[Trends among medical students towards general practice or specialization]. / Tendencia en el estudiante de medicina a ejercer como médico general o especialista.

BACKGROUND: A 60/40 ratio has been estimated as a country's ideal proportion between general practitioners and specialists. In Chile this proportion was 36/ 64 in 2004, exactly the opposite of the ideal. Trends towards specialization or general practice among medical students have not been thoughtfully studied. AIM: To assess trends among medical students towards becoming general practitioners or specialists, exploring associated factors. MATERIAL AND METHODS: Descriptive survey of 822 first to seventh year medical students at the University of Chile, School of Medicine. Desired activity to pursue (general practice or specialization) after graduation and general orientations within clinical practice were explored. RESULTS: Fifty three percent of students desired to enter a specialization program. Only 20% would work as a general practitioner (27% were still indecisive). Furthermore, a trend in early years of medical training towards an integral medicine is gradually reversed within later years. Seventh year students give significantly more importance to specialization than to integral medicine (p <0.01). Ten percent of this opinion change is related to the emphasis given to specialized medicine in the teaching environment. CONCLUSIONS: Most students prefer to enter a specialization program immediately after finishing medical school. Moreover, there is a social trend, at least within the teacher-attending environment, promoting not only the desire to specialize, but a pro-specialist culture.

Tendencia en el estudiante de medicina a ejercer como médico general o especialista / Trends among medical students towards general practice or specialization

Background: A 60/40 ratio has been estimated as a country's ideal proportion between general practitioners and specialists. In Chile this proportion was 36/ 64 in 2004, exactly the opposite of the ideal. Trends towards specialization or general practice among medical students have not been thoughtfully studied. Aim: To assess trends among medical students towards becoming general practitioners or specialists, exploring associated factors. Material and methods: Descriptive survey of 822 first to seventh year medical students at the University of Chile, School of Medicine. Desired activity to pursue (general practice or specialization) after graduation and general orientations within clinical practice were explored. Results: Fifty three percent of students desired to enter a specialization program. Only 20 percent would work as a general practitioner (27 percent were still indecisive). Furthermore, a trend in early years of medical training towards an integral medicine is gradually reversed within later years. Seventh year students give significantly more importance to specialization than to integral medicine (p <0.01). Ten percent of this opinion change is related to the emphasis given to specialized medicine in the teaching environment. Conclusions: Most students prefer to enter a specialization program immediately after finishing medical school. Moreover, there is a social trend, at least within the teacher-attending environment, promoting not only the desire to specialize, but a pro-specialist culture.

Formación valórica del estudiante de medicina: de lo integral a lo especializado / Formation valorica of medicine student: of the integral to the specialist

The dehumanization of medicine is a well-known phenomenon, negatively evaluated by patients, physicians and community as a whole. Health authorities and Medical Education Center have responded by declaring the chilean Ministry's 'New Attention Model' and by implementing ethical-humanistic within the medical formation curriculum. The impact of these initiatives is informally considered as insufficient. Part of the problem consists in the difficulty of objectively evaluate the same aspects that are tried to be modified. We present the psychological model of the 'Social Representations', as a solution, that allows a valid and objective method for values and other non-cognitive aspect analysis. In this paper, we implement this methodology by evaluating values and non-cognitive aspects in the Medical student throughout his formation. (Third to Seventh grade Universidad de Chile's Medical student). We demonstrated an undesired outcome in medical formation, reaffirming the 'dehumanization' in students: as time passes by, interest or and integral care is lost, while specialty-focused care receives a higher priority. This process reaches a critical impact during clerkship, when students are deeper exposed to clinical practice. We comment associated factors and propose a value management intervention model, as a development respond to the present situation.

La deshumanización de la medicina es un fenómeno conocido, evaluado negativamente por pacientes, médicos y toda la comunidad. Como respuesta, autoridades en salud y centros de educación médica intentan promover un cambio cultural, a través del 'nuevo modelo de atención' del Ministerio de Salud e implementando asignaturas ético-humanistas dentro de la formación médica. El impacto de estas iniciativas es considerado informalmente como insuficiente. Parte del problema consiste en la dificultad de evaluar objetivamente los aspectos que se intentan modificar. Presentamos como solución el modelo psicológico de las representaciones sociales, que permiten analizar aspectos valóricos y no-cognitivos con gran validez y objetividad. En el presente trabajo, utilizamos dicha metodología al evaluar aspectos valóricos del estudiante de medicina a lo largo de su formación. (Alumnos de tercero a séptimo año de la Universidad de Chile, Área Occidente). Evidenciamos un efecto contrario al perseguido por la universidad reafirmando la 'deshumanización' los estudiantes: a medida que el estudiante avanza en la carrera, pierde interés por la medicina de orientación integral y cobra prioridad la atención fraccionada en especialidades. Esto se acentúa durante el período de internado, al entrar el estudiante en contacto directo con la práctica médica. Comentamos factores asociados y proponemos un modelo de intervención y gestión en valores, como respuesta a esta situación.

A double-blind, multicentered study comparing the accuracy of diagnostic markers to predict short- and long-term clinical events and their utility in patients presenting with chest pain.

BACKGROUND: Millions of patients present annually with chest pain, but only 10% have myocardial infarction (MI). We recently reported comparative sensitivity and specificity of available markers in the diagnosis of MI; however, optimum interpretation of marker results requires prognostic follow-up data. HYPOTHESIS: The study was undertaken to study the accuracy of CK-MB subforms, troponin I and T, myoglobin, and CK-MB in predicting clinical events at 30 days and 6 months. METHODS: In all, 955 consecutive patients with chest pain were enrolled in a prospective, multicenter, double-blind study to test the prognostic accuracy of these markers. RESULTS: Myocardial infarction was diagnosed in 119 by CK-MB mass criteria and unstable angina (UA) in 203 patients by clinical criteria. Follow-up at 30 days and 6 months was available in 824 and 724 patients, respectively, with mortalities of 2.8 and 4.14%, respectively. Cumulative 6-month mortality was 5.6% in MI, 4.4% in UA, and 3.0% in others. Revascularization was reported in 9.3% of patients by 6 months. A positive test on each of the markers except myoglobin was predictive of revascularization. The composite endpoint of death or revascularization occurred in 107 patients by 6 months and a positive result on each of the markers was predictive of this composite endpoint (p < 0.05). The relative risk of death or revascularization for patients who did not have MI but tested positive on each of the markers was > 1.0 but did not reach statistical significance. CONCLUSIONS: With the possible exception of myoglobin, each of the diagnostic markers displayed similar prognostic performance in patients with chest pain presenting to emergency departments. The most appropriate markers to triage patients with chest pain, which has both adequate early diagnostic sensitivity and prognostic accuracy, are the CK-MB subforms.

Critical care transport.

The transport environment presents challenges not faced in the hospital arena. Both ground and air ambulance transport vehicles are hampered by space limitations, lack of universally available power, and physical forces of no importance in the stationary hospital environment. EMS personnel are typically used in ground and air transports augmented by hospital practitioners on request. The capabilities of EMS workers is limited, and their limits must be considered when any patient transport is conducted. Prior planning and understanding the limitations of the transport arena are the keys to successful transport. The future will likely see improvements in technology and integration of hospital delivery systems and patient management systems, expanding our ability to provide critical care outside the traditional ICU environment.

Automatic external defibrillators: lessons from the past, present and future.

Coronary artery disease remains the leading cause of death in the United States and most developed countries. Many of the victims die from sudden cardiac arrests, resulting from dysrhythmias-most commonly ventricular fibrillation. Since most cardiac arrests occur outside the hospital, implementing emergency services in the field will have a great impact on survival. With the development of the modern automatic external defibrillator (AED), early recognition and correction of these dysrhythmias by lay rescuers can significantly improve outcome from sudden death. This paper reviews the past, present and future development and applications of AEDs.

Management of increased intracranial pressure: a review for clinicians.

Emergency physicians are frequently confronted with head-injured patients, many of whom have intracranial hypertension. Since direct correlations have been reported between increased intracranial pressure (ICP) and adverse outcome, it is important to rapidly identify and treat these patients. Furthermore, since the actual brain damage that occurs at the time of injury cannot be modified, the maximization of neurological recovery depends upon minimizing secondary insults to the brain, most notably preventing hypotension and hypoxemia. Volume resuscitation to maintain an adequate mean arterial pressure, airway control, and sedation and analgesia to prevent surges in ICP remain the cornerstone of early management. These principles and the emergency department management of the head-injured patient are reviewed in this paper.

The ex vivo antimicrobial activity and colonization rate of two antimicrobial-bonded central venous catheters.

OBJECTIVE: Catheter-related sepsis is an important complication associated with the use of central venous catheters. Recent studies have suggested that antimicrobial-bonded catheters may reduce catheter colonization and catheter-related sepsis. The aim of this study was to determine the relationship between the antimicrobial activity and the colonization rate of two commercially available antimicrobial-bonded central venous catheters. DESIGN: Prospective, randomized, controlled, nonblinded study. SETTING: Medical intensive care unit of a university-affiliated teaching hospital. PATIENTS: One hundred twenty consecutive medical intensive care unit patients requiring new central venous catheters (fresh stick). INTERVENTIONS: Patients were randomized to receive a) a Standard Arrow; b) an ARROWgard; or c) a Cook Bio-Guard Spectrum central venous catheter. Central venous catheters were removed when they were no longer required or when catheter-related sepsis was suspected. Under aseptic conditions, the distal 12 cm of the removed catheters were cut into six 2-cm segments. Semiquantitative culture was performed (by roll technique) on the distal segment. Colonization was defined as >15 colony-forming units. Using a modified Kirby-Bauer technique, the zone of inhibition of the remaining five segments was determined against the following organisms: methicillin-resistant Staphylococcus aureus (MRSA), Staphylococcus epidermidis, Enterococcus faecalis, Acinetobacter baumannii, and Candida albicans Catheters that were removed within 24 hrs of insertion were excluded from the analysis. MEASUREMENTS AND MAIN RESULTS: Seven patients were not assessable. The baseline clinical and demographic characteristics were similar among the three groups of patients. Eleven Standard Arrow (28%), seven ARROWgard (19%), and four Bio-Guard (11%) catheters were colonized (p = .05 for Bio-Guard vs. control). Staphylococci were the most common colonizing organisms. Two patients with Standard Arrow catheters (5%) and one patient with an ARROWgard catheter (3%) developed catheter-related sepsis. Antibiotic-coated catheters significantly inhibited the growth of all test organisms except C. albicans (p < or = .05). Zones of inhibition were significantly larger for the Bio-Guard compared with the ARROWgard catheter when tested against MRSA, S. epidermidis, and E. faecalis (p < or = .002). CONCLUSION: The Bio-Guard central venous catheter had greater ex vivo antimicrobial activity against MRSA, S. epidermidis, and E. faecalis compared with the ARROWgard catheter, and this was associated with a significantly lower rate of catheter colonization.