View clinical trials related to Blood Pressure.
Filter by:The goal of this clinical trial is to evaluate the effect of transcutaneous spinal cord stimulation on blood pressure in individuals with an acute spinal cord injury (within 30 days of injury). Blood pressure instability, specifically orthostatic hypotension (a drop in blood pressure when moving lying flat on your back to an upright position), appears early after the injury and often significantly interferes with participation in the critical rehabilitation time period. The main questions it aims to answer are: 1. Can optimal spinal stimulation increase blood pressure and resolve orthostatic symptoms (such as dizziness and nausea) when individuals undergo an orthostatic provocation (a sit-up test)? Optimal stimulation and sham stimulation (which is similar to a placebo treatment) will be compared. 2. What are the various spinal sites and stimulation parameters that can be used to increase and stabilize blood pressure to the normal range of 110-120 mmHg? Participants will undergo orthostatic tests (lying on a bed that starts out flat and then moved into an upright seated position by raising the head of bed by 90° and dropping the base of the bed by 90° from the knee) with optimal and sham stimulation, and their blood pressure measurements will be evaluated and compared.
This project will investigate the effect of spinal cord transcutaneous stimulation on blood pressure in individuals with a chronic spinal cord injury who experience blood pressure instability, specifically, orthostatic hypotension (a drop in blood pressure when moving from lying flat on your back to an upright position). The main questions it aims to answer are: 1. What are the various spinal sites and stimulation parameters that normalize and stabilize blood pressure during an orthostatic provocation (70 degrees tilt)? 2. Does training, i.e., exposure to repeated stimulation sessions, have an effect on blood pressure stability? Participants will undergo orthostatic tests (lying on a table that starts out flat, then tilts upward up to 70 degrees), with and without stimulation, and changes in their blood pressure will be evaluated.
This randomized control trial aims to compare the effects of a regular exergame-based intervention and a regular moderate-intensity endurance exercise in healthy individuals. The main questions it aims to answer are: • Is regular exergame-based training an effective intervention to improve different health and performance parameters in healthy adults? Can the exergaming intervention improve health and performance parameters similar to a moderate-intensity endurance exercise intervention? Throughout the intervention period (8 weeks), participants will participate in regular training sessions (3x/week) in an exergame called the ExerCube. Researchers will compare the effects to a control group who participates in regular (3x/week) moderate-intensity endurance exercise to see if the exergaming intervention induces similar effects on health and performance parameters.
The purpose of this study is to assess whether 480 mg/day magnesium glycinate supplementation for 12 weeks lowers blood pressure.
The purposes of this project are 1) to compare the impact of maternal obesity versus excessive gestational weight gain on obstructive sleep apnea (OSA) in obese and non-obese women; 2) to investigate the mechanism(s) by which obesity and OSA increase cardiovascular risk during pregnancy; and 3) to identify biomarker(s) for obesity-related OSA in pregnant women.
Stroke is the third most common cause of death in New Zealand and is one of the leading causes of long-term disability at all ages. A life-saving clot retrieval procedure can save lives and prevent disability of patients with ischaemic stroke who get to hospital in time. In New Zealand, 90% of clot retrieval procedures are performed under general anaesthesia. Many anaesthetic drugs can affect blood pressure (BP) and blood flow within the brain. Increasing BP during the procedure could provide additional benefits in this devastating disease. A large trial is needed to investigate BP management during clot retrieval.
This study is a multicenter randomized controlled trial comparing two strategies of mean arterial blood pressure management (MAP ≥ 80mmHg vs MAP ≥ 65 mmHg) in high-risk surgical patients undergoing elective laparotomic/laparoscopic surgery.
Intraoperative hypotension is associated with postoperative nausea and vomiting (PONV). Even though the exact mechanism linking PONV and hypotension is still unclear, a reduced intestinal tissue perfusion might trigger nausea and vomiting. Still to date only limited data evaluating intraoperative blood pressure and the incidence of PONV after general anesthesia exits. Furthermore, the effect of intraoperative blood pressure variability on the incidence of PONV has not been investigated yet. Therefore, we will test our primary hypothesis that the incidence of PONV during the early (0-2h) postoperative period will be minimized by targeting intraoperative blood pressure variability to a SPB of 120±5mmHg by using a continuous vasopressor infusion in female patients undergoing elective minor to moderate risk non-cardiac surgery.
The purpose of this study in patients undergoing routine care epidural spinal cord stimulation (SCS) is to determine 1) whether SCS reduces arterial blood pressure (BP) in patients which chronic low back pain and hypertension, 2) whether higher baseline BP (i.e., hypertension) predicts reductions in pain following SCS, and finally 3) whether different SCS waveforms elicits stimulus-evoked compound action potentials (ECAPs) in spinal cord and at the cortex (electroencephalography, and magnetoenchphalography).
Background: Blood pressure is one of the key markers of cardiovascular health. High blood pressure, also called hypertension, can increase the risk of heart disease or stroke. Monitoring a person s blood pressure continuously over a 24-hour period at home is the best way to diagnose hypertension, but the equipment currently used to do it is cumbersome. This natural history study will test a new technique for monitoring blood pressure continuously over time. Objective: To test a new technique (speckle plethysmography) for measuring blood pressure in healthy adults. Eligibility: Healthy people aged 18 years and older. Design: Participants will come to the clinic a minimum of 2 times. The screening visit will last up to 2 hours. Participants will have a physical exam. Their vital signs will be taken. The clinical visit will last up to 1 hour. Participants will recline in a chair. Sensors to measure the activity of the heart will be placed on their chest. Different sensors will be placed on two fingers and one big toe. A device to measure blood pressure will be placed on one arm. While wearing the sensors, participants will undergo 3 tests: They will be asked to breathe slowly for 2 minutes. They will be asked to solve a math problem. They will immerse one hand or foot into an ice bath for up to 2 minutes. Each test will be followed by a 5-minute recovery period. Participants may elect to return for up to 3 more visits during the following week.