View clinical trials related to Respiratory Depression.
Filter by:High flow nasal oxygen therapy (HFNO) is an established modality in the supportive treatment of patients suffering from acute hypoxemic respiratory failure. The high humidified gas flow supports patient's work of breathing, reduces dead space ventilation, and improves functional residual capacity while using an unobtrusive patient's face interface [Mauri et al, 2017; Möller et al, 2017]. As hyperoxia is considered not desirable [Barbateskovic et al, 2019] during any oxygen therapy, the inspired O2 concentration is usually adapted to a pre-set SpO2 target-range of 92-96% in patients without hypercapnia risk, and of 88-92% if a risk of hypercapnia is present [O'Driscoll et al, 2017; Beasley et al, 2015]. In most institutions, the standard of care is to manually adapt the FiO2, although patients frequently have a SpO2 value outside the target range. A new closed loop oxygen controller designed for HFNO was recently developed (Hamilton Medical, Bonaduz, Switzerland). The clinician sets SpO2 targets, and the software option adjusts FiO2 to keep SpO2 within the target ranges. The software option offers some alarms on low and high SpO2 and high FiO2. Given the capability, on the one hand, to quickly increase FiO2 in patients developing sudden and profound hypoxia, and, on the other hand, of automatically preventing hyperoxia in patients improving their oxygenation, such a system could be particularly useful in patients treated with HFNO. A short-term (4 hours vs 4 hours) crossover study indicated that this technique improves the time spent within SpO2 pre-defined target for ICU patients receiving high-flow nasal oxygen therapy [Roca et al, 2022]. Due to its simplicity, HFNO is increasingly used outside the ICU during transport and in the Emergency Room (ER). This environment poses specific challenges, as patients may deteriorate very quickly and depending on patient's flow, healthcare providers can easily be overwhelmed. We thus propose to evaluate closed loop controlled HFNO in ER patients. The hypothesis of the study is that closed loop oxygen control increases the time spent within clinically targeted SpO2 ranges and decreases the time spent outside clinical target SpO2 ranges as compared to manual oxygen control in ER patients treated with HFNO.
This study is a Phase II, randomized, placebo-controlled, double-blind trial in 200 subjects having general anesthesia for major elective surgery with postoperative pain management to evaluate the efficacy, safety and tolerability of ENA-001 as a therapy to prevent post operative respiratory depression.
This is a confirmatory study without any intervention. It is an uncontrolled, non-randomized and open-label study with measurements made with comparators, and it has a preset hypothesis for the primary endpoint. There are no similar devices to VitalThings Guardian M10 / M10 mobile on the market, consequently one or more different types of devices must be used as comparators.
This study targets adult patients treated with high flow nasal cannula (HFNC) at emergency department (ED) of Severance hospital, Yonsei university. Patients with acute hypoxic respiratory failure presenting to the ED receive conventional oxygen therapy as initial treatment unless immediate endotracheal intubation is required. Partial rebreathing oxygen masks are mainly applied at first. If the patient's condition does not improve despite such treatment, the patient receives HFNC or endotracheal intubation. However, possible treatment range have not been studied, especially in ED. Decisions are made based on the personal experience of the medical staff in charge. Applying HFNC to patients who eventually fail can lead to delayed intubation and increased mortality. Failure prediction models such as ROX index and HACOR score have been developed due to such reasons. However, such models are mostly based on intensive care unit studies and after application of HFNC. Therefore, failure prediction model at the time before application of HFNC and efficacy of existing models in ED are necessary. This study is a prospective observational study and follows the standard treatment guidelines applied to the patient and the judgment of the attending physician during the patient's treatment process. Immediately before applying HFNC, the patient's respiratory rate, pulse rate, blood pressure, SpO₂, PaO₂, PaCO₂, GCS score are determined, and FiO₂ is measured above upper lips using oxygen analyzer(MaxO2+AE, Maxtec, USA). From these data, ROX index (SF ratio/respiratory rate), ROX-HR (ROX index/pulse rate), POX index (PF ratio/respiratory rate), POX-HR (POX index/pulse rate), and HACOR score (Heart Rate, Acidosis, Consciousness, Oxygenation, Respiratory rate) are calculated. The settings (flow rate, FiO₂, temperature) at the time of HFNC application are also measured. The same indices and HFNC settings are checked 30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 12 hours after applying HFNC. Modified Borg score and comfort scale using 5-point Likert scale are additionally determined at 30 minutes for patient's comfort. Primary outcome is HFNC failure at 28 days, defined by endotracheal intubation. Other outcomes include intubation in ED and mortality at 28 and 90 days collected through phone interview. The receiver operating curve for ROX index, HACOR score, ROX-HR, and POX-HR at baseline, 30 minutes, 1 hour, 2 hours, 4 hours, 6 hours, and 12 hours are drawn for the outcomes. The area under the curve of the above indices are compared and cutoff values are chosen with maximum value of index J by the Youden's Index. A binary variable is created based on the cutoff values and multivariable logistic regression analyses are performed. Cutoff values for maximum specificity are also invested suggesting the lower limit of the indicator to which HFNC can be applied.
Pain after acute burn injury is complex with much still not understood. The primary mechanism is believed to be nociceptive, but is interwoven with aspects of somatogenic, neuropathic, and psychogenic pathways. As such, opioid receptor agonists are an essential component for pain management after burn injury. The majority of wound care and dressing changes are completed in non-intubated patients and rates of respiratory depression concerning. Oliceridine is a biased, selective MOR agonist approved for treatment of acute pain. To date there is no literature of use in patients with burn injuries. While it should be effective, efficacy and the potential for reduced adverse events need to be quantified. Current practice and guidelines, plead for better analgesia for patients with burn injuries.
This study will establish the relationship between magnitude of opioid exposure and a pupillary measure referred to as PUAL (pupillary unrest in ambient light), in subjects aged 40-60. Previous investigation demonstrated that loss of PUAL was a sensitive, discriminative indicator of opioid toxicity and respiratory depression among subjects aged 20-40 years old. Population data indicate that pupil size and PUAL decline slightly with age. The investigators will explore whether PUAL proves to be a sensitive indicator of opioid exposure and respiratory depression in this older group.
Rationale: Opioid misuse and abuse are common problems in the Western world. The rate of unintentional drug overdose is rapidly increasing, not only in the Unites States but also in the Netherlands. Additionally, it is well known that opioids are often used (and abused) in combination with other legal or illicit substances, for example cannabis, including medicinal (i.e. doctor prescribed) cannabis. A major opioid-induced adverse effect is respiratory depression and there are no data that show how oxycodone interacts with cannabis on the ventilatory control system. An appreciable effect is possible given the sedative effects of cannabis. Moreover, investigators previously showed that combining even a low dose of oxycodone (20 mg) with ethanol increased the likelihood of an apneic event (van der Schrier et al. Anesthesiology 2017; 102: 115-122). Because of this side effect and also due to the rising number of addicted chronic opioid users, there is an increasing imminent societal, political and medical interest in advancing research on opioids, opioid-drug interaction and alternatives for the treatment of various chronic illnesses and chronic pain. Hypothesis: The investigators hypothesize that cannabis will amplify the ventilatory depressant effect of oxycodone (primary end-point). Objective: The objective of the study is to quantify the interactive effect of Δ9-tetrahydrocannabinol (THC) and oxycodone on ventilatory control. Study design: Double blind, randomized cross-over, placebo-controlled design. Study population: Healthy human volunteers between the age of 18 and 45 years old. Intervention: Visit A: placebo capsule at t = 0 min + Bedrocan (22.4 mg THC) at t = 90 and 270 min; Visit B: oxycodone 20 mg at t = 0 min + Bedrocan (22.4 mg THC) at t = 90 and 270 min. Main study parameters/endpoints: Primary endpoint: The effect of inhaled THC on ventilation at an end-tidal PCO2 = 55 mmHg without and with concomitant intake of 20 mg oxycodone immediate release (IR) capsule in healthy volunteers 120 min after oxycodone intake. Secondary endpoints: (1) Outcome of Bowdle and Bond & Lader questionnaires; (2) Level of sedation; (3) Pain Pressure Threshold; (4) slope of the hypercapnic ventilatory response; (5) plasma concentrations of THC, 11-OH-THC and oxycodone; a secondary analysis will be performed on the pharmacokinetic and pharmacodynamic data (PKPD modeling).
This study is designed to look at how often a decrease in the rate of breathing occurs after being given a routinely used intravenous (IV) pain medication. This pain medication (Fentanyl) is given in the research procedure room by the anesthesiologist. In addition to relieving pain, in some patients it has been observed that this medication may decrease the rate of breathing. Different pieces of one's genetic makeup (also known as genes) can affect how well this medication relieves pain. The investigators do not know if these same genes influence how large the effect of the medication has on breathing rate. The purpose of this study is to determine if the presence or alteration of these same genes may be associated with a decrease in rate of breathing.
Volunteers will receive a weight-based opioid (remifentanil) infusion for 10 minutes. In the first run, serial pupillary measurements (pupillary unrest, pupil diameter) will be taken at baseline, and at 2.5-minute intervals during the infusion and a 25-minute recovery period afterwards. After a washout period, the experiment will be repeated in each subject (second run). The two runs differ only by presence versus absence of verbal interaction.
Proposed is a demonstration project to characterize the immediate, short-term and long-term pain and other post-operative outcomes of 60, self-selected breast (n=20), caesarian-section (n=20) and abdominal (n=20) surgical patients who receive opioid-sparing, multimodal anesthesia and pain management care as guided by the ComfortSafe Pyramid.