The purpose of this study is to test a novel diagnostic immunoassay of platelet function and compare it to the current gold standard platelet function assay by testing the response to aspirin and clopidogrel in a group of healthy volunteers and severely obese individuals and comparing the accuracy of the two tests. The secondary goals will be to evaluate the pharmacodynamic parameters of the antiplatelet agents across the two testing modalities and refine the cutoffs used for the novel assay.
Clinical Trials
Clinical Trials
The mortality burden of trauma in the United States is substantial, and is currently the leading cause of death in warfare and in civilians below age 45. Infection and sepsis are leading causes of morbidity and death in early survivors. Pneumonia (PNA) occurs in 17-36% of ventilated trauma patients; far more than non-trauma patients. The long held dogmatic notion of a mechanical predisposition to development of pneumonia in trauma has lacked robust support. However, there is evidence of the innate immune response to injury plays a major role in increasing susceptibility to infection.
This application is for support of a Focused Program Award addressing the role that "danger signaling" due to "danger associated molecular patterns" (or DAMPs) derived from somatic tissue injuries play in altering innate immune signaling in the lung in ways that predisposes to PNA. This innate immune response plays a pivotal role in the development and progression of lung inflammation. The organization of the Focused Program Award is into six Projects with collaborators from the Departments of Surgery, Medicine and Anesthesiology at Beth Israel Deaconess Medical Center; the Department of Surgery at Brigham and Women's Hospital and the Departments of Biology and Biological Engineering at Massachusetts Institute of Technology.
The human subjects interaction portion of this project is covered in the Human Subjects & Samples Project of the Award, although the information and tissues obtained from this Project will be shared with the other Projects, and the activities planned for those Projects are outlined in this application.
This study is utilizing ultrasound measurement to measure neuromuscular disease status in adult patients. The hypothesis is the by quantifying ultrasound data, it is possible that ultrasound can be utilized as a tool to determine if a disease is responding to therapy or progressing.
The purpose of this protocol is to compare standard of care lung protective ventilation settings with an automated ventilator setting, called Adaptive Support Ventilation (ASV), in patients with acute respiratory distress syndrome (ARDS). This study will compare measurements (i.e. tidal volumes, driving pressure, respiratory rate (RR), compliance, peak airway pressures, plateau pressures, PEEP) with each ventilator technique, and will measure esophageal pressures to compare transpulmonary and respiratory system mechanics.
The objective of this project is to define the effectiveness and therefore the role of NIR vein finders in adult patients with difficult peripheral venous access. The specific objective of the proposed randomized controlled trial is to test the clinical success rate of placing peripheral venous catheters in 'difficult' access patients using traditional peripheral venous catheter placement compared to two established methods utilizing NIR vein imaging. The investigators hypothesize that the capability to successfully place lasting peripheral venous catheters is increased with the adjunct of the imaging technology, reducing the number of failed needle sticks, reducing the number of peripheral venous catheters placed throughout a patient's hospital stay, and reducing the need for more invasive catheters such as PICC lines.
A prospective registry evaluating the efficacy of EC-IC bypass in a subgroup of patients, specifically, patients with carotid occlusion and symptoms refractory to medical therapy and evidence for poor cerebrovascular reserve as evaluated by physiological testing (e.g. Diamox Challenge SPECT Scan). This subgroup includes:
Hospitalized unstable patient with crescendo or postural TIA's
Patients with multiple TIA's, limb-shaking TIA's, and/or cognitive decline despite medical therapy.
The purpose of this study is to better understand specific stress-management practices on mood, sleep, and physiology. Participants will be assigned to one of three interventions (they all active interventions - none are a "wait-list"). Each intervention asks participants to engage in a daily practice of 20 minutes per day for 8 weeks. Questionnaires and measures of heart rate and blood pressure will be collected at the start and end of the 8 weeks, including a virtual laboratory visit.
Treatment with paclitaxel-based endovascular devices (PED) has become a common treatment option for patients with peripheral artery disease (PAD) involving the femoral-popliteal artery. However, an aggregate level meta-analysis identified an association between the use of PED and increased all-cause mortality at both two and five-year follow-up intervals, though there are significant limitations of these analyses. Exploration of real-world data has been suggested as a means to further investigate the safety of PED. The current study explores the association of PED and mortality in real-world data using U.S. commercial claims from the FAIR Health data warehouse.
This is a pilot feasibility study of a group-based, mind body intervention for managing stress and fear of recurrence and promoting resiliency among adult cancer survivors.
To assess effect of local anesthetic into the preperitoneal space during laparoscopic hernia repair on post-operative pain.
The primary objective of this study is to determine the effectiveness of the NICO BrainPath™ hematoma evacuation system for patients between the ages of 18 and 80 years old with an intracerebral hematoma. Effectiveness will be defined as the ability to achieve either 70% reduction of intracranial hematoma or to achieve <15 ml residual hematoma volume following surgery.
Additionally, the study aims to compare the mortality and complication rate of patients who undergo minimally invasive, navigation guided endoport based evacuation of intracerebral hematoma with NICO BrainPath™ System as compared to non-operative, supportive standard of care.
The study is a prospective, non-randomized cohort study. 50 patients will be enrolled in Group A (NICO BrainPath™ system) and 50 patients will be matched retrospectively of similar diagnosis, undergoing standard of care from Epic). 50 patients will undergo minimally invasive, navigation guided endport based evacuation of intracerebral hematoma with NICO BrainPath™ System. The patient population receiving non-operative supportive care will be matched to the surgical patients based on age, gender, and location of hemorrhage.
This is a randomized double blinded trial to determine if a small dose of dexmedetomidine can prevent and relieve nausea and shivering, two of the more common complaints after cesarean delivery.
The investigators hypothesize that teaching ultrasound sonoanatomy to identify the L3-L4 interspace will improve resident's long term skill to correctly identify the interspace as compared to palpation alone.
The objective of this project is to define the effectiveness and therefore the role of NIR vein finders in adult patients with difficult peripheral venous access. The specific objective of the proposed randomized controlled trial is to test the clinical success rate of placing peripheral venous catheters in 'difficult' access patients using traditional peripheral venous catheter placement compared to two established methods utilizing NIR vein imaging. The investigators hypothesize that the capability to successfully place lasting peripheral venous catheters is increased with the adjunct of the imaging technology, reducing the number of failed needle sticks, reducing the number of peripheral venous catheters placed throughout a patient's hospital stay, and reducing the need for more invasive catheters such as PICC lines.
The use of neuromuscular blocking agents during surgery is associated with postoperative respiratory complications and increased risk of readmission to the hospital following ambulatory surgery. Understanding the clinical behavior of providers is essential in devising and assessing quality improvement projects since it is primarily individuals who determine the utilization of neuromuscular blocking drugs and reversal agents, not institutions. Therefore, the primary objective of this study is to determine the variability between individual anesthesia providers (attending physician, resident, nurse anesthetists) in the use of neuromuscular blocking drugs and reversal agents, using advanced statistical methods to adjust for differences in patient and procedure case mix. The investigators hypothesize that variance between individual anesthesia providers in the use of neuromuscular blocking drugs and reversal agents differs depending on provider type.
Following the publication of two case studies that reported behavioral benefit in ASD patients treated with omalizumab, the investigators will conduct a pilot trial to test the proof-of-concept efficacy of omalizumab in ASD patients with comorbid atopic disease. Investigators will evaluate behavioral improvement using three questionnaires. Investigators will also perform fMRI on all subjects and obtain serum samples for quantification of immunological biomarkers. If the trial is conclusive, the investigators will conduct a larger-scale, randomized-controlled trial to further understand the pathology of allergy in this subpopulation of ASD patients and the efficacy of this intervention.
Interstitial Lung Abnormalities (ILA) have been previously defined as nondependent changes affecting more than 5% of any lung zone on computed tomography (CT) scans of the lung. Several studies suggest that the prevalence of ILA in participants in non-pulmonary research studies ranges anywhere from 7-9%. Work over the last decade has shown that, despite previous characterization as an asymptomatic research finding, ILA has significant clinical and biological consequences. These include reduced exercise capacity, functional limitations, decreased lung volumes, increased mortality, and in some cases histopathology similar to Idiopathic Pulmonary Fibrosis (IPF). ILA have been detected in lung cancer screening cohorts, where the prevalence of ILA is estimated to be between (10%-20%) to those noted in other research cohorts. Given that a significant proportion of those will have progression, CT lung cancer screening (CTLS) cohorts represent an ideal catchment population for future research and clinical trials. Lahey Hospital and Medical Center was one of the earliest clinical centers to develop a CTLS program in the country. Investigators propose to qualitatively characterize ILA in a large clinical CTLS population.
The purpose of this study is to examine the role of an automatic polyp detection software (henceforth referred to as the research software) as a support system during colonoscopy; a procedure during which a physician uses a colonoscope or scope, to look inside a patient's rectum and colon. The scope is a flexible tube with a camera-to see the lining of the colon. The research software is used to aid in the detection of polyps (abnormal tissue growths in the wall of the colon and adenomas (pre-cancerous growths) during colonoscopy.
The research software used in this study was programmed by a company in Shanghai, which develops artificial intelligence software for computer aided diagnostics.
The research software was developed using a large repository (database or databases) of polyp images where expert colonoscopists outlined polyps and suspicious lesions. The software was subsequently developed and validated using several databases of images and video to operate in near real-time or within minutes of photographing the tissue. It is intended to point out polyps and suspicious lesions on a separate screen that stands behind the primary monitor during colonoscopy. It is not expected to change the colonoscopy procedure in any way, and the physician will make the final determination on whether or not to biopsy or remove any lesion in the colon wall.
The research software will not record any video data during the colonoscopy procedure. In the future, this software may help gastroenterologists detect precancerous areas and decrease the incidence of colon cancer in the United States.
The proposed study is a randomized, placebo-controlled clinical trial to test the efficacy of an oral Lactobacillus product dissolved in sterile saline and instilled into the urinary bladder in an attempt to colonize the urinary bladder as well as prevent UTIs.
The main purpose of this study is to determine the effects of controlling the heart rate of patients with septic shock using an intravenous medication called esmolol.
The investigators are conducting a study that will investigate the possible mechanisms of weight loss associated with exenatide treatment and the metabolic characteristics of high responders (i.e. subjects who achieve greater than 5% weight loss) to exenatide treatment. The investigators will also examine the magnitude and duration of weight loss among a cohort of high responders over 52 weeks of treatment, and at 3 and 6 months following treatment.
Hypothesis:
The mechanisms of weight loss with exenatide are not fully understood, and weight loss responses to exenatide are highly variable, possibly reflecting distinct metabolic parameters. By identifying and following a group of obese women who lose greater than 5% body weight after short-term exenatide treatment, the investigators can gain insights into the possible mechanisms of weight loss and assess long-term weight loss with this pharmacotherapeutic intervention.
The purpose of this research study is to evaluate non-invasive markers of celiac disease activity in subjects that are on a gluten-free diet, in remission from celiac disease who undergo gluten challenge.
The secondary aims of this protocol are to identify novel mediators important in the pathophysiology of celiac disease and to evaluate changes in metabolism with gluten exposure.
This study aims to implement an intervention based on multiple, individualized multifocal tACS stimulation sessions based on individual PET and MRI information in patients with amyloid-positive PET with the hope that this leads to microglia activation and decrease in cerebral amyloid and tau depositions in human patients with AD.
The purpose of this protocol is to conduct a pilot study to investigate whether pancreatic enzyme supplementation will improve symptoms in individuals with celiac disease who suffer persistent symptoms despite a gluten free diet. This protocol specifically aims to:
Evaluate the efficacy of pancreatic enzyme supplementation for reduction of gastrointestinal symptoms in patients with celiac disease on a gluten free diet.
Assess the ability of fecal elastase levels to predict response to pancreatic enzyme supplementation in patients with celiac disease on a gluten free diet.
The goal of this study is to assess the utility of a data visualization tool for providers' understanding patients' past microbiological culture sensitivities. Providers that are ordering antibiotics for patients with previous culture data in the medical record will be asked to answer questions regarding past sensitivity results. They will be randomized to either using the visualization tool before answering the questions or using the standard medical record tools. They will then be surveyed about their decision-making, knowledge, and the usefulness of the tool.
The purpose of this study is to investigate whether the use of inhaled anesthetics, compared to intravenous anesthetics, can affect the amount of lung inflammation and postoperative respiratory complications seen after cardiac surgery.
The overall goal of this study is to open up the promising treatment of repetitive transcranial magnetic stimulation (rTMS), which has been shown to be effective against seizures in patients with surface neocortical foci, to a much larger population of patients with mesial temporal lobe epilepsy (MTLE) and other forms of epilepsy with deep foci, who are not currently considered good rTMS candidates.
The investigators hypothesize that rTMS can modulate the hyperexcitable state in patients with deep seizure foci by targeting its usage to accessible cortical partner regions. In this study the investigators aim 1) to map the functional connectivity of the epileptogenic mesial temporal lobe in patients with medically refractory mesial temporal lobe epilepsy; and 2) to perform a randomized controlled assessment of repetitive transcranial magnetic stimulation protocols applied to specific neocortical targets in mesial temporal lobe epilepsy. The methods used in this study will include magnetic resonance imaging (MRI) of the brain, electroencephalography (EEG), and transcranial magnetic stimulation (TMS).
This is an interventional, sham controlled, double-blind study designed to investigate the safety, tolerability and efficacy of 40 Hz transcranial alternating current stimulation (tACS), a form of noninvasive brain stimulation, delivered for 6 weeks once daily in frontotemporal dementia (FTD) patients. Cognition, gamma EEG activity and brain metabolism via FDG-PET will be measured before and after the tACS intervention.
This is a randomized controlled trial which is designed to determine whether aggressive and frequent debridement of an acute post-surgical wound shortens healing time.
This is a planned single center prospective randomized study evaluating the safety and efficacy of low dose thymoglobulin as induction agent in renal transplant recipients. Inclusion criteria will be adult renal transplant recipients who are not sensitized against their potential donors. The patients who agree to participate in the study will be randomly assigned to either thymoglobulin at 1.25mg/kg x 3 doses or 0.75mg/kg x 3 doses. There will be 86 sealed envelopes to perform the randomization process. 43 envelopes with 1.25mg/kg dosing and the other 43 envelopes with 0.75mg/kg dosing. The investigators will sequentially choose the sealed envelopes at the time of the patient randomization process. All patients will be started on our standard immunosupression regimen of prograf/cellcept and a fast steroid taper. Data will be obtained from every patient for up to one year post-transplant.
The proposed project is designed to examine the effects of cognitive rehabilitation on brain structure and function in a randomized trial of 102 early course schizophrenia patients treated for 18 months with either cognitive enhancement therapy (CET) or an Enriched Supportive Therapy (EST) control, and then followed-up at 1-year post-treatment.
The purpose of this study is to determine if certain features of tumor specimens sampled prior to therapy can predict for the likelihood of responding to everolimus.
In this study, we aim to determine whether the combination of Ascorbic Acid (Vitamin C), Thiamine (Vitamin B1), and Corticosteroids improves the trajectory of organ failure and reduces mortality in patients with sepsis and septic shock as compared to placebo.
To study the effects of ubiquinol as a "metabolic resuscitator" in post-cardiac arrest.
This study will examine the effects of Isha Kriya meditation on stress and burnout among healthcare providers.
The main purpose of this study is to evaluate if neuromuscular blockade improves lactate clearance (and preliminary secondary clinical outcome measures) as compared to usual care in post-cardiac arrest patients undergoing targeted temperature management.
The main purpose of this study is to determine whether a rational strategy of EEG guided multimodal general anesthesia using target specific sedative and analgesics could result in enhanced recovery after anesthesia and surgery, decrease in postoperative delirium, and decrease in long term postoperative cognitive dysfunction up to 6 months following cardiac surgery.
The purpose of this study is to understand the relationship between intracranial pressure and airway pressures during mechanical ventilation. This study is a single-center, prospective cohort study to be conducted at Beth Israel Deaconess Medical Center. The investigators will recruit patients with severe brain injury (GCS 8 or less) who receive intracranial pressure monitoring and mechanical ventilation as part of their routine medical care. The primary endpoint is the change in intracranial pressure as a function of positive end-expiratory pressure. There is only one study encounter with safety monitoring for up to 24 hours after. No additional follow up is required.
Neuromuscular blocking agents' (NMBA) use during surgery is associated with postoperative respiratory complications and increased risk of readmission to the hospital following ambulatory surgery. Residual neuromuscular block (rNMB) after surgery is difficult to identify. We have recently developed the REsidual neuromuscular block Prediction Score (REPS), that predicts the risk for postoperative rNMB. Our primary objective is now to assess the predictive ability of the REPS for respiratory complications within seven days following general anaesthesia. The secondary objective is to compare the predictive values of REPS and train-of-four (TOF)-ratio below 0.90 for respiratory complications.
Adult patients evaluated at Lahey Clinic with known or suspected gastrointestinal or gynecologic malignancies and with an indication for diagnostic laparoscopy will be offered participation in the study. The proposed study is a randomized, controlled feasibility trial with crossover design. The study's aim is to evaluate the effectiveness of laparoscopic narrow band imaging (NBI) compared to standard white-light laparoscopy for detection of peritoneal cancer metastases. Study patients will undergo laparoscopic evaluation of the peritoneal cavity using a routine white-light videolaparoscope with the capability of NBI. The order of white-light and NBI laparoscopy will be randomized for each patient (crossover design). Frozen-section histopathology biopsies will be retrieved of all suspicious-appearing abnormalities using best clinical practices. The number of detected peritoneal metastases will be compared between each diagnostic laparoscopy technique. To gauge the rate of potentially missed metastases, peritoneal cancer recurrence will be surveyed through a 1-year follow-up.
This study will include 60 subjects with medication-refractory depression undergoing transcranial magnetic stimulation (TMS) to the left dorsal lateral prefrontal cortex (DLPFC). In order to obtain good quality data and account for attrition, 80 subjects will be recruited. Subjects will be recruited from the Clinical Program of FDA approved TMS at the Berenson-Allen Center and the Butler TMS Clinic (40 per site). Subjects will undergo an hour-long MRI scanning session, an optional DNA-sample collection, up to three 20 minute neuronavigation sessions for marking the site of TMS stimulation, questionnaires, and a behavioral testing battery before and after their TMS treatment course. The task battery will last 45-60 minutes and consist of the Emotion Conflict Resolution (ECR) task, Multi-Source Interference Task (MSIT), War Game (Gambling) task, and Associative Learning with Reversal task. Subjects' scores on the Hamilton Depression Rating Scale (HDRS) and Beck Depression Inventory (BDI) will also be assessed before and after the TMS course. MRI data will be utilized to identify brain regions whose connectivity to the stimulation site co-varies with the aforementioned objective measures of symptom improvement.
TeamSTEPPS (Team Strategies and Tools to Enhance Performance and Patient Safety) is an evidence-based teamwork system designed to improve communication and teamwork skills among health professionals. The program was developed by the Agency for Healthcare Research and Quality (AHRQ) and the Department of Defense's Patient Safety Program as the national standard for team training in health care.
The purpose of this study is to evaluate the effect of the TeamSTEPPS program on the team knowledge, skills and attitudes and patient safety at Planned Parenthood affiliates nationwide.
The investigators hypothesize that implementation of the TeamSTEPPS program will be associated with improved team knowledge, skills, and attitudes; clinical outcomes; and process outcomes.
Aims:
To assess the effect of the TeamSTEPPS training program on team communication and effective team work
To assess the effect of the TeamSTEPPS training program on process outcomes
To assess the effect of the TeamSTEPPS training program on clinical outcomes
The 24-hour-a-day, 7-day a week, work-world arrived within our lifetimes, and is here to stay. Americans are working more and more, frequently at multiple jobs. The pattern of short sleep during the week followed by attempts to recover on the weekend is in common practice, but we know little of the associated health risks. What is the cost in terms of increasing known risk markers for cardiovascular disease, of repeated nights of insufficient sleep, and is this cost compounded with repetition, without adequate recovery? Evidence is accumulating to suggest that short sleep duration is linked to the development of metabolic and inflammation-associated diseases, such as cardiovascular disease. Mechanisms involved in the development of cardiovascular disease include impaired vascular function and inflammation. The current proposal is designed to investigate the effects of repeated periods of short nocturnal sleep duration in 4 cycles (each cycle consisting of 3 nights of 4 hours of sleep opportunity per night), and each cycle of short sleep followed by a single night of recovery sleep. Vascular reactivity will be assessed using brachial artery flow mediated dilation, and microcirculatory vasodilation will be assessed using perfusion imaging techniques. The dependence of IL-6 and sVCAM-1 as measured in peripheral circulation, on vascular function, will also be investigated.
The VQI-DELTA Paclitaxel Device Safety Analysis seeks to assess the comparative safety of paclitaxel coated balloons and stents in the treatment of peripheral artery disease (PAD) through analysis of the VQI Peripheral Vascular Intervention (PVI) registry module using the DELTA system.
The goal of this study is to evaluate how much quercetin or isoquercetin is absorbed after a single dose and evaluate for pharmacokinetic inhibition of protein disulfide isomerase. Pharmacodynamic studies will also be performed in an additional cohort of 10 patients with evidence of antiphospholipid antibodies
This is a randomized, prospective controlled trial in patients undergoing cardiac surgery, specifically on-pump coronary artery bypass grafting, comparing level of administered oxygen and partial pressure of arterial oxygen in the operating room and its impact on a widely-used and validated neurocognitive score, the telephonic Montreal Cognitive Assessment (t-MoCA), throughout the hospital stay and at 1 month, 3 months, and 6 postoperatively. It is hypothesized that cardiac surgical patients who undergo normoxic conditions throughout the intraoperative period will have better neurocognitive function than those with maintenance of hyperoxia.
We are doing this clinical trial in order to evaluate two different treatments for non-fluent aphasia: Melodic Intonation Therapy (MIT) and Speech Repetition Therapy (SRT). MIT uses a simple form of singing, while SRT uses intensive repetition of a set of words and phrases. We want to see which intensive form of treatment is more effective in leading to an improvement in speech output compared to a no-therapy control period, and whether either treatment can cause changes in brain activity during speaking and changes in brain structure. We will use a technique known as functional Magnetic Resonance Imaging (fMRI) to measure blood flow changes in the brain and structural MRI that assess brain anatomy and connections between brain regions. We will use fMRI to assess brain activity while a patient speaks, sings, and hums. We will assess changes in brain activity and in brain structure by comparing scans done prior to treatment to scans obtained after treatment and we will also examine changes between treatment groups. We will correlate changes in brain activity and brain structure with changes in language test scores.
Alzheimer's Disease (AD) is characterized by amyloid-β (Aβ) plaque buildup and phosphorylated tau (p-tau) in the brain, as well as widespread neurodegeneration. Amyloid-β and tau are proteins that build up in the brain that may contribute to memory problems. The evidence suggests that both amyloid and tau play a critical role in AD and interventions that reliably and safely decrease the intracerebral burden of amyloid or tau could potentially be of marked clinical importance. Currently, therapeutic options are very limited and while there are pharmacologic interventions that transiently improve cognitive function, there are no treatments that alter disease progression.
The purpose of this study is to see if multiple daily sessions of non-invasive brain stimulation can affect brain activity to decrease the amount of amyloid and tau in people with AD as compared to Sham (placebo) stimulation. The type of brain stimulation that will be used is called transcranial alternating current stimulation (tACS). This study will investigate different doses of tACS (2-4 weeks) and assess safety. The hope is that tACS will decrease the amount of amyloid and tau and improve memory and thinking in people with AD.
The purpose of this research study is to collect tumor samples at the time of surgery and store them for possible use as part of an experimental vaccine study for the participants cancer in the future.
Patients with endometrial cancer who have planned robotic laparoscopic hysterectomy and full bilateral pelvic and para-aortic lymphadenectomy will receive injections of a fluorescent dye, Indocyanine green (ICG). ICG spreads through the lymphatic system, and will be visualized using near-infrared (NIR) imagers. Upon visualization of the path of the ICG, sentinel lymph nodes (SLNs), the first nodes to receive drainage from the primary tumor, will be identified. SLNs will be surgically removed and provided to Pathology for evaluation. Non-sentinel nodes will also be surgically removed, as is consistent with routine medical care for these patients, and given to Pathology for evaluation. A positive SLN may be the most accurate identifier of the extra-uterine spread of disease, and will provide information about the extent of surgical node removal necessary.