracturas Óseas/epidemiología , Hospitalización , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Vehículos a Motor/estadística & datos numéricos , Estudios Prospectivos , Adulto JovenRESUMEN
BACKGROUND AND OBJECTIVES: Teicoplanin is a highly protein-bound antibiotic, increasingly used to treat serious Gram-positive infections in critically ill children. Maturational and pathophysiological intensive care unit-related changes often lead to altered pharmacokinetics. In this study, the objectives were to develop a pediatric population-pharmacokinetic model of unbound and total teicoplanin concentrations, to investigate the impact of plasma albumin levels and renal function on teicoplanin pharmacokinetics, and to evaluate the efficacy of the current weight-based dosing regimen. METHODS: An observational pharmacokinetic study was performed and blood samples were collected for quantification of unbound and total concentrations of teicoplanin after the first dose and in assumed steady-state conditions. A population-pharmacokinetic analysis was conducted using a standard sequential approach and Monte Carlo simulations were performed for a probability of target attainment analysis using previously published pharmacokinetic-pharmacodynamic targets. RESULTS: A two-compartment model with allometric scaling of pharmacokinetic parameters and non-linear plasma protein binding best described the data. Neither the inclusion of albumin nor the renal function significantly improved the model and no other covariates were supported for inclusion in the final model. The probability of target attainment analysis showed that the standard dosing regimen does not satisfactory attain the majority of the proposed targets. CONCLUSIONS: We successfully characterized the pharmacokinetics of unbound and total teicoplanin in critically ill pediatric patients. The highly variable unbound fraction of teicoplanin could not be predicted using albumin levels, which may support the use of therapeutic drug monitoring of unbound concentrations. Poor target attainment was shown for the most commonly used dosing regimen, regardless of the pharmacokinetic-pharmacodynamic target evaluated.
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Enfermedad Crítica , Teicoplanina , Antibacterianos/uso terapéutico , Niño , Humanos , Pruebas de Sensibilidad Microbiana , Método de Montecarlo , Teicoplanina/farmacocinéticaRESUMEN
OBJECTIVES: Analgesics are one of the most frequently used medicines. Self-medication and misuse have been described in the literature. The purpose of this study was to document analgesic (mis)use in a population seeking emergency dental treatment. MATERIAL AND METHODS: Patients consulting a dental emergency service were randomly asked to complete a questionnaire on analgesic use, knowledge and information on the analgesics and on their pain history. A photobook was used as an aid to identify products used. Descriptive statistics were combined with chi-square and Mann-Whitney U testing. RESULTS: Ninety-eight patients were included. Acetaminophen (69.4%) and ibuprofen (65.3%) were the most frequently used products. Nearly half of the subjects (43.9%) combined at least two analgesics. Although 42.9% of subjects were aware of the maximum daily dose, 62.2% of the subjects exceeded this limit, specifically 76.6% of subjects using ibuprofen and 32.4% of subjects using acetaminophen overdosing. Females overdosed significantly more than males. Ingestion on medical advice did not affect the overdose rates significantly. No significant relation was found between the absence of knowledge on the maximum daily dose and actual overdosing. No higher pain reduction was found in patients overdosing analgesics. The average number of days patients experienced pain before consulting the emergency unit was 12. A significant relation was found between the lag time and overdosing. CONCLUSIONS: A large portion of the patients overdosed analgesics. Even prior medical advice did not reduce significantly overdose rates. CLINICAL RELEVANCE: Dentists treating emergency cases clearly need to be aware of the high risk and high rates of overdosing analgesics in their patients.
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Analgésicos/administración & dosificación , Analgésicos/envenenamiento , Manejo del Dolor/métodos , Odontalgia/tratamiento farmacológico , Enfermedad Aguda , Adolescente , Adulto , Anciano , Servicio Odontológico Hospitalario , Sobredosis de Droga/epidemiología , Servicio de Urgencia en Hospital , Femenino , Humanos , Masculino , Persona de Mediana Edad , Dimensión del Dolor , Automedicación , Factores Sexuales , Encuestas y CuestionariosRESUMEN
Defibrillation within the first minutes after sudden cardiac arrest can save many quality-adjusted life years. Yet, despite enormous investments, 'healthcare' is still unable to provide this for the majority of patients. Emergency Medical Services often have a too long mean response time and many issues surround Public Access Defibrillation programs. In this article we argument that AED-equipped drones could be the 'magic bullet'. They are easily deployed and fast, and have a relatively low operational cost. As such they could rapidly bring an AED next to the victim, irrespective of most geographical circumstances, give visual feedback and situational awareness to the EMS dispatcher and thus assist a bystander to provide better CPR. Although there are many real-life barriers to actual deployment, we argument these might all get solved once we have solved the described technological issues.
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Aeronaves , Servicios Médicos de Urgencia/métodos , Paro Cardíaco Extrahospitalario/terapia , Ambulancias , Reanimación Cardiopulmonar/tendencias , Desfibriladores/provisión & distribución , Humanos , Factores de TiempoRESUMEN
BACKGROUND: Following a train derailment, several tons of acrylonitrile (ACN) exploded, inflamed and part of the ACN ended up in the sewage system of the village of Wetteren. More than 2000 residents living in the close vicinity of the accident and along the sewage system were evacuated. A human biomonitoring study of the adduct N-2-cyanoethylvaline (CEV) was carried out days 14-21 after the accident. OBJECTIVES: (1) To describe the short-term health effects that were reported by the evacuated residents following the train accident, and (2) to explore the association between the CEV concentrations, extrapolated at the time of the accident, and the self-reported short-term health effects. METHODS: Short-term health effects were reported in a questionnaire (n=191). An omnibus test of independence was used to investigate the association between the CEV concentrations and the symptoms. Dose-response relationships were quantified by Generalized Additive Models (GAMs). RESULTS: The most frequently reported symptoms were local symptoms of irritation. In non-smokers, dose-dependency was observed between the CEV levels and the self-reporting of irritation (p=0.007) and nausea (p=0.007). Almost all non-smokers with CEV concentrations above 100pmol/g globin reported irritation symptoms. Both absence and presence of symptoms was reported by non-smokers with CEV concentrations below the reference value and up to 10 times the reference value. Residents who visited the emergency services reported more symptoms. This trend was seen for the whole range of CEV concentrations, and thus independently of the dose. DISCUSSION AND CONCLUSION: The present study is one of the first to relate exposure levels to a chemical released during a chemical incident to short-term (self-reported) health effects. A dose-response relation was observed between the CEV concentrations and the reporting of short-term health effects in the non-smokers. Overall, the value of self-reported symptoms to assess exposure showed to be limited. The results of this study confirm that a critical view should be taken when considering self-reported health complaints and that ideally biomarkers are monitored to allow an objective assessment of exposure.
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Acrilonitrilo/toxicidad , Liberación de Peligros Químicos , Irritantes/toxicidad , Vías Férreas , Adulto , Bélgica , Cotinina/orina , Relación Dosis-Respuesta a Droga , Monitoreo del Ambiente , Femenino , Cefalea/inducido químicamente , Humanos , Masculino , Persona de Mediana Edad , Náusea/inducido químicamente , Autoinforme , Fumar/sangre , Fumar/orina , Encuestas y Cuestionarios , Temblor/inducido químicamente , Valina/análogos & derivados , Valina/sangreRESUMEN
Toxic exposure to caustics and respiratory irritants. Toxic emergencies for which the ENT physician is con- sulted mainly involve toxic exposure of the upper airway and digestive tract to caustics and respiratory irritants. The ENT physician may, however, also be involved as a first responder in the case of poisoned patients. This article therefore aims to provide a comprehensive general approach to patients with suspected poisoning and to present a more elaborate discussion on the diagnosis and management of patients following exposure to caustics and respiratory irritants. This survey, however, does not intend to be a substitute for the need for consultation with an emergency physician and a clinical toxicologist qualified in the diagnosis and treatment of poisoned patients.
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Quemaduras Químicas/terapia , Cáusticos/toxicidad , Tracto Gastrointestinal/lesiones , Irritantes/toxicidad , Sistema Respiratorio/lesiones , Quemaduras Químicas/diagnóstico , Quemaduras Químicas/etiología , HumanosRESUMEN
Alcohol abuse is a major health concern. The aim of this retrospective study was to analyse the alcohol-related emergency department (ED) admissions among adolescents in all hospitals of distinct areas during a 1-year period. In each hospital, all ED patients with a blood alcohol concentration (BAC) of at least 0.5âg/l were surveyed in a standardised way. Of the 3918 included patients, only 146 (3.7%) were < 18 âyears. The male-to-female ratio was 1.5:1. There was a strong preponderance of weekend and night time admissions. Most of the patients were transported by ambulance (77% of 138 patients with information on this item). The main reason for ED admittance was depressed level of consciousness (64%), trauma (12%), vomiting and/or abdominal pain (12%), agitation or aggression (4%), syncope (4%) and psychological problems (4%). The context of the alcohol intoxication was related to some kind of festivity in 85%, mental problems in 14% and chronic abuse in 1%. Median BAC values (and range) were 2.08âg/l (0.73-3.70âg/l) for boys and 1.51âg/l (0.73-2.90âg/l) for girls. Most patients (87%) could be discharged home within 24 âhours. Our study confirms that problematic alcohol use leading to ED admissions starts in adolescence. Although the numbers of cases below 18âyears are low when compared to adults, the phenomenon is alarming as it is associated with substantial health problems. Therefore, Belgium urgently needs a global national alcohol plan, with youngsters being one of the target groups.
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Intoxicación Alcohólica/epidemiología , Nivel de Alcohol en Sangre , Servicio de Urgencia en Hospital , Admisión del Paciente/estadística & datos numéricos , Adolescente , Bélgica/epidemiología , Femenino , Humanos , Masculino , Estudios RetrospectivosRESUMEN
BACKGROUND: On Saturday May 4, 2013, a train transporting chemicals derailed in the village of Wetteren (Belgium) and caused a leak of acrylonitrile (ACN). OBJECTIVES: To assess the human exposure to acrylonitrile in the local population with the highest suspected exposure. METHODS: Between May 18-25, 242 residents participated in the study. N-2-cyanoethylvaline (CEV), a biomarker that is highly specific for ACN exposure, was measured in the blood. To account for potential influence by smoking, cotinine was determined in the urine. Participants also filled in a short questionnaire. RESULTS: In the evacuated zone, 37.3% of the non-smokers and 40.0% of the smokers had CEV concentrations above the reference values of 10 and 200 pmol/g globin, respectively, at the time of the train accident. Spatial mapping of the CEV concentrations depending on the residential address showed a distribution pattern following the sewage system. DISCUSSION AND CONCLUSION: The train derailment resulted in a highly atypical sequence-of-events. In addition to exposure in the direct vicinity of the site of the train derailment, exposure also occurred via the sewage system, into which acrylonitrile had entered shortly after the accident.
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Acrilonitrilo/sangre , Liberación de Peligros Químicos , Exposición a Riesgos Ambientales/análisis , Monitoreo del Ambiente/métodos , Valina/análogos & derivados , Acrilonitrilo/envenenamiento , Adulto , Bélgica , Exposición a Riesgos Ambientales/efectos adversos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Vías Férreas , Aguas del Alcantarillado/análisis , Encuestas y Cuestionarios , Valina/sangreRESUMEN
BACKGROUND: On May 4, 2013, a train transporting chemicals derailed in Wetteren, Belgium. Several tanks loaded with acrylonitrile (ACN) exploded, resulting in a fire and a leakage of ACN. OBJECTIVES: To determine exposure to ACN and to assess discriminating factors for ACN exposure in the emergency responders involved in the on-site management of the train accident. METHODS: The study population consisted of 841 emergency responders. Between May 21 and June 28, they gave blood for the determination of N-2-cyanoethylvaline (CEV) hemoglobin adducts and urine for the measurement of cotinine. They also filled in a short questionnaire. RESULTS: 163 (26%) non-smokers and 55 (27%) smokers showed CEV concentrations above the reference values of 10 and 200 pmol/g globin, respectively. The 95th percentile in the non-smokers was 73 pmol/g globin and the maximum was 452 pmol/g globin. ACN exposure among the non-smokers was predicted by (1) the distance to the accident, (2) the duration of exposure, and (3) the occupational function. DISCUSSION AND CONCLUSION: Emergency responders involved in the on-site management of the train accident were clearly exposed to ACN from the accident. However, the extent of exposure remained relatively moderate with CEV concentrations staying within the ranges described in literature as background for a smoking population. Moreover, the exposure was less pronounced in the emergency responders as compared to that in the local population.
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Acrilonitrilo/sangre , Acrilonitrilo/orina , Liberación de Peligros Químicos , Socorristas , Monitoreo del Ambiente/métodos , Exposición Profesional/análisis , Acrilonitrilo/envenenamiento , Adulto , Bélgica , Femenino , Humanos , Masculino , Persona de Mediana Edad , Exposición Profesional/efectos adversos , Vías Férreas , Análisis de Regresión , Encuestas y Cuestionarios , Valina/análogos & derivados , Valina/sangre , Valina/orinaRESUMEN
We present the case of a 27-year-old immunocompetent man who progressively developed a generalized lymphadenopathy and B symptoms. Results of Epstein-Barr virus (EBV) serology were suggestive for a past infection, but the EBV viral load in whole blood was high. Also, core needle biopsy of the largest lymph node showed an image which could fit an EBV-driven reactive lymphoproliferation. Despite the absence of an immune disorder, all medical evidence points to an EBV-driven lymphoproliferative proces. In immunocompetent patients, it seems extremely uncommon to detect a high EBV viral load in the absence of serological evidence of an acute EBV infection or reactivation. We reviewed literature on this topic and on the selection of the appropriate sample type for EBV PCR, as this is known to be a critical point. Serological testing for the diagnosis of EBV infection is the gold standard in immunocompetent patients. Measuring EBV viral load is only recommended when dealing with immunocompromised patients. Although extremely rare, this case report shows that there is a place for EBV PCR in certain situations in immunocompetent patients. Besides, there is still no consensus regarding the specimen of choice for the determination of the EBV viral load. The preferred specimen type seems to depend on the patient's underlying condition.
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ADN Viral/sangre , Infecciones por Virus de Epstein-Barr/diagnóstico , Herpesvirus Humano 4 , Reacción en Cadena de la Polimerasa , Carga Viral , Adulto , Humanos , Masculino , Pruebas SerológicasRESUMEN
INTRODUCTION: In many countries out of hours (OOH) care is offered by different health care services. General practitioners (GP) tend to offer services in competition with emergency departments (ED). Patients behaviour depends on a number of factors. In this study, we highlight the knowledge and ideas of patients concerning the co-payment system. METHODS: We used a mixed methods design, combining quantitative and qualitative research. During two weekends in January 2005, all patients using the ED or the GP OOH service, were invited for an interview with a structured questionnaire. A stratified random sample of patients participated in a semi-structured interview. Both methods add complementary data to answer the research questions. RESULTS: Most mentioned reasons for seeking help at the ED are: accessibility (15.0%), proximity (6.4%) and competence of the staff (5.6%). Reasons for choosing the GP are: GP is easy to find, minor medical problem or anxiety and confidence in the GP. The odds of not knowing the co-payment system are significantly higher in patients visiting the ED (OR 1.783; 95% CI: 1.493-2.129). Mostly GP users recognize the problem of ED overuse. They suggested especially to provide clear information about the tasks of the different services and about the payment system, to reduce ED overuse. CONCLUSION AND DISCUSSION: When intending to shift from ED to GP services for minor medical problems, aiming at just one measure is no option. Information campaigns aiming to address the entire population, can clarify the role of each player in out-of-hours care.
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Atención Posterior/estadística & datos numéricos , Servicios Médicos de Urgencia/estadística & datos numéricos , Conocimientos, Actitudes y Práctica en Salud , Atención Primaria de Salud/estadística & datos numéricos , Adolescente , Adulto , Atención Posterior/economía , Anciano , Anciano de 80 o más Años , Bélgica , Niño , Preescolar , Conducta de Elección , Servicios Médicos de Urgencia/economía , Femenino , Medicina General/estadística & datos numéricos , Accesibilidad a los Servicios de Salud , Mal Uso de los Servicios de Salud/economía , Mal Uso de los Servicios de Salud/estadística & datos numéricos , Humanos , Lactante , Recién Nacido , Masculino , Persona de Mediana Edad , Atención Primaria de Salud/economía , Investigación Cualitativa , Mecanismo de Reembolso/economía , Encuestas y Cuestionarios , Adulto JovenRESUMEN
PURPOSE: The aim of this study was to prospectively evaluate drug interactions and adverse drug reactions (ADRs) in the older patients admitted to the emergency department (ED) and to characterize risk factors. METHODS: In 80 patients aged 65 years and older medication history and ED drug administration were analysed. Medical records were analysed for ADRs by an expert panel which also evaluated their avoidability and causality. An interaction program was used to search for potential drug interactions followed by assessment for clinical significance. Data were analysed using a logistic regression model. The significance level was set at alpha=0.05. RESULTS: Eighty seven ADRs were identified in 37 patients; 18 were the result of an interaction (15 patients). Causality was assessed as definite (n=11), probable (n=62) and possible (n=24). The reason for admission was definitely and probably related to an ADR in 6 and 18 patients respectively. Only 17 (20%) of the ADRs were assessed as unavoidable, while 23 (26%) and 47 (54%) were classified as definitely and possibly avoidable, respectively. ADRs were related with female gender (p=0.023) and number of drugs (p=0.004), but not with high age (p=0.151). Clinically relevant interactions were related with older age (p=0.032) and number of drugs (p=0.003), but not with gender (p=0.380). None of the interactions with ED initiated medications were considered unjustified. CONCLUSIONS: ADRs frequently occur in the older patients admitted to the ED and are an important cause of hospital admissions with a substantial contribution of adverse drug interactions.
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Interacciones Farmacológicas , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/epidemiología , Anciano , Anciano de 80 o más Años , Bélgica/epidemiología , Servicio de Urgencia en Hospital/estadística & datos numéricos , Femenino , Hospitalización/estadística & datos numéricos , Humanos , Modelos Logísticos , Masculino , Polifarmacia , Estudios Prospectivos , Factores de Riesgo , Distribución por SexoRESUMEN
Primary granulocytic sarcoma is an uncommon entity that rarely presents in the breast. It is frequently misdiagnosed as carcinoma or lymphoma and a broad panel of immunohistochemical markers including epithelial and haematological markers are essential for an accurate diagnosis. We reviewed all the cases of granulocytic sarcoma reported in the English literature since 1970 and present a new case of granulocytic sarcoma of the breast. Systemic chemotherapy for acute myeloid leukemia (AML) appears to be superior to surgery or radiotherapy. Granulocytic sarcoma should be in the pathologic differential diagnosis of a breast mass.
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Neoplasias de la Mama/diagnóstico , Sarcoma Mieloide/diagnóstico , Biopsia con Aguja Fina , Neoplasias de la Mama/terapia , Femenino , Humanos , Inmunohistoquímica , Persona de Mediana Edad , Invasividad Neoplásica , Sarcoma Mieloide/terapiaRESUMEN
Renal AA amyloidosis is a severe consequence of chronic inflammatory diseases such as familial Mediterranean fever (FMF). FMF is caused by mutations in the MEFV gene, resulting in defective control of granulocyte-mediated inflammation. Interferon-alpha is known to induce MEFV expression in monocytes and granulocytes in vitro. We present the first case of colchicine-resistant FMF in which a durable disease remission and regression of renal amyloidosis was induced by chronic treatment with pegylated interferon-alpha.
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Amiloidosis/tratamiento farmacológico , Fiebre Mediterránea Familiar/tratamiento farmacológico , Factores Inmunológicos/uso terapéutico , Interferón-alfa/uso terapéutico , Enfermedades Renales/tratamiento farmacológico , Polietilenglicoles/uso terapéutico , Amiloidosis/etiología , Amiloidosis/patología , Biopsia , Colchicina/uso terapéutico , Proteínas del Citoesqueleto/genética , Resistencia a Medicamentos , Fiebre Mediterránea Familiar/complicaciones , Fiebre Mediterránea Familiar/genética , Femenino , Humanos , Interferón alfa-2 , Enfermedades Renales/etiología , Enfermedades Renales/patología , Persona de Mediana Edad , Mutación , Pirina , Proteínas Recombinantes , Resultado del TratamientoRESUMEN
Healthcare-associated pneumonia (HCAP) is considered to represent a category of disease distinct from community-acquired pneumonia (CAP). We describe the incidence and characteristics of HCAP compared with CAP in patients hospitalised through the emergency department (ED). Pneumonia diagnosed at the ED of Ghent University Hospital from 1 November 2006 to 31 October 2007 was retrospectively categorised as CAP or HCAP according to the definition of the American Thoracic Society/Infectious Diseases Society of America. We categorised 287 episodes of pneumonia, diagnosed in 269 patients, as CAP [159 (55%)] or HCAP [128 (45%)]. Patients with HCAP were older [75 years (range: 64-83) vs 68 (41-78); P < 0.001], had more comorbidity, and had more severe pneumonia [CURB-65: 2 (1-3) vs 1 (0-2); P < 0.001] in comparison to patients with CAP. Patients with HCAP had more frequently an unfavourable clinical course (27% vs 15%; P < 0.01) and a longer hospital stay (12 days vs 9 days; P<0.001) compared with patients with CAP. In multivariate regression analysis, nursing home residence (odds ratio: 2.96; 95% confidence interval: 1.12-7.84; P = 0.03) but not HCAP was an independent predictor for in-hospital mortality. In conclusion, a high percentage (45%) of patients hospitalised with pneumonia through the ED was classified as HCAP. Classification as HCAP was associated with an unfavourable clinical course. Nursing home residence was an independent predictor for increased mortality.
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Infección Hospitalaria , Neumonía/mortalidad , Adulto , Anciano , Anciano de 80 o más Años , Bélgica/epidemiología , Comorbilidad , Femenino , Mortalidad Hospitalaria , Hospitales Universitarios , Humanos , Tiempo de Internación , Masculino , Persona de Mediana Edad , Neumonía/fisiopatología , Pronóstico , Estudios Retrospectivos , Medición de Riesgo , Factores de Riesgo , Índice de Severidad de la EnfermedadRESUMEN
INTRODUCTION: Improving pain management in the ED might be attained by adequate teaching of medical students. We assessed the skills in pain treatment of ED physicians who teach the students. METHODS: All physicians working in an ED who provide elective training to undergraduate medical students from the Ghent University were asked to complete a questionnaire consisting of vignette patient cases concerning acute pain management of abdominal colic pain, and non-traumatic abdominal pain. RESULTS: Thirty two physicians completed the cases. In the renal colic case 91% of the respondents proposed a NSAID as first line treatment. Butylhyoscine was still suggested by 18%. After initial failure of analgesia 31% administered a strong opioid. In biliary colic pain NSAIDs and butylhyoscine were proposed as first line analgesics by 59% and 31% respectively. In second line, butylhyoscine would be given by 22%. The patient case with right fossa abdominal pain would initially be treated with acetaminophen by 81%. Thirteen % of the respondents would not give further analgesia if the first line treatment was insufficient. CONCLUSION: Our results indicate that adherence by teachers to evidence based guidelines of acute pain management is insufficient. Therefore improving knowledge and skills in pain management of the teachers should receive more attention.
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Servicio de Urgencia en Hospital , Adhesión a Directriz , Manejo del Dolor , Pautas de la Práctica en Medicina/estadística & datos numéricos , Bélgica , Hospitales de Enseñanza , Humanos , Guías de Práctica Clínica como Asunto , Encuestas y CuestionariosRESUMEN
BACKGROUND: The ECG analysis algorithm of automated external defibrillators (AEDs) shows reduced sensitivity and specificity in the presence of external artifacts. Therefore, ECG analyses are preceded by voice prompts. We investigated if advanced life support (ALS) providers follow these prompts, and the consequences if they do not. METHODS: In a two-tiered EMS system all 510 ECG analyses from 135 resuscitation attempts with a Laerdal FR2 AED (applied by emergency medical technicians [EMTs] and subsequently used by ALS providers) were prospectively evaluated. The ALS data were compared with data before arrival of ALS providers (EMT data) using Mc Nemar test. RESULTS: In the presence of ALS providers, 286 ECG rhythm analyses were performed. In the 96 analyses with shockable rhythms, artifacts were detected in 35 (36%), leading to a wrongful no shock decision in 19 (20%). Corresponding EMT data were 67 analyses with shockable rhythms, with artifacts in 18 (27%; p<0.001) but a wrongful no shock decision in only 3 (4%; p<0.001). ALS providers also failed to deliver the AED shock in 7 of the 77 analyses with an appropriate shock decision (9%). This was never found in the EMT data. In the 190 analyses of a non-shockable rhythm in the presence of ALS providers, artifacts were detected in 120 (63%) leading to one spurious shock (0.5%). Corresponding EMT data were 157 analyses, with artifacts in 87 (55%; p=0.20) but no spurious shocks. CONCLUSIONS: External artifacts were frequently found, sometimes leading to important errors. Consequently, more training is needed, especially for ALS providers.
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Apoyo Vital Cardíaco Avanzado , Desfibriladores , Auxiliares de Urgencia , Artefactos , Electrocardiografía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Sensibilidad y EspecificidadRESUMEN
INTRODUCTION: Good quality basic life support (BLS) results in better survival. BLS is a core competence of nurses but despite regular refresher training, the quality of BLS is often poor and the reasons for this are not well known. We therefore investigated the relation between BLS quality and some of its potential determinants. MATERIALS AND METHODS: During a BLS refresher course, 296 nurses from non-critical care wards completed a questionnaire including demographic data and a "self-confidence" score. Subsequently, they performed a BLS test on a manikin connected to a PC using Skillreporting System software (Laerdal, Norway). The following variables were recorded: number of ventilations/min, tidal volume, number of compressions/min, compression rate, compression depth, "good ventilation" (n >or=4 min(-1) and tidal volume=700-1000 ml) and "good compression" (n >or=40 min(-1) and rate=80-120 min(-1) and compression depth=40-50mm). To detect independent determinants of BLS quality, associations between the demographic data and the objective variables of BLS quality were examined. RESULTS: Forty-three percent of the nurses rated their confidence as good or very good. Male gender was associated with good compression (P<0.001). Greater self-confidence was also associated with good ventilation (P<0.03) and with good compression (P<0.001). A short time since last BLS training was associated with a higher number of ventilations/min (P=0.01). A short time since last experience of CPR was associated with a higher number of compressions (P<0.01). CONCLUSIONS: Male gender, greater self-confidence, recent BLS training and recent CPR were associated with better quality of BLS.