59 Clinical Trials for Various Conditions
Although the majority of premature neonates \< 30 weeks gestion require positive pressure ventilation (PPV) at birth, the optimal interface to provide PPV has not been determined. Preferably this support would be provided by non-invasive means to prevent the development of bronchopulmonary dysplasia. Resuscitation with a face mask, single nasal tube, nasal prongs, and/or LMA are all approved methods of resuscitation per NRP as of 2010. Face masks have been associated with more dead space, air leak and airway obstruction however are the most commonly used interface. Recently, the Trigeminal Cardiac Reflex has been described, which can be induced with the placement of a facemask, resulting in bradycardia and apnea. Bi-nasal prongs (RAM cannula) have been found in studies to be associated with lower intubation rates in the delivery room (down to 24 weeks gestation), less need for epinephrine, chest compressions, and subsequent invasive ventilation. In addition to the potential practical advantages of bi-nasal prong resuscitation, there is evidence to suggest that ventilation through the nose may stimulate the subepithelial receptors of the upper airways causing an increase in respiratory rate and depth.
The purpose of this research is to investigate the efficacy of the newly designed ventilation grip device (MVG device).
This research study is being done to investigate the effect of changing an infant's body position on how hard the baby works to breathe, the baby's oxygen level, the baby's carbon dioxide level, the baby's lung volume, the baby's lung compliance (ability of the lung to expand and fill with air), and how frequently the baby develops clinically significant events such as apnea (baby stops breathing on his own), bradycardia (low heart rate), and desaturation (low oxygen) events.
To evaluate the duration to reach full feeds by comparing continuous gavage feeds versus bolus feeds in preterm infants who are on non-invasive respiratory support (RAM cannula - short binasal prongs).
This proposal will test the feasibility of implementing an assist volume control ventilation protocol in patients receiving mechanical ventilation in the medical intensive care unit. The trial will consist of a before-and-after trial design of block assignment to either adaptive pressure control (baseline) or assist volume control . This is a feasibility study looking at the management of patients in the ventilator.
To evaluate the effect of Dornase alfa on preterm and late preterm neonates with ventilator associated pulmonary infections. Dornase alfa has been effective in the treatment of pulmonary infections in patients with cystic fibrosis by aiding mucus clearance. The bacteria causing pulmonary infections in cystic fibrosis patients is similar to those infecting preterm infants. The investigators expect that dornase alfa therapy will improve recovery from ventilator associated pulmonary infections in preterm infants.
The goal of this study is to compare two different ways of helping patients with a condition called sepsis who need help breathing using a machine called a ventilator. The investigators want to study which way of setting the ventilator is better for the lungs. Here are the main questions the investigators want to answer: 1. How does the amount of air in the lungs and the way it moves differ between the two ways? 2. How does the way air spreads out in different parts of the lungs differ between the two ways? In this study, the investigators will take special pictures of the lungs using a machine called a CT scan. The pictures will show us how much the lungs stretch and how much air is in different parts of the lungs. The investigators will compare two different ways of using the ventilator: one personalized for each patient based on their breathing, and another way that is commonly used. By comparing these two ways, the investigators hope to learn which one is better for helping patients with sepsis who need the ventilator. This information can help doctors make better decisions about how to care for these patients and improve their breathing.
The purpose of this study is to determine, in preterm infants less than 37 weeks gestation with respiratory distress who are ventilated in the first 48 hours after birth, if mid frequency ventilation strategy using ventilator rate of ≥ 60 to ≤ 150 per minute compared with standard frequency ventilation strategy using ventilator rates of ≥ 20 to \< 60 per minute will increase the number of alive ventilator-free days after randomization and reduce the risk of ventilator induced lung injury.
Lung protective ventilation (LPV) has been proposed to reduce the incidence of postoperative pulmonary complications (PPCs), and protect against ventilator induced lung injury (VILI).
Ventilator associated events (VAE) is a quality metric defined by 48 hours of stability followed by 48 hours of escalation of ventilator settings within the ICU. VAE have been associated with poor outcomes and increases the cost of care, yet is not easy to avoid. Operationalizing all the standards of care known to improve outcomes of those requiring mechanical ventilation in the critical care environment requires a comprehensive approach. ICU teams are encouraged to follow best practice protocols to help liberate and prevent VAEs. Yet, compliance with protocols in most ICUs is suboptimal for multiple reasons. With the advent of computerized mechanical ventilators capable of streaming data from breath to breath and biomedical integration systems (BMDI) such as Capsule (UTMB's BMDI system), software systems have been developed to help identify variances in the standard of care. Automation in near real-time ventilator data feedback has been shown to reduce the incidences of VAEs. This quality improvement project will leverage Vyaire's Respiratory Knowledge Portal (RKP) to collect and store meaningful data regarding ventilator-associated events (VAE), alarm policy compliance, ventilator weaning, and lung protective analytics. Goals: 1. To collect quality metrics utilizing RKP from patients requiring mechanical ventilation over a 3-4-month period for a retrospective baseline analysis. 2. Provide the RKP tool to the ICU team to determine if the use of RKP's webportal and Messenger Zebra phone app improves quality of mechanical ventilation and outcomes. 3. To determine a return on investment (ROI) for a software system like RKP.
The purposes of our study are to: 1) determine the incidence of paradoxical response to chest wall loading in mechanically ventilated patients; 2) identify sub-populations in which it is most likely to occur (e.g., severe ARDS); and 3) standard the bedside procedure for demonstrating this physiology.
ASOP is a prospective cohort study comparing three methods for assessing risk of self-induced lung injury in patients with acute respiratory failure being managed with pressure-support ventilation. We will describe the relationship between three different assessment methods for risk of self-induced lung injury and compare them to a gold standard measurement.
Respiratory failure occurs when the lung fails to perform one or both of its roles in gas exchange; oxygenation and/or ventilation. Presentations of respiratory failure can be mild requiring supplemental oxygen via nasal cannula to more severe requiring invasive mechanical ventilation as see in acute respiratory distress syndrome (ARDS).It is important to provide supportive care through noninvasive respiratory support devices but also to minimize risk associated with those supportive devices such as ventilator induced lung injury (VILI) and/or patient self-inflicted lung injury (P-SILI). Central to risk minimization is decreasing mechanical stress and strain and optimizing transpulmonary pressure or the distending pressure across the lung, minimizing overdistention and collapse. Patient positioning impacts ventilation/perfusion and transpulmonary pressure. Electrical impedance tomography (EIT) is an emerging technology that offers a noninvasive, real-time, radiation free method to assess distribution of ventilation at the bedside. The investigators plan to obtain observational data regarding distribution of ventilation during routine standard of care in the ICU, with special emphasis on postural changes and effects of neuromuscular blockade, to provide insight into ventilation/perfusion matching, lung mechanics in respiratory failure, other pulmonary pathological processes.
Previous clinical trials in adults with acute respiratory distress syndrome (ARDS) have demonstrated that ventilator management choices can improve Intensive Care Unit (ICU) mortality and shorten time on mechanical ventilation. This study seeks to scale an established Clinical Decision Support (CDS) tool to facilitate dissemination and implementation of evidence-based research in mechanical ventilation of infants and children with pediatric ARDS (PARDS). This will be accomplished by using CDS tools developed and deployed in Children's Hospital Los Angeles (CHLA) which are based on the best available pediatric evidence, and are currently being used in an NHLBI funded single center randomized controlled trial (NCT03266016, PI: Khemani). Without CDS, there is significant variability in ventilator management of PARDS patients both between and within Pediatric ICUs (PICUs), but clinicians are willing to accept CDS recommendations. The CDS tool will be deployed in multiple PICUs, targeting enrollment of up to 180 children with PARDS. Study hypotheses: 1. The CDS tool in will be implementable in nearly all participating sites 2. There will be \> 80% compliance with CDS recommendations and 3. The investigators can implement automatic data capture and entry in many of the ICUs Once feasibility of this CDS tool is demonstrated, a multi-center validation study will be designed, which seeks to determine whether the CDS can result in a significant reduction in length of mechanical ventilation (LMV).
This is a research study to determine if identifying an optimal level of positive end-expiratory pressure (PEEP) targeted specifically to individualized patient characteristics will shorten the time on the ventilator. Participants will have catheter placed through the nose into the esophagus to measure the pressure inside the chest. This catheter will remain until the patient is freed from the ventilator. Participants will be randomized to usual care or to have the level of PEEP determined by the esophageal balloon pressure readings. The total time spent on the ventilator will be recorded.
This is a prospective observational follow-up study of children enrolled in a single center randomized controlled trial (REDvent). Nearly 50% of adult Acute Respiratory Distress Syndrome (ARDS) survivors are left with significant abnormalities in pulmonary, physical, neurocognitive function and Health Related Quality of Life (HRQL) which may persist for years.Data in pediatric ARDS (PARDS) survivors is limited. More importantly, there are no data identifying potentially modifiable factors during ICU care which are associated with long term impairments, which may include medication choices, or complications from mechanical ventilator (MV) management in the ICU including ventilator induced lung injury (VILI) or ventilator induced diaphragm dysfunction (VIDD). The Real-time effort driven ventilator (REDvent) trial is testing a ventialtor management algorithm which may prevent VIDD and VILI. VIDD and VILI have strong biologic plausibility to affect the post-ICU health of children with likely sustained effects on lung repair and muscle strength. Moreover, common medication choices (i.e. neuromuscular blockade, corticosteroids) or other complications in the ICU (i.e. delirium) are likely to have independent effects on the long term health of these children. This proposed study will obtain serial follow-up of subjects enrolled in REDvent (intervention and control patients). The central hypothesis is that preventing VIDD, VILI and shortening time on MV will have a measureable impact on longer term function by mitigating abnormalities in pulmonary function (PFTs), neurocognitive function and emotional health, functional status and HRQL after hospital discharge for children with PARDS. For all domains, the investigators will determine the frequency, severity and trajectory of recovery of abnormalities amongst PARDS survivors after ICU discharge, identify risk factors for their development, and determine if they are prevented by REDvent. They will leverage the detailed and study specific respiratory physiology data being obtained in REDvent, and use a variety of multi-variable models for comprehensive analysis. Completion of this study will enable the investigators to identify ICU related therapies associated with poor long term outcome, and determine whether they can be mitigated by REDvent.
The goal of this study is to investigate the effect of depth of neuromuscular block (NMB) on global and regional (dependent versus nondependent) respiratory mechanics during laparoscopic surgery. Furthermore, we will investigate if the level of NMB influences intraoperative hemodynamic and cerebral oxygenation.
Objectives 1. To characterize mechanical ventilation practices during general anesthesia for surgery 2. To assess the dependence of intra-operative and post-operative pulmonary complications on intra-operative Mechanical Ventilation (MV) settings
Babies who are born prematurely often develop a chronic lung disease called bronchopulmonary dysplasia (BPD). BPD puts babies at higher risk for problems with growth and development. Diuretics, such as furosemide, are frequently used in the management of early BPD). Many clinicians use informal trials of therapy to see if a baby responds to diuretics in the short-term before starting chronic diuretic therapy. Despite frequent use of diuretics, it is unclear how many babies truly respond to therapy and if there are long-term benefits of diuretic treatment. Designing research studies to figure this out has been challenging. The Pragmatic Research on Diuretic Management in Early BPD (PRIMED) study is a feasibility pilot study to help us get information to design a larger trial of diuretic management for BPD. Key questions this study will answer include: (1) Can we use an N-of-1 trial to determine whether a particular baby responds to furosemide? In an N-of-1 trial, a baby is switched between furosemide and placebo to compare that particular infant's response on and off diuretics. It is a more rigorous approach to the informal trials of therapy that are often conducted in clinical care. We hope to learn how many babies have a short-term response to furosemide ("responders"); (2) how many babies will still be on respiratory support at the end of the N-of-1 trial? This will help us determine how many patients would be eligible to randomize to chronic diuretic therapy in the second phase of the larger trail, and (3) if a baby is identified as a short-term responder, how many parents and physicians would be willing to randomize the baby to chronic diuretics (3 months) versus placebo in the longer trial?
Invasive mechanical ventilation is one of the most important and life-saving therapies in the intensive care unit (ICU). In most severe cases, extracorporeal lung support is initiated when mechanical ventilation is insufficient. However, mechanical ventilation is recognised as potentially harmful, because inappropriate mechanical ventilation settings in ICU patients are associated with organ damage, contributing to disease burden. Studies revealed that mechanical ventilation is often not provided adequately despite clear evidence and guidelines. Variables at the ventilator and extracorporeal lung support device can be set automatically using optimization functions and clinical recommendations, but the handling of experts may still deviate from those settings depending upon the clinical characteristics of individual patients. Artificial intelligence can be used to learn from those deviations as well as the patient's condition in an attempt to improve the combination of settings and accomplish lung support with reduced risk of damage.
Primary Research Question for the Full ULTIMATE Randomized Clinical Trial (RCT): What is the effect of ultra-protective ventilation facilitated by extracorporeal membrane oxygenation (ECMO) versus best current conventional ventilation (CV) on all-cause hospital mortality among patients with early moderate-severe acute respiratory distress syndrome (ARDS)? Secondary Research Questions: Among patients with early moderate-severe ARDS, what is the effect of ultra-protective ventilation versus CV on: (1) duration of mechanical ventilation; (2) duration of ICU and hospital stay; (3) organ dysfunction; (4) barotrauma; and (5) mortality at other time-points (ICU discharge, 28-day, 60-day)? The ULTIMATE Pilot Study: Before embarking on a definitive multinational trial to address the questions listed above, the ULTIMATE Pilot Study has these 3 specific feasibility objectives: 1. To assess adherence to our explicit mechanical ventilation protocols, with particular focus on delivered tidal volumes in both groups; 2. To estimate the rate of patient recruitment and understand barriers to recruitment; and 3. To measure and understand the reasons for crossovers or rescue by ECMO in the control group. In addition, we will monitor safety issues, recording serious adverse events in both groups.
Patients in end-stage cardiac failure and/or respiratory failure may be started on a rescue therapy known as Extracorporeal Membrane Oxygenation (ECMO). One of the major clinical questions is how to manage the ventilator when patients are on ECMO therapy. Ventilator Induced Lung Injury (VILI) can result from aggressive ventilation of the lung during critical illness. VILI and lung injury such as Acute Respiratory Distress Syndrome (ARDS) can further increase the total body inflammation and stress, this is known as biotrauma. Biotrauma is one of the mechanisms that causes multi-organ failure in critically ill patients. One advantage of ECMO is the ability to greatly reduce the use of the ventilator and thus VILI by taking control of the patient's oxygenation and acid-base status. By minimizing VILI during ECMO we can reduce biotrauma and thus multi-organ failure. Since the optimal ventilator settings for ECMO patients are not known, we plan to study the impact of different ventilator settings during ECMO on patient's physiology and biomarkers of inflammation and injury.
Positive end-expiratory pressure (PEEP) is used in premature infants receiving mechanical ventilation to maintain lungs open and facilitate gas exchange. When ventilation/perfusion mismatch is present, areas of the lung that are open for gas exchange do not match up with areas of the lung that are receiving blood for gas exchange. This study measures the feasibility of enrolling and completing study maneuvers in premature infants for a prospective study measuring the responsiveness of V/Q mismatch to changes in the amount (or level) of PEEP.
Continuous positive airway pressure (CPAP) is used in premature infants to maintain lungs open and facilitate gas exchange. When ventilation/perfusion (V/Q) mismatch is present, areas of the lung that are open for gas exchange do not match up with the areas of the lung that are receiving blood for gas exchange. This study measure the responsiveness of V/Q mismatch to changes in the amount (or level) of CPAP.
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 purpose of this study is to compare airway pressure release ventilation (APRV) to conventional mechanical ventilation (MV) in patients with acute lung injury (ALI) to determine if APRV can reduce agitation, delirium, and requirements for sedative medications. We will also compare markers of inflammation in the blood and lung to determine if APRV reduces ventilator-induced lung injury (VILI), compared to conventional mechanical ventilation. The proposed study is a randomized, crossover trial. We plan to enroll 40 patients with ALI and randomize to APRV or conventional MV for 24 hours. After this time the patients will be switched to the alternative mode of ventilation (MV or APRV) for another 24 hours. To assess breathing comfort, at the end of each 24-hour period we will measure the amounts of sedative and analgesic medications used. We will also measure the concentrations of markers of inflammation in the blood and lung as measures of VILI. Finally, throughout the study we will compare the adequacy of gas exchange with APRV compared to conventional MV.
This study will compare two ventilator modes in mechanically ventilated patients with acute lung injury. Acute lung injury (ALI) is a condition in which the lungs are badly injured and are not able to absorb oxygen the way healthy lungs do. About 25% of patients who are ventilated get ALI. ALI causes 75,000 deaths in the US each year. Ventilators can be set to work in different ways, called modes. One mode, called ARDSNet, pumps a small amount of air into the patient's lungs and then most of the air is released prior to the next breath. Another mode, called Airway pressure release ventilation (APRV), keeps air in the lungs longer between breaths. Both of these modes are currently used at this hospital. The investigators think APRV may help patients with ALI, but we do not know for sure.
Many extremely premature infants, born before 28 weeks' gestation age, require immediate help with breathing after birth. Positive pressure ventilation (PPV) using a device called a T-piece resuscitator is a common method. PPV is needed to establish proper lung function, improve gas exchange, and encourage the infant to breathe spontaneously. However, T-piece resuscitators have limitations, like a lack of visual feedback and variable settings, which may result in reduced effectiveness of PPV. Improving PPV effectiveness may reduce the need for more invasive procedures, such as intubation, which pose an increased risk of complications and death for these fragile infants. A novel approach, that may overcome the above limitations and deliver PPV with precise settings through a nasal mask, is to use a ventilator to deliver PPV (V-PPV) using a respiratory mode called nasal intermittent positive pressure ventilation (NIPPV). While NIPPV is commonly used in neonatal intensive care units to support breathing in premature infants, the impact of V-PPV use during immediate post-birth stabilization needs to be studied. Preliminary data from our recent single-center study confirmed the feasibility of using V-PPV for resuscitation of extremely premature babies and indicated its potential superiority with a 28% decrease in the need for intubation compared to historical use of T-piece. This promising innovation may enhance outcomes for these vulnerable infants by refining the way we provide respiratory support in their critical first moments. The research objective is to compare the clinical outcomes of extremely premature infants receiving manual T-piece versus V-PPV during immediate post-birth stabilization. The primary aim is to evaluate the impact of V-PPV on major health complications or death. This study seeks to provide insights into improving the care and outcomes of these infants during a critical stage of transition from fetus to newborn.
Modern intensive care units (ICUs) are increasingly adopting newer modes of mechanical ventilation such as adaptive pressure control (APC) modes but there are limited data available regarding risks and benefits of newer modes versus traditional ventilation modes. APC can inadvertently deliver high tidal volumes, which maybe harmful. High tidal volumes may be unrecognized by the provider, due to the complexities of ventilator algorithms and patient interactions. The objective of this aim is to identify risk factors for excess tidal volumes in patients on adaptive pressure control.
The goal of this observational study is to compare pulmonary health parameter measurements from the VQm PHM™ to existing clinical measurements. The main questions it aims to answer are: * Confirm the performance of non-invasive pulmonary health parameter shunt fraction value found on the VQm PHM™ when compared to available reference measurements. * Confirm the performance of non-invasive pulmonary health parameter pulmonary blood flow, functional residual capacity and physiological dead space found on the VQm PHM™ when compared to available reference measurements.