38 Clinical Trials for Various Conditions
Acute compartment syndrome (ACS) is a surgical emergency that can develop in patients on extracorporeal membrane oxygenation (ECMO). ACS is a type of limb ischemia, which means that the limb, such as the arm or leg, loses blood flow. Patients on ECMO can develop this condition for many reasons, but most commonly from the ECMO procedure itself. This most commonly involves the leg. Key symptoms of ACS include severe pain, loss of pulses, loss of feeling, and inability to move the limb. However, because patients on ECMO are often sedated, ACS is difficult to diagnose as patients can not report symptoms. As a result, the only available tool for diagnosing ACS may be measurement of pressures in the limb. This is normally done with a needle-device, which is inserted into the leg for a single measurement. However, a recently developed device, called the MY01 Continuous Compartment Pressure Monitor, allows for continuous pressure readings instead of a single measurement. Multiple measurements may allow for much greater accuracy in diagnosing ACS, which may result in faster time to surgery and potentially save more limbs than single measurements. This device may also be less invasive than an older method of continuous pressure measuring, which uses a needle and tubing that is 14-gauge in size. Therefore, this study aims to compare 3 different types of methods for diagnosing ACS in patients on ECMO, which are 1) Standard of Care, 2) Standard of Care and MY01, and 3)Standard of Care and 14-gauge slit catheter.
This is a prospective observational study of patients with suspected Acute Compartment Syndrome. The primary objective of this work is to determine whether intensity changes associated with the NIRST signal, reflecting oxy- and deoxy-hemaglobin and water concentrations or ICG fluorescence signal, reflecting tissue perfusion, can be associated with development of Acute Compartment Syndrome and identification of at-risk soft tissue and muscle.
The purpose of this study is to evaluate both genotypic differences and differences in local gene expression in individuals who develop acute traumatic compartment syndrome relative to control patients with at-risk lower extremity fractures who do not develop compartment syndrome.
Chronic Exertional Compartment Syndrome (CECS) is a painful condition affecting runners and it is caused by a reversible increase in pressure within a closed compartment in the leg. Currently, to diagnose CECS, a large needle is placed into the muscle to measure pressure, which is invasive and painful. After diagnosis, the gold standard of treatment is surgery, which is also invasive, involves a prolonged return to play, and has a significant number of treatment failures. A growing literature has suggested alternative methods to both diagnosis and treatment that include the use of ultrasound to investigate muscle stiffness with shear wave elastography (SWE), and treatment with botulinum toxin injection into the muscle. The investigators propose a single-site randomized clinical trial to investigate the use of abobotulinumtoxinA in the treatment of CECS. Researchers also look to develop a non-invasive method for the diagnosis of CECS using SWE. To the researchers' knowledge, this is the first randomized study investigating the medication to treat this cause. The study will take place at Emory's outpatient sports medicine clinic. Potential participants will primarily be identified and recruited from the departments of Physical Medicine and Rehabilitation, Orthopedics, Physical Therapy, and Sports medicine as a part of regular clinical care. Participants will be included in the randomized portion of the study if they meet the previously established diagnostic criteria for CECS with compartmental pressure testing. This would be a landmark study to provide evidence for the use of an abobotulinumtoxinA in the treatment of CECS, leading to the potential avoidance of a surgical procedure. It could also change the means of diagnosis without the use of painful and invasive needle pressure testing that would provide patients and athletes with ease of care.
Chronic exertional compartment syndrome (CECS) is an innocuous condition seen primarily in 10-60% of young active people with exercise induced leg pain. With an average delay in diagnosis of 2 years, early identification is crucial as delays have led to poor surgical outcomes after fasciotomy. Diagnosis is currently made by compartment pressure (CP) testing, which is invasive, painful and demonstrates variable accuracy. There is no literature on the role of shear wave elastography (SWE) and/or subharmonic assisted pressure estimation (SHAPE) with microbubbles in diagnosing CECS. Ultrasound contrast agents are FDA-approved and are extremely safe. In this single-blinded prospective pilot study, the accuracy of SHAPE and SWE will be evaluated and compared to the current gold standard of compartment testing in patients with suspected CECS. Muscle stiffness and record a quantitative assessment of enhancement and hydrostatic pressures will be documented and correlated with compartment testing results based on a reference standard modified Pedowitz criteria for CECS
10 participants with Recurrent Chronic Exertional Compartment Syndrome (R-CECS) will be enrolled in a 6 month study at the University of Wisconsin Hospitals and Clinics to test the hypothesis that injection of Botox into the affected muscle group will alleviate pain associated with R-CECS.
The purpose of this trial is to conduct a pilot study that will aid in the design of an evaluation of the clinical benefit of MY01, an FDA cleared device, that allows continuous monitoring of intracompartmental muscle pressure in patients at risk for developing acute compartment syndrome. MY01 has previously been successfully tested on animal and Human cadaver Acute Compartment Syndrome models within the RI MUHC through Department of Defense research Grant (Combat Casualty Care Research Program (CCCRP). This trial is supported by the same grant, as the next phase of the overall project. This is a multi-center, non-randomized, historically controlled, prospective trial of the MY01 device. A cohort of 50 participants will be prospectively enrolled with two weeks follow up to document clinical benefit of the device. Results from this study will be used to inform the design of a larger study designed to demonstrate the clinical benefit of the MY01 device in the early diagnosis of ACS. The role of each organisation within the trial are detailed below: * Research Institute of McGill University Health Centre (RI MUHC): study coordination and data analysis (no recruitment activity will take place in the MUHC). * Hennepin Healthcare: participants recruitment * Vanderbilt University Medical Centre: participants recruitment
Chronic Exertional Compartment Syndrome (CECS) in the lower leg is a debilitating condition in highly active individuals. Pain occurs in 1 or several leg compartments upon an exertional activity, typically running, that quickly dissipates once the activity stopped. Surgical fasciotomy is the standard for treating lower leg CECS, but success is variable. Complications may occur post-surgery and there is a potential for a repeat procedure. Recovery times post-surgery also vary greatly. Conservative treatments, such as gait retraining and botulinum toxin injections, are emerging as non-surgical options for the treatment of CECS with success through published case reports and case series. This study aims to evaluate the use of these non-surgical treatment options for CECS in the anterior and lateral leg compartments with a follow up for at least 2 years across multiple study sites.
The goal of the study is to determine how different types of Regional Anesthesia (nerve blocks) can be helpful to patients with lower extremity trauma who develop compartment syndrome (an increased pressure in the fascial compartments) which can occur after injury to the leg. This is a prospective, randomized study in healthy volunteers, who will undergo testing of the leg using a cuff inflation system, involving quantitative sensory testing (QST), questionnaire completion, with ultrasound scanning and nerve blocks in a supervised, monitored setting (BWH Clinical Investigation Center). Specific Aims 1. Determine the effect of adductor canal-saphenous nerve block (ACB) and popliteal-fossa nerve block (SNB-PF) vs no block on pressure and ischemic pain in a model of compartment syndrome. 1. Hypothesis: There will be minimal or no change in pressure pain threshold and tolerance and pain ratings with ACB alone 2. Hypothesis: There will be an increase in pressure pain threshold and tolerance and decrease in pain ratings with ACB plus popliteal-fossa nerve block (SNB-PF), compared to no block 2. Determine the concentration dependence of SNB-PF effect on pressure and ischemic pain by comparing increasing doses of local anesthetic. 1. Hypothesis: There will be a greater increase in pressure pain threshold and tolerance and great decrease in pain ratings with 1.5% mepivacaine than with 0.375% mepivacaine.
After diagnosis of Chronic Exertional Compartment Syndrome (CECS), the participants will be referred to both physical therapy and Botox injection. In physical therapy, the therapist will perform strength measurements of the lower leg (ankle plantarflexion and dorsiflexion) which will be repeated 2 months following the injection. An ultrasound-guided injection of 50 units of Botox will be administered into the tibialis anterior. 25 units will be injected into two different spots in the muscle one being more proximal and the other distal. This will be a one-time injection and will be observed as to how it effects participant symptoms over the next 6 months at either a clinic visit (at 2 months) or telephone call (at 4 and 6 months after injection) via the University of Wisconsin Running Index. Two months following the injection, the participant will undergo repeat measurements of strength using the Kiio Force Sensor. Should potential participants of childbearing potential wish to enroll in the study, a urine pregnancy test will be performed prior to enrollment; participants will not be enrolled if test is positive.
This is a phase 1 study to assess safety and tolerability of intramuscular administration of two different doses of autologous bone marrow mononuclear cells (BM-MNCs) for treatment of lower extremity injury complicated by compartment syndrome injury.
The purpose of this study is to investigate high frequency ultrasound as a future modality for the diagnosis of chronic exertional compartment syndrome (CECS). The results of the ultrasound will help determine if there are any significant radiologic findings or patterns seen in patients with CECS.
This study is a prospective, randomized trial. Our study aims to study the effects of perioperative patient education about compartment syndrome on patients' perception of their own pain, amount of opioid medication utilization, and rate of diagnosis of compartment syndrome.
We will investigate the feasibility of a simple outpatient one time injection regimen for the treatment of Chronic Exertional Compartment Syndrome (CECS). We think botulinum toxin injections will be a potentially cost-effective, low-risk alternative to surgery in reducing pain and returning patients to full activity.
Compartment syndrome (CS) is a condition resulting from increased pressure within a compartment, which compromises circulation and can lead to critical limb ischemia. CS is one of the biggest medical challenges that our soldiers face after battlefield related injuries. Chronic or exercise-induced compartment syndrome (CS)rarely requires treatment; acute compartment syndrome is a medical emergency requiring surgery. Treatment of compartment syndrome is limited to fasciotomy, which relieves the pressure.The study purpose is to evaluate the feasibility and safety of the administration of marrow-derived autologous bone marrow concentrate and PRP gel generated by a point of care marrow separation system for the treatment of compartment syndrome. And to show this treatment possibly enhances wound healing, bone healing, perfusion, infection control, and the return of limb function in patients with CS. Stem Cell and regenerative medicine development efforts for therapeutic angiogenesis and wound healing have predominantly focused on the mechanism of action of a single stem cell population to achieve neovascularization and improve tissue perfusion. It is well documented that other cells, including platelets, are efficient carriers of growth factors (VEGF-PDGF, bFGF, and SDF-1) and play active roles in angiogenesis and wound healing. Arteriocyte's development efforts focus on concentration of autologous bone marrow-derived stem cells and platelets for delivery to the site of injury in a concentration sufficient to effect local tissue revascularization and repair. These products provide for the rapid, bedside preparation of autologous PRP and bone marrow stem cell concentrate. This clinical trial with the Magellan® System is for the preparation of autologous cell concentrate for the treatment of wound, tissue and bone healing, improved perfusion, infection control, and the return of limb function in patients at risk of amputation.
The long-term objective is to develop a tool to aid in making a timely and accurate diagnosis of acute compartment syndrome (ACS). The immediate objective is to develop a model to accurately predict the likelihood of ACS based on data available to the clinician within the first 48 hours of injury (specific clinical findings supplemented by muscle oxygenation measured by near-infrared spectroscopy (NIRS), and continuous intramuscular pressure (IMP) and perfusion pressure (PP) monitoring). Our primary outcome is the retrospective assessment of the likelihood of compartment syndrome made by a panel of clinicians using the following data: * A physiologic "fingerprint" composed of continuous pressure versus time curve, continuous oximetry values, response of muscle to fasciotomy when performed, and serum biomarkers of muscle injury (CPK levels). * Clinical and functional outcomes at 6 months post-injury including: sensory exam, muscle function, presence/absence of myoneural deficit, and patient reported function using the Short Musculoskeletal Function Assessment (SMFA).
This is a study intended to evaluate a new device that uses light to measure the amount of oxygen in the muscles of injured and non-injured legs and forearms in specific situations. The name of this technology is NIRS (near-infrared spectroscopy). This is a prospective observational cohort study intended to gather data using NIRS among injured and noninjured extremities over time. Additionally, this data will help in establishing diagnostic perfusion value thresholds to be used in a subsequent interventional study confirming the efficacy of NIRS-based ACS monitoring.
This is a prospective observational study to determine the reliability and accuracy of Near Infrared Spectroscopy (NIRS) to detect oxygen flow in the extremities of injured and non-injured soldiers over time. This technology may be useful in the detection of acute compartment syndrome. We hypothesize that: * NIRS values will be well-correlated with intracompartmental pressure measurements * NIRS values will be significantly different between non-injured and injured extremities, and injured extremities treated with fasciotomy for acute compartment syndrome. * NIRS values of the upper extremity and feet will correlate to values from normal legs in critical control patients and patients with unilateral sever lower extremity injuries.
The purpose of this study is to define the reliability and accuracy of Near Infrared Spectroscopy (NIRS) in the detection of intra-compartmental tissue perfusion in injured and noninjured extremities over time. We hypothesize that this technology, combined with vital signs, intracompartmental pressures and clinical examinations, will be useful in diagnosing acute compartment syndrome (ACS), monitoring patients at risk for ACS, and evaluating the adequacy of fasciotomy in patients treated for ACS.
An investigation of a new catheter and pressure monitor system that may help to prevent a complication called compartment syndrome from developing in an injured leg. Compartment syndrome occurs when too much fluid builds up in the muscles of the injured leg. This causes a lot of swelling and increases pressures within the leg that can cause permanent damage muscles and nerves in the leg.
This study will test the safety of a new treatment method called tissue ultrafiltration. We will test this method in the treatment of compartment syndrome, a condition that occurs when pressure within the muscles builds to dangerous levels. In the legs and other parts of the body, a tough, stiff membrane covers groups of muscles and the nerves and blood vessels that run next to and through them. The entire unit is called a compartment. The causes of compartment syndrome include traumatic leg injuries and loss of blood supply. In tissue ultrafiltration, a doctor places hollow probes, or catheters, directly into the muscle compartment in the injured area of the lower leg. The probes remove fluid from the compartment (extra fluid can cause increased pressure). We will do an initial safety study in a group of patients who have had surgery for a broken tibia (the inner, larger bone of the lower leg) and are at high risk for developing compartment syndrome. The goals of this initial study are to show that inserting tissue ultrafiltration catheters in the muscle compartment is safe and can be done repeatedly without problems; to show that tissue ultrafiltration can be used to monitor the biochemical environment inside tissues; and to show that the catheter apparatus provides an accurate measurement of pressure in the compartment.
This is a study intended to validate a new set of guidelines for a device that uses light to measure the amount of oxygen in the muscles of injured and non-injured legs and forearms in specific situations.
The proposed study is a double-blinded, randomized clinical trial of tissue pressure monitoring only (Control group) vs. tissue pressure monitoring plus tissue ultrafiltration (Treatment group) in patients with tibia fractures presenting to the trauma or emergency departments at participating clinical sites. Tissue ultrafiltration refers to the removal of muscle interstitial fluid by the ECSPRESS PMFC. The primary objective of the study is to demonstrate whether the removal of interstitial fluid by the ECSPRESS PMFC/FC catheters decrease the incidence of fasciotomy in the Treatment group when compared to the Control group. Fasciotomy was chosen as the primary outcome because it is clearly defined and clinically relevant; reduction of fasciotomy is of clear clinical benefit. Enrolled patients may have isolated tibia fractures OR be multiple trauma patients (those with another major fracture in a different body region or two distinct body system injuries, excluding those with injuries to the opposite leg that would preclude them from completing required tests).
This study examines the feasibility of using Flex HD® Surgical Implant or STRATTICE® Reconstructive Tissue Matrixin the repair of hernias.
Acute compartment syndrome (ACS) is a complication of lower leg trauma that occurs when the pressure inside the leg due to swelling exceeds the body's ability to provide blood to the muscle of the leg. This condition cuts off blood flow to the leg. Left untreated, the condition can result in devastating consequences including complete loss of function of the lower extremity or amputation. Near-infrared spectroscopy (NIRS)-based tissue perfusion monitors are a non-invasive means of continuously monitoring the amount of oxygen in the tissues of an injured extremity. The device utilizes harmless red light to detect the proportion of hemoglobin saturated with oxygen up to 3 cm below the skin surface. The purpose of this study will be to launch the first stages of validation of this device as a diagnostic tool for compartment syndrome, by observing this device in uninjured subjects.
Near infrared spectroscopy (NIRS) provides a non-invasive means of continuously monitoring tissue oxygenation, which may be useful for diagnosis of acute compartment syndrome (ACS). Placement of these sensor pads on the surface of the skin must be such that light penetrates the intended compartment without inadvertently obtaining measurements of an adjacent compartment. The objective of this study is to examine whether the NIRS measurements of each compartment truly represent the tissue perfusion of the intended compartment, as indicated by the predictable decrease in muscle oxygenation of a given compartment in response to muscle fatigue. The investigators hypothesize that the tissue oxygenation values of the stimulated compartment will significantly decrease following muscle stimulation, indicating that the intended muscle compartment was successfully isolated. Additionally, the investigators hypothesize that NIRS values of unstimulated muscle compartments will not change from baseline.
Intra-abdominal hypertension (IAH) and abdominal compartment syndrome (ACS) have traditionally been treated surgically through emergent laparotomy. Intensivist-performed bedside drainage of free intra-peritoneal fluid or blood \[percutaneous catheter decompression (PCD)\] has been suggested as a less-invasive alternative to traditional open abdominal decompression (OAD). This study assesses the relative efficacy of PCD vs. OAD in reducing elevated intra-abdominal pressure (IAP).
The Accuryn Registry Study is an open-ended, global, multi-center, retrospective and prospective, single-arm data collection study with an FDA cleared device. The target population are cardiovascular surgery patients. Physiologic data measurements will be collected from enrolled subjects using electronic medical records and data streams via the Accuryn Monitoring System.
The Accuryn Registry Study is an open-ended, global, multi-center, retrospective and prospective, single-arm data collection study with an FDA cleared device. The target population are cardiovascular surgery patients. Physiologic data measurements will be collected from enrolled subjects using electronic medical records and data streams via the Accuryn Monitoring System.
The CAPSS Study is a retrospective and prospective, multi-center, single-arm post-market data collection study with an FDA cleared device. Physiologic data measurements will be collected from enrolled subjects using electronic health records and data streams via the Accuryn Monitoring System. Analysis of these data has the potential to be able to acutely guide resuscitation and monitor trends for emerging critical conditions.