19 Clinical Trials for Various Conditions
Overall, this study will investigate the functional utility of stereotyped HFOs by capturing them with a new implantable system (Brain Interchange - BIC of CorTec), which can sample neural data at higher rates \>=1kHz and deliver targeted electrical stimulation to achieve seizure control. In contrast to current closed-loop systems (RNS), which wait for the seizure to start before delivering stimulation, the BIC system will monitor the spatial topography and rate of stereotyped HFOs and deliver targeted stimulation to these HFO generating areas to prevent seizures from occurring. If the outcomes of our research in an acute setting become successful, the investigators will execute a clinical trial and run the developed methods with the implantable BIC system in a chronic ambulatory setting.
Overall, this study will investigate the functional utility of stereotyped HFOs by capturing them with a new implantable system (Brain Interchange - BIC of CorTec), which can sample neural data at higher rates \>=1kHz and deliver targeted electrical stimulation to achieve seizure control. In contrast to current closed-loop systems (RNS), which wait for the seizure to start before delivering stimulation, the BIC system will monitor the spatial topography and rate of stereotyped HFOs and deliver targeted stimulation to these HFO generating areas to prevent seizures from occurring. If the outcomes of our research in an acute setting become successful, the investigators will execute a clinical trial and run the developed methods with the implantable BIC system in a chronic ambulatory setting.
High Frequency Oscillation (HFO) on ElectroCorticoGraphy (ECoG) has been identified as a new biomarker for epileptogenic tissue. The purpose of this study is to see if epilepsy surgery guided by the combination of HFO on ECoG and standard clinical practice can result in a greater likelihood of seizure freedom, versus standard clinical practice alone, without HFOs.
Chronic Obstructive Pulmonary Disease (COPD) is a major cause of chronic morbidity and mortality throughout the world, being the fourth leading cause of death in the world. This study is designed to detect COPD participants with Expiratory Flow Limitation. EFL occurs when the airways become compressed which usually results when a pressure outside the airway exceeds the pressure inside the airway. Participants will undergo study eligibility procedures at visit 1. At visit 2 participants will undergo a baseline auto-EPAP (Expiratory Positive Airway Pressure) measurement. Then the order will be randomized to three different treatment methods. Between each treatment there will be at least a 10 minute washout period in order for CO2 to stabilize and return to baseline.
This study is designed to evaluate the high-frequency range deep brain oscillations (HFO) as pathologic markers in patients undergoing deep brain stimulation for epilepsy or Parkinson disease. Newly developed technology allows for the chronic recording of these brain signals at the same time as clinical stimulation is occuring. We will learn both whether these HFO correlate with disease activity and whether the HFO change in response to ongoing stimulation (potentially giving insight into the underlying mechanism of action of DBS).
The objective of this study is to utilize high-frequency brain signals (HFBS) to localize functional brain areas and characterize HFBS in epilepsy, migraine, and other brain disorders. Our goal is to create the world's first high-frequency MEG/EEG/ECoG/SEEG database for the developing brain. HFBS include high-gamma activation/oscillations, high-frequency oscillations (HFOs), ripples, fast ripples, spikelets, fast spikelets, and very high-frequency oscillations (VHFOs). While terminologies and frequency bands may vary among reports, both HFOs and high-gamma waves are crucial for understanding brain function and developing potential treatments for neurological disorders. We have been developing an intelligent software platform to analyze signals from low to very high-frequency ranges across multiple frequency bands. To achieve these goals, we have developed several innovative techniques and software packages: * Accumulated spectrogram * Accumulated source imaging * Frequency-encoded source imaging * Multi-frequency analysis at source levels * Artificial intelligence detection of HFOs * Neural network analysis (Graph Theory) * Other techniques (e.g., Independent Component Analysis, virtual sensors) These methods enable researchers to better understand the characteristics and significance of HFOs and high-gamma brain waves, contributing to advancements in the diagnosis and treatment of neurological disorders.
The major goals of the study are to 1) characterize hippocampal activity in patients with mild cognitive impairment (MCI) due to Alzheimer's disease (AD) and AD who have suspected hippocampal epileptic activity based on scalp EEG recordings from IRB # 21-001603; 2) study the efficacy of brivaracetam to suppress epileptic activity and pathological high frequency oscilations (pHFOs) during hippocampal depth electrode and scalp EEG in patients with MCI and AD; and 3) investigate the effects of brivaracetam on cognition in an open-label pilot study.
What is the effect of early high frequency oscillation (HFO) versus a lung-protective conventional ventilation (CV) strategy (using HFO only as rescue therapy), on all-cause hospital mortality among patients with severe early acute respiratory distress syndrome (ARDS)?
The primary objective is to compare the patient's baseline QoL prior to HFCWO use against the patient's QoL at various study timepoints over a one-year period of HFCWO use.
The impact of high-frequency chest wall oscillation therapy on spirometry values (Forced Expiratory Volume, Forced Vital Capacity, Peak Expiratory Flow, Forced Expiratory Flow and Tidal Volume is investigated during use of several products and comparing to baseline values.
To asssess efficacy of airway clearance provided by Vest therapy (HFCWO) in the reduction of respiratory exacerbations requiring hospitalization or antibiotic utilization in patients with muscle weakness and restrictive lung disease.
To compare the outcomes of patients treated with the Vest and conventional chest physiotherapy to determine if the Vest provides equivalent therapy
Patients with cystic fibrosis (CF) must perform daily bronchial drainage therapy (BD) to keep their airways clear of secretions. Many different techniques are available to achieve this and there is currently no agreement as to which form of therapy is most effective. High frequency chest wall oscillation (HFCWO is used for this purpose by CF patients throughout the United States and abroad. To perform this therapy, the patient wears a vest which fits over the entire torso and is connected to an air compressor. The compressor generates oscillating air pulses that are transmitted to the lungs, thereby mobilizing secretions. The oscillations produced by the most commonly used device have a sinusoidal wave form (The Vest™ Airway Clearance System, Hill-Rom Inc, St Paul, MN). Previous studies indicate this form of therapy is as effective as more traditional and cumbersome forms of therapy. The design of the pulse generator has been recently modified so that the oscillations produced have a triangular wave form (Respitech Inc, MN). Studies done at the University of Minnesota found that the air flows induced in the airways can vary substantially depending on the wave form applied to the chest. At present, the impact of using a triangular wave form on mucus removal is unknown. The proposed study will compare mucous clearance using a device generating sine wave oscillations to a device generating triangular wave oscillations. Hypothesis: Bronchial drainage using a triangular wave form of HFCWO will result in superior sputum production compared to HFCWO using a sine wave form. Secondary Hypotheses: Bronchial drainage using a triangular wave form of HFCWO may result in sputum with rheologic properties distinct from sputum produced while using sine wave HFCWO. Bronchial drainage using a triangular wave form of HFCWO may result in superior post-therapy pulmonary function tests compared to pulmonary function tests obtained following therapy with sine wave HFCWO. Subjects will perceive bronchial drainage using a triangular wave form of HFCWO as more comfortable than airway clearance using sine wave HFCWO.
The purpose of this study is to evaluate changes in intracranial pressure (ICP) during or immediately following high frequency chest wall oscillation (HFCWO) treatment with the Vest™ in neurosurgical subjects.
The purpose of the study is to investigate the addition of high frequency chest wall oscillation (HFCWO) therapy to the prescribed care regimen to support the diaphragm during airway clearance among post-COVID patients with COPD and chronic productive cough as a way to limit the advancement of pulmonary symptoms and need for critical services during recovery from COVID-19.
This a 70 patient multi-site non blinded randomized control trial evaluating the use of the Vest® System for treatment of Non-Cystic Fibrosis Bronchiectasis (NCFBE) patients in the home setting. The study will assess outcomes in subjects requiring airway clearance therapy randomized to Oscillating Positive Expiratory Pressure (OPEP) therapy as the control group and High Frequency Chest Wall Oscillation (HFCWO) therapy as the intervention group
To determine whether or not high frequency chest wall oscillation (in the form of the VestTM) is superior to regular asthma therapy in the management of children hospitalized with moderate to severe asthma.
Our primary hypothesis is that airway clearance therapy with sine waveform HFCWO using higher inflation pressures combined with both low and high oscillator frequencies will result in greater sputum production compared to sine waveform HFCWO with lower inflation pressures and mid-frequency oscillations.
Patients will receive one of three respiratory therapy interventions for airway clearance assistance: 1) High frequency chest wall oscillation (HFCWO) and mechanical insufflation/exsufflation (MIE), 2) HFCWO or 3) MIE. The study period will be six months and include three clinic visits, baseline and follow-up visits at 3 and 6 months, and 6 monthly home visits by the respiratory therapist.