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45 active trials for Respiratory Insufficiency

Clinical Efficacy in Relief of Dyspnea by HVNI: Evaluation of New Device Equivalence

This study will evaluate the ability of a new High Velocity Nasal Insufflation [HVNI] device design to effect ventilation and related physiological responses relative to the current HVNI device design.

Start: February 2021

More Air - Better Performance - Faster Recovery

The objective of this study is to investigate i) the effect of 3 weeks IMT to adults post-stroke to maximal inspiratory pressure (MIP) and ii) the effects of 3 weeks IMT to the degree of dependency in activities of daily living, endurance in gait, fatigue, voice volume, phonation endurance, and expiratory function. Methods/Design: Randomised controlled trial (RCT) comparing IMT to conventional neurorehabilitation (usual practise). 80 patients, with reduced maximal inspiration pressure (MIP) hospitalized at a specialized neurorehabilitation hospital in Denmark will be included.

Start: February 2021

Transpulmonary Pressures in Mechanical Ventilated Patients With Morbid Obesity

The study consists in determine the transpulmonary pressure in morbidly obesity patients that require mechanical ventilation. both gender only adults Medical intensive care patients.

Start: January 2018

Influence of a Multi-parametric Optimization Strategy for General Anesthesia on Postoperative Morbidity and Mortality

With the increasing aging population demographics and life expectancies, the number of very elderly patients undergoing surgery is rising. Elderly patients constitute an increasingly large proportion of the high-risk surgical group. Cardiac complications and postoperative pulmonary complications are equally prevalent and contribute similarly to morbidity, mortality, and length of hospital stay. Specific optimization strategy of general anesthesia has been tested in high-risk patients undergoing major surgery to improve outcomes. Our hypothesis is that a combined optimization strategy of anesthesia concerning hemodynamic, ventilation, and depth of anesthesia may improve short- and long- term outcome in elderly undergoing high risk surgery.

Start: February 2017

Open Lung Strategy in Critically Ill Morbid Obese Patients

The goal of this interventional crossover study in morbidly obese intubated and mechanically ventilated patients is to describe the respiratory mechanics and the heart-lung interaction at titrated positive end-expiratory pressure levels following a recruitment maneuver with transthoracic echocardiography and electric impedance tomography imaging.

Start: April 2016

Validation of a Non-Invasive Device for Thoracoabdominal Asynchrony-Based Respiratory Effort Assessment in Pediatric Patients

The investigators hypothesize that a simple 3-point tracking device that uses motion sensors attached to the abdomen and chest of a child will provide information regarding thoracoabdominal asynchrony (TAA), a major component of respiratory distress, and ultimately help guide a clinician to initiate, escalate, de-escalate, or stop respiratory support interventions. AIMS To determine if the TAA-monitoring device can be used to detect differences in respiratory synchrony in a manner that is clinically applicable. The investigators hope that the device will detect 1) major asynchrony events in a timely manner so as to prompt clinician intervention during future use; and 2) asynchrony events that may be less visible to the naked eye that may be precursors to more severe events.

Start: October 2020

Systematic Evaluation by an Intensivist of Hematological Malignancy Patients Presenting With Acute Respiratory or Hemodynamic Failure

Over the last two decades, the number of patients with hematological malignancies (HMs) admitted to the ICU increased and their mortality has dropped sharply. Patients with HMs increasingly require admission to the intensive care unit (ICU) for life-threatening events related to the malignancy and/or treatments, with immunosuppression being a major contributor. Whether the increase in ICU admissions is related to increased referrals by hematologists and/or to increased admissions by intensivists is unknown. The criteria used for ICU referral and admission decisions have not been extensively evaluated. Finally, the links between admission policies and treatment-limitation decisions are unclear, but ICUs with broad admission policies may change the treatment goals based on the response to several days of full-code management. The aim of this study is to evaluate the impact of a systematic evaluation by an intensivist of HMs patients presenting with acute respiratory and/or hemodynamic failure.

Start: February 2012

Nasal High-frequency Jet Ventilation (nHFJV) Following Extubation in Preterm Infants

Very low birth weight infants are at increased risk of requiring prolonged duration of mechanical ventilation and multiple intubations, both of which are risk factors for ventilator-induced lung injury and BPD. Thus, it is important to investigate respiratory support methods that are able to effectively oxygenate and ventilate these high risk preterm infants while reducing their risk of lung injury. Nasal high-frequency ventilation is one potential intervention that may decrease the risk of respiratory failure in very low birth weight infants. Small studies have shown effective respiratory support over short time periods in infants, however these studies use nasal high-frequency oscillatory ventilation. To the investigators' knowledge there is no published studies looking at the use of nasal high-frequency jet ventilation in this high risk population. Use of non-invasive high frequency ventilation (HFV) has been described as a rescue method following failure of other non-invasive ventilator modes or as a means to increase the success post-extubation. When used as invasive high frequency ventilation, high frequency oscillatory ventilation (HFOV) or high frequency jet ventilation (HFJV) utilize supraphysiologic respiratory rates and small tidal volumes which has been shown to inflict less lung injury than conventional modes of ventilation. Using a mechanical newborn lung model, nasal HFV has improved CO2 removal when compared to conventional NIPPV. Animal studies in the lab of Kurt Albertine have shown improved ventilation and oxygenation in the high frequency nasal ventilation group versus the mechanical ventilation group in a preterm lamb model leading towards better alveolar formation noted histologically. The investigators hypothesize that extubation of very preterm infants to nHFJV will significantly decrease the rates of reintubation compared to those infants extubated to NIPPV.

Start: April 2019

Partial Neuromuscular Blockade in Acute Respiratory Distress Syndrome

PNEUMA is a preliminary safety and feasibility trial of a novel approach to the titration of neuromuscular blockade (NMB) to safe spontaneous breathing in patients with severe acute respiratory distress syndrome (ARDS) supported with veno-venous extracorporeal membrane oxygenation (VV-ECMO).

Start: October 2020

Convalescent Plasma in the Treatment of Covid-19

One hundred patients hospitalized and in need of oxygen treatment due to Covid-19 should be randomized and 50% treated with 200 ml convalescent plasma x 3 and 50% given ordinary treatment. Primary outcome is number of days the patients need oxygen within 28 days from inclusion. Secondary outcome is number of days in hospital, number of days in respirator and mortality. Side effects of treatment is monitored.

Start: April 2020

Automated Oxygen Control by O2matic to Patients Admitted With Acute Hypoxemia

The aim of this study is to examine if automated oxygen delivery with O2matic allows for faster weaning from oxygen supply and better oxygen control than manually controlled oxygen therapy for patients admitted to the emergency department with acute hypoxemia. Furthermore it will be tested if O2matic compared to manual control allows for earlier discharge.

Start: October 2019

?ohort Study to Evaluate Exacerbations, Respiratory Symptoms, Physical Exercise Intolerance and Lung Functions Among Participants Who Use IQOS With Heatsticks Compared to Smokers of Conventional Cigarettes

This study evaluates frequency of exacerbations, respiratory symptoms, physical exercise intolerance and abnormal lung functions among participants who use IQOS with heatsticks compared to smokers of conventional cigarettes

Start: December 2017

Telmisartan in Respiratory Failure Due to COVID-19

Rationale: The renin-angiotensin-aldosterone system (RAAS) dysregulation may play a central role in the pathophysiology of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection associated acute lung injury (ALI) / acute respiratory distress syndrome (ARDS). In the RAAS, Angiotensin I (Ang I) is converted to angiotensin II (Ang II) by angiotensin converting enzyme (ACE). Ang II mediates vasoconstrictive, pro-inflammatory and pro-oxidative effects through agonism at Ang II type 1 receptor (AT1R). ACE2 converts Ang II to angiotensin 1-7 (Ang1-7), which finally binds to Mas receptor (MasR) and mediates many beneficial actions, including vasodilation and anti-inflammatory, anti-oxidant and antiapoptotic effects. ACE2, a homologue of ACE, is an integral cell membrane protein with a catalytic domain on the extracellular surface exposed to vasoactive peptides. SARS-CoV-2 penetrates the cell through ACE2, and the increase of this receptor (due to the use of ACE inhibitors or angiotensin receptor blockers [ARBs]) may facilitate SARS-CoV-2 infection, which might increase the risk of developing severe and fatal SARS-CoV-2 infection. However, through upregulation of ACE2, ACE inhibitors/ARBs can exert anti-inflammatory and antioxidative effects, which may be beneficial in preventing ALI and ARDS. Objective: To evaluate the effectiveness and safety of telmisartan in respiratory failure due to COVID-19. Study design: This is an open label, phase 2 clinical trial. Study population: Adult hospitalized SARS-CoV-2-infected patients (n=60). Intervention: The active-treatment arm will receive telmisartan 40 mg daily and the control arm will receive standard care. Treatment duration will be 14 days or up to hospital discharge <14 days or occurrence of the primary endpoint if <14 days. Main study endpoint: The primary study endpoint is the occurrence within 14 days of randomization of either: 1) Mechanical ventilation or 2) Death.

Start: August 2020

Doxapram Therapy in Preterm Infants (DOXA Trial)

Preterm infants often suffer from apnea of prematurity (AOP; a cessation of breathing) due to immaturity of the respiratory system. AOP can lead to oxygen shortage and a low heart rate which might harm the development of the newborn, especially the central nervous system. In order to prevent oxygen shortage, infants are treated with non-invasive respiratory support and caffeine. Despite these treatments, many preterm newborns still suffer from AOP and need invasive mechanical ventilation. Although this will result in complete resolution of AOP, invasive mechanical ventilation has the disadvantage of being a major risk of chronic lung disease and impaired neurodevelopmental outcome. Restrictive invasive ventilation is therefore advocated nowadays in preterm infants. Doxapram is a respiratory stimulant that has been administered off-label to treat AOP. Doxapram, as add-on treatment, seems to be effective in treating AOP and to prevent invasive mechanical ventilation. It is unclear if a preterm infant benefit from doxapram treatment on the longer term. This study compares doxapram to placebo and hypothesizes that doxapram will protect preterm infants from both invasive ventilation (and related lung disease) and AOP related oxygen shortage (and related impaired brain development).

Start: June 2020

Inspiratory Muscle Training Post-Liver Transplant

Individuals with chronic liver disease develop significant muscle wasting that remains post-liver transplant. The transplant surgery additionally challenges respiratory mechanics. Respiratory muscle strength has been measured to be impaired in individuals post liver transplant. This study proposes an 8 week intervention designed to increase respiratory muscle strength and pulmonary function that we hypothesize will correlate to improved functional performance and quality of life post-liver transplant. Pre-test post-test design, that will randomize subjects into an experimental group that will receive the inspiratory muscle strengthening exercise in addition to usual post-liver transplant care and a control group that will only receive the usual post-transplant care. Up to 50 subjects will be recruited from the Post-Liver Transplant Outpatient Clinic at the Miami Transplant Institute. The subjects will have repeated measurements of respiratory muscle strength, pulmonary function, functional mobility performance, and quality of life at baseline, 4 weeks, and 8 weeks.

Start: June 2017

Partial Neuromuscular Blockade for Lung Protective Mechanical Ventilation

Controlled mechanical ventilation may lead to the development of diaphragm muscle atrophy, which is associated with weakness and adverse clinical outcome. Therefore, it seems reasonable to switch to partially supported ventilator modes as soon as possible. However, in patients with high respiratory drive, the application of partially supported modes may result in high lung distending pressures and diaphragm injury. Recently, the investigators published a study that demonstrated that a low dose of neuromuscular blocking agents (NMBA) facilitates lung-protective ventilation and maintains diaphragm activity in intensive care unit (ICU) patients. That study was conducted in a small (N=10), selected group of patients and partial neuromuscular blockade was applied for only 2 hours (proof-of-concept study). Therefore, further research has to be done before this strategy can be applied in clinical practice. The primary goal is to investigate the feasibility and safety of prolonged (24 hours) partial neuromuscular blockade in patients with high respiratory drive in partially supported mode. The secondary goals are to evaluate the effect of this strategy diaphragm function, lung injury, hemodynamics and systemic inflammation.

Start: August 2018

KAP Asynchrony Survey

The investigators developed a web-based survey to assess knowledge, attitudes and practice of health care professionals about patient-ventilator asynchrony.

Start: March 2018

Ventil Device Usefulness in Mechanically Ventilated ICU Patients

During Covid-19 pandemic many patients require mechanical ventilation due to disastrous impact of SARS-CoV-2 on lungs. In several countries there is a shortage of ICU beds and ventilators. Critically ill patients are treated outside ICUs. Doctors are facing ethical dilemmas who they should treat with ventilation, who should receive ventilator and who should but will not. In ICUs or step down units or in nursery homes there are also patients beyond hope treated - very often they are dependent on mechanical ventilation. Some attempts to invent a device that could replace complex machines in patients with anticipated poor outcome have been made. Ventil was used in clinical scenarios for separate lung ventilation with good effect. As a flow divider it has a potential to ventilate 2 patients at the same time. In the study Ventil will ventilate one patient and instead of the second there will be an artificial lung. Tidal volumes, minute ventilation, PEEP set and final will be checked. Ppeak, Pmean, Pplat, Cdyn, airway resistance, EtCO2, Sat O2, HR, SAP, DAP will be monitored every 2 hrs, as well as blood-gas analysis (every 8 hrs).

Start: April 2020

Airway Clearance Using Non-Invasive Oscillating Device

This study aims to examine the tolerance, feasibility, and physiological effects in airway clearance by using a novel non-invasive oscillating transducer device (NIOD, FrequencerTM) in critically ill children. The project is two years long with two separate stages of investigation. This study specifically examines different frequencies of NIOD to find the best frequency on patients outcomes.

Start: June 2020

Evaluation Of The Efficacy Of Four Different Non-invasive Ventilation Modes Performed In The Delivery Room

Evaluation Of The Efficacy Of Four Different Non-invasive Ventilation Modes Performed In The Delivery Room In Late Preterm And Term Infants W?th Respiratory Distress

Start: February 2020