Erosión del esmalte dental en dientes expuestos a bebidas de origen industrial. Estudio piloto in vitro

RESUMEN: Objetivo: determinar el efecto erosivo sobre el esmalte dental de dientes humanos extraídos, después de la exposición a bebidas industriales distribuidas comercialmente en Cartagena, Colombia. Materiales y métodos: estudio experimental in vitro en 26 dientes humanos extraídos con esmalte dental sano, distribuidos aleatoriamente en doce grupos experimentales que fueron expuestos a bebidas industriales comercializadas en la ciudad de Cartagena. Las bebidas fueron expuestas durante 7 días, dos veces al día. Para determinar el efecto erosivo, se valoró pH de la bebida, pérdida de peso de los dientes expuestos y aspecto clínico del esmalte dental posterior a la exposición. Resultados: todas las bebidas evaluadas presentaron pH<4.5, siendo la Coca Cola® y jugo Hit® naranja las que exhibieron el pH más bajo. Todas las bebidas causaron desmineralización del esmalte, sin embargo, las que causaron mayor pérdida de peso fueron Speed Max®, Vive 100® y Coca-Cola®. Conclusiones: Speed Max® y Coca-Cola® fueron las bebidas que generaron mayor efecto erosivo sobre la estructura dental, por lo cual es necesario informar a la población los riesgos para la salud oral que se derivan del consumo desmedido de estas bebidas.

ABSTRACT: Objective: to determine the erosive effect on dental enamel of extracted human teeth, after exposure to industrial drinks distributed commercially in Cartagena, Colombia. Materials and methods: experimental in vitro study in 26 human teeth extracted with healthy dental enamel, randomly distributed in twelve experimental groups that were exposed to industrial beverages commercialized in the city of Cartagena. The teeth were exposed to the drinks for 7 days, twice a day. To determine the erosive effect, pH of the drink, weight loss of the exposed teeth and clinical appearance of the dental enamel after exposure were evaluated. Results: all the evaluated drinks presented pH <4.5, being Coca Cola® and Hit® Orange Juice the ones that exhibited the lowest pH. All the drinks caused enamel demineralization, however, the ones that caused the most weight loss were Speed ​​Max®, Vive 100® and Coca Cola®. Conclusions: Speed Max® and Coca Cola® were the drinks that generated the greatest erosive effect on the dental structure. Therefore, it is necessary to inform the population about the risks to oral health derived from the excessive consumption of these drinks.

The Hydration Status of Female Collegiate Soccer Players Over Consecutive Training and Match Days / Estado de Hidratación de Jugadoras de Fútbol Universitarias Durante Días de Entrenamiento y Partidos Consecutivos

Abstract Purpose: Hydration has been shown to play a pivotal role in sport. Soccer is a team sport in which the integrity of all players is vital for team performance; thus, individual player hydration status is important. The primary aim of this study was to investigate the hydration status of female collegiate soccer players during regular season. Methods: Sixteen collegiate female soccer players (age: 20.4 ± 0.8 years; height: 163.6 ± 6.9 cm; weight: 65.3 ± 12 kg) provided urine over 9 days to monitor their hydration status. Hydration was determined by urine specific gravity (Usg). Usg was analyzed in the morning (AM) and in the afternoon before practice/game (PM). Results: All 16 players were at least minimally hypohydrated (Usg > 1.010) in the AM on 5 of the 9 days tested. Players had significantly higher Usg values in the AM as compared to PM (F(1,250) = 23.09; p < 0.0001); however, there was no significant time*day interaction (F(1,250) = 1.98; p = 0.16). Conclusion: Data show a high prevalence of hypohydration occurring in this specific population. This sub-optimal hydration status could be a cause for concern in terms of overall performance. Efforts should be made to integrate hydration interventions and daily monitoring to minimize hypohydration in players.

Resumen Propósito: Se ha demostrado que la hidratación juega un papel fundamental en el deporte. El fútbol es un deporte de equipo en el que la integridad de todos los jugadores es vital para su rendimiento; por lo tanto, el estado de hidratación de cada jugador es importante. El objetivo principal de este estudio fue investigar el estado de hidratación de las jugadoras universitarias de fútbol durante la temporada regular. Métodos: Dieciséis jugadoras universitarias de fútbol (edad: 20.4 ± 0.8 años; estatura: 163.6 ± 6.9 cm; peso: 65.3 ± 12 kg) proporcionaron muestras de orina durante 9 días para controlar su estado de hidratación, la cual se determinó por la gravedad específica de la orina (Usg). La Usg se analizó en la mañana (AM) y en la tarde antes del entrenamiento o el juego (PM). Resultados: Las 16 jugadoras estaban al menos mínimamente hipohidratadas (Usg > 1.010) en la AM en 5 de los 9 días medidos. Las jugadoras tuvieron valores Usg significativamente más altos en AM en comparación con PM (F (1,250) = 23.09; p < 0.0001); sin embargo, no hubo interacción significativa de tiempo * día (F(1,250) = 1.98; p = 0.16). Conclusión: los datos muestran una alta prevalencia de hipohidratación en esta población específica. Este estado de hidratación subóptimo podría ser motivo de preocupación en términos de rendimiento general. Se deberían hacer esfuerzos para integrar las intervenciones de hidratación y el monitoreo diario para reducir al mínimo la hipohidratación en las jugadoras.

Resumo Objetivo: Foi demonstrado que a hidratação desempenha um papel fundamental no esporte. O futebol é um esporte coletivo no qual a integridade de todos os jogadores é vital para o desempenho da equipe; portanto, o estado de hidratação de cada jogador é importante. O objetivo principal deste estudo foi investigar o estado de hidratação de universitárias jogadoras de futebol do sexo feminino durante a temporada regular. Métodos: Dezesseis universitárias jogadoras de futebol (idade: 20,4 ± 0,8 anos; altura: 163,6 ± 6,9 cm; peso: 65,3 ± 12 kg) forneceram amostras de urina por 9 dias para monitorar seu estado de hidratação. A hidratação foi determinada pela gravidade específica da urina Usg. Sua Usg foi analisado pela manhã (matutino) e à tarde (vespertino) antes do treino ou jogo. Resultados: As 16 jogadoras estavam minimamente hipohidratadas (Usg > 1.010) no período matutino em 5 dos 9 dias medidos. As jogadoras apresentaram valores de Usg significativamente maiores no período matutino em comparação ao vespertino (F (1.250) = 23,09; p <0,0001); no entanto, não houve interação tempo * dia significativa (F (1.250) = 1,98; p = 0,16). Conclusão: os dados mostram uma alta prevalência de hipohidratação nesta população específica. Este estado de hidratação abaixo do ideal pode ser uma preocupação em termos de desempenho geral. Devem ser feitos esforços para integrar intervenções de hidratação e monitoramento diário para minimizar a hipohidratação em jogadoras.

Association between dietary intake, physical activity and stress level with constipation among undergraduate students

@#Introduction: Constipation is one of the most common health problems among university students. This study aims to determine the association between sociodemographic characteristics, dietary intake, physical activity, and stress level with constipation among undergraduate students. Methods: The study was a crosssectional study and the participants comprised of 140 undergraduate students (27.9% males and 72.1% females). A 3-day dietary record was obtained to determine energy, fibre and fluid intakes, while physical activity was determined using the International Physical Activity Questionnaire. Stress level and constipation were assessed using the Cohen’s Perceived Stress Scale and Agachan’s Constipation Score System Questionnaire, respectively. Data were analysed using IBM SPSS Statistics version 23. Multivariate linear regression analysis was done to determine factors that were associated with constipation. Results: Mean age of the participants was 20.9±1.5 years old and majority were third year students (32.1%). Mean intakes of energy, dietary fibre, and fluids per day were 1567±438kcal, 5.6±3.5g, and 2301±946ml, respectively. The median score for physical activity was 1135.5 METminutes/week. Most of the participants (77.1%) had a high or a very high stress level and 64.3% had slight constipation. Age, dietary fibre, fluid, energy, and perceived stress scale explained a significant amount of the variance in the occurrence of constipation [F(6.133)=16.373, p<0.001, R2=0.425, R2Adjusted=0.399]. Conclusion: Age, energy, fluid and fibre intakes, as well as perceived stress were factors that were associated with constipation among undergraduate students. Therefore, undergraduate students should be encouraged to practise a healthy lifestyle to modify these identified risk factors.

Fluid intake and central venous pressure within 4 days after birth in very low birth weight premature infants complicated with bronchopulmonary dysplasia / 中国新生儿科杂志

Objective To study the characteristics of fluid intake and central venous pressure (CVP) within 4 days after birth in very low birth weight (VLBW) premature infants complicated with bronchopulmonary dysplasia (BPD).Method From February 2015 to March 2019,VLBW preterm infants without serious complications were enrolled in two hospitals.Their CVP were measured every 4 ～ 6 hours after birth.They were assigned into BPD group and non-BPD group,and the fluid intake and CVP within 4 days after birth were compared between these two groups.Result A total of 45 VLBW preterm infants were included,including 17 in the BPD group and 28 in the non-BPD group.The fluid intake in the BPD group showed no significant difference with the non-BPD group within 4 days after birth (P ＞ 0.05).No significant correlation existed between the mean liquid intake and the mean CVP in 1 ～ 4 days after birth (r =0.093,P=0.542).From day1 to day4,the CVPs of the BPD group were (3.97 ± 0.68),(4.49 ± 0.75),(4.55 ± 0.66),(4.02 ± 1.05) cmH2O,and the non-BPD group were (3.66 ± 1.09),(3.96 ±0.76),(3.81 ± 0.69),(3.91 ± 0.65) cmH2O.The differences between the BPD group and the nonBPD group were statistically significant (P ＜ 0.05).The CVP of the BPD group was increasing from day 2 to day 3 (P ＜ 0.05).Conclusion VLBW premature infants complicated with BPD may have higher CVP at the early stage of life,which may not be related with the fluid intake.

Caracterización del consumo de bebidas en habitantes de la ciudad de Medellín, Colombia / Characterization of beverage consumption in inhabitants of Medellin City, Colombia

RESUMEN Evaluar el consumo de bebidas y la cantidad ingerida durante el día, reviste importancia para los profesionales de la salud, quienes participan en la educación y diseño de políticas en alimentación y nutrición, relacionadas con el bienestar de la comunidad. El objetivo del estudio fue comparar entre sexos, el gusto por el consumo de diferentes tipos de bebidas y la cantidad consumida por día. El estudio se realizó en una muestra representativa de los habitantes de la ciudad de Medellín, Colombia, entre los 18 y 50 años de edad. Se utilizó análisis multivariado de la varianza (MANOVA) con contraste canónico de tipo ortogonal, análisis de correspondencia múltiple con clasificación jerárquica indexada, análisis de frecuencias unidimensional y bidimensional. Se detectó diferencia significativa entre sexos en el gusto por consumir bebidas aromáticas y gaseosas dietéticas (p< 0.05), no se detectó diferencia (p> 0.05) en la cantidad de líquido consumido al día según sexo. La principal conclusión radica en que a más del 80% de los indagados les gusta consumir agua de manera frecuente, afirman conocer las recomendaciones de consumo de este líquido al día y los beneficios que aportan para el mantenimiento de la salud. El tamaño de la muestra utilizado fue de 322 personas.

ABSTRACT Evaluating daily beverage consumption is important for health professionals who participate in education and policy design related to food, nutrition, and community welfare. The objective of the study was to compare, between sexes, the preference for the consumption of different types of drinks and daily consumption. A study with a representative sample of the inhabitants of the city of Medellín, Colombia, between 18 and 50 years of age, was conducted. Multivariate analysis of variance (MANOVA) with orthogonal canonical contrast, multiple correspondence analysis with hierarchical indexed classification, and one-dimensional and two-dimensional frequency analysis was used. A significant difference between sexes was detected in the taste for consuming aromatic beverages and diet sodas (p<0.05), no difference was detected (p>0.05) in daily consumption of liquid according to sex. The main conclusion was that more than 80% of respondents liked to consume water on a frequent basis, reported knowing the recommendations for daily consumption of this liquid and the benefits it provided for maintaining health. The sample size was 322 persons.

Effects of Temperature of Drinking Water on Regulation of Body Temperature in Humans / 日本温泉気候物理医学会雑誌

  A person regulates body temperature by outside and inside heat from change of environmental temperature. One of the inside heats includes drinking water. However, the effect of drinking water temperature on body temperature is not clear. The purpose of this study was to examine how water temperature influences the change in body temperature. The study participant were 13 men (average age, 21.3 ± 0.8 years), and they drank water at 3°C, room temperature, and 60°C; in addition, one more task was not to drink water. We measured tympanic temperature using a thermometer, skin blood flow using a laser Doppler flow meter, and sweating rate using the capsule ventilation method. The mean skin temperature was measured at seven body points with a thermistor and calculated. Tympanic temperature of drinking water at 3°C and 60°C was significantly in comparison with other conditions. As for skin blood flow between water temperature at 60°C and 3°C, sweating rate between water temperature at 60°Cand other conditions, and mean skin temperature between water temperature at 3°C and other conditions significant differences were recognized. It is thought that the response to early change to drinking water at different temperatures is by responses of thermo-receptors and subsequently by the thermal energy of the drinking water.

Effects of Temperature of Drinking Water on Regulation of Body Temperature in Humans / 日本温泉気候物理医学会雑誌

  A person regulates body temperature by outside and inside heat from change of environmental temperature. One of the inside heats includes drinking water. However, the effect of drinking water temperature on body temperature is not clear. The purpose of this study was to examine how water temperature influences the change in body temperature. The study participant were 13 men (average age, 21.3 ± 0.8 years), and they drank water at 3°C, room temperature, and 60°C; in addition, one more task was not to drink water. We measured tympanic temperature using a thermometer, skin blood flow using a laser Doppler flow meter, and sweating rate using the capsule ventilation method. The mean skin temperature was measured at seven body points with a thermistor and calculated. Tympanic temperature of drinking water at 3°C and 60°C was significantly in comparison with other conditions. As for skin blood flow between water temperature at 60°C and 3°C, sweating rate between water temperature at 60°Cand other conditions, and mean skin temperature between water temperature at 3°C and other conditions significant differences were recognized. It is thought that the response to early change to drinking water at different temperatures is by responses of thermo-receptors and subsequently by the thermal energy of the drinking water.

Water and fluid intake in the prevention and treatment of functional constipation in children and adolescents: is there evidence? / Ingestão de água e líquidos na prevenção e no tratamento da constipação intestinal funcional em crianças e adolescentes: existem evidências?

Abstract Objective: To study the evidence on the role of water and fluid intake in the prevention and treatment of functional intestinal constipation in children and adolescents. Source of data: A search was carried out in the Medline database (between 1966 and 2016) for all published articles containing the following words: constipation, water, and fluids, published in Portuguese, English, and Spanish. All original articles that assessed children and adolescents were selected by title and abstract. The references of these articles were also evaluated. Synthesis of data: A total of 1040 articles were retrieved. Of these, 24 were selected for reading. The study included 11 articles that assessed children and adolescents. The articles were divided into two categories, those that evaluated water and fluid intake as a risk factor for intestinal constipation and those that evaluated their role in the treatment of intestinal constipation. Five articles were included in the first category. The criteria for assessing fluid intake and bowel rhythm were different in each study. Three studies demonstrated an association between low fluid intake and intestinal constipation. Regarding treatment, five articles with heterogeneous methodologies were found. None of them clearly identified the favorable role of fluid intake in the treatment of intestinal constipation. Conclusion: There are few articles on the association between fluid intake and intestinal constipation. Epidemiological evidence indicates an association between lower fluid intake and intestinal constipation. Further clinical trials and epidemiological studies that consider the international recommendations for fluid intake by children and adolescents are required.

Resumo Objetivo: Estudar as evidências sobre o papel do consumo de água e líquidos na prevenção e no tratamento da constipação intestinal funcional em crianças e adolescentes. Fontes de dados: Foram pesquisados na base de dados do Medline (entre 1966 e 2016) todos os artigos publicados com as seguintes palavras: constipação, água e líquidos, nos idiomas português, inglês e espanhol. Foram selecionados, pelo título e resumo, todos os artigos originais com crianças e adolescentes. As referências desses artigos também foram avaliadas. Síntese de dados: Foram encontrados 1.040 artigos. Desses, 24 foram selecionados para leitura. Foram incluídos 11 artigos que estudaram crianças e adolescentes. Os artigos foram distribuídos em duas categorias, os que avaliaram o consumo de água e líquidos como fator de risco para constipação intestinal e os que avaliaram o seu papel na terapêutica da constipação intestinal. Cinco artigos se enquadraram na primeira categoria. Os critérios para avaliar consumo de líquidos e ritmo intestinal foram diferentes em cada estudo. Três estudos demonstraram relação entre baixo consumo de líquidos e constipação intestinal. Quanto ao tratamento, foram encontrados cinco artigos com metodologias heterogêneas. Em nenhum deles foi possível identificar com clareza o papel favorável do consumo de líquidos no tratamento da constipação intestinal. Conclusão: Existem poucos artigos sobre a relação entre consumo de líquidos e constipação intestinal. Evidências epidemiológicas indicam associação entre menor consumo de líquidos com constipação intestinal. São necessários outros ensaios clínicos e estudos epidemiológicos que levem em consideração as recomendações internacionais para consumo de líquidos por crianças e adolescentes.

Effect of mind mapping-oriented health education on patient's fluid intake during hemodialysis intervals / 现代临床护理

Objective To evaluate the effect of mind mapping-oriented health education on patient's fluid intake during hemodialysis intervals. Methods From June 2015 to April 2016, 72 patients with poor compliance with fluid intake were randomly divided into control group (n=36) and observation group (n=36). In the control group, routine health education was used and the observation group was treated with mind mapping-oriented health education. The two groups were compared before intervention and 6 months after that in terms of compliance with fluid intake and daily fluid intake, ultrafiltration volume and body weight gain/dry weight ratio and incidence of complications. Results In the observation group, the fluid intake compliance, daily fluid intake, ultrafiltration volume and body weight gain/dry weight ratio 6 months after intervention were superior to those of the control group (all P<0.05). The incidences of complications such as hypotension, hypertension, muscle spasms and cardiac arrhythmia were also significantly lower than those of the control group (P<0.05). Conclusion The health education based on mind mapping is helpful to enhance the degree of cognition of fluid intake compliance, improve self-efficacy of chronic diseases, control the growth of body weight during dialysis and reduce the incidence of complications.

Qualitative research on the non-compliance of fluid intake among maintence hemodialysis patients / 现代临床护理

Objective To explore the results of non-compliance of fluid intake in maintence hemodialysis patients.Methods The qualitative phenomenological research method was adopted in this study.Self-structured in-depth interviews were conducted with 13 maintenance hemodialysis patients.Data were analyzed by content analysis.Result Four themes were extracted including allotrigeusia,have a smattering of fluid intake knowledge,self-condemned and guilty,muddling along.Conclusions Fuild restriction is the most difficuilt prescribed treatment schedule among maintence hemodialysis patients.Nurses should pay attention to those people and provide multilevel,continual,individual and comprehensive measures.

Estado de hidratação em ciclistas após três formas distintas de reposição hídrica / Hydration status in cyclists after three different forms of fluid replacement

Atletas cuja perda de suor excede a ingestão de líquidos tornam-se desidratados, especialmente, durante o treino ou competição em um ambiente quente e úmido. A desidratação pode comprometer o desempenho atlético e aumentar o risco de lesões por esforço no calor. Assim, o objetivo desse estudo foi verificar o estado de hidratação de ciclistas após sessões de treinamento com diferentes formas de reposição hídrica na cidade de Aracaju. Oito ciclistas do sexo masculino (33,1 ± 3,3 anos) realizaram, durante um período de 12 dias, três sessões de treinamento(s) controlado(s) (TC). Antes de cada dia de TC, os atletas foram submetidos a uma dieta líquida e mantiveram sua dieta e treinamento habitual. Além disso, em cada TC, o grupo de atletas foi submetido a diferentes formas de reposição de líquidos, baseada pela maneira de consumo, tal como: sem ingestão de líquidos (GC), com ingestão de água (GA) e com consumo de bebida esportiva (GS). O estado de hidratação foi verificado pela cor da urina e porcentual da perda de massa corporal. Com base na cor da urina, GC, GA e GS não mostraram diferença significativa na taxa do estado de hidratação, nem pela manhã (4,71 ± 0,47; 5,75 ± 0,47; 5,0 ± 0,0; P = 0,143; respectivamente) nem nos momentos pré e pós em cada TC (P = 0,786). No entanto, em relação à porcentagem de perda de massa corporal entre os grupos, o grupo GS teve uma perda menor (- 1,20 ± 0,18 %) com diferença significativa de GC (- 2,22 ± 0,13 %; P = 0,001) e GA (- 1,81 ± 0,13 %; P = 0,047). Desta forma, conclui-se que a água não foi capaz de promover uma adequada hidratação, mas a bebida esportiva parece oferecer uma melhor reposição hídrica.

Athletes whose sweat loss exceeds fluid intake become dehydrated, especially, during training or competition in a hot and humid enviroment. Dehydration can compromise athletic performance and increase the risk of exertional heat injury. Thus, the aim of this study was to verify the state of hydration in cyclists after training sessions with different forms of fluid replacement in the city of Aracaju. Eight male cyclists (33.1 ± 3.3 years) performed, for a period of 12 days, three sessions of controlled training (TC). Before each day’s TC, the athletes were submitted to a liquid diet and maintained their habitual diet and training. Furthermore, in each TC, the group of athletes was submitted to different forms of fluid replacement, based by way of consumption, such as: no fluid intake (GC), water intake (GA) and sports drink consumption (GS). The hydration status was verified by urine color changes and percentage of body mass loss. Based on the color of urine, GC, GA and GS showed no significant difference in the rate of hydration status, or in the morning (4.71 ± 0.47; 5.75 ± 0.47; 5.0 ± 0.0; P = 0.143; respectively) or pre and post TC (P = 0.786). However, regarding the percentage of body mass loss between groups, the GS group had a smaller loss (- 1.20 ± 0.18 %) with significant difference from GC (- 2.22 ± 0.13 %; P = 0.001) and GA (- 1.81 ± 0.13 %; P = 0.047). In conclusion, the water has not been able to promote hydration, but the drink seems to offer a better replacement.

Self-efficacy training on fluid intake in maintenance hemodialysis patients / 中国实用护理杂志

Objective To examine the effectiveness of self-efficacy training on fluid intake in maintenance hemodialysis patients.Methods Fifty-four hemodialysis patients participated in the study.The intervention was based on Bandura's self-efficacy theory.The outcome measure was self-efficacy for managing chronic disease,the mean interdialysis weight gain,dialysis-related complications and patient satisfaction.Data were collected at baseline and 3 months after the intervention.Results The mean score of selfefficacy,the mean interdialysis weight gain,dialysis-related complications and patient satisfaction after the intervention were all statistically significant compared with those bcfore the intervention.Conclusions The study supports the effectiveness of the self-efficacy training in improving the fluid intake compliance in maintenance hemodialysis patients.So it is worth being popularized in clinic.

Total fluid intake, urination frequency and risk of bladder cancer: a population-based case-control study in urban Shanghai / 中华流行病学杂志

Objective To evaluate the association between total fluid intake and the time of urination per day and the risk of bladder cancer. Methods A population-based case-control study was conducted in urban Shanghai, China, during January 1996 to December 1998. The study included 608 incident cases of bladder cancer and 607 age- and sex-matched controls. Unconditional logistic regression models were used to estimate the odds ratios(ORs)and their corresponding 95%confidence intervals(95%CIs)for bladder cancer associated with frequency of urination, after adjusted for age, gender, smoking status, history of occupation with high risk, history of bladder infections, body mass index and other confounding factors. The level of statistical significance was set at 0.05(two-sided). Results No significant trend was observed for the association between total fluid intake, time of nighttime urination and the risk of bladder cancer. Increasing time of urination during daytime was associated with decreased risk of bladder cancer(P for trend=0.014). ORs(95%CIs)for subjects who voided 4 times, 5 times and 6 or more times per day[0.72(0.49-1.05),0.60(0.41-0.87)and 0.62(0.43-0.90), respectively], when compared with those with less than 4times per day after adjustment of confounding factors. Data showed that smokers and nonsmokers who voided at least 6 times per day had the ORs of 0.72(95%CI: 0.45-1.15)and 0.46(95%CI:0.25-0.87)when compared to their counterparts who voided 3 times or less per day during the daytime. Subjects who urinated at least 6 times per day and consumed more than 1500 ml of total fluid per day experienced a significant 57% reduction in risk compared to subjects who urinated 3 times or less and consumed less than 750 ml of total daily fluid intake. Conclusion Increased urination frequency and total fluid intake, especially among those who never smoked might be associated with a reduced risk of bladder cancer.

Association between fluid intake during the first ten days of life and risk of chronic lung disease in very low birth weight infants / 中国小儿急救医学

Objective To demonstrate the association between fluid intake and sodium intake during the first 10 days of life and the risk of chronic lung disease (CLD) in very low birth weight (VLBW) infants.Methods A retrospective analysis of data from VLBW infants enrolled in the Neonatal Department of our hospital; 130 infants with birth weight between 790 and 1 470 g were randomized, among which 12 infants was diagnosised CLD. The daily fluid intake and sodium intake during the first 10 days of life were compared between the infants without CLD and those who developed CLD. Demographic and clinical neonatal variables were also compared. Results 118 infants survived without CLD and 12 infants developed CLD. Analysis showed that the daily fluid intakes were higher (day 2～10) and weight loss less (day 6～9) in the group of infants who developed CLD. In addition, the daily sodium intakes were also higher (day 2～6) in infants who developed CLD. Conclusion In the VLBW infants treated during the post surfactant era, higher fluid or sodi-um intake during the first 10 days of life were associated with an increased risk of CLD. The finding suggests that careful attention to fluid balance might be an important means to reduce the incidence of CLD.

A Study on Fluid Intake among Nursing Home Residents / 간호학회지

PURPOSE: The purposes of this study were to examine the amount of daily fluid intake among nursing home residents and to explore the caregiver's perceived barriers to elderly's fluid intake. METHOD: Data was collected from 111 nursing home residents and 64 caregiver's in 4 nursing homes. A random, non-consecutive three days of 24 hour fluid intake was measured and recorded. The caregiver's perceived barriers to elderly's fluid intake was assessed using a structured questionnaire. RESULTS: The average amount of daily fluid intake was 1,035(SD=359)ml with the range of 210ml to 2,050ml. About 52% (n=58) of the subjects had a less than adequate fluid intake. The amount of daily fluid intake was significantly associated with age, mental status, physical functioning, and the number of oral medications ordered. The most frequently mentioned caregiver's perceived barrier was elderly's concern about incontinence with increased fluid intake. CONCLUSION: Inadequate fluid intake among nursing home residents is prevalent. To enhance adequate hydration of nursing home residents, an institution wide nursing intervention is necessary.

Age-Related Differences in Sweat Loss and Fluid Intake During Sports Activity in Summer / 体力科学

In this study, we investigated total sweat rate per unit area of body surface per hour (TSR), the percentage of total sweat loss to initial body weight (%TSL) and the percentage of fluid intake volume to total sweat loss (%FIV) in children (during baseball or basketball practice), young adults (during softball or baseball practice), and the elderly (during gateball practice) in summer. During the practice all participants were given access to drink sports drink or Japanese tea <I>ad libitum</I>. In the basketball group of children no sex difference was observed in TSR, %TSL and %FIV. Although TSR and %TSL in the baseball group of children were significantly higher than in the basketball group due to a higher WBGT, there was no group difference for %FIV. Children drank sports drinks (with carbohydrate-electrolyte) of the similar volume with total sweat loss. The baseball group of children showed a significantly greater %FIV compared to the young adult group regardless of simi lar %TSL, when they drank sports drinks. Children showed a significantly higher %FIV in sports drinks than in Japanese tea, whereas the %FIV of young adults was not affected by the type of beverage. The TSR, %TSL and %FIV of the elderly group were significantly lower than in young adults and children. These results suggest that children can prevent voluntary dehydration by con-suming sports drinks with carbohydrate-electrolyte <I>ad libitum</I> regardless of sex and WBGT, and that periodic drinking should be actively encouraged for the elderly because of their blunted rehydration ability, to prevent heat disorders during sports activity in summer.

Effects of Preoperative NPO and Oral Fluid on Gastric Fluid Volume and pH / 대한마취과학회지

BACKGROUND: To reduce the risk of Mendelson's syndrome, it is customary to fast patients for 8 hours before anesthesia. However preoperative fast is unpleasant for patients, who complain frequently of thirst and dry mouth, and this conventional fast may be over-cautious. We have studied the effect of ingestion of barley tea, a Korean popular beverage, 3 hours before anesthesia on gastric contents (volume and pH), blood sugar level, thirst, and anxiety. METHODS: We studied prospectively 284 adult patients undergoing elective surgery. The patients in the control group (n=142) fasted for at least 8 hours, and those in the experimental group (n=142) received 250 ml of barley tea 3 hours before anesthesia. On arrival in the operating room, subjects were asked to assess thirst and anxiety. After induction of anesthesia, gastric contents were aspirated via 18 French Salem sump tube and gastric volume, pH and blood sugar level were measured. RESULTS: There were no statistically significant differences in gastric fluid volume and pH and blood sugar level between control and experimental groups. However, patients in experimental group complained of less thirst than those in control group. CONCLUSIONS: This study demonstrates that in adult patients undergoing elective surgery, allowing patients to drink 250 ml of barley tea until 3 hours before anesthesia may relieve patients from thirst without compromising safety.