View clinical trials related to Electrophysiology.
Filter by:Premature Ventricular Complex (PVC) ablation is performed in certain indications. Generally acutely abolition of PVC at the time of ablation accepted as successful ablation. However in some patients this effect occurs lately. In this study investigators sought late effect of ablation
The overall aim of the proposed study is to determine optimal parameter of focal muscle vibration for improving spasticity and identify neurophysiological mechanism in healthy subjects. In investigation I-1, subjects will undergo focal muscle vibration with 40, 80, 120 Hz frequency at the medial gastrocnemius muscles (mGCM). As a surrogate maker of spasticity, H-reflex and compound motor action potential (CMAP) of the tibial nerve at mGCM will be recorded pre, during, and post vibration. In investigation I-2, subjects will undergo focal muscle vibration with 0.1, 0.3, 0.5 mm amplitude at mGCM. H-reflex and CMAP of the tibial nerve at mGCM will be recorded pre, during, and post vibration. In investigation II, subjects will undergo focal muscle vibration with predetermined parameters by the investigation I at mGCM. H-reflex and CMAP of the tibial nerve and motor evoked potential at mGCM will be recorded pre, during, and post vibration.
THis study aims to determine whether frequent dosing of intravitreal injections of Ranibizumab (Lucentis) or Bevacizumab (Avastin), which act as VEGF inhibitors, has a deleterious effect on the retina, studied by electrophysiologic testing. This prospective, non-randomized clinical study will include patients assigned to intravitreal injection of Ranibizumab or Bevacizumab due to neovascular AMD. The patients will undergo repeat ophthalmic evaluation and intravitreal injections every 4-6 weeks, as long as will be deemed necessary. Periodic electrophysiologic evaluation including Electroretinogram (ERG), electro-oculogram (EOG) and Visual Evoked Potentials (VEP) tests will be performed every 3 months.
The purpose of the registry is to collect and analyze clinical and laboratory data and tissue samples from patients who are diagnosed with any type of heart disease and to collect the same information and samples from healthy controls in participating Intermountain Healthcare facilities.