View clinical trials related to Autonomic Dysfunction.
Filter by:This is a randomized, single-blinded, triple crossover study focused on determining the feasibility of using transcranial magnetic stimulation (TMS) for treatment of Parkinson's disease related autonomic dysfunction and depression. Participants will undergo TMS to three brain regions: medial prefrontal cortex (mPFC) (experimental site), dorsolateral prefrontal cortex (DLPFC) (alternative experimental site), or primary sensory cortex (S1) (control site) in a triple crossover design. Participants will complete symptom questionnaires, neurologic examination and cognitive assessments, and orthostatic vital signs recording before and after each brain stimulation session.
The purpose of this project is to examine the impact of increases in brain insulin on sympathetic nervous system activity, as well as peripheral and cerebral blood flow in humans.
Studying the causal roles of components of the renin-angiotensin-aldosterone system (including angiotensin-(1-7) (Ang-(1-7)), angiotensin-converting enzyme 2 (ACE2), Ang II, and ACE), uric acid, and klotho in pediatric hypertension and related target organ injury, including in the heart, kidneys, vasculature, and brain. Recruiting children with a new hypertension diagnosis over a 2-year period from the Hypertension and Pediatric Nephrology Clinics affiliated with Brenner Children's Hospital at Atrium Health Wake Forest Baptist and Atrium Health Levine Children's Hospital. Healthy control participants will be recruited from local general primary care practices. Collecting blood and urine samples to analyze components of the renin-angiotensin-aldosterone system (Ang-(1-7), ACE2, Ang II, ACE), uric acid, and klotho, and measuring blood pressure, heart structure and function, autonomic function, vascular function, and kidney function at baseline, year 1, and year 2. Objectives are to investigate phenotypic and treatment response variability and to causally infer if Ang-(1-7), ACE2, Ang II, ACE, uric acid, and klotho contribute to target organ injury due to hypertension.
Postural Orthostatic Tachycardia Syndrome (POTS) is characterized by symptoms of chronic orthostatic intolerance such as fatigue, lightheadedness, dizziness, palpitations and by pronounced tachycardia upon standing. The aims of the present research study are to test whether a daily transcutaneous vagal nerve stimulation (tVNS) performed for 14 consecutive days may improve heart rate response and reduce disabling symptoms while standing.
The prevalence and incidence of end-stage renal disease in Taiwan ranks highest in the world, and it is based on the 2018 health welfare According to statistics from the Ministry of Foreign Affairs, kidney disease is the ninth leading cause of death in Taiwan. As the course of chronic kidney disease (CKD) progresses, autonomic nervous system dysfunction, inflammation, and physical and psychological symptoms (such as fatigue, sleep disturbance, and depression) will increase, which will further damage the structure and function of the kidney Intensified, increasing the demand for dialysis treatment and the risk of cardiovascular disease, which consumes social and medical costs. If the investigators can intervene in a feasible measure to effectively regulate the autonomic nervous function of CKD patients, reduce inflammation and physical and psychological symptoms, and delay the progression of the disease, it will be the main goal of caring for CKD patients. To explore the intervention of heart rate variability biofeedback, which can improve the autonomic nervous function (heart rate variability [Heart Rate Variability]), inflammatory response (interleukin-6 [Interleukin-6, IL-6], C-reactive protein [ C reaction protein, CRP]) and physical and psychological symptoms (such as reducing fatigue, sleep disturbance and depression).
To evaluate autonomic regulation in patients with Prader-Willi syndrome with sleep-disordered breathing.
Vagal nerve stimulation is a neurosurgical procedure consisting of implantation of an impulse generator battery with leads placed into the vagus nerve in the neck. This procedure was FDA approved for epilepsy in the 1990s and is commonly performed as an outpatient surgery. The mechanism of efficacy is not well understood; however it is increasingly recognized that electrical stimulation of the vagus nerve may impact other organ systems in the body including the immune, gastrointestinal and autonomic systems. The primary objective of this study is to characterize the pre- and post-operative bowel habits and gut microbiome of patients implanted with vagal nerve stimulator (VNS) for epilepsy. Secondary objectives of this study include: (1) to characterize the pre- and post-operative autonomic profile, (2) characterize the pre- and post-operative immune profile, and (3) to elucidate whether gut microbiota changes are related to VNS efficacy for epilepsy.
The study has three aims: 1. To investigate the influence of cardiovascular autonomic function on pain sensitivity at rest in patients with fibromyalgia and age- and sex-matched controls 2. To investigate the influence of cardiovascular autonomic function at baseline and during exercise on the pain response following submaximal isometric exercise 3. To study the relation between the pain response following physical and cognitive tasks (exercise and mental math, respectively).
This study aim to evaluate if the improvement of heart rate variability for the continuous positive airway pressure titration night can predict the short and long term continuous positive airway pressure adherence for patients with moderate to severe OSA.
Investigators conducted a pilot study to to evaluate the autonomic function in participants with pectus excavatum before and after Nuss surgery.