Factores pronósticos de morbimortalidad cardiovascular en pacientes egresados con infarto agudo al miocardio seguidos por un año / Prognostic factors of cardiovascular morbidity and mortality in patients with acute myocardial infarction followed for one year

Acute myocardial infarction is one of the main causes of death in the world, this occurs in the in-hospital period as well as in the follow-up. It has been much studied what occurs in the in-hospital period, but much less what occurs in the follow-up of patients with this pathology. The objective of this study was to follow patients discharged after myocardial infarction for 1 year and analyze predictors of cardiovascular events. 1174 patients were followed for 1 year, of which 17% presented some serious cardiovascular event, associated with the presence of male sex, older age, arterial hypertension, previous history of angina, hospital treatment only pharmacological, inclusion of positive inotropes in the initial treatment and use of calcium channel blockers, factors already shown by international literature but less analyzed in our country, and furthermore, the demonstration that invasive management with coronary angioplasty or bypass surgery are protective factors of the occurrence of events in this period, which reinforces the idea of a more intensive and invasive management in patients with this pathology. (AU)

Caracterización del perfil clínico y funcional de pacientes con lesión medular en rehabilitación intrahospitalaria / Characterization of the clinical profile and function of patients with spinal cord injury in in-hospital rehabilitation

Spinal cord injury (SCI) is a pathology that generates great personal, family, economic and social impact. There are two main etiologies that are traumatic (T-SCI) and non-traumatic (NTSCI). These patients receive their rehabilitation in specialized hospital services in the acute and sub-acute phase. A retrospective, descriptive, observational study was designed, reviewing the clinical records of patients diagnosed with SCI at discharge, hospitalized in the Physical Medicine and Rehabilitation Service of the Clinical Hospital of the University of Chile. The general profile of admission of patients with SCI was a young men with NT- SCI, with higher education, paid work and incomplete injury (ASIA B, C, D). An improvement was observed for all patients for the severity of the injury, neurological level, motor level, sensory level and functionality. This is the first study conducted nationwide that provides epidemiological data and functional evolution of patients with SCI and are comparable to those found in the international literature. (AU)

Perfil clínico funcional de pacientes con artritis reumatoide derivados a Fisiatría en control en Centro Reumatólogico Avanzado (CREA) del Hospital Clínico Universidad de Chile / Functional clinical profile of patients with Rheumatoid arthritis derived to Physiatry in control at Centro Reumatólogico Avanzado (CREA) of Hospital Clínico Universidad de Chile

Rheumatoid arthritis (RA) is a systemic inflammatory disease that primarily affects the joints causing varying degrees of disability. Non-pharmacological management is increasing evidence of its usefulness impacting functionality. Objectives: To characterize the clinical / functional profile of patients with rheumatoid arthritis derived physiatrist assessment in the Clinical Hospital University of Chile. Methods: We reviewed the clinical records of patients with RA derivatives Physical Medicine, extraction demographics, medical history, physical examination and functionality. Statisticians analysis of central tendency, dispersion, absolute and relative frequencies. Results: 85 medical records were analyzed. 88.2% were women with an average age of 54.05 ± 11.42 years. 38.8% have at least one comorbidity. 34.1% of patients takes between 6 and 15 years of disease. The average drug related AR is 5.6 per patient, being more Disease Modifying Antirheumatic Drugs (DMARDs) found. 35.2% presented falls in the past year. Pain is a symptom found in the history and physical examination with a VAE (venous air embolism) 4.4 ± 2.43 at the time of consultation and 6.7 ± 3.3 in crisis. 20% received kinesic therapy and only 7% occupational therapy. 45.3% of patients having a value of HAQ (health assesment questionnaire) who scored as moderate disability, even if their selfperception of independence reaches 65.9%. Conclusion: The analysis allows us to perform a demographic, clinical and functional profile that allows us to guide rehabilitation actions. (AU)

Características de la población y las atenciones de rehabilitación que recibe en un hospital general / Referral to rehabilitation services of patients discharged from a general hospital with a potentially disabling condition

Background Patients discharged from general hospitals with a potentially disabling condition can benefit in their recovery with the aid of physical medicine and rehabilitation services. Aim To determine the proportion of patients discharged from a general hospital with a potentially disabling condition, who were derived to physiatry for rehabilitation. Material and Methods Review of the discharge database of a general hospital, identifying all discharges with a potentially disabling condition, and those who were effectively derived for rehabilitation. Results Only 7% of patients with a potentially disabling condition were effectively evaluated by Physiatry. Among these patients, 20% had neurological diseases and 19% had an amputation. Those attended by physiatry had a higher proportion of multidisciplinary care by the rehabilitation team. Conclusions A low proportion of patients discharged with a potentially disabling conditions are referred for an adequate rehabilitation therapy.

Autoconfianza de los estudiantes de medicina en su interpretación correcta de un electrocardiograma / Self-confidence of medical students in their correct interpretation of an electrocardiogram

Myocardial infarction is a highly prevalent condition. Its early recognition could have a high impact on prognosis. A quick and accurate interpretation of the electrocardiogram (EKG) is crucial to improve the diagnostic and therapeutic processes. Nevertheless, medical literature shows lack of competencies for autonomous and reliable EKG interpretation on both medical students and general practitioners, in many countries. The aim of the present study is to assess the level of self-confidence that medical students from the University of Chile have in their own skills to interpreter EKG rapidly and correctly. With that purpose, an online survey was designed and applied to all medical students from third to 7th year (final). resUlts:From a total of 1.000 surveys sent, only 206 were completely answered and returned. 77.2 percent of these students show very limited self-confidence in their own skills and competences to reliably interpret an EKG without anybody else’s help. On the other hand, only 20.9percent of them declare to have a high level of self-confidence in this area. We did not find statistically significant differences associated with: gender, educational level, previous academic performance, or campus. conclusions: Most of our medical students have a low self-confidence level regarding their own capabilities for correctly and quickly “read” an EKG. These findings suggest the need for redesigning the educational strategies currently being used for this purpose, in the undergraduate Cardiology Program, incorporating new teaching methodologies to achieve the desirable competences needed for correct EKGs’ reading.

Episiotomía y disfunciones del piso pélvico femenino / Episiotomy and floor dysfunctions female pelvic

Pelvic floor dysfunctions are highly prevalent in our population significantly affecting the quality of life of women. Pregnancy and childbirth are well recognized risk factors. It has recently become clear that pelvic floor trauma encompass more than perineal trauma or “what one could see in the delivery room.” The levator ani muscle may be affected at birth with the loss of the integral structure of the pelvic floor support, secondarily triggering the descent of the pelvic organs. The overdistension of the urogenital hiatus and anal sphincter injuries can also be consequences of a vaginal birth. An episiotomy is an intervention that seeks to facilitate the expulsion of the fetus expanding the perineum preventing tissue distension and perineal tear. However, this claim raised by its developer has no scientific basis. Today the restrictive practice of this procedure is recommended, given the potential complications that may arise when it is systematically performe. Despite this recommendation, there are no conclusive studies that explore the role that episiotomy has in obstetric pelvic floor trauma...

Perfil epidemiológico de los pacientes ingresados a la Unidad de Dolor Músculo-esquelético del Servicio de Medicina Física y Rehabilitación del Hospital Clínico Universidad de Chile / Epidemiological profile of patients admitted to the Pain Unit Musculoskeletal Service Physical Medicine and Rehabilitation Hospital Clínico Universidad de Chile

Pain is an individual and subjective experience, recognized as an important public health issue. Further, pain is a complex phenomenon which needs a transdisciplinary approach. Objective: To describe the epidemiological characteristics of patients admitted in a Pain Unit. Methods: We performed an observational prospective study that analyzed the medical records of patients who attend the Pain Clinic, at the Rehabilitation Unit in the University of Chile Clinical Hospital, between April 2012 and April 2013. Results: Women are more frequently affected by pain (78.50 percent), with a mean age of 54 years old. The mean duration of pain was 1.76 years and the most common presentation was low-backache (54.21 percent) with moderate intensity. Most of the patients were taking painkillers (75.70 percent), preferably aracetamol and NSAIDs. 47.66 percent suffered from mixed pain and a 92.52 percent manifested chronic pain. Myofascial pain and osteoarthritis were the more frequent causes. After admission, a more appropriated treatment was prescribed in all of the patients, most of them consisting in opioids and antiepileptic drugs, associated with interventional techniques (60.75 percent). As a consequence, 67.09 percent of the patients had a significant decrease in pain intensity. Conclusion: It is necessary to generate epidemiological research lines that support health policies and allows a transdisciplinary pain management...

Presencia de síntomas digestivos en el Día Mundial de la Salud Digestiva / Presence of digestive symptoms in the World Digestive Health Day

Introduction: Gastrointestinal symptoms such as heartburn, indigestion/dyspepsia, constipation and bloating are very common in every community. Our group applied a questionnaire in order to identify the presence of gastrointestinal symptoms. Methodology: In 2012, during the World Digestive Health Day a survey of 13 questions given by the World Gastroenterology Organization (WGO) was administered to a group of people (E) at the Clinical Hospital of the University of Chile (HCUCH); the questions were based on the presence and frequency of digestive symptoms. The results were compared with two other groups, one rural (R) and another comprised of people that were accompanying the patients attending HCUCH (group A) for examinations. A χ2 test was used to compare variables by group. Results: Total E = 270, A = 100, R = 69. Women: E = 212 (79 percent), A = 66 (66 percent), R = 43 (62.4 percent). Age E = 48, A = 44, R = 53 (p = 0.0003). Digestive discomfort: E = 94.8 percent (256), A = 81 percent (81), R = 85.5 percent (59) p = 0.000. Distension/bloating E = 94.44 percent (255), A = 84 percent (84), R = 81.2 percent (56) p = NS. Abdominal pain/discomfort E = 89.6 percent (242), A = 75 percent (75), R = 82.6 percent (57) p = 0.000. Constipation: E = 80 percent (216), A = 71 percent (71), R = 63.7 percent (44) p = 0.01, with significant differences in sensation of incomplete evacuation in the 3 groups p = 0.001. Heartburn E = 75.2 percent (203), A = 67 percent(67), R = 68.1 percent (47) p = NS. Reflux E = 74 percent (200), A = 69 percent (69), R = 68.1 percent (47) p = NS. Interference with sleep: E = 62.2 percent (168), A = 45 percent (45), R = 56.5 percent (39) p = 0.012. Problems with soft/mushy/liquid stools = 65.92 percent (178), A = 61 percent (61), R = 68.11 percent (47) p = NS. Conclusions: Over 80 percent of respondents provided an upset stomach. The control group had the highest prevalence of digestive symptoms...

Introducción: Síntomas digestivos como pirosis, indigestión/dispepsia, constipación y distensión son muy frecuentes en cada comunidad. Nuestro grupo aplicó un cuestionario con el objetivo de identificar la presencia de sintomatología digestiva. Metodología: En el año 2012, durante el día mundial de la salud digestiva (DMSD) se realizó en el Hospital Clínico de la Universidad de Chile (HCUCH), una encuesta propuesta por la Organización Mundial de Gastroenterología (OMGE) que incluía 13 preguntas basadas en la presencia y frecuencia de síntomas digestivos. La encuesta se hizo a un grupo de personas (E). Los resultados fueron comparados con otros dos grupos, uno rural (R) y otro conformado por acompañantes (A) de pacientes que acudieron a exámenes al HCUCH. Se realizó una prueba χ² para comparar variables por grupo. Resultados: Total E = 270; A = 100; R = 69. Mujeres: E = 212 (79 por ciento), A = 66 (66 por ciento), R = 43 (62,4 por ciento). Edad E = 48, A = 44, R = 53 (p = 0,0003). Molestias digestivas: E = 94,8 por ciento (256), A = 81 por ciento (81); R = 85,5 por ciento (59) p = 0,000. Distensión/hinchazón E = 94,44 por ciento (255), A = 84 por ciento (84), R = 81,2 por ciento (56) p = NS. Dolor/molestia abdominal E = 89,6 por ciento (242), A = 75 por ciento (75), R = 82,6 por ciento (57) p = 0,000. Constipación: E = 80 por ciento (216), A = 71 por ciento (71), R = 63,7 por ciento (44) p = 0,01, existiendo diferencias significativas en sensación de evacuación incompleta en los 3 grupos p = 0,001. Pirosis E = 75,2 por ciento (203), A = 67 por ciento (67), R = 68,1 por ciento (47) p = NS. Reflujo E = 74 por ciento (200), A = 69 por ciento (69), R = 68,1 por ciento (47) p = NS. Interferencia con el sueño: E = 62,2 por ciento (168), A = 45 por ciento(45), R = 56,5 por ciento (39) p = 0,012. Problemas de heces blandas/ pastosas/líquidas E = 65,92 por ciento (178), A = 61 por ciento (61), R = 68,11 por ciento (47) p = NS...

Programa de incentivo de la actividad física apoyado con contadores de pasos en la enfermedad pulmonar obstructiva crónica / A program of physical activity enhancement using pedometers in chronic obstructive pulmonary disease

Introducción: La actividad física diaria está reducida en la EPOC lo que se asocia a una mayor morbimortalidad. La indicación médica de caminar más se ha demostrado poco eficaz y, en nuestro medio, se desconoce el beneficio del uso de los contadores de pasos en la EPOC. Objetivo: Determinar el efecto de los contadores de pasos para incentivar la actividadfísica en la EPOC. Método: 55 Pacientes con EPOC fueron incorporados a un programa de tres meses destinado a aumentar su actividad física y fueron asignados aleatoriamente a dos grupos: en uno el paciente autocontroló su actividad con un contador de pasos (grupo experimental) y en el otro se siguió el manejo habitual (grupo control). Al comienzo y al final del estudio se realizaron las siguientes mediciones: promedio de pasos caminados por día medidos en una semana, espirometría, caminata de seis minutos (C6M), disnea con escala de la Medical Research Council Modificada (mMRC) y calidad de vida mediante cuestionario de Saint George (SGRQ) y COPD Assessment Test (CAT). Resultados: 69 por ciento de los pacientes eran hombres, edad promedio 68 años, VEF1ICVF = 55 por ciento, VEF(1)63 por ciento predicho. El grupo experimental (n = 29) y el control (n = 26) presentaron características basales comparables. El grupo experimental presentó una diferencia significativa en el incremento de los pasos por día en comparación con el grupo control (mediana de 2073,5 versus -68, p < 0,001). También hubo diferencia en la reducción del componente síntomas del SGRQ (promedio de -9,65 versus 0,05 puntos, grupo experimental versus control, p = 0,048). Conclusión: Un programa de incentivo de la actividad física apoyado con contadores de pasos es útil para incentivar la actividad física en la EPOC.

Introduction: The level of daily physical activity is reduced in COPD and has a negative effect on the morbidity and mortality of this condition. Usual advice is not sufficient to reverse the sedentary condition. Pedometers are widely used but their effects in COPD have not been tested in our country. Aim: To determine the effect of pedometers on physical activity in COPD patients. Method: 55 COPD patients were recruited for a 3 months individual program promoting daily physical activity enhancement and were randomly assigned either to a pedometer-based program (experimental group) or to usual care (control group). At the beginning and at the end of the intervention period we measured the average daily steps over one week, exercise capacity using the six-minute walking test (6MWT), the MMRC dyspnoea score, the Saint George Respiratory Questionnaire (SGRQ) and the COPD assessment Test (CAT) to estimate quality of life. Results: 69% of the subjects were male, mean age 68 years, mean FEV1IFVC 55%, mean FEV163% of predicted value. Experimental (n = 29) and control group (n = 26) had comparable baseline characteristics. There was a significant difference in the increase of steps/day in the experimental group in comparison with the control group (median value = 2073.5 versus -68, p < 0.001). Also, a significant difference was observed in the symptoms subscale score of the SGRQ (reduction of 9.65 versus 0.05points, experimental versus control group, p = 0.048). Conclusions: Pedometers are a useful tool to increase physical activity level in COPD.

Telepsiquiatría para el tratamiento de trastornos mentales comunes en la atención primaria / Telepsychiatry for the treatment of mental commmon disorders in the primary care

Introducción: Las tecnologías de la información y comunicaciones (TICYC) y su aplicación en la medicina, son variadas y han demostrado ser una alternativa efectiva de entrega de atención especializada en atención primaria de salud (APS). Objetivo: Evaluar el uso de TICYC en psiquiatría (telepsiquiatría) en la APS para el manejo de trastornos mentales comunes (TMC). Metodología: se hizo una revisión sistemática de la literatura publicada en Medline, Proquest, LILACS, SciELO, Sciencie Direct, EBSCO, Springer Link, Oxford Journals, The Cochrane Library. Se seleccionaron revisiones sistemáticas y metanálisis, ensayos clínicos aleatorizados, reportes de experiencias y estudios de evaluación económica, que estuvieran en el idioma inglés y/o castellano en la cual utilizaran TICYC en APS para el manejo de TMC. Resultados: Se encontraron 24 artículos relacionados con el uso de TICYC en el tratamiento de los TMC en la APS. Trece son de tratamiento, 5 de cribado, 2 de satisfacción, 1 de monitorización y 1 de costo-efectividad. Conclusiones: El uso de telpsiquiatría para el manejo de TMC en APS, tiene una buena fiabilidad comparado con la atención persona a persona, siendo el uso del teléfono la TICYC más utilizada para el cribado y seguimiento de programas en TSQ. El uso de TICYC en telpsiquiatría sería igualmente efectiva para el manejo de TMC en APS.

Introduction: information technology and communications (IT&C) and its application in medicine, are varied and have proven to be an effective alternative for delivery of specialized care in primary health care (PHC). Objective: To evaluate the use of IT&C in psychiatry (telepsychiatry) in the APS for the management of common mental disorders (CMD). Methodology: Conducted a systematic review of the literature published in Medline, Proquest, LILACS, Sky, Science Direct, EBSCO, Springer Link, Oxford Journals, The Cochrane Library. Were selected systematic reviews and meta-analysis, randomized clinical trials, reports of experiences and economic evaluation studies, which were in English and / or Spanish in which IT&C used in PHC to manage CMD. Results: There were 24 items related to the use of IT&C in the treatment of mental disorders in PHC. Thirteen are in treatment, screening 5, 2 of satisfaction, 1 monitor and 1 cost-effectiveness. Conclusions: The use of telepsychiatry for the management of CMD in PHC, has a good reliability compared with the attention from person to person, with the use of the IT&C your most used for screening and monitoring programs in telepsychiatry. IT&C use in telpsychiatry would be equally effective in the management of CMD in PHC.

Absceso hepático: serie de 107 casos y revisión de la literatura / Hepatic abscess: series of 107 cases and literature review

Liver abscess is a rare disease with high morbidity and mortality. Objective and Method: Description of liver abscess cases attended in the Universidad de Chile Clinical Hospital between 2000 and 2007 and review of the literature on the topic. Results: For 107 cases reviewed, mean age was 59 years. Most common symptoms were fever and abdominal pain with an average duration of 19 days. Comorbidity: twenty five percent of patients had Diabetes Mellitus type 2, seven percent were immunosuppressed patients and 24 percent had undergone invasive procedures. Not achieved identify the origin in most cases. The most requested image test was abdominal CT. In 49/75 (65.3 percent) the abscess culture allowed to establish the etiology. Bacteremia was present in 17/68 (25 percent) of cases. Most cases were treated with two or more antibiotics and percutaneous drainage. Conclusion: Clinical manifestations and resolution of liver abscess in this series are consistent with those described in the literature.

El absceso hepático es una patología infrecuente con alta morbimortalidad. Objetivo y método: Describir los casos de absceso hepático en el Hospital Clínico de la Universidad de Chile entre los años 2000 y 2007 y revisión de la literatura respecto del tema. Resultados: En 107 casos revisados, la edad promedio fue 59 años. Los síntomas más frecuentes fueron fiebre y dolor abdominal con una duración promedio de 19 días. El 25 por ciento de los casos presentaba como co-morbilidad diabetes mellitus tipo 2, un 7 por ciento era inmuno suprimido y 24 por ciento había sido sometido a procedimiento invasor previo. No se logró identificar el origen en la mayoría de los casos. El estudio de imagen más solicitado fue la TC de abdomen. En 49/75 (65,3 por ciento) se estableció la etiología mediante el cultivo del absceso. Se constató bacteriemia en 17/68 (25 por ciento) pacientes. La mayoría de los casos se trataron con dos o más antimicrobianos y drenaje percutáneo. Conclusión: Las características de los casos de absceso hepático encontradas en este estudio concuerdan con lo descrito en la literatura médica.

Polimorfismo del gen de la tiopurina S-metiltransferasa en donantes de sangre de un hospital universitario / Thiopurine S-methyltransferase gene polymorphism in Chilean blood donors

Background: Thiopurine S- methyltransferase (TPMT) is a cytosolic enzyme that catalyzes the S-methylation of 6-mercaptopurine and azathioprine. Lowactivity phenotypes are correlated with polymorphism in the TPMT gene. Patients with low or undetectable TMPT activity could develop severe myelosuppression when they are treated with standard doses of thiopurine drugs. Since ethnic differences in the TPMT gen polymorphism have been demonstrated worldwide, its assessment in the Chilean population is worthwhile. Aim: To investigate the TMPT gene polymorphism in a Chilean blood donor individuals. Subjects and Methods: The frequency of four allelic variants of the TPMT gene, *2 (G238C), *3A (G460A and A719G), *3B (G460A) and *3C (A719G) were analyzed in 210 Chilean blood donors, using polymerase chain reaction (PCR), restriction fragment length polymorphism (RFLP) and allele-specific PCR-based assays. Results: TPMT variants associated to low enzymatic activity, were detected in 16 subjects (8%), who had a heterozygous genotype (*3A in 12; *3C in three and *2 in one subject). No TPMT*3B allelic variant was found. The normal allele (wild-type) was found in 92% of studied individuals. Conclusions: The allele TPMT*3A, is the most prevalent in this group of Chilean blood donors, as in Caucasian populations.