View clinical trials related to Autonomic Neuropathy.
Filter by:The aim of work is to study the clinical, electrodiagnostic and neurosonographic characteristics of diabetic patients with small fiber neuropathy in the Egyptian population, and to evaluate both the diagnostic and the prognostic impact of the studied factors on the neuropathy severity and quality of life.
This trial uses a double blinded, randomized 1:1 (active:sham) placebo controlled, parallel group design, investigating the effects of transcutaneous vagus nerve stimulation (tVNS) in patients with systemic lupus erythematosus (SLE). The main objective is to evaluate whether adjuvant treatment with tVNS in SLE patients with signs of autonomic dysfunction and fatigue improves patient perceived levels of fatigue. Secondary outcomes include tVNS induced changes to: patient reported outcomes, autonomic nervous system function, SLE disease activity, immunologic profile, tolerability of pain and organ (cardiac, vascular and kidney) functions. Participants are randomized to received either active non-invasive transcutaneous vagus nerve stimulation (tVNS) or inactive sham stimulation. The study period is divided in two periods. The first period investigates the effects of short-term, high-intensity tVNS treatment. The second phase investigates the effects of long-term, middle-intensity tVNS treatment.
The study is a phd-study comprising several substudies focusing on cardiac arrhythmias, mainly atrial fibrillation, among Greenlanders in Greenland. Some previous studies have indicated that the prevalence may be lower than among Westerners, however; studies have also indicated that atrial fibrillation is underdiagnosed. These studies aim to: - Estimate the prevalence of AF among Greenlanders in Greenland aged 55 years or older. - Estimate the prevalence of well-known risk factors among those found to have AF - Explore the symptoms of those affected by AF in Greenland - Among part of the participants: estimate the prevalence of autonomic neuropathy as this may cause arrhythmias.
The overall objective of this project is to describe the prevalence of and risk factors to diabetic neuropathy in a representative cohort of diabetes patients and to investigate pathophysiological conditions in those patients with neuropathy. This project will yield substantial new knowledge about the prevalence of diabetic neuropathy in type 1 and type 2 DM persons, new risk factors to neuropathy and the association to other diabetic complications. Findings related to the study may facilitate new treatment regimens prompting a better neuropathy treatment with reduced incidence of diabetic complications. First patients at SDCC will be screened for diabetic neuropathy (Study 1.1) with an extended neuropathy screening program as an addition to the routine neuropathy screening at SDCC. 1000 patients with type 1 DM and 1000 patients with type 2 DM will be included. This screening study is a prerequisite for the further study of study participants in substudies investigating associations between diabetic neuropathy and diabetic complications as described below. Hypothesis: Several patients with diabetes have undiagnosed neuropathy and associated diabetic complications. We hypothesize that diabetic neuropathy is underdiagnosed at SDCC and can be diagnosed with targeted screening with new and traditional measuring techniques. In addition, several patients may have complications related to neuropathy, including foot complications, and dysregulation of glucose metabolism Aim: This study consists of a screening study (study 1.1) and two substudies (1.2 and 1.3 ). Study 1.1 is a cross-sectional study describing the prevalence of diabetic neuropathy based on questionnaire data and objective measures as described below and associated diabetic complications including foot complications. The primary aim is to explore the prevalence of diabatic neuropathy in patients with type 1 and type 2 DM at SDCC and secondarily to explore associations between diabetic neuropathy and complications, as described in the respective sections below. The substudy 1.2 is an observational single center cohort study with the aim of investigating associations between neuropathy diagnosed with new devices for measurement of neuropathy and foot complications in patients with type 1 and type 2 diabetes. The substudy 1.3 is an observational single center cohort study investigating the association between CAN and glycemic variability in patients with type 1 diabetes.
We examine patients with different autonomic neuropathies and Ehlers Danlos syndromes compared to healthy controls at three different points over time (baseline, after 3 months and after 1.5 years) to gain knowledge about the course of this disease and understand its pathophysiology, with a focus on Small Fiber neuropathy. Moreover we will validate the german version of the Malmö POTS Score and establish an easy diagnostic scheme for patients in outpatient care.
Autonomic neuropathy is a common complication of type 2 diabetes mellitus. Symptoms from cardiovascular autonomic neuropathy include, dizziness, orthostatic hypotension and insufficient heart rate and blood pressure (BP) regulation during physical exertion. The degree of cardiovascular autonomic neuropathy is most commonly measured as cardiac autonomic neuropathy based on at least two abnormal cardiac reflex tests, which primarily measures parasympathetic indices of the autonomic nervous system (ANS). Few measures are available for quantifying the sympathetic/adrenergic branch of the ANS. Circadian changes in BP is a documented measure of BP variability, regulated centrally by a multitude of centers. A growing number of studies indicate that a diminished BP variability is associated with increased cardiovascular risk and injury. The ANS plays a pivotal role in the execution of these circadian BP changes, mainly through sympathetic adrenergic nerve fibers Few studies have investigated the applicability of 24-hour indices as predictor for autonomic adrenergic dysfunction. No previous studies have investigated the association between clinical markers of adrenergic function, and 24-hour blood pressure indices in type 2 diabetes.
The purpose of this project is to quantify normal and abnormal skin blood flow regionally in different areas of the body(face, extremities, over burns and wounds) at baseline and over time in response to treatment or environmental changes, such as temperature, light and pressure.
Patients with Raynaud's disease have an increased tendency of chest pain and migraine, and studies indicate that the disease might be associated with increased cardiovascular morbidity and mortality. Furthermore, a certain hyperactivity of the sympathetic nervous system has been demonstrated in these patients. Hyperactivity of the sympathetic nervous system is known to cause decreasing heart function, regardless of the underlying disease. The cardiac autonomic nervous function and thermographic parameters will be assessed in patients with primary and secondary Raynaud's phenomenon and glaucoma as well as in patients diagnosed with autonomic dysfunction such as diabetics and patients with Parkinson's disease in order to compare the function of the cardiac autonomic nervous system and the peripheral response to cold exposure. Potentially, this will lead to a better understanding of the cardiac autonomic nervous function in Raynaud's phenomenon. Moreover, it might give rise to a new perception of the condition and its association to cardiovascular disease. At the Department of Clinical Physiology, the current method of detecting Raynaud's phenomenon is time-consuming and unpleasant to the patient due to cooling for several minutes. Another aim of the PhD study is to implement infrared thermography as a gentler and possibly more sensitive method to replace the currently applied method. The project will also include an epidemiological study based on data obtained from the National Patient Registry, among others. Raynaud's phenomenon will be paired with diagnostic codes of conditions such as diabetes mellitus, Parkinson's disease, glaucoma, and cardiovascular disease.
The primary goal of this pilot study is to investigate the association between testosterone deficiency and the presence of abnormalities in the function of the autonomic nervous system. If such association exists, then we will investigate the effect of testosterone replacement therapy on correcting these abnormalities.
Obesity and the metabolic syndrome (MetS) are rapidly growing problems. Individuals with the MetS are at risk for not only future chronic diseases, but they have a higher prevalence of neuropathy, including cardiac autonomic neuropathy, and have a higher incidence of falls. Currently there are no effective therapies to prevent or reverse the neuropathy seen in the MetS or to reduced the fall risk in this population. This research project will determine if a tailored balance exercise program will have functional benefits and result in a reduced fall risk in the growing population of patients with the MetS and neuropathy.