Active clinical trials for "Dehydration"

The study will aim to evaluate the correlation between changes in ultrasound velocity and measures of hydration status including urine specific gravity, plasma and urine osmolality in male and female young adults after undergoing an acute dehydration and rehydration. The study will also test the hypothesis that body dehydration is a generalized physiological process equally affected all body muscles by comparing the data obtained on calf and biceps muscles.

The purpose of this study is to examine if a chronic dehydration is a risk factor for the developement or progression of some forms of glaucoma.

Objective: Although approximately 9% of patients presenting to a Pediatric Emergency Department (ED) are dehydrated, there is no reliable method to measure objectively the degree of intravascular dehydration. Respiratory changes in Inferior Vena Cava (IVC) diameter have been shown to predict volume status in adults. Previous research has demonstrated correlation between IVC diameter and volume status in children undergoing hemodialysis. Other studies have shown that IVC diameter in children can be sonographically measured rapidly and accurately by ED physicians. If we can establish that IVC diameter predicts volume status in dehydrated children, this tool could assist the ED physician in rapid diagnosis and prompt resuscitation without the need to wait for blood or urine tests. In this study we use the "dehydrated patient" as a model for hypovolemia, with the idea that the data could ultimately be used in the setting of any hypovolemic state. We aim to evaluate whether ultrasound of the pediatric IVC can be used to reliably assess volume status. Methods: This is a prospective cohort study. Pediatric ED patients ranging in age from 1 to 41 months were assessed by a Pediatric emergency physician and stratified as either clinically euvolemic or hypovolemic. After consent was obtained, one of three Emergency Medicine Residents performed trans-abdominal sonographic measurements of the IVC diameter. Measurements of the IVC diameter just caudal to the insertion of the hepatic veins were obtained in a longitudinal orientation.

Considering the physiological changes in fluid and electrolyte balance and providing proper support are one of the important aspects of neonatal intensive care. Maintenance intravenous fluids are designed to maintain homeostasis when a patient is unable to uptake required water, electrolytes, and energy. Hypotonic fluids are still the most commonly prescribed IV fluids for pediatric hospitalized patients. However, previous studies, including children older than one month of age revealed that traditionally used hypotonic fluids may lead to hyponatremia. Because of the absence of evidence-based data, there is currently no clear consensus on the optimal composition of maintenance intravenous fluid therapy in newborns, leading to wide practice variation. The National Clinical Guideline Center (NICE) 2015 recommends the use of isotonic fluids in term newborn infants and some newborn centers has begun to use isotonic fluids since guidelines recommendations. Since the publication of the NICE guideline, no studies have addressed this topic. In this prospective, observational , multicentric study, conventional hypotonic fluids containing sodium chloride (NaCl) < 130 mmol/L compared with isotonic fluids (containing NaCl between 131-154 mmol/L) in terms of the risk of hyponatremia, hypernatremia, plasma sodium (pNa) level change, treatment morbidities, hospitalization duration and mortality.

Capillary refill is used clinically to assess multiple things in children. This is a prospective observational study of the correlation between capillary refill time and degree of dehydration in children seen in a pediatric ED.

The aim of the study is to determinate the prevalence of moderate dehydration among children aged 9 to 11 who are going to school.

The study will aim to determine normal daily variation of the individual hydration level in longitudinal study on elderly in assisted living facility and assess a range of variation of individual hydration baselines for elderly in a normal physiologically hydrated state.

Acute gastroenteritis is a common cause of hospital admission and health office visits and have a huge burden on the economy of developing countries. The investigators proposed this observational prospective study during summer period in a community and tertiary care hospital in a rural area of Lebanon to investigate the etiologies and age distribution of admitted cases to general pediatric floor from the age of 1 month up to the age of 14 years.

Dental restorations should mimic sound tooth structures in terms of color and optical properties especially in the anterior region. However, closely matching natural teeth with a restoration can be one of the most challenging procedure in restorative dentistry. Shade matching includes color determination, color communication with dental lab and color reproduction with dental restoration for indirect techniques or color determination and selection of the appropriate material and application method when using direct techniques. Therefore color selection is the first critical step in the restoration procedures and should be carried out properly. Color determination must be carried out before any of the restorative procedures, isolation or impression. Most of the dental procedures cause dehydration and increase the opacity of the enamel and teeth appear whiter. Few clinical and in vitro studies evaluated the degree of color change after dehydration and rehydration periods. However, inconsistencies exist between studies in terms of color change degree and duration of return to appreciable values. The aim of the present study was to evaluate the degree of color change in half an hour dehydration period of the teeth and to determine if color return to baseline after half an hour or 24 hours. According to the null hypotheses of the study: There is no perceptible difference occur after tooth dehydration. Tooth color will not return to baseline values after half an hour or 24 hours rehydration periods.

Study will verify ability of infant Hydration Monitor (IHM) to assess changes of hydration status in newborns and infants by means of ultrasound velocity measurements through muscle tissues. Changes of tissue hydration will be followed during first days of life in newborns and in acute diarrhea in small children during re-hydration therapy. Weighting and clinical dehydration symptoms will be used as controls.