Development and validation of nonattendance predictive models for scheduled adult outpatient appointments in different medical specialties.

INTRODUCTION: Nonattendance is a critical problem that affects health care worldwide. Our aim was to build and validate predictive models of nonattendance in all outpatients appointments, general practitioners, and clinical and surgical specialties. METHODS: A cohort study of adult patients, who had scheduled outpatient appointments for General Practitioners, Clinical and Surgical specialties, was conducted between January 2015 and December 2016, at the Italian Hospital of Buenos Aires. We evaluated potential predictors grouped in baseline patient characteristics, characteristics of the appointment scheduling process, patient history, characteristics of the appointment, and comorbidities. Patients were divided between those who attended their appointments, and those who did not. We generated predictive models for nonattendance for all appointments and the three subgroups. RESULTS: Of 2,526,549 appointments included, 703,449 were missed (27.8%). The predictive model for all appointments contains 30 variables, with an area under the ROC (AUROC) curve of 0.71, calibration-in-the-large (CITL) of 0.046, and calibration slope of 1.03 in the validation cohort. For General Practitioners the model has 28 variables (AUROC of 0.72, CITL of 0.053, and calibration slope of 1.01). For clinical subspecialties, the model has 23 variables (AUROC of 0.71, CITL of 0.039, and calibration slope of 1), and for surgical specialties, the model has 22 variables (AUROC of 0.70, CITL of 0.023, and calibration slope of 1.01). CONCLUSION: We build robust predictive models of nonattendance with adequate precision and calibration for each of the subgroups.

Association between non-attendance to outpatient clinics and emergency department consultations, hospitalizations and mortality in a Health Maintenance Organization.

BACKGROUND: Non-attendance to scheduled medical appointments in outpatient clinics is a problem that affects patient health and health-care systems. OBJECTIVE: Evaluate association of non-attendance to scheduled appointments in outpatient clinics and Emergency Department (ED) visits, hospitalizations and mortality. METHODS: Retrospective cohort study of outpatients enrolled in 2015 to 2016 in the Hospital Italiano de Buenos Aires HMO with over five scheduled appointments. Individual non-attendance proportion was obtained by dividing missed over scheduled appointment numbers in the 365 days prior to index date. Outcomes were evaluated with a Cox proportional-hazards or Fine and Gray model for competing risks. We adjusted by several variables. RESULTS: Sixty-five thousand two hundred sixty-five adults were included. Mean age was 63.6 years (SD 18.16), 29.9% male. Outpatients had average 10.18 (SD 5.59) appointments. Non-attendance the year before the index appointment had a median of 20%. A 10% increase in non-attendance was significantly associated with ED visits (asHR 1.19; 95%CI 1.08-1.32, P < .001) and all-cause mortality (aHR 7.57; 95%CI 4.88-11.73, P < .001). In the matched subcohort analysis we observed a crude significant association of non-attendance with ED visits (P < .001) and all-cause mortality (P < .001). DISCUSSION: Our findings show non-attendance could be a marker of health events that lead to emergency department evaluations and/or death.

Causes of appointment attendance, nonattendance, and cancellation in outpatient consultations at a university hospital.

BACKGROUND: Nonattendance to scheduled appointments in outpatient clinics is a frequent problem in ambulatory medicine with an impact on health systems and patients' health. The characterization of nonattendance is fundamental for the design of appropriate strategies for its management. AIMS: To identify causes of nonattendance of scheduled ambulatory medical appointments by adult patients. METHODS: Case and two controls study nested in a prospective cohort. A telephone-administered questionnaire was applied within the first 72 hours to identify the causes of attendance, nonattendance, or cancellation in patients who had a scheduled appointment to which they had been present, absent, or cancelled. RESULTS: A total of 150 absences (cases), 176 attendances, and 147 cancellations (controls) in a prospective cohort of 160 146 scheduled appointments (2012/2013) were included. According to self-reports in telephone interviews, the most frequent causes of nonattendance were forgetting 44% (66), unexpected competing events 15.3% (23), illness or unwellness 12% (18), work-related inconvenience 5.3% (8), transport-related difficulties 4.7% (4), and cause that motivated appointment scheduling already resolved 4.7% (4). DISCUSSION: The main cause of nonattendance is forgetting the scheduled appointment, but there is a proportion of different causes that do not respond to reminders but could respond to different strategies.

[Prevalence of pain among patients admitted to a clinical hospital]. / Prevalencia de dolor en la internación en un hospital de alta complejidad de Argentina.

BACKGROUND: Pain prevalence during hospital admission is variable, with estimates ranging from 32 to 77%. AIM: To determine pain prevalence during admission to a clinical hospital. MATERIAL AND METHODS: Patients admitted to medical and surgical wards were interrogated about the presence of pain within 48 to 72 hours after admission. Subjective pain was analyzed using a scale ranging from 0 to 10. Data was analyzed separately for medical, surgical, and obstetrical patients. RESULTS: A total of 736 patients aged 18 to 94 years (416 women) were recruited. Pain prevalence at 48 hours after admission was 56% (95% confidence intervals (CI (52.7 to 60.1). Pain prevalence in medical, surgical and obstetric patients was 37% (95% CI 31.4 to 42.1), 70% (95% CI 64.5 to 75.5) and 77% (95% CI 68.6 to 84), respectively. The median pain intensities in medical, surgical, and obstetrical patients were 7 (interquartile range (IQR) 6-8), 7 (IQR 5-8) y 7 (IQR 5-8), respectively. CONCLUSIONS: The prevalence of pain among patients admitted to the hospital is high, especially in obstetric and surgical units.

User-centered design improves the usability of drug-drug interaction alerts: Experimental comparison of interfaces.

Clinical Decision Support Systems can alert health professionals about drug interactions when they prescribe medications. The Hospital Italiano de Buenos Aires in Argentina developed an electronic health record with drug-drug interaction alerts, using traditional software engineering techniques and requirements. Despite enhancing the drug-drug interaction knowledge database, the alert override rate of this system was very high. We redesigned the alert system using user-centered design (UCD) and participatory design techniques to enhance the drug-drug interaction alert interface. This paper describes the methodology of our UCD. We used crossover method with realistic, clinical vignettes to compare usability of the standard and new software versions in terms of efficiency, effectiveness, and user satisfaction. Our study showed that, compared to the traditional alert system, the UCD alert system was more efficient (alerts faster resolution), more effective (tasks completed with fewer errors), and more satisfying. These results indicate that UCD techniques that follow ISO 9241-210 can generate more usable alerts than traditional design.

[Analysis of Crowding in an Adult Emergency Department of a tertiary university hospital]. / Descripción de las características del fenómeno Crowding en la Central de Emergencia de Adultos, en un hospital universitario de alta complejidad: estudio de cohorte retrospectiva.

BACKGROUND: Crowding in Emergency Departments (ED), results from the imbalance between the simultaneous demand for health care and the ability of the system to respond. The NEDOCS scale (National Emergency Department Crowding Scale) measures the degree of crowding in an ED. AIM: To describe ED Crowding characteristics, using the NEDOCS scale, in an Argentinean hospital. MATERIAL AND METHODS: A retrospective cohort study was conducted with all adult patient consultations between July 2013 and July 2014 at the ED of Hospital Italiano de Buenos Aires. We included all hours in the analysis period (365 days x 24 h = 8,760). The NEDOCS value was calculated for each hour using an automatic algorithm and was quantified in a six points score. Levels 4 (overcrowded), 5 (severely overcrowded) and 6 (dangerously overcrowded) were defined as overcrowding. Contour plots analysis was applied to identify patterns. RESULTS: During the study period, 124,758 visits to the ED were registered. Overcrowding was present in 57.7% (5,055) of the analyzed hours. A predominance of scores between four and five was observed between 10:00 and 24:00 hours. The months with predominance of overcrowding were June, July and August (southern winter). CONCLUSIONS: The calculation of the NEDOCS score and the analysis of its temporal distribution are highly relevant to identify opportunities for improvement and to develop mechanisms to prevent the highest categories of overcrowding.

Incidence rate of symptomatic venous thromboembolic disease in patients from a medical care program in Buenos Aires, Argentina: a prospective cohort.

BACKGROUND: The incidence of venous thromboembolic disease (VTED) is estimated to be, on average, 1-2 cases per 1,000 individuals per year worldwide. There are few data concerning the incidence rate (IR) of VTED in the Argentinean population at large.Our aim was to estimate the IR of VTED at the Italian Hospital Medical Care Program (IHMCP) in Buenos Aires, the most populous city in Argentina. METHODS: This prospective cohort study evaluated all consecutive incident cases of pulmonary thromboembolism (PTE) and deep vein thrombosis (DVT) confirmed in patients over the age of 17 who were members of the IHMCP from June 2006 to May 2012. Any patient who had an initial confirmed VTED episode and was a member of the IHMCP at the time of diagnosis was considered an incident case. RESULTS: There were 1,138 cases of VTED for 687,871 person-years of follow-up. The crude IR of VTED was 1.65 (95% CI: 1.56 to 1.75) per 1,000 person-years. The highest IR was found in subjects >80 years old (5.92 per 1,000 person years; 95% CI: 5.41 to 6.49).The IRs adjusted to the population of the city of Buenos Aires were 0.90 (95% CI: 0.84 to 0.95) for VTED, 0.71 (95% CI: 0.66 to 0.76) for DVT, and 0.34 (95% CI: 0.31 to 0.37) for PTE. CONCLUSIONS: VTED is a common health problem with a high IR in members of the IHMCP, especially the elderly. This is the first paper to report prospectively the cumulative incidence of VTED in Latin America.

Physicians perceptions of an educational support system integrated into an electronic health record.

The purpose of this study is to determine the perceptions by physicians of an educational system integrated into an electronic health record (EHR). Traditional approaches to continuous medical education (CME) have not shown improvement in patient health care outcomes. Hospital Italiano de Buenos Aires (HIBA) has implemented a system that embeds information pearls into the EHR, providing learning opportunities that are integrated into the patient care process. This study explores the acceptability and general perceptions of the system by physicians when they are in the consulting room. We interviewed 12 physicians after one or two weeks of using this CME system and we performed a thematic analysis of these interviews. The themes that emerged were use and ease of use of the system; value physicians gave to the system; educational impact on physicians; respect for the individual learning styles; content available in the system; and barriers that were present or absent for using the CME system. We found that the integrated CME system developed at HIBA was well accepted and perceived as useful and easy to use. Future work will involve modifications to the system interface, expansion of the content offered and further evaluation.

Isolation of patients with vancomycin resistant enterococci (VRE): efficacy of an electronic alert system.

UNLABELLED: This study investigates the implementation of an alert system for the isolation of vancomycin resistant enterococci (VRE) colonized patients. Given the risk of admitting a patient colonized by VRE it is necessary to implement efficient isolation measures. An electronic alert system integrated into a health information system (HIS) could help with the detection of these patients and their isolation in proper units. OBJECTIVES: Determine the efficacy of an electronic alert system in improving the rate of properly isolation of patients colonized with VRE. METHODS: two consecutive series of admission in adults units of 67 patients that were infected or colonized with VRE were compared. The time period of the study was six months before the implementation of the alert system and six months post-implementation of the system. RESULTS: The proportion of admission with proper isolation of the patient in correct units increased 44% after the alert system implementation. CONCLUSION: The implementation of an alert system improved the proportion of properly isolated patients with VRE.

Safety and effectiveness of COVID-19 SPUTNIK V vaccine in dialysis patients.

INTRODUCTION: Given the vulnerability of chronic kidney disease individuals to SARS-CoV-2, nephrology societies have issued statements calling for prioritization of these patients for vaccination. It is not yet known whether COVID-19 vaccines grant the same high level of protection in patients with kidney disease compared to the non-dialysis population. The aims of this study were to evaluate the safety - measured by the adverse events potentially attributed to vaccines (ESAVI) - and the effectiveness - evaluated by the presence of antibodies - in dialysis patients immunized with the COVID-19 Sputnik V vaccine. METHODS: multicenter, observational and analytical study of a prospective cohort of hemodialysis patients from the Ciudad Autónoma de Buenos Aires participating in an official vaccination program. Dialysis requiring individuals older than 18 years, who received both components of the COVID-19 vaccine were included. RESULTS: Data from 491 patients were included in the safety analysis. ESAVI with either the first or second component was detected in 186 (37.9%, 95% CI 33.6%-42.3%). Effectiveness analysis measuring antibodies levels against SARS-CoV-2 were performed in 102 patients; 98% presented these IgG antibodies at day 21 after the second component. In patients with COVID-19 prior to vaccination, antibodies at day 21 after the first component reached almost the highest levels compared to patients without previous COVID-19, but IgG rise among patients with previous COVID-19 was lower than in those without this previous disease. CONCLUSION: The Sputnik V vaccine has been shown to be safe and effective in this patient's population.

Introducción: Dada la vulnerabilidad al SARS-CoV-2 de las personas con enfermedad renal crónica, las sociedades de nefrología han emitido declaraciones pidiendo priorizar a estos pacientes para la vacunación. Aún no se sabe si las vacunas COVID-19 confieren el mismo nivel de protección en pacientes con enfermedad renal. Los objetivos de este estudio fueron evaluar la seguridad, medida por eventos supuestamente atribuidos a las vacunas (ESAVI) y la efectividad, evaluada por la presencia de anticuerpos en pacientes en diálisis inmunizados con la vacuna COVID-19 Sputnik V. Métodos: estudio multicéntrico, observacional y analítico de una cohorte prospectiva de pacientes en hemodiálisis, en la Ciudad Autónoma de Buenos Aires, con plan de vacunación. Se incluyeron pacientes mayores de 18 años en diálisis que recibieron ambos componentes de la vacuna COVID-19. Resultados: 491 pacientes fueron incluidos en el análisis de seguridad. Se detectó ESAVI con el primer o el segundo componente en 186 (37.9% IC 95%: 33.6%-42.3%). La efectividad medida por presencia de anticuerpos IgG contra SARS-Cov-2 se realizó en 102 pacientes, 98% presentaba IgG contra SARS-CoV-2, 21 días después del segundo componente. En pacientes con COVID-19 previo a la vacunación, los anticuerpos al día 21 del primer componente alcanzaron niveles casi mayores que en aquellos que no habían sufrido COVID-19, aunque el aumento de los niveles a los 21 días del segundo componente fue menor que en los pacientes sin COVID-19 previo. Conclusión: Los pacientes en diálisis constituyen una población vulnerable para la infección por SARS-CoV-2, por lo tanto, más allá de las recomendaciones implementadas por las unidades de diálisis, la vacunación completa es mandatoria. Se ha demostrado que la vacuna Sputnik V es segura y eficaz en esta población de pacientes.

Cost-effectiveness of a hypertension management programme in an elderly population: a Markov model.

BACKGROUND: Mounting evidence shows that multi-intervention programmes for hypertension treatment are more effective than an isolated pharmacological strategy. Full economic evaluations of hypertension management programmes are scarce and contain methodological limitations. The aim of the study was to evaluate if a hypertension management programme for elderly patients is cost-effective compared to usual care from the perspective of a third-party payer. METHODS: We built a cost-effectiveness model using published evidence of effectiveness of a comprehensive hypertension programme vs. usual care for patients 65 years or older at a community hospital in Buenos Aires, Argentina. We explored incremental cost-effectiveness between groups. The model used a life-time framework adopting a third-party payer's perspective. Incremental cost-effectiveness ratio (ICER) was calculated in International Dollars per life-year gained. We performed a probabilistic sensitivity analysis (PSA) to explore variable uncertainty. RESULTS: The ICER for the base-case of the "Hypertension Programme" versus the "Usual care" approach was 1,124 International Dollars per life-year gained. PSA did not significantly influence results. The programme had a probability of 43% of being dominant (more effective and less costly) and, overall, 95% chance of being cost-effective. DISCUSSION: Results showed that "Hypertension Programme" had high probabilities of being cost-effective under a wide range of scenarios. This is the first sound cost-effectiveness study to assess a comprehensive hypertension programme versus usual care. This study measures hard outcomes and explores robustness through a probabilistic sensitivity analysis. CONCLUSIONS: The comprehensive hypertension programme had high probabilities of being cost-effective versus usual care. This study supports the idea that similar programmes could be the preferred strategy in countries and within health care systems where hypertension treatment for elderly patients is a standard practice.

COVID-19 among the inhabitants of the slums in the city of Buenos Aires: a population-based study.

OBJECTIVE: To summarise the unfolding of the COVID-19 epidemic among slum dwellers and different social strata in the city of Buenos Aires during the first 20 weeks after the first reported case. DESIGN: Observational study using a time-series analysis. Natural experiment in a big city. SETTING: Population of the city of Buenos Aires and the integrated health reporting system records of positive RT-PCR for COVID-19 tests. PARTICIPANTS: Records from the Argentine Integrated Health Reporting System for all persons with suspected and RT-PCR-confirmed diagnosis of COVID-19 between 31 January and 14 July 2020. OUTCOMES: To estimate the effects of living in a slum on the standardised incidence rate of COVID-19, corrected Poisson regression models were used. Additionally, the impact of socioeconomic status was performed using an ecological analysis at the community level. RESULTS: A total of 114 052 people were tested for symptoms related with COVID-19. Of these, 39 039 (34.2%) were RT-PCR positive. The incidence rates for COVID-19 towards the end of the 20th week were 160 (155 to 165) per 100 000 people among the inhabitants who did not reside in the slums (n=2 841 997) and 708 (674 to 642) among slums dwellers (n=233 749). Compared with the better-off socioeconomic quintile (1.00), there was a linear gradient on incidence rates: 1.36 (1.25 to 1.46), 1.61 (1.49 to 1.74), 1.86 (1.72 to 2.01), 2.94 (2.74 to 3.16) from Q2 to Q5, respectively. Slum dwellers were associated with an incidence rate of 14.3 (13.4 to 15.4). CONCLUSIONS: The distribution of the epidemic is socially conditioned. Slum dwellers are at a much higher risk than the rest of the community. Slum dwellers should not be considered just another risk category but an entirely different reality that requires policies tailored to their needs.

Severe acute respiratory syndrome coronavirus 2019. Seroepidemiology study in Argentinian slum.

Most countries in Latin America have already reported thousands of confirmed cases and vulnerable populations are the most affected by the coronavirus disease 2019 (COVID-19) pandemic. Preventive measures such as hygiene, social distancing, and isolation, essential to stop the spread of coronavirus, are difficult to accomplish for vulnerable populations due to their living conditions. Seroepidemiological surveys are assets to measure the transmission for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Until July 1st, the incidence rate of SARS-CoV-2 infection in Barrio Padre Mugica, one of the largest slums in Buenos Aires City, was 5.9%. This study aimed to establish the prevalence of SARS-CoV-2 antibodies immunoglobulin G (IgG) immediately after the outbreak, and to identify neighbourhood, household and individual factors associated with seroconversion. The prevalence based on IgG was 53.4% (95% CI 52.8% to 54.1%). For each polymerase chain reaction (RT-qPCR) confirmed case, nine people tested IgG positive, indicating a high rate of undetected (probably asymptomatic) infections. Hence, the high rate of undiagnosed people suggests that clinical criteria and epidemiological nexus should be considered. The high seroprevalence observed in the context of an intense epidemic in a vulnerable area might serve as a reference to other countries. This study contributes to future decision making by understanding population immunity against SARS-CoV2 and its relation to living conditions and foccus that comprehensive biosocial, household-level interventions are needed.

Muchos países de América Latina han informado miles de casos confirmados y las poblaciones vulnerables son las más afectadas por la pandemia de la enfermedad por coronavirus 2019 (COVID-19). Las medidas preventivas como la higiene, el distanciamiento social y el aislamiento, fundamentales para frenar la propagación del coronavirus, son difíciles de lograr en estas poblaciones debido a sus condiciones de vida. Los estudios seroepidemiológicos son de gran utilidad para medir la transmisión del síndrome respiratorio agudo severo coronavirus 2 (SARS-CoV-2). Hasta el 1 de julio, la tasa de incidencia de la infección por SARS-CoV-2 en el Barrio Padre Mugica, uno de los barrios marginales más grandes de la ciudad de Buenos Aires, era del 5.9%. Este estudio tuvo como objetivo estimar la prevalencia de anticuerpos inmunoglobulina G (IgG) para SARS-CoV-2 inmediatamente después del brote, e identificar factores del barrio, hogar e individuales asociados con la seroconversión. La prevalencia basada en IgG fue del 53.4% (IC del 95%: 52.8% a 54.1%). Para cada caso confirmado por reacción en cadena de la polimerasa (RT-qPCR), nueve personas dieron positivo en IgG, lo que indica una alta tasa de infecciones no detectadas y probablemente asintomáticas. La alta tasa de personas no diagnosticadas sugiere que se deben considerar los criterios clínicos y el nexo epidemiológico. La alta seroprevalencia observada en el contexto de una intensa epidemia en una zona vulnerable podría servir de referencia a otros países. Este estudio contribuye a la toma de decisiones futuras al comprender la inmunidad de la población contra el SARS-CoV2 en su relación con las condiciones de vida y por su enfoque en la necesidad de intervenciones integrales a nivel del hogar.

[Continuing medical education: a clinical research institutional project]. / Proyecto institucional para la educación médica continua en investigación clínica.

In Argentina, education in clinical investigation is based on courses with theoric content. In developed countries programs with ongoing and practical content exist, generating the proper context to learn. In 2006, the Hospital Italiano de Buenos Aires (HIBA) created an area to train physicians, Research Area in Internal Medicine, and enable them to participate in every step of the clinical investigation process. The objective of this study is to describe this teaching area and its impact on the investigation in Internal Medicine in the HIBA, in the period 2006-2008. This area counts with fellow positions and provides training in Clinical Investigation for rotating residents. It has different activities including lectures, project counseling and 3 ongoing Institutional Registers for prevalent medical problems, 33% (6/18) of Intern staff are currently participating, with 3 fellows and 7 monitors for the Registers; 25 residents rotated in the area and generated their own research projects. 59 posters were presented in local and international congresses. Currently 6 original articles are in process of publication and 2 in peer review evaluation. A survey was carried out to evaluate the area where 76% (35/46) of the participants believed that they have acquired new skills; with 93% (44/47) using these knowledges in their every day practice. A 100% thought that they were adequately oriented in their projects, their ideas being fully respected (97%) (45/46). The inclusion of the Research Area in Internal Medicine improved the knowledge of the process of clinical Investigation and increased independent scientific production.

[Internal Medicine Residencies in Argentina, 2008]. / Formación en las residencias de clínica médica en la Argentina, 2008.

The acquisition of medical competence in the Internal Medicine Residencies (IMR) is a complex process. In Argentina there are not current data available on the number, organization and the way the residencies work. The objective of this study was to survey the IMR in Argentina and categorize their academic and general structure. From June 2007 to June 2008 we identified all the IMR using a combined searching strategy. We contacted them looking for structural and organizational data. Academic data were collected in a sample of 24 residencies using questionnaires. We also gathered data using qualitative measurements, in a subsample of 15 residencies, by means of direct observation and in-depth interviews. We identified 162 ongoing residencies and a total of 2012 residents. The majority of them (87%) were located in big cities, with a preponderance of public residencies (66%); 13% of these didn't have a residency instructor or coordinator. Most of these didn't have Institutional Internet available. The residents median age was 29 years old (Intercuartil range 2.7), with a 64.5% of women; 24% were under the regimen called "concurrente". From the sample, 230 residents were interviewed; 13% of them (CI95% 9-18.7) did not receive any remuneration. The rest received a monthly payment (in Arg $) ranging from US$ 140 to 552. A 58% (13/22) was involved in Specialist courses. Medians for weekly working hours and for "on duty" were respectively 50 and 8 per month, with no difference between public or private institutions. These findings evidence the need to certify the formative and academic process of IMR.

[La Scientific activity in a highly complex center: What, who, where and how much is published?] / La actividad científica en un centro de alta complejidad: Qué, quién, dónde y cuánto se publica?

Introduction: We proposed to analyze the scientific production of our institution, through the publications indexed in the PUBMED and analyze: a) Total number of publications and progression over time; b) Type of publications; c) Unit participation; d) Relation between % publications / % medical unit staff; e) Impact factor. Methods: A retrospective research was performed in PUBMED database between 1/1/2013 and 12/31/2018 and all the papers that respond to the affiliation name of "Hospital Italiano" (spanish) o "Italian Hospital" (english) were reviewed. The following information was collected from each publication: authors, journal, impact factor, unit involved and language of publication. Results: A total of 1421 publications were included for the analysis. There was a progressive increase of 417% between 2013 and 2018. 802 (56%) were done only by our institution and 619 (44%) corresponded to multicenter studies. Internal medicine (341 - 23.99%) was the unit with more publications and Medical Informatics the unit with the best relation between % of publications and % professional staff (5.39). 82% (1167) of the papers were in English and the medina value of the impact factor was 2,61 (range: 0,01-29,78). Conclusion: The scientific production, measurable by the number of publications indexed in PUBMED has shown a progressive and sustained increase in time from 2013 to the present. We consider it important to stimulate and encourage professionals to continue with scientific production without neglecting quality standards of care activity.

Introducción: El objetivo del trabajo fue revisar la actividad científica de nuestra institución, a través de las publicaciones indexadas en PUBMED y analizar: a) Número total de publicaciones; b) Tipo de publicaciones; c) Servicios participantes; d) Relación % publicaciones / % plantel medico hospitalario; e) Factor de impacto de las revistas. Metodología: Se realizó una búsqueda retrospectiva en la base de datos PUBMED entre 2013 y 2018 inclusive y todos los artículos que tenían en su afiliación "Hospital Italiano" (español) o "Italian Hospital" (ingles)" fueron revisados. De cada publicación se recopilo: autores, revista, factor de impacto, servicio involucrado, instituciones intervinientes e idioma de publicación. Resultados: Un total de 1421 publicaciones fueron incluidas para el análisis y se evidencio un aumento progresivo del 417% entre 2013 y 2018. 802 (56%) correspondían a trabajos propios de nuestra institución y 619 (44%) a trabajos multicéntricos. El servicio de Clínica Médica (341 - 23.99%) fue el que presento más publicaciones e Informática Médica el de mejor relación entre % de publicaciones y % plantel profesional (5.39). El 82% (1167) de las publicaciones fueron realizadas en el idioma ingles y el valor medio del factor de impacto fue 2,61 (rango: 0,01-29,78). Conclusión: La producción científica, medible por el número de publicaciones indexadas en PUBMED ha mostrado un aumento progresivo y sostenido en el tiempo desde 2013 a la fecha. Consideramos importante estimular y fomentar a los profesionales para continuar con la actividad científica sin descuidar los estándares de calidad de la actividad asistencial.

Terminology Services: Standard Terminologies to Control Health Vocabulary.

Healthcare Information Systems should capture clinical data in a structured and preferably coded format. This is crucial for data exchange between health information systems, epidemiological analysis, quality and research, clinical decision support systems, administrative functions, among others. Structured data entry is an obstacle for the usability of electronic health record (EHR) applications and their acceptance by physicians who prefer to document patient EHRs using "free text". Natural language allows for rich expressiveness but at the same time is ambiguous; it has great dependence on context and uses jargon and acronyms. Although much progress has been made in knowledge and natural language processing techniques, the result is not yet satisfactory enough for the use of free text in all dimensions of clinical documentation. In order to address the trade-off between capturing data with free text and at the same time coding data for computer processing, numerous terminological systems for the systematic recording of clinical data have been developed. The purpose of terminology services consists of representing facts that happen in the real world through database management in order to allow for semantic interoperability and computerized applications. These systems interrelate concepts of a particular domain and provide references to related terms with standards codes. In this way, standard terminologies allow the creation of a controlled medical vocabulary, making terminology services a fundamental component for health data management in the healthcare environment. The Hospital Italiano de Buenos Aires has been working in the development of its own terminology server. This work describes its experience in the field.

Incidence of hospital-acquired venous thromboembolic disease.

BACKGROUND: There is limited knowledge of the incidence of venous thromboembolic disease (VTE) during hospitalization, since most of these are community-based data. PURPOSE: To estimate the incidence rate (IR) of VTE developed during hospitalization. METHODS: Prospective cohort of all inpatients admitted in a university tertiary hospital, in Argentina. The inclusion criteria were defined as: adult patients consecutively admitted from July/2006 to August/2013, for any cause. Patients admitted for VTE were excluded; all patients at the time of admission were free of event. Each person was followed contributing time at risk, from admission to event, discharge or death. VTE incident cases were captured from the Institutional Registry of Thromboembolic Disease (ClinicalTrials.gov Identifier NCT01372514). Incidence rate was calculated with 95% confidence intervals. RESULTS: The crude incidence rate of VTE for clinical patients was 0.49 (95%CI 0.45-0.55) per 1,000 cases person-days, and IR adjusted for WHO was 0.23 (95%CI 0.19-0.26). The crude IR of VTE for surgical patients was 0.25 (95%CI 0.23-0.27), and IR adjusted for WHO was 0.13 (95%CI 0.10-0.17). The incidence rate ratio (IRR) for VTE shows that surgical admission reduces the IRR and age categories increases the thrombosis rate risk, after adjustment for age category, sex and surgical admission. CONCLUSIONS: This study suggests that there is a high risk of VTE in hospitalized patients and is still a frequent problem.

Evaluation of the Association Between Different Patient Indexing Strategies and Effective Indexing in Health Centers of the Public System of the Autonomous City of Buenos Aires: An Exploratory Study.

During the implementation of an electronic health record (EHR) system in the public system of the city of Buenos Aires, Argentina, different patient indexing strategies were devised and implemented. We sought to assess the association between these strategies and effective indexing (proportion of patients who are indexed and have a consultation registered in the EHR). Strategies were grouped into three modalities (High, Intermediate, and Low intensity). We estimated hazard ratios (HR) comparing the High and Low intensity to the Intermediate strategies. The crude analyses showed a significant difference between the curves (p < 0.0001). In the multivariate analysis, the HRs of High and Low intensity interventions showed on average, values above 1 from 0 to 90 days compared to the Intermediate intensity strategy (High: 2.08 (1.65, 2.52); Low: 2.59 (2.29, 2.9)). From that point on, the HRs of both strategies were not different from 1.

Change Management Strategies: Transforming a Difficult Implementation into a Successful One.

The implementation of health Information Technologies (IT) contributes to improve quality of care and management processes. In spite, evidence shows that the rates of IT adoption are not the expected ones. Since 2004, Public Healthcare System of Buenos Aires city has been implementing a Healthcare Information System with a difficult adoption in clinical setting. In December 2015, the Government made some changes that allowed the implementation of an Electronic Health Record in 20 Primary Care Centers. This paper describes the change management strategies that were designed in order to transform a difficult implementation into a successful one. The combination of timely approach to change management, good governance and specialized human resources were keys to achieve this goal.