Left-censored recurrent event analysis in epidemiological studies: a proposal for when the number of previous episodes is unknown.

BACKGROUND: When dealing with recurrent events in observational studies it is common to include subjects who became at risk before follow-up. This phenomenon is known as left censoring, and simply ignoring these prior episodes can lead to biased and inefficient estimates. We aimed to propose a statistical method that performs well in this setting. METHODS: Our proposal was based on the use of models with specific baseline hazards. In this, the number of prior episodes were imputed when unknown and stratified according to whether the subject had been at risk of presenting the event before t = 0. A frailty term was also used. Two formulations were used for this "Specific Hazard Frailty Model Imputed" based on the "counting process" and "gap time." Performance was then examined in different scenarios through a comprehensive simulation study. RESULTS: The proposed method performed well even when the percentage of subjects at risk before follow-up was very high. Biases were often below 10% and coverages were around 95%, being somewhat conservative. The gap time approach performed better with constant baseline hazards, whereas the counting process performed better with non-constant baseline hazards. CONCLUSIONS: The use of common baseline methods is not advised when knowledge of prior episodes experienced by a participant is lacking. The approach in this study performed acceptably in most scenarios in which it was evaluated and should be considered an alternative in this context. It has been made freely available to interested researchers as R package miRecSurv.

Onychomycosis caused by the environmental mold Neoscytalidium dimidiatum in Colombia, and in vitro antifungal susceptibility evaluation.

Neoscytalidium dimidiatum is a plant pathogen, but can also cause onychomycosis. We compared clinical and epidemiological data of cases of onychomycosis caused by N. dimidiatum and Trichophyton rubrum. We also evaluated the in vitro antifungal susceptibility of N. dimidiatum clinical isolates. It was not possible to establish any statistical differences between groups, except the place of residence and the number of affected nails. The results suggest that onychomycosis caused by N. dimidiatum is clinically similar to that caused by T. rubrum; besides, N. dimidiatum has been shown to have low sensitivity to itraconazole, but high to terbinafine. LAY SUMMARY: Cases of onychomycosis caused by Neoscytalidium dimidiatum were studied and compared to cases of onychomycosis caused by T. rubrum. The individuals affected were adults, and the clinical characteristics were not different between groups; accordingly, mycological diagnosis is mandatory.

Colombian Rasch validation of KIDSCREEN-27 quality of life questionnaire.

BACKGROUND: The family of KIDSCREEN instruments is the only one with trans-cultural adaptation and validation in Colombia. These validations have been performed from the classical test theory approach, which has evidenced satisfactory psychometric properties. The aim of this study was to evaluate psychometric properties of KIDSCREEN-27 children and parent-proxy versions, through Rasch analysis. METHODS: The participants in the present study were two different sets of populations, 321 kids with a mean age of 12.3 (SD 2.6), 41 % 8 to 11 years old and 59 % 12 to 18 years old; and 1150 parent-proxy with an average age of 45.5 (SD 18.9). Psychometric properties were assessed using the partial credits model in the Rasch approach. Unidimensionality, fitting of person and item, response form, and differential item functioning (DIF) were measured. RESULTS: The Infit MNSQ in child self-reported version that ranges between 0.71-1.76, and 0.69-1.31 in the parent-proxy version. Scores gathered on Likert forms of 5-response options, person separation was 2.08 for child self-reported version and 2.40 for parent-proxy; reliability was 0.81 and 0.85, respectively. Items reliability was 0.99 on both versions, with separations of 11.92 for child self-reported and 10.83 for parent-proxy. There was not DIF according to the variables sex and age but was present according to socioeconomic status. CONCLUSION: There was a good fit for items and individuals to the Rasch model. Item separation was adecuate, and person separation improved when the response form was re-codified to four options. The presence of DIF according to socioeconomic status implies a scale's bias in the measure of HRQoL of Colombian children.

Quantitative changes in the corneal endothelium and central corneal thickness during anterior chamber inflammation: A systematic review and meta-analysis.

PURPOSE: To establish the effects of anterior chamber inflammation (ACI) on the corneal endothelium parameters and central corneal thickness (CCT). METHODS: We conducted a comprehensive literature review using medical databases (PubMed, EMBASE, VHL, and medRxiv) on March 8, 2023, for studies that included patients with ACI who had undergone specular microscopy or pachymetry. Case series with >10 patients, cross-sectional, case-control, and cohort studies were included. The risk of bias was assessed using CLARITY tools and validated scales such as those by Hassan Murad et al. and Hoy et al. A narrative synthesis and a quantitative standardized mean difference meta-analysis, I2 heterogeneity assessment, and publication bias tests were conducted. The study was registered in PROSPERO (CRD42023420148) and approved by the Universidad del Rosario ethical committee (DVO005 2277- CV1712). RESULTS: Thirty-four studies, encompassing 1,388 eyes with ACI, were included. Compared with healthy controls, overall, ACI eyes show significant mean differences in endothelial parameters (endothelial cell density (ECD), coefficient of variation (CV), and hexagonality (HEX)) (P < 0.05). In the subgroup analysis compared with healthy controls, both active and chronic-recurrent ACI demonstrated a reduced ECD. An increased CV was observed in active, inactive, and chronic-recurrent ACI. Lower HEX was evident in inactive, acute, and chronic-recurrent ACI, while both active and acute ACI exhibited high CCT. CONCLUSION: ACI leads to significant alterations in endothelial parameters and CCT. The primary contributors to these changes are increased IOP, uveitis duration, and intraocular surgeries. Further studies are needed to explore the impact of ACI etiology on the endothelium, potential biases in IOP measurements during acute ACI episodes, and the potential necessity for monitoring the endothelial parameters and CCT in patients with chronic ACI.

Development and Validation of a New Score to Assess the Risk of Posttransplantation Diabetes Mellitus in Kidney Transplant Recipients.

Background: Posttransplantation diabetes mellitus (PTDM) is a serious complication of solid organ transplantation. It is associated with major adverse cardiovascular events, which are a leading cause of morbidity and mortality in transplant patients. This study aimed to develop and validate a score to predict the risk of PTDM in kidney transplant recipients. Methods: A single-center retrospective cohort study was conducted in a tertiary care hospital in Medellín, Colombia, between 2005 and 2019. Data from 727 kidney transplant recipients were used to develop a risk prediction model. Significant predictors with competing risks were identified using time-dependent Cox proportional hazard regression models. To build the prediction model, the score for each variable was weighted using calculated regression coefficients. External validation was performed using independent data, including 198 kidney transplant recipients from Tübingen, Germany. Results: Among the 727 kidney transplant recipients, 122 developed PTDM. The predictive model was based on 5 predictors (age, gender, body mass index, tacrolimus therapy, and transient posttransplantation hyperglycemia) and exhibited good predictive performance (C-index: 0.7 [95% confidence interval, 0.65-0.76]). The risk score, which included 33 patients with PTDM, was used as a validation data set. The results showed good discrimination (C-index: 0.72 [95% confidence interval, 0.62-0.84]). The Brier score and calibration plot demonstrated an acceptable fit capability in external validation. Conclusions: We proposed and validated a prognostic model to predict the risk of PTDM, which performed well in discrimination and calibration, and is a simple score for use and implementation by means of a nomogram for routine clinical application.

Risk factors for graft loss and death among kidney transplant recipients: A competing risk analysis.

INTRODUCTION: Kidney transplantation is the best therapeutical option for CKD patients. Graft loss risk factors are usually estimated with the cox method. Competing risk analysis could be useful to determine the impact of different events affecting graft survival, the occurrence of an outcome of interest can be precluded by another. We aimed to determine the risk factors for graft loss in the presence of mortality as a competing event. METHODS: A retrospective cohort of 1454 kidney transplant recipients who were transplanted between July 1, 2008, to May 31, 2019, in Colombiana de Trasplantes, were analyzed to determine risk factors of graft loss and mortality at 5 years post-transplantation. Kidney and patient survival probabilities were estimated by the competing risk analysis. The Fine and Gray method was used to fit a multivariable model for each outcome. Three variable selection methods were compared, and the bootstrapping technique was used for internal validation as split method for resample. The performance of the final model was assessed calculating the prediction error, brier score, c-index and calibration plot. RESULTS: Graft loss occurred in 169 patients (11.6%) and death in 137 (9.4%). Cumulative incidence for graft loss and death was 15.8% and 13.8% respectively. In a multivariable analysis, we found that BKV nephropathy, serum creatinine and increased number of renal biopsies were significant risk factors for graft loss. On the other hand, recipient age, acute cellular rejection, CMV disease were risk factors for death, and recipients with living donor had better survival compared to deceased-donor transplant and coronary stent. The c-index were 0.6 and 0.72 for graft loss and death model respectively. CONCLUSION: We developed two prediction models for graft loss and death 5 years post-transplantation by a unique transplant program in Colombia. Using a competing risk multivariable analysis, we were able to identify 3 significant risk factors for graft loss and 5 significant risk factors for death. This contributes to have a better understanding of risk factors for graft loss in a Latin-American population. The predictive performance of the models was mild.

Occupational accidents by biological risk in clinical laboratory workers. Yopal, Colombia. / Accidentes laborales por riesgo biológico en trabajadores de laboratorio clínico. Yopal, Colombia.

BACKGROUND: Clinical laboratory workers are at permanent risk of suffering an occupational accident due to exposure to biohazard. These accidents may cause severe diseases, such as HIV, HBV or HCV. OBJECTIVE: To describe the behavior of accidents due to occupational exposure to biohazard agents, and the characteristics of reports of occupational accidents in clinical laboratories in Yopal, Colombia. MATERIAL AND METHODS: Observational descriptive study with exploratory component and retrospective analysis of incident report forms of presumed occupational accidents. RESULTS: For the period between January 1, 2016, to December 31, 2018, an occupational accident percentage of 24.6 (95% confidence interval [95% CI], 16.7-32.5) was estimated, and an underreporting percentage of 39.3 (95% CI, 21.3-57.3). The main reasons for not reporting were a perceived lack of time (45.4%), and a diminished perception of risk exposure (36.4%). In contrast, factors associated with the probability of having less occupational accidents included being hired for service time (prevalence ratio [PR] = 0.19; 95% CI, 0.04-0.89; p = 0.034), and the permanent use of personal protective equipment (PR = 0.14; 95% IC, 0.02-0.88; p =0.036). CONCLUSION: Accident statistics in clinical laboratories prove the necessity to systematically reorganize risk management strategies that take into account human factor, organizational culture and control mechanisms.

INTRODUCCIÓN: las personas que trabajan en laboratorios clínicos están en permanente riesgo de sufrir accidentes laborales por la exposición a material biológico. Estos accidentes pueden causar enfermedades graves, como hepatitis B, hepatitis C o infección por VIH. OBJETIVO: describir el comportamiento de la accidentalidad por exposición ocupacional a agentes de riesgo biológico y las características del reporte de accidentes de trabajo en laboratorios clínicos de Yopal, Colombia. MÉTODOS: estudio observacional descriptivo con componente exploratorio y análisis retrospectivo de formatos de reporte de presuntos accidentes de trabajo. RESULTADOS: para el periodo comprendido entre el 1 de enero de 2016 y el 31 de diciembre de 2018, se estimó una accidentalidad laboral de 24.6% (intervalo de confianza al 95% [IC 95%] 16.7-32.5) y un subregistro de 39.3% (IC 95% 21.3-57.3). Las principales razones del subregistro incluyeron percibir limitaciones de tiempo (45.4%) y considerar irrelevante la exposición (36.4%). Por otro lado, estar contratado por prestación de servicio (razón de prevalencias [RP] = 0.19, IC 95% 0.04-0.89, p = 0.034) y usar siempre el equipo de protección personal (RP = 0.14, IC 95% 0.02-0.88, p = 0.036) se asociaron con la probabilidad de sufrir menor accidentalidad laboral. CONCLUSIÓN: las estadísticas de accidentalidad en laboratorios clínicos reflejan la necesidad de reorganizar de manera sistemática las estrategias de gestión del riesgo en función del factor humano, la cultura organizacional y los mecanismos de control.

[Association between delayed diagnosis and breast cancer in advanced clinical stage at the time of consultation in four oncology centers in Medellin- Colombia, 2017. Cross-sectional study].

OBJECTIVE: To determine the association between delayed diagnosis and advanced clinical stage breast cancer, and to explore the factors that influence this delay. METHODS: Cross-sectional study of women over 18 years of age with breast cancer who attended 4 oncology centers in Medellín, Colombia, in 2017. The "Breast Cancer Delay Questionnaire" which includes sociodemographic and clinical variables as well as time intervals was used. Crude and adjusted odds ratio (OR) were estimated, using advanced clinical stage as outcome and delayed diagnosis as exposure. RESULTS: 42 patients were included. The median time interval between the identification of the problem and the diagnostic biopsy was 104.5 days; between the identification of the problem and the first medical visit, 20 days; and between the first visit and the diagnostic biopsy, 53 days. Of all the cases, 52.1 % were diagnosed at an advanced stage. An association was found between delayed diagnosis and advanced clinical stage (OR = 2.15 95 % CI 1.21-3.79). Age above 40 was found to be a protective factor against having an advanced-stage lesion (OR = 0.35; 95 % CI: 0.14-0.83). Delayed diagnosis was associated with affiliation to the government subsidized health system (OR = 9.67; 95 % CI 2.76- 33.9) and age over 40 years (OR = 2.75; 95 % CI1.16-6.53). CONCLUSIONS: Patient education is required in order to ensure adherence to early screening programs or timely consultation whenever a sign or symptom is identified, thus allowing diagnosis at an early stage of the disease. Moreover, prospective studies are needed in order to identify factors associated with delays in treatment after the diagnosis of breast cancer, and to assess interventions designed to reduce delays in the care of this form of cancer.

TITULO: ASOCIACIÓN ENTRE RETRASO EN EL DIAGNÓSTICO Y ESTADIO CLÍNICO AVANZADO DE CÁNCER DE MAMA AL MOMENTO DE LA CONSULTA EN CUATRO CENTROS ONCOLÓGICOS DE MEDELLÍN, COLOMBIA, 2017. ESTUDIO DE CORTE TRANSVERSAL. OBJETIVO: Establecer la asociación entre el retraso en el diagnóstico de cáncer de mama con un estadio clínico avanzado y explorar factores que influyen en dicho retraso. METODOS: Estudio de corte transversal con mujeres mayores de 18 años con cáncer de mama que consultaron en cuatro centros oncológicos de Medellín, Colombia, en 2017. Se usó el Breast Cancer Delay Questionnaire que incluye variables sociodemográficas, clínicas y de tiempos de atención. Se estimó el odds ratio (OR) crudo y ajustado por medio de una regresión logística con el estadio clínico avanzado como desenlace y el retraso diagnóstico como exposición. RESULTADOS: Se incluyeron 242 pacientes. La mediana del tiempo entre identificar el problema y la biopsia diagnóstica fue 104,5 días; entre identificar el problema y la primera consulta médica, 20 días, y de la primera consulta a la biopsia diagnóstica fue de 53 días. El 52,1 % se diagnosticó en estadio avanzado. Hubo asociación del retraso diagnóstico con estadio clínico avanzado (OR = 2,15; IC 95 %: 1,21-3,79). Se encontró que la edad mayor a 40 años es un factor protector contra una lesión avanzada (OR = 0,35; IC 95 %: 0,14-0,83). El retraso diagnóstico se asoció con estar afiliada al régimen subsidiado por el Estado (OR = 9,67; IC 95 %: 2,76-33,9) y tener edad mayor a 40 años (OR = 2,75; IC 95 %: 1,16-6,53). CONCLUSIONES: Se requieren intervenciones educativas en las pacientes para adherir a los programas de tamización temprana o la consulta oportuna al identificar un signo o síntoma, para lograr un diagnóstico en estadios tempranos de la enfermedad. Además, se requieren estudios prospectivos para determinar los factores relacionados con la demora en recibir el tratamiento una vez diagnosticado el cáncer de seno y evaluar las intervenciones destinadas a disminuir las dilaciones en la atención de este cáncer.

Discapacidad y calidad de vida después de un accidente de tránsito en Medellín y su área metropolitana. Estudio de cohorte

Objetivo: Comparar al año, el funcionamiento, calidad de vida (cv), dolor y depresión entre adultos menores y mayores de 60 años que tuvieron lesiones moderadas y graves en accidentes de tránsito ocurridos en Medellín y su área metropolitana. Metodología: Análisis secundario de dos cohortes de pacientes con lesiones moderadas y graves ocurridas en Medellín y su área metropolitana en 2009-2010 y 2015-2016. Se hizo evaluación para el funcionamiento, la cv, depresión y el dolor, con instrumentos validados para ello. Las diferencias entre las cohortes 12 meses después del accidente se compararon con t-Student. Se hizo un análisis de regresión lineal múltiple para determinar los factores explicativos de discapacidad y cv. Resultados: Se incluyeron 837 pacientes, de los cuales el 84,8 % completó el seguimiento. La motocicleta fue el principal vehículo involucrado (86,1 y 60,7 %). Se observó mejor funcionamiento en mayores de 60 años en cuidado personal, y mayor compromiso en las actividades de la vida diaria, laborales y funcionamiento global. La cv fue significativamente mejor en menores, en desempeño emocional, desempeño físico y función física. En el análisis multivariado, el mayor compromiso en el funcionamiento fue explicado por ser mujer, tener más edad, lesión más grave, mayor dolor y depresión. La mejor cv fue explicada por ser hombre, menos edad, menor gravedad de la lesión, dolor y síntomas depresivos. Conclusiones: La edad, el sexo, la gravedad de la lesión, el dolor y la depresión explican la discapacidad y las dimensiones de la cv 12 meses después del accidente de tránsito.

Objective: To compare functioning, quality of life (QoL), pain, and depression at one year between adults under and over 60 years of age who had moderate and severe injuries in traffic accidents in Medellin and its metropolitan area. Methodology: Secondary analysis of two cohorts of patients with moderate and severe injuries that occurred in Medellín and its metropolitan area in 2009-2010 and 2015-2016. They were evaluated at baseline and 12 months with functioning (who-das ii), QoL (sf-36), pain (vas), and depression (phq-9). The differences between cohorts 12 months after the accident were compared with t-Student test. A multiple linear regression analysis was done to determine factors related to disability and QoL. Results: 837 patients were included, 84,8% completed the follow-up. The motorcycle was the main vehicle involved (86,1% vs. 60,7). Better functioning was observed in people over 60 years of age in personal care, and greater commitment in activities of daily living, work and global functioning. QoL was significantly better in minors, in emotional performance, physical performance and physical function. In the multivariate analysis, the greater compromise in functioning was explained by being female, older, more severe injury, greater pain, and depression. The best QoL was explained by being male, younger, less severe injury, pain, and depressive symptoms. Conclusions: Age, sex, injury severity, pain, and depression explain disability and QoL dimensions 12 months after the traffic accident.

Objetivo: Comparar a funcionalidade, qualidade de vida (QV), dor e depressão entre adultos com menos e mais de 60 anos de idade que sofreram lesões moderadas e graves em acidentes de trânsito ocorridos em Medellín e sua região metropolitana. Metodologia: Análise secundária de duas coortes de pacientes com lesões moderadas e graves que ocorreram em Medellín e sua área metropolitana em 2009-2010 e 2015-2016. Foi feita avaliação funcional, cv, depressão e dor, com instrumentos validados para isso. As diferenças entre as coortes 12 meses após o acidente foram comparadas com o teste t de Student. Uma análise de regressão linear múltipla foi realizada para determinar os fatores explicativos para deficiência e cv. Resultados: foram incluídos 837 pacientes, dos quais 84,8% completaram o seguimento. A motocicleta foi o principal veículo envolvido (86,1 e 60,7%). Melhor funcionamento foi observado em pessoas com mais de 60 anos nos cuidados pessoais e maior comprometimento nas atividades de vida diária, trabalho e funcionamento global. A QV foi significativamente melhor nos menores, no desempenho emocional, no desempenho físico e na função física. Na análise multivariada, o maior comprometimento funcional foi explicado por ser mulher, ser mais velho, lesão mais grave, maior dor e depressão. A melhor QV foi explicada por ser homem, menor idade, menor gravidade da lesão, dor e sintomas depressivos. Conclusões: Idade, sexo, gravidade da lesão, dor e depressão explicam as dimensões de incapacidade e QV 12 meses após o acidente de trânsito.

Association between delayed diagnosis and breast cancer in advanced clinical stage at the time of consultation in four oncology centers in Medellin- Colombia, 2017. Cross-sectional study / Asociación entre retraso en el diagnóstico y estadio clínico avanzado de cáncer de mama al momento de la consulta en cuatro centros oncológicos de medellín, colombia, 2017. estudio de corte transversal

RESUMEN Objetivo: establecer la asociación entre el retraso en el diagnóstico de cáncer de mama con un estadio clínico avanzado y explorar factores que influyen en dicho retraso. Materiales y métodos: estudio de corte transversal con mujeres mayores de 18 años con cáncer de mama que consultaron en cuatro centros oncológicos de Medellín, Colombia, en 2017. Se usó el Breast Cancer Delay Questionnaire que incluye variables sociodemográficas, clínicas y de tiempos de atención. Se estimó el odds ratio (OR) crudo y ajustado por medio de una regresión logística con el estadio clínico avanzado como desenlace y el retraso diagnóstico como exposición. Resultados: se incluyeron 242 pacientes. La mediana del tiempo entre identificar el problema y la biopsia diagnóstica fue 104,5 días; entre identificar el problema y la primera consulta médica, 20 días, y de la primera consulta a la biopsia diagnóstica fue de 53 días. El 52,1 % se diagnosticó en estadio avanzado. Hubo asociación del retraso diagnóstico con estadio clínico avanzado (OR = 2,15; IC 95 %: 1,21-3,79). Se encontró que la edad mayor a 40 años es un factor protector contra una lesión avanzada (OR = 0,35; IC 95 %: 0,14-0,83). El retraso diagnóstico se asoció con estar afiliada al régimen subsidiado por el Estado (OR = 9,67; IC 95 %: 2,76-33,9) y tener edad mayor a 40 años (OR = 2,75; IC 95 %: 1,16-6,53). Conclusión: se requieren intervenciones educativas en las pacientes para adherir a los programas de tamización temprana o la consulta oportuna al identificar un signo o síntoma, para lograr un diagnóstico en estadios tempranos de la enfermedad. Además, se requieren estudios prospectivos para determinar los factores relacionados con la demora en recibir el tratamiento una vez diagnosticado el cáncer de seno y evaluar las intervenciones destinadas a disminuir las dilaciones en la atención de este cáncer.

ABSTRACT Objective: To determine the association between delayed diagnosis and advanced clinical stage breast cancer, and to explore the factors that influence this delay. Materials and methods: Cross-sectional study of women over 18 years of age with breast cancer who attended 4 oncology centers in Medellín, Colombia, in 2017. The "Breast Cancer Delay Questionnaire" which includes sociodemographic and clinical variables as well as time intervals was used. Crude and adjusted odds ratio (OR) were estimated, using advanced clinical stage as outcome and delayed diagnosis as exposure. Results: 242 patients were included. The median time interval between the identification of the problem and the diagnostic biopsy was 104.5 days; between the identification of the problem and the first medical visit, 20 days; and between the first visit and the diagnostic biopsy, 53 days. Of all the cases, 52.1 % were diagnosed at an advanced stage. An association was found between delayed diagnosis and advanced clinical stage (OR = 2.15 95 % CI 1.21-3.79). Age above 40 was found to be a protective factor against having an advanced-stage lesion (OR = 0.35; 95 % CI: 0.14-0.83). Delayed diagnosis was associated with affiliation to the government subsidized health system (OR = 9.67; 95 % CI 2.76- 33.9) and age over 40 years (OR = 2.75; 95 % CI: 1.16-6.53). Conclusion: Patient education is required in order to ensure adherence to early screening programs or timely consultation whenever a sign or symptom is identified, thus allowing diagnosis at an early stage of the disease. Moreover, prospective studies are needed in order to identify factors associated with delays in treatment after the diagnosis of breast cancer, and to assess interventions designed to reduce delays in the care of this form of cancer.

Lesiones graves y moderadas por accidentes de tránsito en mayores de 60 años. Medellín, Colombia / Severe and moderate injuries in people over 60 years of age caused by road traffic accidents in Medellín, Colombia

Resumen Introducción. Cada día, 3 400 personas mueren en el mundo por un accidente de tránsito (AT); miles sufren lesiones o adquieren una discapacidad cada año por la misma causa. En Colombia, en 2016 se registró una tasa de 92.8 heridos y 14.9 muertes por cada 100 000 habitantes. Objetivo. Describir las características de los AT y el entorno de su atención en mayores de 60 años con lesiones moderadas o graves en Medellín, Colombia, durante el periodo 2015-2016. Materiales y métodos. Estudio descriptivo de las características de personas mayores de 60 años con lesiones moderadas y graves después de un AT. Resultados. Se evaluaron247 personas, 93.1% con lesiones moderadas; el 94.1% de las lesiones graves ocurrieron cuando se atropelló un peatón. En 60.7% de los AT una moto estuvo involucrada. El puntaje global del WHODAS-II fue de 40.6 y los dominios de funcionamiento más afectados fueron actividades domésticas, actividades fuera de la casa y movilidad; en cuanto a la calidad de vida, se afectó la función física, el desempeño físico y el cambio en salud. Conclusión. Los mayores de 60 años con lesiones por AT fueron, en su mayoría, peatones atropellados por motocicletas. El AT afectó la calidad de vida y el funcionamiento de los pacientes.

Abstract Introduction: Every day, 3 400 people are killed in road traffic accidents (RTA) in the world; thousands are injured or disabled each year from the same cause. In Colombia, a rate of 92.8 injured and 14.9 deaths per 100 000 inhabitants was reported in 2016. Objective: To describe the characteristics of RTA, clinical care and quality of life of people over 60 years of age with moderate or severe injuries in Medellín, Colombia, during the period 2015-2016. Materials and methods: Descriptive study of the characteristics of people over 60 years of age with moderate and severe injuries after a a RTA. Results: 247 people were included in the study, of which 93.1% had moderate injuries; 94.1% of the severe injuries occurred when a pedestrian was hit. In 60.7% of the RTA, a motorcycle was involved. The overall WHODAS-II Score was 40.6 and the most affected operational domains were domestic activities, activities outside the home and mobility. In terms of quality of life, physical function, physical performance and change in health were affected. Conclusion: People over 60 years of age with RTA injuries were mostly pedestrians and motorcycles were the most frequent vehicle involved. RTA affected patients' quality of life and functioning.

Comparación de la efectividad del fentanilo versus morfina, en dolor severo postoperatorio. Ensayo clínico aleatorizado, doble ciego / Comparison of the effectiveness of fentanyl versus morphine for severe postoperative pain management. A randomized, double blind, clinical trial

Introduction: Intravenous rescue analgesia in the postoperative anesthesia care unit (PACU) is the most effective method for reducing postoperative pain (POP) when perioperative multimodal analgesia fails to control it. Appropriate analgesia during these first postoperative hours may prevent morbidity associated with pain. Objective: To compare the effectiveness of intravenous morphine versus fentanyl in the PACU for reducing severe POP. Methods: Randomized, prospective, double blind trial that included patients with severe POP using VAS in the PACU. Rescue was performed on one group with 01 mg/kg morphine and with another with 1 mcg/kg of fentanyl every 5 min intravenously until pain was reduced from severe to mild (VAS<4). 30 patients were included in both groups. Results: There were no significant differences in the percentage of patients with reduction of severe POP to mild 5 min after the injection of morphine or fentanyl, or in the subsequent rescue analgesia intervals (p > 0.05). Similarly, there were no significant differences in mean VAS (95% CI) in morphine or fentanyl groups beginning 5 min after the first analgesic dose (p > 0.05) between the groups. There were no significant differences in side effects such as respiratory depression, nausea, vomiting or pruritus (p = 1.0). There was a high satisfaction in both groups (p > 0.05). Conclusions: Morphine and fentanyl were equally effective in treating severe POP after 5 min and following intervals after rescue analgesia was initiated, during 25 min at PACU, with no differences in efficacy or adverse effects between groups Register # NCT02145975 clinical-trials.gov, prospective.

Introducción: La analgesia intravenosa de rescate en la unidad de cuidados postanestesicos (UCPA), es la forma más efectiva de reducir el dolor POP, cuando la analgesia mutimodal perioperatoria falla en controlarlo. Una adecuada analgesia en las primeras horas previene la morbilidad asociada al dolor. Objetivo: Compararla efectividad para reducir el dolor POP severo de fentanilo versus morfina en recuperación postanestésica. Metodología: Estudio aleatorizado, prospectivo, doble ciego, en pacientes con dolor severo POP medido con la escala EVA. El rescate se hizo con un grupo morfina a 0,1 mg/kg versus fentanilo a 1 mcg/kg, cada 5 minutos, vía intravenosa, hasta reducir el dolor de severo a leve (EVA <4). Se incluyeron 30 pacientes en el grupo morfina y 30 en el grupo fentanilo. Resultados: No se observaron diferencias en porcentaje de pacientes con reducción del dolor severo a leve desde los 5 minutos luego del rescate entre morfina o fentanilo, ó en los intervalos restantes (p>0,05). Similarmente, no se encontraron diferencias significativas en la media de EVA (IC 95%) desde los 5 minutos luego del rescate (p > 0.05) entre los grupos. No hubo diferencias en efectos adversos como depresión respiratoria, náuseas, vómitos o prurito entre grupos (p = 1,0). La satisfacción fue comparable en ambos grupos (p >0,05). Conclusiones: La morfina y el fentanilo fueron igualmente efectivos para el rescate en dolor severo desde los primeros 5 minutos, sin diferencias en los efectos adversos en ambos grupos. Registro # NCT02145975 (clinicaltrials.gov, prospectivo).