Effects of Dehydration on Neuromuscular Performance and Sympathetic Control of Cardiovascular Function...
Dehydration HypertonicIsotonic DehydrationThe mechanism(s) by which dehydration (both intra- and extracellular) impairs performance are still poorly described. A loss of volume results in increased occurrence of orthostatic intolerance, including dizziness, fatigue, headaches and related symptoms with upright posture. Any of these symptoms can contribute to decreased performance in maneuvers performed in the upright posture, which includes many military tasks. Thus, loss of volume challenges the cardiovascular and blood pressure responses to systemic whole body endurance exercise, while osmolality is the stimulus for intracellular dehydration that may impair local muscle force production by impairing contractile function, neural signaling, or both. In this study, we will compare how both types of dehydration affect MSNA and CAC. The results of this study will provide mechanistic insight for how dehydration (intra- or extracellular) impairs systemic whole body and local small muscle performance in vivo. This Basic Science study seeks to understand how volume and osmolality impact MSNA and CAC as a basis for improving potential countermeasures, such as a more optimally formulated rehydration beverage. Therefore, this study directly complements Task Area T10 (Hot Weather Operations and Hydration: Injury and Performance Optimization) and impacts virtually all 14 Military Operational Medicine Research Program Drivers.
IV Glucose for Dehydration Treatment
DehydrationTo determine whether the addition of dextrose to IV fluids in the treatment of gastroenteritis leads to a decrease in serum ketones. Secondarily, the clinical benefits of dextrose containing fluids in the treatment of gastroenteritis will be assessed.
Ondansetron Administration to WELL Children With Gastroenteritis Associated Vomiting in EDs in Pakistan...
DehydrationGastroenteritis2 moreThe primary objective is to determine if the administration of a single dose of oral ondansetron (an anti-vomiting medication), compared to placebo, results in a reduction in intravenous (IV) rehydration therapy in children presenting for emergency department care with vomiting and diarrhea in Pakistan.
Study of Subcutaneous Rehydration With Recombinant Human Hyaluronidase for Infants and Children...
DehydrationThe aim of the study is to evaluate the safety, effectiveness and ease of use of subcutaneous (SC) rehydration using HYLENEX-augmented SC infusion of fluids and electrolytes for the rehydration of pediatric patients with mild to moderate dehydration.
Recombinant Hyaluronidase in Out-of-Hospital Setting: The EASI Access Trial
Mass Casualty IncidentDehydrationThe study's overarching aim is to determine whether Enzymatically Augmented Subcutaneous Infusion (EASI) can assist in out-of-hospital situations characterized by mismatch between need for, and ability to achieve, access to the vascular compartment. One mechanism for providing access to the vascular compartment, subcutaneous infusion, is facilitated by administration of hyaluronidase; the hyaluronidase hydrolyzes hyaluronan the major subcutaneous diffusion barrier. Hyaluronidase thus increases local dispersion and absorption of subcutaneously administered drugs and fluids. The EASI Access study is intended to be the first out-of-hospital study assessing FDA-approved Chinese hamster ovary-derived recombinant hyaluronidase (the recombinant product is hereafter referred to by the shorter brand name, Hylenex). The EASI Access will test some fundamental principles and will facilitate design and implementation of follow-up investigations (e.g. extension of access to non-ALS providers). For example, we will attempt to show that EASI access is simple, effective, and has few or no downsides as compared to IV access.
Subcutaneous Rehydration Compared to Intravenous Rehydration
DehydrationRandomized (1:1 ratio) study of subcutaneous (SC) versus intravenous (IV) fluid rehydration in mildly to moderately dehydrated pediatric patients.
Hydration Intervention in Children
Dehydration in ChildrenThe investigators are conducting this research study to determine learn how daily habits and fluid choices impact children's health, sleep, cognitive function and mood. The investigators look to determine if a hydration intervention using an alternative beverage may impact these variables in children. Maintaining an appropriate level of hydration throughout the day has multiple health benefits. Maintaining a desirable hydration status improves overall health and wellbeing (mood, reaction time, sleep quality, cognitive function, etc.) in adults, but negative health and mental effects of hypohydration are not fully understood in an adolescent population. Maintaining appropriate hydration in adolescents presents unique challenges with respect to schedule (e.g. the availability of fluid during the school day and after school activities) as well as ensuring the most beneficial beverage choice. Adolescents can be very meticulous regarding their preferred beverage (e.g. choosing a sugary drink over water) and parents prefer their children consume the healthiest option for their food and beverages, often times leading to conflict. Therefore the purpose/goal of the proposed study is to determine if a hydration intervention using an alternative sweetened beverage will improve hydration and other overall health (e.g. cognitive function, sleep quality, mood etc.) The investigators hypothesize, that by giving children an alternative tasty option, they will consume more fluids which may lead to improving and maintaining their chronic hydration state. Implementing a beverage intervention with a sweet alternative option (i.e. Creative Roots) could improve hydration levels in adolescents. In turn, possibly improving mood, reaction time, sleep quality, and cognitive function. All of which are vital in the overall development of the adolescent.
Hylenex-Assisted Resuscitation in Kenya (HARK) Trial for the Management of Dehydration
DehydrationOne of the leading health issues among patients, particularly children, presenting for care in low- and middle-income countries is dehydration. When oral rehydration is not sufficient or is clinically inappropriate, rehydration often occurs intravenously. An alternative to intravenous rehydration is subcutaneous infusion and - with or without hyaluronidase enzyme (or Hylenex) - has been shown in several robust trials in high-income countries to be as effective and even safer than intravenous infusion. In this study in western Kenya, the investigators propose a first-ever randomized controlled trial to evaluate whether hyaluronidase-facilitated subcutaneous infusion can be as effective and safe as IV therapy among moderate-to-severely dehydrated patients in low- and middle-income countries.
Ondansetron Administration to Children With Gastroenteritis, Vomiting and SOME Dehydration in EDs...
DehydrationGastroenteritis2 moreThe primary objective is to determine if the administration of a single dose of oral ondansetron (an anti-vomiting medication), compared to placebo, results in a reduction in intravenous (IV) rehydration therapy in children presenting for emergency department care with some dehydration, vomiting and diarrhea in Pakistan. SOME Dehydration is defined as 2 or more of the following signs and symptoms: Restlessness, irritability Sunken Eyes Drinks eagerly, thirsty Skin pinch goes back slowly
BUN/Cr-based Hydration Therapy to Improve Outcomes for Dehydrated Patients With Acute Ischemic Stroke....
StrokeDehydrationThe investigators' preliminary findings suggest that providing patients with acute ischemic stroke hydration therapy on the basis of their presenting BUN/Cr ratio may help reduce the occurrence of stroke-in-evolution(SIE) and therefore improve prognosis. The trial will be carried out in two parts. Part 1 assesses the rate of stroke-in-evolution 72 hours after the onset of stroke as a measure of the activity of BUN/Cr ratio based hydration therapy. Part 2, The investigators use two outcome measures, including Barthel index, and modified Rankin scale for neurological evaluation to assess whether BUN/Cr ratio based hydration therapy results in sustained clinical benefit at three months.