Comparison of the refractive prediction errors of artificial intelligence formula with 3 conventional formulas and 11 combination methods in cataract surgery on eyes with short axial length

ABSTRACT Purpose: To compare the refractive prediction error of Hill-radial basis function 3.0 with those of 3 conventional formulas and 11 combination methods in eyes with short axial lengths. Methods: The refractive prediction error was calculated using 4 formulas (Hoffer Q, SRK-T, Haigis, and Hill-RBF) and 11 combination methods (average of two or more methods). The absolute error was determined, and the proportion of eyes within 0.25-diopter (D) increments of absolute error was analyzed. Furthermore, the intraclass correlation coefficients of each method were computed to evaluate the agreement between target refractive error and postoperative spherical equivalent. Results: This study included 87 eyes. Based on the refractive prediction error findings, Hoffer Q formula exhibited the highest myopic errors, followed by SRK-T, Hill-RBF, and Haigis. Among all the methods, the Haigis and Hill-RBF combination yielded a mean refractive prediction error closest to zero. The SRK-T and Hill-RBF combination showed the lowest mean absolute error, whereas the Hoffer Q, SRK-T, and Haigis combination had the lowest median absolute error. Hill-radial basis function exhibited the highest intraclass correlation coefficient, whereas SRK-T showed the lowest. Haigis and Hill-RBF, as well as the combination of both, demonstrated the lowest proportion of refractive surprises (absolute error >1.00 D). Among the individual formulas, Hill-RBF had the highest success rate (absolute error ≤0.50 D). Moreover, among all the methods, the SRK-T and Hill-RBF combination exhibited the highest success rate. Conclusions: Hill-radial basis function showed accuracy comparable to or surpassing that of conventional formulas in eyes with short axial lengths. The use and integration of various formulas in cataract surgery for eyes with short axial lengths may help reduce the incidence of refractive surprises.

Comportamiento alimentario de Aedes aegypti en brotes de dengue de dos zonas rurales del Perú durante el ciclón Yaku y El Niño Global del 2023 / Aedes aegypti feeding behavior during dengue outbreaks in two rural areas of Peru during the Yaku cyclone and El Niño phenomenon of 2023

RESUMEN Objetivos. Determinar la alimentación del Aedes aegypti en brotes de dengue de dos zonas rurales del Perú durante el ciclón Yaku y El Niño Global del 2023. Material y métodos. Se analizaron ocho muestras de sangre (8 pooles) obtenidas del abdomen de 80 especímenes Aedes aegypti capturados en los distritos rurales de Querecotillo y Marcavelica durante brotes de dengue acontecidos en el ciclón Yaku y en El Niño Global. Se extrajo ADN de las muestras analizadas, se llevó a cabo una PCR dirigida al gen CytB como marcador genético y los productos PCR fueron digeridos enzimáticamente con las restrictasas Hae III y Mwo I. Los productos PCR-RFLP fueron visualizados por electroforesis en gel de agarosa al 4%. Resultados. Se obtuvo ADN de todas las muestras y como producto PCR un amplicón de 358 pb. Así mismo, el único RFLP en Hae III observado fue el de Homo sapiens sapiens (233 y 125 pb). No se observó RFLP en Hae III de Gallus gallus y RFLP en Mwo I de Canis familiaris y Mus musculus. Conclusión. En brotes de dengue de zonas rurales, durante el ciclón Yaku y en El Niño Global, el Aedes aegypti presentó un comportamiento alimenticio antropofílico conservado.

ABSTRACT Objective. To determine the feeding behavior of Aedes aegypti in dengue outbreaks in two rural areas of Peru during the Yaku cyclone and El Niño phenomenon of 2023. Material and methods. Eight blood samples (8 pools) were obtained from the abdomen of 80 Aedes aegypti specimens captured in the rural districts of Querecotillo and Marcavelica during the Yaku cyclone and El Niño dengue outbreaks. DNA was extracted from the analyzed samples, then a PCR was directed at the CytB gene as a genetic marker and the PCR products were enzymatically digested with the restrictases Hae III and Mwo I. The PCR-RFLP products were visualized by agarose gel electrophoresis at 4%. Results. DNA was obtained from all samples and a 358 bp amplicon was obtained as a PCR product. Likewise, the only RFLP found in Hae III was from Homo sapiens sapiens (233 and 125 bp). RFLP was not found in Hae III of Gallus gallus and RFLP in Mwo I of Canis familiaris and Mus musculus. Conclusion. Aedes aegypti showed conserved anthropophilic feeding behavior in dengue outbreaks in rural areas during the Yaku cyclone and El Niño.

Fatores preditivos da permanência em uma Unidade de Queimados / Factors predicting burn unit length-of-stay

Introdução: A taxa de mortalidade em pacientes queimados diminuiu significativamente, tornando importante avaliar outros desfechos, como o tempo de internação, que aumenta a morbidade física e psicológica, o risco de infecção hospitalar e os custos financeiros. O objetivo deste estudo é analisar a relevância de vários fatores no tempo de internação na Unidade de Queimados. Método: Foram incluídos neste estudo 711 pacientes admitidos entre 2011 e 2020 na Unidade de Queimados do Hospital de São José, Centro Hospitalar Lisboa Central, Lisboa, Portugal. Os dados coletados foram analisados utilizando o PSPP para Windows. Resultados: Os pacientes eram predominantemente do sexo masculino, com idade média de 54 anos. O tempo médio de permanência hospitalar foi de 29 dias. Os fatores que prolongaram a estadia hospitalar foram relacionados à gravidade da queimadura, ao número de cirurgias e ao tempo decorrido até a primeira cirurgia, valores laboratoriais alterados tanto no perfil hematológico quanto químico durante a hospitalização, e a presença e o número de infecções documentadas. Conclusão: Existem fatores potencialmente modificáveis que infiuenciam o tempo de permanência hospitalar. Nosso estudo nos permite concluir que o tempo decorrido até a primeira intervenção cirúrgica e a presença e o número de infecções documentadas prolongam significativamente esse desfecho, e ênfase deve ser dada à implementação de medidas que favoreçam a intervenção cirúrgica precoce e o controle rigoroso de infecções.

Introduction: Burn patients' mortality rate has decreased significantly, making it important to evaluate other outcomes, such as length-of-stay, which increases physical and psychological morbidity, risk of nosocomial infection, and financial costs. The objective of this study is to analyze the relevance of several factors in the Burn Unit length-of-stay. Material and Methods: 711 patients were included in this study, admitted between 2011 and 2020 to the Burn Unit at São José Hospital, Centro Hospitalar Lisboa Central, Lisbon, Portugal. Collected data was analyzed using PSPP for Windows. Results: Patients included in the study were predominantly males, with a mean age of 54 years. The mean length of stay was 29 days. The factors that prolonged in-hospital stay were those related to the severity of the burn, the number of surgeries and the time elapsed until the first one, altered laboratory values in both hematologic and chemistry profile during the hospitalization, and the presence and number of documented infections. Conclusion: There are potentially modifiable factors that influence length-of-stay. Our study allows us to conclude that the time elapsed until the first surgical intervention and the presence and number of documented infections significantly prolong this outcome, and emphasis should be given to the implementation of measures that favor early surgical intervention and strict infection control.

Correlation of axial length and corneal power with refractive status of patients with refractive error in Kano, North-Western Nigeria

Background: Uncorrected refractive errors are a major cause of blindness and low vision. Determination of the etiology is essential in planning appropriate treatment modalities. Aim of this study was to determine the correlation between axial length and corneal power with refractive status of patients with refractive error in Kano, Nigeria. Methods: Observational cross-sectional study in which 385 eligible patients were recruited. Relevant history was obtained from the patients and ocular examination was done. Objective and Subjective refraction were performed. Spherical equivalent was calculated for patients with astigmatism. Keratometric readings (k1 and k2) and measurement of axial length were taken. Data was analyzed using the statistical package for the social sciences (SPSS) version 22. Results: Statistically significant inverse association (r=-1.7, r2=56.8%, p<0.0001) was found between Spherical equivalent objective refraction and axial length of right eye. Statistically significant inverse association (r=-1.2, r2=53.3%, p<0.0001) was found between Spherical equivalent subjective refraction and axial length of right eye. Statistically significant inverse association (r=-0.5, r2=8.5%, p<0.0001) was found between spherical equivalent objective refraction and corneal power of the right eye. Statistically significant inverse association (r=-0.3, r2=6.4%, p<0.0001) was found between spherical equivalent subjective refraction and Corneal power of right eye. Negative correlation existed between axial length and corneal power but was not statistically significant (r=-0.0, p<0.4). Conclusions: The study established that axial length and corneal power are the determinants of refractive status and that axial length is a stronger determinant.

Optimizing gynecologic surgical outcomes: embracing enhanced recovery strategies

The implementation of enhanced recovery after surgery (ERAS) pathways represents a concerted effort to optimize patient outcomes in the perioperative period while minimizing postoperative complications and readmissions. ERAS achieves these objectives through the integration of various elements into a comprehensive perioperative management program, aimed at reducing surgical stress and its associated repercussions. Key principles of ERAS encompass preoperative counselling, nutritional strategies, emphasis on regional anaesthesia and nonopioid analgesics, meticulous fluid balance, maintenance of normothermia, and promotion of postoperative recovery strategies such as early mobilization and thromboprophylaxis. The benefits of ERAS are manifold, including shorter hospital stays, diminished postoperative pain and analgesic requirements, expedited return of bowel function, reduced complication and readmission rates, and heightened patient satisfaction, all achieved without elevating readmission, mortality, or reoperation rates. Effective adoption of ERAS necessitates institutions to evaluate their infrastructure and patient flow to support its implementation adequately. Furthermore, sustainable ERAS programs should be seamlessly integrated as a standard model of care within healthcare delivery systems. The success of ERAS hinges upon the simultaneous implementation of its multiple components, underscoring its holistic approach. Institutions are urged to endorse the adoption of ERAS pathways emphatically as a means to enhance patient care and improve perioperative outcomes.

Efecto de la implementación de las recomendaciones del protocolo de recuperación mejorada después de cirugía (ERAS) en cirugía colorrectal en un hospital de referencia del suroccidente colombiano / Effect of the implementation of Enhanced Recovery After Surgery (ERAS) protocol recommendations in colorectal surgery at a reference hospital in Southwestern Colombia

Introducción. La implementación del protocolo de recuperación mejorada después de cirugía (ERAS) ha demostrado mejorar los desenlaces en cirugía colorrectal. En Colombia su implementación es escasa y se tiene poca evidencia de sus beneficios. Por esa razón, el objetivo de este estudio fue evaluar el efecto de la implementación del protocolo ERAS en los pacientes sometidos a cirugía colorrectal en un hospital de referencia en el suroccidente colombiano. Métodos. Estudio observacional con abordaje de emulación de experimento clínico ideal. Se incluyeron pacientes adultos sometidos a cirugía colorrectal mayor entre los años 2021 y 2023. Se midió días de estancia hospitalaria, ingreso a unidad de cuidado intensivo (UCI) y la presencia de complicaciones globales, reintervenciones o reingreso hospitalario a 30 días. Se realizó un análisis univariado y multivariado para medir el efecto de la implementación del protocolo ERAS en los desenlaces. Resultados. En total,132 pacientes cumplieron los criterios de inclusión, 79 pacientes en el período previo a la implementación de ERAS y 53 pacientes con el protocolo ERAS. En el análisis multivariado, se encontró una reducción relativa del 77 % para ingreso a UCI, del 57 % de complicaciones globales, del 67 % en el reingreso hospitalario y del 92 % para reintervenciones quirúrgicas tras el alta en los pacientes ERAS. Conclusiones. La implementación de las recomendaciones ERAS en nuestra institución demostró mejorar los resultados clínicos en pacientes sometidos a cirugía colorrectal mayor. En Colombia, se necesita de estudios multicéntricos que permitan evidenciar la plausibilidad y beneficios de estas recomendaciones en otras instituciones.

Introduction. Implementation of the Enhanced Recovery After Surgery (ERAS) protocol has been shown to improve outcomes in colorectal surgery. In Colombia, its implementation is scarce and there is limited evidence of its benefits. For this reason, the objective of this study was to evaluate the effect of ERAS protocol implementation in patients undergoing colorectal surgery in a reference hospital in Southwestern Colombia. Methods. Observational study with ideal clinical experiment emulation approach. Adult patients undergoing major colorectal surgery between 2021 and 2023 were included. Days of hospital stay, admission to the intensive care unit (ICU), and the presence of overall complications, reinterventions, or hospital readmission within 30 days were measured. A univariate and multivariate analysis was performed to measure the effect of the implementation of the ERAS protocol on the outcomes. Results. A total of 132 patients met the inclusion criteria, 79 patients in the period prior to ERAS implementation and 53 patients with the ERAS protocol. In the multivariate analysis, a relative reduction of 77% for ICU admissions, 57% for overall complications, 67% for hospital readmission, and 92% for surgical reinterventions after discharge in ERAS patients was found. Conclusions. Implementation of ERAS recommendations at our institution was shown to improve clinical outcomes in patients undergoing major colorectal surgery, In Colombia, multicenter studies are needed to demonstrate the plausibility and benefits of these recommendations in other institutions.

The use of foot length and foot breadth in estimating standing height of adolescents in Yenagoa, Nigeria

Background: Previous studies have shown that when standing height is difficult to measure, the length of other body parts may be a reliable alternative. However, there is limited information about the use of foot length (FL) and foot breadth (FB) in estimating standing height in the African population. The objective of this study was to investigate the appropriateness of foot length and foot breadth in estimating standing height of adolescents in Yenagoa.Methods: Using a multistage sampling technique, 1222 adolescents were recruited from secondary schools in the Yenagoa local government area. Height, foot length, and foot breadth were measured using standard techniques. Data was analysed and equations for prediction of standing height from foot length and foot breadth, were derived. Results: The mean standing height of the females was significantly lower than that of males (p<0.001). The mean foot length and mean foot breath for males were significantly higher than those for females. The mean foot length and mean foot breadth were found to increase across all the stages of adolescence. There was a significant positive correlation between standing height and foot length (r=0.700; p<0.001), foot breadth (r=0.543; p<0.001), and age (r=0.369; p<0.001). Multiple linear regression was used to derive equations for the estimation of FL and FB.Conclusions: This study found that FL and FB can be used in the estimation of standing height. For adolescents in Yenagoa, the equations derived are recommended for predicting the standing height of those who have difficulty standing upright.

A study of short cervix in mid trimester of pregnancy

Background: Preterm birth is truly a global problem. Cervical length is one of the major determinants of preterm births. Diagnosis of cervical insufficiency can be made by history of previous mid trimester loss, on clinical evaluation or sonographically by measuring cervical length or seeing funnelling of OS. The mainstay treatment of cervical insufficiency is the cervical cerclage.Methods: Present study includes 55 cases of cervical length less than or equal to 2.5 cm on TVS examination between 18 to 22 weeks of gestation of singleton pregnancy was conducted at department of obstetrics and gynaecology at SMT NHL medical municipal hospital, Ahmedabad from July 2022 to December 2023 and shows comparison of rate of full term and preterm deliveries.Results: Out of 55 patients with cervical incompetence, 22 (40%) patients were diagnosed on examination. Out of 55 patients with cervical incompetence 33 (60%) patients had preterm births and only 19 (35%) patients delivered full term, 3 (5%) had abortions. Present study shows there were 35% full term deliveries, 60% preterm deliveries and 5% had abortion among patients having cervical length less than or equal to 2.5 cm.Conclusions: Internal OS status of every patient should always be examined by ultrasound between 18 to 22 weeks. Thus, cervical length is very useful in prognostication and prediction of preterm birth. There are highest chances of late preterm in cervical incompetent patients. Our study showed better outcome with OS tightening group compared to conservative group.

Impacto de un modelo asistencial específicamente diseñado en un programa de angioplastia coronaria ambulatoria / Impact of a Specifically Designed Model of Care in an Outpatient Coronary Angioplasty Program

RESUMEN Introducción: Desarrollamos en nuestro centro un modelo asistencial ambulatorio para procedimientos coronarios percutáneos denominado Radial Lounge (RL). Los pacientes visten su propia ropa durante toda la estadía, sin restricciones de movilidad y sin necesidad de ayuno. Antes y después del procedimiento permanecen en un sillón acompañados por un familiar hasta el alta, sin monitoreo continuo y controlados por un enfermero dedicado exclusivamente a esta área. Objetivos: Evaluar la seguridad y eficacia del modelo asistencial del RL, la tasa de alta el mismo día (AMD), experiencia del paciente y eventos cardiovasculares adversos mayores (ECAM): mortalidad intrahospitalaria, mortalidad y rehospitalización a 30 días. Material y métodos: Se realizó un estudio observacional de cohorte retrospectiva en un centro cardiovascular, en que se incluyeron consecutivamente pacientes sometidos a una angioplastia transluminal coronaria (ATC) electiva en el RL. Resultados: Se incluyeron 2102 procedimientos de ATC electivas realizadas bajo el modelo RL. La tasa de AMD fue del 85,3% en el primer año de su implementación (2018) y alcanzó un 89% en 2022. Al evaluar la experiencia de los pacientes, el puntaje promedio obtenido a través de la encuesta de Consumer Assessment of Healthcare Providers and Systems (HCAHPS) fue 9,61/10. La tasa de ECAM no fue mayor que la reportada en la literatura. Conclusiones: El programa de ATC en RL demostró ser un modelo seguro y efectivo en nuestra experiencia.

ABSTRACT Introduction: An outpatient model of care for percutaneous coronary procedures called Radial Lounge (RL) was designed at our center. Patients wear their own clothes throughout their stay, with no mobility restrictions and without fasting. Before and after the procedure, they remain in an armchair accompanied by a family member until discharge, without continuous monitoring, under the supervision of a nurse dedicated exclusively to this area. Objectives: The aim of this study was to evaluate the safety and efficacy of the RL model of care, the same-day discharge (SDD) rate, patient experience, and major adverse cardiovascular events (MACE): in-hospital mortality, overall mortality, and re-hospitalization at 30 days Methods: A retrospective observational cohort study was conducted at a cardiovascular center, including consecutively enrolled patients undergoing elective percutaneous coronary intervention (PCI) in the RL. Results: A total of 2102 elective PCI procedures were included under the RL model. The SDD rate was 85.3% in the first year of its implementation (2018) and reached 89% in 2022. Assessing patient experience, the average score obtained through the Consumer Assessment of Healthcare Providers and Systems (HCAHPS) survey was 9.61/10. The rate of MACE was not higher than that reported in the literature. Conclusion: The PCI program in the RL proved to be a safe and effective model in our experience.

Assessment of obstetric history and cervical length as risk factors for preterm birth / Evaluación de la história obstétrica y la longitud cervical como factores de riesgo para el parto prematuro

Introduction: Preterm birth, before 37 weeks of gestation, is the main determinant of neonatal morbidity and mortality and is associated with serious consequences,including compromised quality of life for the affected individual and physical, psychological, and economic costs. Objective: To evaluate the correlation of obstetric history, cervicovaginal infections, and cervical length with preterm birth. A prospective, blind cohort study evaluated 1,370 pregnant women from Ribeirão Preto between 20 and 25 weeks of gestation. Materials and methods: The correlation between obstetric history, cervical length, and gestational age at birth was obtained by calculating the relative risk of the different variables. Results: The distribution of pregnant women according to cervical length (CL) showed a predominance of women with a cervix longer than 2.5 cm (n = 1,308, 95.8%), followed by women with a cervix between 2 and 2.49 cm (n = 42, 3.1%) and < 2 cm (n = 15, 1.1%). Among the 1,370 pregnant women evaluated, 133 had spontaneous preterm birth (< 259 days); 14 (10.5%) preterm births occurred in women under 19 years of age, 105 (79%) in women between 19 and 35 years, and 14 (10.5%) in women older than 35 years. Microbiological analysis showed the growth of Mycoplasma hominis, Ureaplasma urealyticum, and other bacteria in 8, 17, and 16 women with preterm birth, respectively. Among the 133 women with spontaneous preterm birth, CL was < 2.5 cm in 15 women, < 2 cm in 3, < 1.5 cm in 3, and < 1 cm in 2. Conclusion: The identification of pregnant women at high risk for preterm delivery can reduce the incidence of preterm birth. Although no gold standard test exists for the prediction of preterm birth, this study confirms that the measurement of CL is a good individual predictor.

Introducción: El nacimiento pretérmino, antes de las 37 semanas de gestación, es el principal determinante de la morbimortalidad neonatal y se asocia a graves consecuencias,incluyendo el compromiso de la calidad de vida del individuo afectado y costes físicos, psicológicos y económicos. Objetivo: Evaluar la correlación de los antecedentes obstétricos, infecciones cervicovaginales y longitud cervical con el parto prematuro. Estudio de cohorte prospectivo, ciego, evaluando 1.370 gestantes de Ribeirão Preto entre 20 y 25 semanas de gestación. Material y métodos: La correlación entre los antecedentes obstétricos, la longitud cervical y la edad gestacional al nacer se obtuvo calculando el riesgo relativo de las diferentes variables. Resultados: La distribución de las gestantes según la longitud cervical (LC) mostró un predominio de mujeres con cuello uterino mayor de 2,5 cm (n = 1,308, 95.8%), seguidas de mujeres con cuello uterino entre 2 y 2,49 cm (n = 42, 3.1%) y menor de 2 cm (n = 15, 1.1%). De las 1,370 embarazadas evaluadas, 133 tuvieron un parto prematuro espontáneo (< 259 días); 14 (10.5%) partos prematuros se produjeron en mujeres menores de 19 años, 105 (79%) en mujeres de entre 19 y 35 años, y 14 (10.5%) en mujeres mayores de 35 años. Los análisis microbiológicos mostraron la proliferación de Mycoplasma hominis, Ureaplasma urealyticum y otras bacterias en 8, 17 y 16 mujeres con parto prematuro, respectivamente. Entre las 133 mujeres con parto prematuro espontáneo, la CL fue < 2.5 cm en 15 mujeres, < 2 cm en 3, < 1.5 cm en 3 y < 1 cm en 2. Conclusión: La identificación de las gestantes con alto riesgo de parto prematuro puede reducir la incidencia de parto prematuro. Aunque no existe una prueba de referencia para la predicción del parto prematuro, este estudio confirma que la medición de la longitud cervical es una buena predicción individual.

Biometrics of the Hand's Middle Finger to Determine Stature in Chilean University Students / Biometría del Dedo Medio de la Mano para Determinar Estatura en Estudiantes Universitarios Chilenos

SUMMARY: Biometrics and forensic osteology play a significant role in human identification, as the morphological uniqueness of every individual enables the differentiation and recognition of skeletal remains. Through meticulous analysis of human remains, it is possible to determine key demographic attributes such as stature, a significant parameter in the forensic identification process. This information is of practical relevance for the identification of individuals in contexts such as disasters, vehicular accidents, terrorist attacks, armed conflicts, and forensic investigations. The objective of this study was to determine the correlation between the hand's middle finger length and stature in a group of Chilean students. A total of 211 students of both sexes from La Araucanía region, Chile, participated in the study. After obtaining informed consent to participate voluntarily in the study, each individual underwent a general anthropometric examination, followed by a specific assessment of the length of the middle finger (MFL) of both hands. The results of the multiple linear regression analysis indicated a significant prediction of stature using the length of the right (R-MFL) and left (L-MFL) middle fingers, F (2, 207) = 79.80, p < 0.001. The equations for estimating stature based on the length of the middle fingers are as follows: for R-MFL, Stature = 91.265 + (8.092 x R-MFL), and for L-MFL, Stature = 83.967 + (8.889 x L-MF). Based on these results, it was found that the length of the middle finger of both hands is predictive of stature.

La biometría y la osteología forense desempeñan un papel relevante en la identificación humana, dado que la singularidad morfológica de cada individuo permite la diferenciación y reconocimiento de restos óseos. Mediante el análisis meticuloso de los restos humanos, es posible determinar atributos demográficos clave como la estatura, un parámetro significativo en el proceso de identificación forense. Esta información posee relevancia práctica para la identificación de personas en contextos de desastres, accidentes vehiculares, ataques terroristas, conflictos armados e investigaciones forenses. El objetivo de este estudio fue determinar la correlación entre la longitud del dedo medio de la mano con la estatura, en un grupo de estudiantes chilenos. Se evaluaron 211 estudiantes de ambos sexos de la región de La Araucanía, Chile. Tras obtener el consentimiento informado para participar voluntariamente en el estudio, se sometió a cada individuo a un examen antropométrico general, seguido de una evaluación específica de la longitud del dedo medio (MFL) de ambas manos. Los resultados del análisis de las regresiones lineales múltiples indicaron una significativa predicción de estatura utilizando la longitud de los dedos medios derecho (R-MFL) e izquierdo (L-MFL), F (2, 207) = 79.80, p < 0.001. Las ecuaciones para estimar estatura basados en la longitud de los dedos medios son las siguientes: para R-MFL, Stature = 91.265 + (8.092 x R-MFL) y para L-MFL, Stature = 83.967 + (8.889 x L- MF). A partir de estos resultados, se encontró que la longitud del dedo medio de ambos manos es predictora de estatura.

Hospitalizations in older adults from the Zona da Mata of Minas Gerais, Brazil: data from the Unified Health System, 2016­2018 / Hospitalizações em idosos da Zona da Mata de Minas Gerais, Brasil: dados do Sistema Único de Saúde, 2016­2018

INTRODUCTION: The growing older population increases proportionately the demand for hospital care due to the increase in health problems. OBJECTIVE: To estimate the prevalence and incidence of hospitalizations, and to investigate associated factors in older adults from the Zona da Mata of Minas Gerais, Brazil, between 2016-2018. Secondly, to provide a more comprehensive epidemiological overview of hospitalizations, the following were estimated: monthly hospitalization rate; hospital mortality rate; frequency of hospitalizations according to diagnosis, hospitalizations for conditions sensitive to primary care and in-hospital death; and hospital costs. METHODS: This is an ecological and descriptive-analytic study. Data were obtained from the Brazilian Hospital Information System (SIH/SUS). RESULTS: The prevalence of hospitalizations was 35.1% (31.2% in women and 39.7% in men). The monthly rate of hospitalizations was higher in older men when compared with older women (Rate-Ratio=1.35 [95% CI=1.27-1.43]) and adult men between 40­59 years (Rate Ratio=2.42 [95% CI=2.26-2.58]). The cumulative incidence of hospitalization was 144/1,000 older persons (125/1,000 women and 169/1,000 men). Factors significantly associated with hospitalizations were: male sex (PR=1.52 [95% CI=1.11-2.08]); hospitalization in surgical bed (PR=1.93 [95% CI=1.05-3.56]); absence of death (PR=1.94 [95% CI=1.03-3.65]); and hospital stay ≥15 days (PR=0.71 [95% CI=0.54 0.95]). The cost of hospitalizations was R$ 220,8 million (mean of R$ 201,700/day). CONCLUSÃO: The findings strengthen the need for preventive healthcare for the older population living in the Zona da Mata of Minas Gerais and alert managers to the substantial socioeconomic impact of hospitalizations.

INTRODUÇÃO: O crescente aumento da população idosa faz aumentar proporcionalmente a demanda por cuidados hospitalares devido ao aumento dos problemas de saúde. OBJETIVO: Estimar a prevalência e incidência de hospitalizações, e investigar fatores associados, em idosos da Zona da Mata Mineira, Brasil, entre 2016-2018. Secundariamente, com intuito de fornecer um panorama epidemiológico mais abrangente acerca das hospitalizações, foram estimadas: taxa mensal de hospitalização; taxa de mortalidade hospitalar; frequência de hospitalizações conforme o diagnóstico, internações por condições sensíveis à atenção primária (ICSAP) e óbito hospitalar; e custos hospitalares. MÉTODO: Trata-se de um estudo ecológico e descritivo-analítico. Os dados foram obtidos do Sistema de Informação Hospitalar brasileiro (SIH/SUS). RESULTADOS: A prevalência de hospitalizações em idosos foi de 35,1% (31,2% em mulheres e 39,7% em homens). A taxa mensal de hospitalização foi maior em homens idosos quando comparados com mulheres idosas (Razão-de-Taxas=1,35 [IC 95%=1,27-1,43]) e homens adultos entre 40­59 anos (Razão-de-Taxas=2,42 [IC 95%=2,26-2,58]). A incidência acumulada de hospitalização foi de 144/1.000 idosos (125/1.000 mulheres e 169/1.000 homens). Os fatores significativamente associados com as hospitalizações foram: sexo masculino (RP=1,52 [IC 95%=1,11­2,08]), internação em leito cirúrgico (RP=1,93 [IC 95%=1,05­3,56]), ausência de óbito (RP=1,94 [IC 95%=1,03-3,65]) e permanência hospitalizado ≥15 dias (RP=0,71 [IC 95%=0,54-0,95]). O custo das hospitalizações foi de R$ 220,8 milhões (média de R$ 201,7 mil/dia). CONCLUSÃO: Os resultados reforçam a necessidade de cuidados preventivos à saúde da população idosa da Zona da Mata Mineira e alertam gestores para o substancial impacto socioeconômico gerado pelas hospitalizações.

Comparative analysis of neonatal weight and length pattern in cross-cradle and other breastfeeding positions

Background: Breastfeeding is an art and a skill which needs to be learnt and mastered. There is no one right position for breastfeeding. Any breastfeeding position that is comfortable for the mother and infant for effective breast milk transfer is an acceptable position. Cross cradle hold works well for Mothers who are breastfeeding for the first time, with latching difficulties, having flat and inverted nipples. Also, it helps in deep latching which helps to improve the level of attachment among new born. Objective of the study was to compare cross-cradle hold and other breastfeeding positions in terms of their effects on weight and length pattern in neonates among primiparous breastfeeding mothers after full-term vaginal delivery.Methods: This prospective cohort study was conducted in the obstetrics and gynaecology department among 240 primipara mothers who delivered vaginally at the same tertiary care institute.Results: Total 50.42% mothers preferred cross-cradle hold breastfeeding position. Neonates of mothers who had adopted cross-cradle hold, had better gain in weight and length after one month.Conclusions: Significantly more gain in weight and length of neonates were observed in those mothers who have adopted cross-cradle breastfeeding position.

A study of correlation between foot length and gestational maturity and anthropometric measurements in neonates

Background: This pinnacle抯 the importance for alternative measurements which predicts birth weight and gestational age (GA). Foot length is a simple measure and does not require expertise. The aim of this study was to study correlation of foot length and GA among preterm, term and post-term neonates.Methods: This study was a prospective observational study done in 155 babies. Anthropometric measurements were taken within the first 24 hours of life. GA estimation was done using modified Ballard score. Foot length, head circumference and chest circumference were measured and noted. Weight of the baby was recorded using electronic weighing scale.Results: Foot length statistically correlated (p<0.05) with GA assessment using NBS, weight, length, head circumference and chest circumference. The highest correlation of foot length in term SGA and term AGA babies for foot length was with head circumference (r=0.74 and 0.64 respectively). In pre-terms, foot length correlated well with head circumference and birth weight (r=0.92, 0.84 and 0.92 respectively). There were no babies in preterm LGA group and post term SGA and LGA group.Conclusions: Foot length also statistically correlated with other parameters like birth weight, length, head circumference and chest circumference.

Study of the Length of time Window in Emotion Recognition based on EEG Signals / Estudio de la Longitud de Ventana de Tiempo en el Reconocimiento de Emociones Basado en Señales EEG

Abstract The objective of this research is to present a comparative analysis using various lengths of time windows (TW) during emotion recognition, employing machine learning techniques and the portable wireless sensing device EPOC+. In this study, entropy will be utilized as a feature to evaluate the performance of different classifier models across various TW lengths, based on a dataset of EEG signals extracted from individuals during emotional stimulation. Two types of analyses were conducted: between-subjects and within-subjects. Performance measures such as accuracy, area under the curve, and Cohen's Kappa coefficient were compared among five supervised classifier models: K-Nearest Neighbors (KNN), Support Vector Machine (SVM), Logistic Regression (LR), Random Forest (RF), and Decision Trees (DT). The results indicate that, in both analyses, all five models exhibit higher performance in TW ranging from 2 to 15 seconds, with the 10 seconds TW particularly standing out for between-subjects analysis and the 5-second TW for within-subjects; furthermore, TW exceeding 20 seconds are not recommended. These findings provide valuable guidance for selecting TW in EEG signal analysis when studying emotions.

Resumen El objetivo de esta investigación es presentar un análisis comparativo empleando diversas longitudes de ventanas de tiempo (VT) durante el reconocimiento de emociones, utilizando técnicas de aprendizaje automático y el dispositivo de sensado inalámbrico portátil EPOC+. En este estudio, se utilizará la entropía como característica para evaluar el rendimiento de diferentes modelos clasificadores en diferentes longitudes de VT, basándose en un conjunto de datos de señales EEG extraídas de individuos durante la estimulación de emociones. Se llevaron a cabo dos tipos de análisis: entre sujetos e intra-sujetos. Se compararon las medidas de rendimiento, tales como la exactitud, el área bajo la curva y el coeficiente de Cohen's Kappa, de cinco modelos clasificadores supervisados: K-Nearest Neighbors (KNN), Support Vector Machine (SVM), Logistic Regression (LR), Random Forest (RF) y Decision Trees (DT). Los resultados indican que, en ambos análisis, los cinco modelos presentan un mayor rendimiento en VT de 2 a 15 segundos, destacándose especialmente la VT de 10 segundos para el análisis entre los sujetos y 5 segundos intrasujetos; además, no se recomienda utilizar VT superiores a 20 segundos. Estos hallazgos ofrecen una orientación valiosa para la elección de las VT en el análisis de señales EEG al estudiar las emociones.

Protocolo de recuperación mejorada después de cirugía (ERAS) atenúa el estrés y acelera la recuperación en pacientes después de resección radical por cáncer colorrectal: Experiencia en la Clínica Universitaria Colombia / Enhanced Recovery After Surgery (ERAS) protocol attenuates stress and accelerates recovery in patients after radical resection for colorectal cancer: Experience at Clínica Universitaria Colombia

Introducción. El conjunto de estrategias de recuperación mejorada después de la cirugía (ERAS, por sus siglas en inglés) constituye un enfoque de atención multimodal y multidisciplinario, cuyo propósito es reducir el estrés perioperatorio de la cirugía, disminuir la morbilidad y acortar la estancia hospitalaria. Este estudio tuvo como objetivo describir los resultados clínicos de pacientes sometidos a cirugía por cáncer colorrectal, identificando las complicaciones principales y los factores perioperatorios relacionados con el alta temprana. Métodos. Se analizaron los pacientes consecutivos sometidos a cirugía colorrectal entre los años 2020 y 2023, todos los cuales siguieron el protocolo ERAS institucional. Se evaluaron las características clínicas, los factores perioperatorios, los desenlaces postoperatorios y la tasa global de adherencia al protocolo. Resultados. Un total de 456 pacientes fueron sometidos a cirugía colorrectal, 51% de sexo masculino, con edad media de 60 años. La mayoría de las intervenciones se realizaron por laparoscopia (78 %), con una tasa de conversión del 14,5 %. Las complicaciones postoperatorias incluyeron fuga anastomótica (4,6 %), sangrado, infección intraabdominal y obstrucción intestinal. La estancia hospitalaria promedio fue de 4 días y la mortalidad del 2,8 %. La tasa global de adherencia al protocolo ERAS fue del 84,7 %. Conclusiones. El enfoque combinado de cirugía laparoscópica y protocolo ERAS es factible, seguro y se asocia con una estancia hospitalaria más corta. La implementación y adherencia al protocolo ERAS no solo mejora los resultados postoperatorios, sino que también resalta la importancia de acceder a datos sólidos, permitiendo mejorar la atención perioperatoria local.

Introduction. The Enhanced Recovery After Surgery (ERAS) protocol is a multimodal, multidisciplinary approach to care, the purpose of which is to reduce the perioperative stress of surgery, decrease morbidity, and shorten hospital stay. This study aimed to describe the clinical outcomes of patients undergoing surgery for colorectal cancer, identifying the main complications and perioperative factors related to early discharge. Methods. Consecutive patients undergoing colorectal surgery between 2020 and 2023 were analyzed, who followed the institutional ERAS protocol. Clinical characteristics, perioperative factors, postoperative outcomes, and overall protocol adherence rate were evaluated. Results. A total of 456 patients underwent colorectal surgery, 51% male, with a mean age of 60 years. Most interventions were performed laparoscopically (78%), with a conversion rate of 14.5%. Postoperative complications included anastomotic leak (4.6%), followed by bleeding, intra-abdominal infection, and intestinal obstruction. The average hospital stay was 4 days and mortality was 2.8%. The overall adherence rate to the ERAS protocol was 84.7%. Conclusions. The combined approach of laparoscopic surgery and ERAS protocol is feasible, safe, and associated with a shorter hospital stay. Implementation and adherence to the ERAS protocol not only improves postoperative outcomes, but also highlights the importance of accessing solid data, allowing for improved local perioperative care.

Quantitative analysis of macular capillaries in diabetic patients using optical coherence tomography angiography / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To quantify early changes of macular capillary parameters in type 2 diabetic patients using optical coherence tomography angiography(OCTA).METHODS: Retrospective case study. A total of 49 healthy subjects, 52 diabetic patients without retinopathy(noDR)patients, and 43 mild nonproliferative diabetic retinopathy(mNPDR)patients were recruited. Capillary perfusion density, vessel length density(VLD), and average vessel diameter(AVD)were calculated from macular OCTA images(3 mm×3 mm)of the superficial capillary plexus after segmenting large vessels and the deep capillary plexus. Parameters were compared among control subjects, noDR, and mNPDR patients. The area under the receiver operating characteristic curve estimated the abilities of these parameters to detect early changes of retinal microvascular networks.RESULTS: Significant differences were found in the VLD and AVD among the three groups(P&#x0026;#x003C;0.001). Compared with the control group, the noDR group had significantly higher AVD(P&#x0026;#x003C;0.05). VLD of both layers in patients of mNPDR group was significant decreased compared with that of noDR group(all P&#x0026;#x003C;0.01). Deep AVD had a higher area under the curve(AUC)of 0.796 than other parameters to discriminate the noDR group from the healthy group. Deep AVD had the highest AUC of 0.920, followed by that of the deep VLD(AUC=0.899)to discriminate the mNPDR group from the healthy group.CONCLUSIONS: NoDR patients had wider AVD than healthy individuals and longer VLD than mNPDR patients in both layers. When compared with healthy individuals, deep AVD had a stronger ability than other parameters to detect early retinal capillary impairments in noDR patients.

Role of spherical aberration and coma in orthokeratology for myopia control / 国际眼科杂志(Guoji Yanke Zazhi)

As a highly prevalent global condition, myopia significantly impacts the ocular health of young individuals in China. Orthokeratology lens, as a rigid corneal contact lens, has demonstrated effective control over the progression of myopia; however, its mechanism of action remains incompletely elucidated. As one of the factors influencing visual acuity, higher-order aberrations will undergo marked changes after orthokeratology, with particular emphasis on the alterations in spherical aberrations and coma. The changes in corneal morphology induced by orthokeratology lead to significant positive increase in both spherical aberration and coma. Furthermore, the elevation of spherical aberration and coma demonstrates a negative correlation with the rate of axial length growth following orthokeratology. The interplay among spherical aberration, coma, defocus, accommodation, astigmatism, and pseudo-accommodation may constitute the underlying mechanism governing the control of myopia through orthokeratology.

Research progress on the stress-strain index of Corvis ST / 国际眼科杂志(Guoji Yanke Zazhi)

Corneal visualization Scheimpflug technology(Corvis ST)is currently the most commonly used clinical device for assessing in vivo corneal biomechanics. The new parameter stress-strain index(SSI)has been a hot topic of clinical research in recent years, which not only directly reflect corneal biomaterial stiffness, but also closely correlates with the progression of certain diseases. SSI was generated based on the predictions of corneal behavior using finite element(FE)numerical modeling to simulate the effects of intraocular pressure and Corvis ST jets. The SSI algorithm does not change with central corneal thickness(CCT), intraocular pressure, or biomechanically corrected intraocular pressure(BIOP), but it is clearly associated with altered collagen fibres in the corneosclera. The principles of SSI, the relationship between age and SSI, the relationship between axial length and SSI, the relationship between myopia and SSI, and the application of SSI are summarized and concluded.

Control effect of high aspherical lenticule in children and adolescents with low myopia / 国际眼科杂志(Guoji Yanke Zazhi)

AIM:To explore the effect of high aspherical lenticule on controlling low myopia.METHODS: Prospective study. A total of 100 patients aged 7 to 12 years old with low myopia who visited our hospital from May 1 to 31, 2022 were collected. They were divided into two groups with 50 cases in each group according to the wishes of patients. The control group was given single vision glasses after optometry, while the study group was given high aspherical lenticule. The myopia progression(absolute value), axial length(AL)growth, transition rate to moderate myopia, and AL negative growth rate over 6 mo and 1 a were compared between the two groups.RESULTS: The myopia progression and the AL growth of study group was lower than that of the control group after 6 mo and 1 a(all P&#x0026;#x003C;0.001).The negative growth rate of AL after 6 mo of treatment was significantly higher than that of the control group(P&#x0026;#x003C;0.001). The transition rate to moderate myopia between the two groups was not statistically significant(P=0.62); while the transition rate to moderate myopia in the study group was significantly lower than that in the control group after wearing lens for 1 a(P&#x0026;#x003C;0.001), and there was no statistically significant difference in AL negative growth rate between the two groups(P=0.12). Compare with single vision glasses, high aspherical lenticule achieved an 88.2% control rate for low myopia progression over 6mo and a 90.0% control rate of AL growth. The control rate for low myopia to moderate myopia was 66.7%; while the control rate of myopia progression growth was 75.6% after wearing lens for 1a, the control rate of AL growth was 69.2%, and the control rate of the transition rate to moderate myopia was 88.9%.CONCLUSION: For children and adolescents aged 7 to 12 with low myopia, high aspherical lenticule was more effective than single vision glasses in controlling myopia, making it one of the optimal choices for myopia control.