View clinical trials related to Immersion.
Filter by:Randomized controlled trial reporting the pain levels and pain control/reduction of children at the age of 6-15 undergoing surgical procedures by using virtual reality gaming (VR) compared to nitrous oxide. Therefore, 50 patients in each treatment group are recruited, resulting in 100 children altogether. The pain levels and pain control/reduction is measured by the standard anesthesia protocol normally used when nitrous oxide is applied and questionnaires that are administered to the patients at baseline and two weeks after surgery including both the primary and secondary outcome.
This trial is testing the effectiveness of a single oral dose of sildenafil (50 mg) taken 1 hour before a provocative event on the subsequent development of swimming-induced pulmonary edema.
Immersion to the neck before and during hemodialysis session may increase intravascular volume, potentiate the ability to ultrafiltrate excess water, with less symptoms of shock, muscle crumps etc. The aim of the present study is to compare blood volume, hemodynamic and endocrine parameters of chronic ESRD patients undergoing forth dialysis session in water immersion vs. control regular session.
Pregnant women with pre-eclampsia and growth restricted fetuses often have a reduced function of the placenta. This is accompanied by an increased perinatal mortality and morbidity. By ultrasound it is possible to measure blood flow and vascular resistance in both the fetal umbilical cord and in the blood vessels supplying the uterus. A high resistance in these vessels occur before the child is severely affected. By immersion in water extracellular fluid is redistributed back into the circulation, and central blood volume increases. Previous studies have shown that maternal minute-volume increases, while blood pressure drops slightly. Also an increased amniotic fluid has been recorded. This has been interpreted as an expression of increased renal blood flow. Immersion into water could increase blood flow in the vessels supplying the uterus and thus increase blood flow to the child. The investigators aim to clarify this by examining blood flow and resistance in the blood vessel supplying the uterus and in the umbilical cord, while the participant is immersed into water. Initially, 25 healthy women with an uncomplicated singleton pregnancy recruited from the Department of Obstetrics and Gynaecology: Hvidovre University Hospital, Denmark, will be examined. The participant will act as its own control and measurements above water and immersed will be conducted at the same study session. Ultimately the investigators seek to contribute to a non-invasive option for prolonging those pregnancies where the fetus and/or maternal condition requires delivery several weeks before term, and where immersion of the pregnant woman in the water a few hours one to several times daily, may prolong the pregnancy the required number of hours/days for antenatal steroid treatment to be sufficient. There are no risks associated with the study and the project team considers it ethical to implement this. The study is not supported by pharmaceutical companies or other groups with economic interests. The project group itself has taken the initiative to study.
The investigators will simulate the conditions of a working, helmeted diver by using exercising, "head out" immersed subjects to test the following hypotheses: 1. An algorithm can be developed which predicts cognitive performance in immersed exercising divers, based on the exhaled carbon dioxide (PETCO2) and the diver's inspired partial pressures of oxygen and nitrogen (PIO2 and PIN2). 2. PETCO2 using mass spectrometry is an accurate estimate of arterial carbon dioxide (PaCO2) at rest and during immersed exercise and can be used as a PaCO2 surrogate at levels exceeding 50 mmHg and depths up to 158 fsw (gas density 6.4 g/l, similar to 165 fsw density of 6.8 g/l).