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1.
Anaesth Crit Care Pain Med ; 36(2): 135-145, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28096063

RESUMEN

Chest trauma remains an issue for health services for both severe and apparently mild trauma management. Severe chest trauma is associated with high mortality and is considered liable for 25% of mortality in multiple traumas. Moreover, mild trauma is also associated with significant morbidity especially in patients with preexisting conditions. Thus, whatever the severity, a fast-acting strategy must be organized. At this time, there are no guidelines available from scientific societies. These expert recommendations aim to establish guidelines for chest trauma management in both prehospital an in hospital settings, for the first 48hours. The "Société française d'anesthésie réanimation" and the "Société française de médecine d'urgence" worked together on the 7 following questions: (1) criteria defining severity and for appropriate hospital referral; (2) diagnosis strategy in both pre- and in-hospital settings; (3) indications and guidelines for ventilatory support; (4) management of analgesia; (5) indications and guidelines for chest tube placement; (6) surgical and endovascular repair indications in blunt chest trauma; (7) definition, medical and surgical specificity of penetrating chest trauma. For each question, prespecified "crucial" (and sometimes also "important") outcomes were identified by the panel of experts because it mattered for patients. We rated evidence across studies for these specific clinical outcomes. After a systematic Grade® approach, we defined 60 recommendations. Each recommendation has been evaluated by all the experts according to the DELPHI method.


Asunto(s)
Manejo de Caso , Guías de Práctica Clínica como Asunto , Traumatismos Torácicos/terapia , Cuidados Críticos , Guías como Asunto , Humanos
2.
JAMA Cardiol ; 1(5): 557-65, 2016 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-27433815

RESUMEN

IMPORTANCE: Experimental evidence suggests that cyclosporine prevents postcardiac arrest syndrome by attenuating the systemic ischemia reperfusion response. OBJECTIVE: To determine whether early administration of cyclosporine at the time of resuscitation in patients with out-of-hospital cardiac arrest (OHCA) would prevent multiple organ failure. DESIGN, SETTING, AND PARTICIPANTS: A multicenter, single-blind, randomized clinical trial was conducted from June 22, 2010, to March 13, 2013 (Cyclosporine A in Out-of-Hospital Cardiac Arrest Resuscitation [CYRUS]). Sixteen intensive care units in 7 university-affiliated hospitals and 9 general hospitals in France participated. A total of 6758 patients who experienced nonshockable OHCA (ie, asystole or pulseless electrical activity) were assessed for eligibility. Analyses were performed according to the intention-to-treat analysis. INTERVENTIONS: Patients received an intravenous bolus injection of cyclosporine, 2.5 mg/kg, at the onset of advanced cardiovascular life support (cyclosporine group) or no additional intervention (control group). MAIN OUTCOMES AND MEASURES: The primary end point was the Sequential Organ Failure Assessment (SOFA) score, assessed 24 hours after hospital admission, which ranges from 0 to 24 (with higher scores indicating more severe organ failure). Secondary end points included survival at 24 hours, hospital discharge, and favorable neurologic outcome at discharge. RESULTS: Of the 6758 patients screened, 794 were included in intention-to-treat analysis (cyclosporine, 400; control, 394). The median (interquartile range [IQR]) ages were 63.0 (54.0-71.8) years for the cyclosporine group and 66.0 (57.0-74.0) years for the control group. The cohorts included 293 men (73.3%) in the treatment group and 288 men (73.1%) in the control group. At 24 hours after hospital admission, the SOFA score was not significantly different between the cyclosporine (median, 10.0; IQR, 7.0-13.0) and the control (median, 11.0; IQR, 7.0-15.0) groups. Survival was not significantly different between the 98 (24.5%) cyclosporine vs 101 (25.6%) control patients at hospital admission (adjusted odds ratio [aOR], 0.94; 95% CI, 0.66-1.34), at 24 hours for 67 (16.8%) vs 62 (15.7%) patients (aOR, 1.08; 95% CI, 0.71-1.63), and at hospital discharge for 10 (2.5%) vs 5 (1.3%) patients (aOR, 2.00; 95% CI, 0.61-6.52). Favorable neurologic outcome at discharge was comparable between the cyclosporine and control groups: 7 (1.8%) vs 5 (1.3%) patients (aOR, 1.39; 95% CI, 0.39-4.91). CONCLUSION AND RELEVANCE: In patients presenting with nonshockable cardiac rhythm after OHCA, cyclosporine does not prevent early multiple organ failure. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT01595958; EudraCT Identifier: 2009-015725-37.


Asunto(s)
Ciclosporina/uso terapéutico , Inhibidores Enzimáticos/uso terapéutico , Insuficiencia Multiorgánica/prevención & control , Paro Cardíaco Extrahospitalario/complicaciones , Anciano , Reanimación Cardiopulmonar , Femenino , Francia , Humanos , Masculino , Persona de Mediana Edad , Insuficiencia Multiorgánica/etiología , Método Simple Ciego
4.
Presse Med ; 44(5): 502-8, 2015 May.
Artículo en Francés | MEDLINE | ID: mdl-25744949

RESUMEN

The management of stroke is now recognized as a real medical emergency as well as myocardial infarct, because we have now an efficacious treatment in cerebral infarct, intravenous fibrinolysis that decreases the risk of death and motor and cognitive handicap. The second characteristic is its very important frequency, and its risk that increases in young people. This medical emergency enforces the care systems because it needs a speedy network for the patient, his family and the care professionals, useful for intravenous fibrinolysis before 3 hours after 80 years and before 4 hours and a half before 80 years. It is necessary to start treatment as soon as possible because it is most effective when given early. The consequences to avoid the lost of chance, need several actions: inform the public about the interest of FAST score to identify the first signs (facial palsy, palsy of arm, aphasia and time of stroke onset); call 15; translate the patient towards an appropriate medical center; use tele-stroke when the hospital has no neurologist; and manage the patient in a stroke unit, to introduce in a second time secondary prevention thanks to therapeutical education. Therefore, stroke care is a real multiprofessional emergency around the neurologist.


Asunto(s)
Accidente Cerebrovascular/terapia , Adulto , Anciano , Anciano de 80 o más Años , Urgencias Médicas , Servicios Médicos de Urgencia/organización & administración , Historia del Siglo XXI , Hospitalización , Humanos , Persona de Mediana Edad , Accidente Cerebrovascular/epidemiología , Terapia Trombolítica/normas , Terapia Trombolítica/tendencias
5.
Am J Emerg Med ; 33(3): 478.e3-4, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25440002

RESUMEN

Spontaneous spleen rupture with no recent report of trauma is an extremely rare and life-threatening cause of intraperitoneal hemorrhage.We present the first case of an atraumatic pathological splenic rupture following alteplase thrombolysis for ischemic stroke.


Asunto(s)
Fibrinolíticos/efectos adversos , Rotura del Bazo/inducido químicamente , Accidente Cerebrovascular/tratamiento farmacológico , Terapia Trombolítica/efectos adversos , Activador de Tejido Plasminógeno/efectos adversos , Humanos , Masculino , Persona de Mediana Edad , Rotura Espontánea , Trombectomía
6.
Eur J Emerg Med ; 20(3): 197-204, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-22644283

RESUMEN

OBJECTIVE: The aim of this study was to analyze the impact of diverting off-hour calls to Emergency Medical Dispatch Centers (EMDC) on time delays and revascularization procedures for patients with ST-segment elevation myocardial infarction (STEMI) in a French region. METHODS: A total of 3376 consecutive patients admitted for acute STEMI were included from the RICO survey (a French regional survey for acute myocardial infarction). Patients were retrospectively classified into two groups: before (2001-2004) and after EMDC (2005-2008) implementation and followed up for mortality as primary outcomes. In addition, we examined the impact of the diversion on the delay to definitive care. RESULTS: During the study, 1781 (53%) patients were evaluated before and 1595 (47%) after the EMDC implementation. Access to healthcare facilities was similar for the two groups. The rate of off-hour calls remained stable over time. The median delay from first medical intervention to hospital admission decreased from 75 to 60 min. The off-hour median interval from door to primary percutaneous coronary intervention dropped from 152 to 98 min. The multivariate analyses showed that EMDC implementing reduced preadmission delays even when adjusting for potential confounders. Moreover, EMDC implementing was associated with a fall in 30-day mortality by 60% in patients admitted during off hours and undergoing primary percutaneous coronary intervention (10 vs. 4%). CONCLUSION: In a real world setting, improving the quality of prehospital organization was effective not only on reducing delays but also on improving access to revascularization. Our results showed the beneficial impact of EMDC implementing on management of STEMI.


Asunto(s)
Atención Posterior/organización & administración , Sistemas de Comunicación entre Servicios de Urgencia/organización & administración , Médicos Generales , Infarto del Miocardio/terapia , Intervención Coronaria Percutánea , Humanos , Análisis Multivariante , Infarto del Miocardio/mortalidad , Teléfono
9.
Arch Cardiovasc Dis ; 105(12): 649-55, 2012 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23199620

RESUMEN

BACKGROUND: Myocardial infarction with ST-segment elevation (STEMI) is a medical emergency requiring specific management, with the main aim of achieving reperfusion as quickly as possible. Guidelines from medical societies have defined optimal management, with proven efficacy on morbi-mortality. AIMS: Our study aimed to evaluate trends in practices between 2002 and 2010 in the emergency management of STEMI in a single French department, namely Cote d'Or. METHODS: All patients admitted with a first STEMI to one of the six participating coronary care units (private or public) in Cote d'Or since January 2001 were included in a prospective registry (obseRvatoire des Infarctus de Côte d'Or [RICO]). Based on these data, we analysed trends in prehospital times between 2002 and 2010. RESULTS: A total of 4114 patients were included in this analysis. Between 2002 and 2010, there was an increase in the proportion of patients who contacted the emergency services (by dialling 15) as first medical contact; however, the time from onset of symptoms to first medical contact remained stable over the study period. Overall, there was little change in prehospital management times but we noted a slight reduction in time to reperfusion. CONCLUSION: Despite some improvement in prehospital management practices between 2002 and 2010 in Cote d'Or, there is still significant room for improvement to achieve earlier reperfusion in STEMI patients.


Asunto(s)
Servicios Médicos de Urgencia/tendencias , Infarto del Miocardio/terapia , Femenino , Francia , Humanos , Masculino , Persona de Mediana Edad , Infarto del Miocardio/fisiopatología , Estudios Prospectivos , Sistema de Registros , Factores de Tiempo
10.
Crit Care ; 16(5): R170, 2012 Sep 28.
Artículo en Inglés | MEDLINE | ID: mdl-23131068

RESUMEN

INTRODUCTION: The benefits of transporting severely injured patients by helicopter remain controversial. This study aimed to analyze the impact on mortality of helicopter compared to ground transport directly from the scene to a University hospital trauma center. METHODS: The French Intensive Care Research for Severe Trauma cohort study enrolled 2,703 patients with severe blunt trauma requiring admission to University hospital intensive care units within 72 hours. Pre-hospital and hospital clinical data, including the mode of transport, (helicopter (HMICU) versus ground (GMICU), both with medical teams), were recorded. The analysis was restricted to patients admitted directly from the scene to a University hospital trauma center. The main endpoint was mortality until ICU discharge. RESULTS: Of the 1,958 patients analyzed, 74% were transported by GMICU, 26% by HMICU. Median injury severity score (ISS) was 26 (interquartile range (IQR) 19 to 34) for HMICU patients and 25 (IQR 18 to 34) for GMICU patients. Compared to GMICU, HMICU patients had a higher median time frame before hospital admission and were more intensively treated in the pre-hospital phase. Crude mortality until hospital discharge was the same regardless of pre-hospital mode of transport. After adjustment for initial status, the risk of death was significantly lower (odds ratio (OR): 0.68, 95% confidence interval (CI) 0.47 to 0.98, P = 0.035) for HMICU compared with GMICU. This result did not change after further adjustment for ISS and overall surgical procedures. CONCLUSIONS: This study suggests a beneficial impact of helicopter transport on mortality in severe blunt trauma. Whether this association could be due to better management in the pre-hospital phase needs to be more thoroughly assessed.


Asunto(s)
Ambulancias Aéreas , Hospitales Universitarios/tendencias , Puntaje de Gravedad del Traumatismo , Alta del Paciente/tendencias , Centros Traumatológicos/tendencias , Heridas no Penetrantes/mortalidad , Adulto , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Mortalidad/tendencias , Estudios Prospectivos , Transporte de Pacientes/tendencias , Heridas no Penetrantes/terapia , Adulto Joven
11.
EuroIntervention ; 8 Suppl P: P77-9, 2012 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-22917796

RESUMEN

France was chosen to be one of the six first pilot countries of the "Stent for Life" European initiative. First, a prospective registry was set up in five representative French regions, including all admissions within the first 48 hours of ST-elevated acute cardiac syndrome between 1st and 30th November 2010. The second step was to improve results. The main objective was to encourage members of the public experiencing chest pain to call immediately the SAMU's direct line (phone number "15"). Another action was to organise medical meetings in order to improve the management of these patients. Letters were also sent to general physicians to alert them to the issue and to the Stent for Life project. The third step consisted of creating a new registry, in November 2011, to assess the impact of the above actions on an area basis. It has resulted in streamlining the networks and bringing the rate of non-reperfusion down below the 10% threshold. Much remains to be done to improve public awareness of life-saving actions.


Asunto(s)
Enfermedad de la Arteria Coronaria/terapia , Accesibilidad a los Servicios de Salud/organización & administración , Infarto del Miocardio/terapia , Intervención Coronaria Percutánea/instrumentación , Stents , Conducta Cooperativa , Enfermedad de la Arteria Coronaria/complicaciones , Enfermedad de la Arteria Coronaria/diagnóstico , Enfermedad de la Arteria Coronaria/mortalidad , Medicina Basada en la Evidencia , Francia , Conocimientos, Actitudes y Práctica en Salud , Promoción de la Salud , Humanos , Modelos Organizacionales , Infarto del Miocardio/diagnóstico , Infarto del Miocardio/etiología , Infarto del Miocardio/mortalidad , Educación del Paciente como Asunto , Intervención Coronaria Percutánea/efectos adversos , Intervención Coronaria Percutánea/mortalidad , Estudios Prospectivos , Sistema de Registros , Terapia Trombolítica , Factores de Tiempo , Resultado del Tratamiento
12.
Crit Care ; 16(3): R101, 2012 Jun 11.
Artículo en Inglés | MEDLINE | ID: mdl-22687140

RESUMEN

INTRODUCTION: The mortality benefit of whole-body computed tomography (CT) in early trauma management remains controversial and poorly understood. The objective of this study was to assess the impact of whole-body CT compared with selective CT on mortality and management of patients with severe blunt trauma. METHODS: The FIRST (French Intensive care Recorded in Severe Trauma) study is a multicenter cohort study on consecutive patients with severe blunt trauma requiring admission to intensive care units from university hospital trauma centers within the first 72 hours. Initial data were combined to construct a propensity score to receive whole-body CT and selective CT used in multivariable logistic regression models, and to calculate the probability of survival according to the Trauma and Injury Severity Score (TRISS) for 1,950 patients. The main endpoint was 30-day mortality. RESULTS: In total, 1,696 patients out of 1,950 (87%) were given whole-body CT. The crude 30-day mortality rates were 16% among whole-body CT patients and 22% among selective CT patients (p = 0.02). A significant reduction in the mortality risk was observed among whole-body CT patients whatever the adjustment method (OR = 0.58, 95% CI: 0.34-0.99 after adjustment for baseline characteristics and post-CT treatment). Compared to the TRISS predicted survival, survival significantly improved for whole-body CT patients but not for selective CT patients. The pattern of early surgical and medical procedures significantly differed between the two groups. CONCLUSIONS: Diagnostic whole-body CT was associated with a significant reduction in 30-day mortality among patients with severe blunt trauma. Its use may be a global indicator of better management.


Asunto(s)
Manejo de la Enfermedad , Mortalidad/tendencias , Tomografía Computarizada por Rayos X/mortalidad , Índices de Gravedad del Trauma , Heridas no Penetrantes/diagnóstico por imagen , Heridas no Penetrantes/mortalidad , Adulto , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Heridas no Penetrantes/cirugía , Adulto Joven
13.
Am J Emerg Med ; 30(7): 1032-41, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22035584

RESUMEN

PURPOSE: We tested the hypothesis that the motor component of the Glasgow Coma Scale (GCS) conveys most of the predictive information of triage scores (Triage Revised Trauma Score [T-RTS] and the Mechanism, GCS, Age, arterial Pressure score [MGAP]) in trauma patients. METHOD: We conducted a multicenter prospective observational study and evaluated 1690 trauma patients in 14 centers. We compared the GCS, T-RTS, MGAP, and Trauma Related Injury Severity Score (reference standard) using the full GCS or its motor component only using logistic regression model, area under the receiver operating characteristic curve, and reclassification technique. RESULTS: Although some changes were noted for the GCS itself and the Trauma Related Injury Severity Score, no significant change was observed using the motor component only for T-RTS and MGAP when considering (1) the odds ratio of variables included in the logistic model as well as their discrimination and calibration characteristics, (2) the area under the receiver operating characteristic curve (0.827 ± 0.014 vs 0.831 ± 0.014, P = .31 and 0.863 ± 0.011 vs 0.859 ± 0.012, P = .23, respectively), and (3) the reclassification technique. Although the mortality rate remained less than the predetermined threshold of 5% in the low-risk stratum, it slightly increased for MGAP (from 1.9% to 3.9%, P = .048). CONCLUSION: The use of the motor component only of the GCS did not change the global performance of triage scores in trauma patients. However, because a subtle increase in mortality rate was observed in the low-risk stratum for MGAP, replacing the GCS by its motor component may not be recommended in every situation.


Asunto(s)
Escala de Coma de Glasgow , Heridas y Lesiones/mortalidad , Adulto , Servicios Médicos de Urgencia/estadística & datos numéricos , Femenino , Escala de Coma de Glasgow/estadística & datos numéricos , Humanos , Puntaje de Gravedad del Traumatismo , Modelos Logísticos , Masculino , Movimiento , Estudios Prospectivos , Curva ROC , Triaje , Heridas y Lesiones/clasificación , Heridas y Lesiones/diagnóstico
14.
Intensive Care Med ; 38(2): 279-85, 2012 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-22124771

RESUMEN

PURPOSE: Sodium citrate has antibacterial and anticoagulant properties that are confined to the catheter when used as a catheter lock. Studies of its use as a catheter lock in chronic hemodialysis patients suggest it may be efficacious in preventing infection and thrombotic complications. We compared sodium citrate with saline catheter locks for non-tunneled hemodialysis central venous catheters in critically ill adult patients. Primary endpoint was catheter life span without complication. METHODS: This was a randomized, controlled, open-label trial involving intensive care patients with acute renal failure requiring hemodialysis. Events were defined as catheter-related bloodstream infection and catheter malfunction. RESULTS: Seventy-eight patients were included. Median catheter life span without complication was 6 days (saline group) versus 12 days (citrate group) [hazard ratio (HR) 2.12 (95% CI 1.32-3.4), p = 0.0019]. There was a significantly higher rate of catheter malfunction in the saline group compared with in the citrate group (127 catheter events/1,000 catheter-days, saline group vs. 26 events/1,000 catheter-days, citrate group, p < 0.00001). There was no significant difference in incidence of infections between groups. We observed a significantly longer time to occurrence of infection in the citrate group (20 days vs. 14 days, HR 2.8, 95% CI 1.04-7.6, p = 0.04). By multivariate analysis, age and citrate group were the only independent factors that influenced catheter life span. CONCLUSIONS: This study shows for the first time that citrate lock reduced catheter complications and increased catheter life span as compared to saline lock in critically ill adults requiring hemodialysis.


Asunto(s)
Lesión Renal Aguda/terapia , Cateterismo Venoso Central/instrumentación , Citratos/administración & dosificación , Diálisis Renal/instrumentación , Cloruro de Sodio/administración & dosificación , Anciano , Enfermedad Crítica , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Citrato de Sodio
15.
Crit Care ; 15(1): R34, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21251331

RESUMEN

INTRODUCTION: Severe blunt trauma is a leading cause of premature death and handicap. However, the benefit for the patient of pre-hospital management by emergency physicians remains controversial because it may delay admission to hospital. This study aimed to compare the impact of medical pre-hospital management performed by SMUR (Service Mobile d'Urgences et de Réanimation) with non-medical pre-hospital management provided by fire brigades (non-SMUR) on 30-day mortality. METHODS: The FIRST (French Intensive care Recorded in Severe Trauma) study is a multicenter cohort study on consecutive patients with severe blunt trauma requiring admission to university hospital intensive care units within the first 72 hours. Initial clinical status, pre-hospital life-sustaining treatments and Injury Severity Scores (ISS) were recorded. The main endpoint was 30-day mortality. RESULTS: Among 2,703 patients, 2,513 received medical pre-hospital management from SMUR, and 190 received basic pre-hospital management provided by fire brigades. SMUR patients presented a poorer initial clinical status and higher ISS and were admitted to hospital after a longer delay than non-SMUR patients. The crude 30-day mortality rate was comparable for SMUR and non-SMUR patients (17% and 15% respectively; P = 0.61). After adjustment for initial clinical status and ISS, SMUR care significantly reduced the risk of 30-day mortality (odds ratio (OR): 0.55, 95% CI: 0.32 to 0.94, P = 0.03). Further adjustments for the delay to hospital admission only marginally affected these results. CONCLUSIONS: This study suggests that SMUR management is associated with a significant reduction in 30-day mortality. The role of careful medical assessment and intensive pre-hospital life-sustaining treatments needs to be assessed in further studies.


Asunto(s)
Servicios Médicos de Urgencia , Bomberos , Mortalidad Hospitalaria , Puntaje de Gravedad del Traumatismo , Unidades de Cuidados Intensivos/estadística & datos numéricos , Admisión del Paciente/estadística & datos numéricos , Heridas y Lesiones/terapia , Adolescente , Adulto , Anciano , Francia/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Factores de Tiempo , Resultado del Tratamiento , Heridas y Lesiones/mortalidad , Adulto Joven
19.
Anesth Analg ; 111(4): 922-4, 2010 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-20802052

RESUMEN

BACKGROUND: The Manujet™ and the ENK Oxygen Flow Modulator™ (ENK) deliver oxygen during transtracheal oxygenation. We sought to describe the ventilation characteristics of these 2 devices. METHODS: The study was conducted in an artificial lung model consisting of a 15-cm ringed tube, simulating the trachea, connected via a flow analyzer and an artificial lung. A 15-gauge transtracheal wire reinforced catheter was used for transtracheal oxygenation. The ENK and Manujet were studied for 3 minutes at respiratory rates of 0, 4, and 12 breaths/min, with and without the artificial lung, in a totally and a partially occluded airway. Statistical analysis was performed using analysis of variance followed by a Fisher exact test; P < 0.05 was considered significant. RESULTS: Gas flow and tidal volume were 3 times greater with the Manujet than the ENK (approximately 37 vs 14 L · min(-1) and 700 vs 250 mL, respectively) and were not dependent on the respiratory rate. In the absence of ventilation, the ENK delivered a 0.6 ± 0.1 L · min(-1) constant gas flow. In the totally occluded airway, lung pressures increased to 136 cm H(2)O after 3 insufflations with the Manujet, whereas the ENK, which has a pressure release vent, generated acceptable pressures at a low respiratory rate (4 breaths/min) (peak pressure at 27.7 ± 0.7 and end-expiratory pressure at 18.8 ± 3.8 cm H(2)O). When used at a respiratory rate of 12 breaths/min, the ENK generated higher pressures (peak pressure at 95.9 ± 21.2 and end-expiratory pressure at 51.4 ± 21.4 cm H(2)O). In the partially occluded airway, lung pressures were significantly greater with the Manujet compared with the ENK, and pressures increased with the respiratory rate with both devices. Finally, the gas flow and tidal volume generated by the Manujet varied proportionally with the driving pressure. DISCUSSION: This study confirms the absolute necessity of allowing gas exhalation between 2 insufflations and maintaining low respiratory rates during transtracheal oxygenation. In the case of total airway obstruction, the ENK may be less deleterious because it has a pressure release vent. Using a Manujet at lower driving pressures may decrease the risk of barotrauma and allow the safe use of higher respiratory rates.


Asunto(s)
Terapia por Inhalación de Oxígeno/instrumentación , Terapia por Inhalación de Oxígeno/métodos , Tráquea , Ventiladores Mecánicos , Cateterismo Periférico/instrumentación , Cateterismo Periférico/métodos , Intercambio Gaseoso Pulmonar/fisiología , Volumen de Ventilación Pulmonar/fisiología
20.
Med Educ ; 44(7): 716-22, 2010 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-20636591

RESUMEN

OBJECTIVES: What is the best way to train medical students early so that they acquire basic skills in cardiopulmonary resuscitation as effectively as possible? Studies have shown the benefits of high-fidelity patient simulators, but have also demonstrated their limits. New computer screen-based multimedia simulators have fewer constraints than high-fidelity patient simulators. In this area, as yet, there has been no research on the effectiveness of transfer of learning from a computer screen-based simulator to more realistic situations such as those encountered with high-fidelity patient simulators. METHODS: We tested the benefits of learning cardiac arrest procedures using a multimedia computer screen-based simulator in 28 Year 2 medical students. Just before the end of the traditional resuscitation course, we compared two groups. An experiment group (EG) was first asked to learn to perform the appropriate procedures in a cardiac arrest scenario (CA1) in the computer screen-based learning environment and was then tested on a high-fidelity patient simulator in another cardiac arrest simulation (CA2). While the EG was learning to perform CA1 procedures in the computer screen-based learning environment, a control group (CG) actively continued to learn cardiac arrest procedures using practical exercises in a traditional class environment. Both groups were given the same amount of practice, exercises and trials. The CG was then also tested on the high-fidelity patient simulator for CA2, after which it was asked to perform CA1 using the computer screen-based simulator. Performances with both simulators were scored on a precise 23-point scale. RESULTS: On the test on a high-fidelity patient simulator, the EG trained with a multimedia computer screen-based simulator performed significantly better than the CG trained with traditional exercises and practice (16.21 versus 11.13 of 23 possible points, respectively; p<0.001). CONCLUSIONS: Computer screen-based simulation appears to be effective in preparing learners to use high-fidelity patient simulators, which present simulations that are closer to real-life situations.


Asunto(s)
Reanimación Cardiopulmonar/educación , Simulación por Computador/normas , Instrucción por Computador , Educación de Pregrado en Medicina , Competencia Clínica , Instrucción por Computador/métodos , Instrucción por Computador/normas , Educación de Pregrado en Medicina/métodos , Educación de Pregrado en Medicina/normas , Humanos , Simulación de Paciente
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