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Heat Stroke clinical trials

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NCT ID: NCT06192069 Recruiting - Heat Stroke Clinical Trials

Heat Strain Prevention in Elderly Agricultural Workers

Start date: January 10, 2024
Phase: N/A
Study type: Interventional

The study explores a multi-component heat strain prevention program for older agricultural workers in response to climate change. It assesses hydration, rest breaks, reflective clothing, and shade provision. Utilizing a quasi-experimental design, it targets 120 elderly workers, evaluating core temperature, heart rate, and heat strain symptoms. The goal is to establish the program's effectiveness in safeguarding worker health and safety amidst increasing temperatures, offering evidence-based recommendations for this vulnerable group and potentially other occupations affected by climate change.

NCT ID: NCT05923931 Recruiting - Heat Stroke Clinical Trials

Non-inferiority Study of the Effect of Non-cooling Blanket on Body Temperature in Patients With Heat Stroke

Start date: May 28, 2023
Phase: N/A
Study type: Interventional

The goal of this clinical trial is to test the cooling effect of cooling blanket in patients with heat stroke. The main questions it aims to answer are: - the cooling rate of cooling blanket in patients with heat stroke - the relationship between cooling blanket and outcomes in patients with heat stroke Participants will accept the cooling blanket or non-cooling blanket according to the randomization group. Researchers will compare cooling rate and outcomes to see if the cooling blanket can accelerate the cooling speed and improve the prognosis of patients in heat stroke.

NCT ID: NCT05921695 Recruiting - Heat Stroke Clinical Trials

The Relationship Between Normal Saline Infusion and Acute Kidney Injury in Heat Stroke

Start date: May 28, 2023
Phase: N/A
Study type: Interventional

The goal of this clinical trial is to compare the effect of high chlorine solution such as normal saline and non-high chlorine solution such as sodium lactate ringer's solution on renal function in patients with heat stroke. The main question it aims to answer is whether limiting the amount of normal saline infusion during emergency department can lower the incidence of acute kidney injury and mortality in patients with heat stroke. Participants will receive a free normal saline infusion during the emergency department according to the study design, or a restricted normal saline infusion while using sodium lactate Ringer's instead. Researchers will compare the normal saline infusion group and sodium lactate Ringer's group to see if limiting the amount of normal saline infusion during emergency department can lower the incidence of acute kidney injury and mortality in patients with heat stroke.

NCT ID: NCT05921682 Recruiting - Heat Stroke Clinical Trials

Early Body Temperature Targets and Relationship With Prognosis in Patients With Heat Stroke

Start date: May 28, 2023
Phase:
Study type: Observational

The goal of this observational study is to explore the optimal target body temperature in first 24 hours and the relationship between body temperature and adverse outcomes of heat stroke. The main questions it aims to answer are: - the optimal target body temperature at 0.5 h, 2 h, and the lowest body temperature of heat stroke. - the best body temperature at the cutting point of stop cooling. - The relationship between the volume and speed of ice saline infusion and the cooling effect.

NCT ID: NCT05847465 Recruiting - Heat Stroke Clinical Trials

Study of Thermoregulation in Exercise Heat Stroke in the Military Environment

EXPLO-MITO
Start date: May 9, 2023
Phase:
Study type: Observational

The EXPLO-MITO study is an ancillary study from the main EXPLO-CCE study (NCT04593316; IDRCB: 2020-A01967-32). The Heat Tolerance Test (HTT) is a physiological exploration that has several advantages for use in research and clinical settings. Unlike the walk-run test, it is performed under controlled conditions, both environmentally (temperature control, humidity, etc.) and in terms of effort intensity. In addition, there are published interpretation criteria for this test allowing to characterize thermoregulation profiles and to distinguish between Heat Intolerant (HI) and Heat Tolerant (HT) patients. The reproducibility of this test and its performance in a climatic chamber allows a true comparison of thermophysiological responses (heart rate, rectal and skin temperatures, skin blood flow and sweat loss), which was not possible with the run-walk test, which was more a field test validating a physical aptitude for recovery (so-called "occupational" test) than a physiological exploration evaluating a response to stress by comparing it with the expected response in a population of young, healthy, properly trained subjects. Moreover, the HTT is a much less physiologically demanding test than the 8-km run. The HTT, which corresponds to a 2-hour walk at 5 km/h with a 2% slope at 40°C and 40% relative humidity, is a so-called "compensable" thermal stress; that is, under these conditions of exercise and environment, when the individual has normal thermoregulatory capacities, a thermal equilibrium plateau is reached during the second hour, when the individual's thermolysis capacities make it possible to compensate for the production of heat by the exercise and the gain of heat related to the environment. On average, this plateau is between 38° and 39°C. This is clearly not the case with our experience of physiological monitoring of the 8-km walk-run which rarely allows a temperature plateau to be reached and is accompanied by a temperature rise constantly above 39°C. In addition to being performed in the laboratory, this test is therefore completely safe. For all these reasons (reproducibility, relevance, predictive value of recurrence), this test has been used for more than 30 years by the Israeli army for the assessment of these cases of exercise heat stroke before their return to work. There is therefore a fair amount of published data and hindsight on the use and interest of this test. The Israeli test has the highest level of recommendation (Grade A) of all the other published heat tolerance tests. Also, the availability of a climatic chamber means that this test can now be proposed as one of the explorations available to clinicians who have to decide on the fitness of soldiers after exercise heat stroke.

NCT ID: NCT05717777 Recruiting - Heat Illness Clinical Trials

Treatment of Exertional Heatstroke witH icE wAter Soaked Towels

THE HEAT
Start date: March 12, 2023
Phase:
Study type: Observational

Exertional heat stroke (EHS) is the most serious form of heat-illness that can occur during sports and exercise. If not recognized and treated immediately mortality rate of EHS is high. Early recognition and initiation of cooling are paramount. If temperature is reduced to < 40°C within 30 minutes of symptom onset, most patients recover completely. There are several strategies for cooling in EHS, including cooling with rotating in ice water soaked towels which cover the body of a patient. The aim of this research is to investigate the effectiveness and safety of treatment of EHS with ice water soaked towels to lower body temperature.

NCT ID: NCT05155358 Recruiting - Kidney Injury Clinical Trials

Study on the Establishment of a System for Early Warning and Prognostic Evaluation of Patients With Heat Stroke

Start date: November 1, 2021
Phase:
Study type: Observational

Heat stroke is a clinical syndrome with high incidence and high fatality rate in summer. Patients with liver, kidney, and brain damage are prone to secondary MODS, and the prognosis is poor due to high medical costs. At present, there is no unified diagnostic criteria for acute liver injury associated with heat stroke, and the commonly used prognosis scores are rarely included in liver injury indicators, which is not good for practicality.

NCT ID: NCT04593316 Recruiting - Heat Stroke Clinical Trials

Study of Risk Factors for the Occurrence and Severity of Exertional Heatstroke in the Military Environment

EXPLO-CCE
Start date: November 2, 2020
Phase:
Study type: Observational

Although the circumstances of onset and management of exertional heatstroke have been identified for several years, its pathophysiology remains imperfectly understood. Exertional heatstroke is the result of both extrinsic (i.e. environmental) and intrinsic (i.e. individual) contributing factors. Extrinsic factors are well known (high ambient temperature and hygrometry, poorly "breathable" clothing, intense and prolonged physical effort) but some of them may be observed in milder conditions. In the French Armed Forces, 25% of the exertional heatstrokes that have been reported between 2005 and 2011 occurred below 17°C. Intrinsic factors, on the other hand, are numerous and less consensual, partly because of the imperfect knowledge of exertional heatstroke physiopathology. Potential factors include a thermoregulatory defect (inability to maintain a temperature plateau during an effort) and several genetic mutations may also contribute to explain a propensity to present an exertional heatstroke. While exertional heatstroke is clearly not a monogenic pathology, the association of several polymorphisms could contribute to this vulnerability. Among the genes that have been explored, mutations in ryanodine receptor type 1 (RyR 1), calsequestrin-1 or angiotensin-1 converting enzyme (ACE) appear to be potential candidates. However, it is very likely that other polymorphisms may be involved, such as: genes involved in sports performance and exercise rhabdomyolysis, in the inflammatory cascade, permeability of the digestive epithelial barrier, adenosine receptors and susceptibility to anxiety. Finally, motivation is a mixed factor often claimed to be involved in exertional heatstroke but has never been quantified and needs to be objectified. To date, none of these hypotheses has been clearly assessed by comparing patients who experienced exertional heatstroke to healthy subjects.