scholarly journals Steroids in severe COVID-19 patients: A retrospective analysis on the first pandemics in Lombardy

2021 ◽  
Vol 17 (3) ◽  
Author(s):  
Beatrice Vergnano ◽  
Serena Calcinati ◽  
Davide Signori ◽  
Annalisa Benini ◽  
Maria Rosa Pozzi ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Airway Pressure ◽  
Positive Airway Pressure ◽  
Invasive Mechanical Ventilation ◽  
Control Group ◽  
Severe Respiratory Failure ◽  
Cpap Therapy ◽  
Steroid Group ◽  
And Control ◽  
Pandemic Wave

The pathogenesis of COVID-19 appears to be characterized by a dysregulated immune response. During the first pandemic wave in Lombardy, we started to administer glucocorticoids to some patients with severe respiratory failure requiring support with Continuous Positive Airway Pressure (CPAP) therapy. We retrospectively collected data to identify the effect of glucocorticoids in this COVID-19 particular population. With a multidisciplinary consensus, we administered to selected patients with severe COVID-19 disease (PaO2/FiO2 159±71 mmHg) 0,91 mg/kg/die of methylprednisolone equivalent dose after a median of 8 days of hospitalization. In our study we compared 57 patients from the steroid group with 123 from the control group: the event of invasive mechanical ventilation or death was reduced by 43% between steroid group and control group (19.3 % vs. 34.1 % respectively, p=0.001) and mortality was reduced by about 31% between steroid and usual care alone (15.8 % vs. 22.8 % respectively, p=0.011). Corticosteroids in selected COVID-19 patients may have a relevant impact on outcome, better profiling of the heterogeneity of this disease may be essential to guarantee the best treatment choices.

scholarly journals Positive Airway Pressure Therapy Adherence with Mask Resupply: A Propensity-Matched Analysis

2021 ◽  
Vol 10 (4) ◽  
pp. 720
Author(s):  
Adam Benjafield ◽  
Liesl Oldstone ◽  
Leslee Willes ◽  
Colleen Kelly ◽  
Carlos Nunez ◽  
...  
Keyword(s):  
Airway Pressure ◽  
Positive Airway Pressure ◽  
Group Versus ◽  
Control Group ◽  
Billing Data ◽  
Pressure Therapy ◽  
Therapy Termination ◽  
Few Data ◽  
And Control ◽  
The Impact

There are currently few data on the impact of mask resupply on longer-term adherence to positive airway pressure (PAP) therapy. This retrospective analysis investigated the effects of mask/mask cushion resupply on the adherence to PAP versus no resupply. Deidentified patient billing data for PAP supply items were merged with telemonitoring data from Cloud-connected AirSense 10/AirCurve 10 devices via AirViewTM (ResMed). Eligible patients started PAP between 1 July 2014 and 17 June 2016, had ≥360 days of PAP device data, and achieved initial U.S. Medicare adherence criteria. Patients who received a resupply of mask systems/cushions (resupply group) were propensity-score-matched with those not receiving any mask/cushion resupply (control group). A total of 100,370 patients were included. From days 91 to 360, the mean device usage was 5.6 and 4.5 h/night in the resupply and control groups, respectively (p < 0.0001). The proportion of patients with a mean device usage ≥4 h/night was significantly higher in the resupply group versus the control group (77% vs. 59%; p < 0.0001). The therapy termination rate was significantly lower in the resupply group versus the control group (14.7% vs. 31.9%; p < 0.0001); there was a trend toward lower therapy termination rates as the number of resupplies increased. The replacement of mask interface components was associated with better longer-term adherence to PAP therapy versus no resupply.

scholarly journals The role of Continuous Positive Airway Pressure (CPAP) in Delaying or Avoiding Mechanical Ventilation in COVID-19 Respiratory Failure: A Retrospective Cohort Study

2021 ◽  
Author(s):  
Allan Cameron ◽  
Sharif Fattah ◽  
Laura Knox ◽  
Pauline Grose
Keyword(s):  
Mechanical Ventilation ◽  
Cohort Study ◽  
Continuous Positive Airway Pressure ◽  
Airway Pressure ◽  
Positive Airway Pressure ◽  
Invasive Mechanical Ventilation ◽  
Respiratory Support ◽  
Royal Infirmary ◽  
High Dependency ◽  
Number Of Patients

Abstract Background - During the winter of 2020-2021, the second wave of the COVID19 pandemic in the United Kingdom caused increased demand for intensive care unit (ICU) beds, and in particular, for invasive mechanical ventilation (IMV). To alleviate some of this pressure, some centres offered non-invasive continuous positive airway pressure (CPAP), delivered on specialised COVID high dependency units (cHDUs). However, this practice was based largely on anecdotal reports, and it is not clear from the literature how effective CPAP is at delaying or preventing IMV. Methods - This was a retrospective observational cohort study of consecutive patients admitted to a specialised cHDU at Glasgow Royal Infirmary between November 2020 and February 2021. Each patient had a continuous record of the level of respiratory support required, and was followed up to hospital discharge or death. We examined patient outcomes according to age, sex and maximum level of respiratory support, using logistic regression and time-to-event analysis. The number of patients who could not be oxygenated by standard oxygen facemask but could be oxygenated by CPAP was counted and compared to the number of patients admitted to ICU for IMV over the same period.Results - There were 152 admissions to cHDU over the study period. Of these, 125 received CPAP treatment. Of the patients who received support in cHDU, the overall mortality rate was 37.9% (95% CI 30.3% - 46.1%)). Odds of mortality were closely correlated with increasing age and oxygen requirement. Of the 152 patients, 44 patients (28.8%, 95% CI 22.0 – 36.9%) went on to require IMV in ICU. This represents 77.2% of the 57 COVID-19 admissions to ICU during the same period. However, there were also 41 patients who received levels of respiratory support on cHDU which would normally necessitate ICU admission but who never went to ICU, potentially reducing ICU admissions by 41.8% (95% CI 32.1 – 52.2%).Conclusion - Providing respiratory support in cHDU reduced the number of potential ICU admissions by 41.8%, as well as delaying IMV for over 75% of ICU admissions. This represents a significant sparing of ICU capacity at a time when IMV beds were in high demand.

Respiratory Failure and Mechanical Ventilation

2017 ◽  
Author(s):  
Jan Hau Lee ◽  
Ira M. Cheifetz
Keyword(s):  
Mechanical Ventilation ◽  
Respiratory Failure ◽  
Airway Pressure ◽  
Positive Airway Pressure ◽  
Invasive Mechanical Ventilation ◽  
Plateau Pressure ◽  
Consensus Definition ◽  
Essential Information ◽  
Bilevel Positive Airway Pressure ◽  
Definition Of

This chapter on respiratory failure and mechanical ventilation provides essential information about how to support children with severe respiratory disorders. The authors discuss multiple modes of respiratory support, including high-flow nasal cannula oxygen, noninvasive ventilation with continuous positive airway pressure and bilevel positive airway pressure, as well as conventional, high-frequency, and alternative modes of invasive ventilation. The section on invasive mechanical ventilation includes key information regarding gas exchange goals, modes of ventilation, patient–ventilator interactions, ventilator parameters (including tidal volume, end-expiratory pressure, and peak plateau pressure), extubation readiness testing, and troubleshooting. The authors also provide the new consensus definition of pediatric acute respiratory distress syndrome. Also included are multiple figures and indispensable information on adjunctive therapies (inhaled nitric oxide, surfactant, prone positioning, and corticosteroids) and respiratory monitoring (including capnography and airway graphics analysis).

Comparison of Early Nasal Intermittent Positive Pressure Ventilation and Nasal Continuous Positive Airway Pressure in Preterm Infants with Respiratory Distress Syndrome

2018 ◽  
Vol 65 (4) ◽  
pp. 352-360 ◽  
Author(s):  
Mesut Dursun ◽  
Sinan Uslu ◽  
Ali Bulbul ◽  
Muhittin Celik ◽  
Umut Zubarioglu ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Continuous Positive Airway Pressure ◽  
Respiratory Distress Syndrome ◽  
Airway Pressure ◽  
Positive Pressure Ventilation ◽  
Distress Syndrome ◽  
Positive Airway Pressure ◽  
Invasive Mechanical Ventilation ◽  
Intermittent Positive Pressure Ventilation ◽  
Positive Pressure

Abstract Aims To compare the effect of early nasal intermittent positive pressure ventilation (nIPPV) and nasal continuous positive airway pressure (nCPAP) in terms of the need for endotracheal ventilation in the treatment of respiratory distress syndrome (RDS) in preterm infants born between 24 and 32 gestational weeks. Methods This is a randomized, controlled, prospective, single-centered study. Forty-two infants were randomized to nIPPV and 42 comparable infants to nCPAP (birth weight 1356 ± 295 and 1359 ± 246 g and gestational age 29.2 ± 1.7 and 29.4 ± 1.5 weeks, respectively). Results The need for endotracheal intubation and invasive mechanical ventilation was significantly lower in the nIPPV group than the nCPAP group (11.9% and 40.5%, respectively, p < 0.05). There were no differences in the duration of total nasal respiratory support, duration of invasive mechanical ventilation, bronchopulmonary dysplasia or other early morbidities. Conclusion nIPPV compared with nCPAP reduced the need for endotracheal intubation and invasive mechanical ventilation in premature infants with RDS.

Relationship between obstructive sleep apnea and endogenous carbon monoxide

2017 ◽  
Vol 122 (1) ◽  
pp. 104-111 ◽  
Author(s):  
Masanori Azuma ◽  
Kimihiko Murase ◽  
Ryo Tachikawa ◽  
Satoshi Hamada ◽  
Takeshi Matsumoto ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Carbon Monoxide ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Airway Pressure ◽  
Positive Airway Pressure ◽  
Surrogate Marker ◽  
Control Group ◽  
Cpap Therapy ◽  
Obstructive Sleep

Endogenous carbon monoxide (CO) levels are recognized as a surrogate marker for activity of heme oxygenase-1, which is induced by various factors, including hypoxia and oxidative stress. Few reports have evaluated endogenous CO in patients with obstructive sleep apnea (OSA). Whether OSA more greatly affects exhaled or blood CO is not known. Sixty-nine patients with suspected OSA were prospectively included in this study. Exhaled and blood CO were evaluated at night and morning. Blood and exhaled CO levels were well correlated both at night and morning ( r = 0.52, P < 0.0001 and r = 0.61, P < 0.0001, respectively). Although exhaled CO levels both at night and morning significantly correlated with total sleep time with arterial oxygen saturation < 90% (ρ = 0.41, P = 0.0005 and ρ = 0.27, P = 0.024, respectively), blood CO levels did not correlate with any sleep parameter. Seventeen patients with an apnea and hypopnea index (AHI) < 15 (control group) were compared with 52 patients with AHI ≥ 15 (OSA group). Exhaled CO levels at night in the OSA group were significantly higher than in the control group (3.64 ± 1.2 vs. 2.99 ± 0.70 ppm, P < 0.05). Exhaled CO levels at night decreased after 3 mo of continuous positive airway pressure (CPAP) therapy in OSA patients ( n = 36; P = 0.016) to become nearly the same level as in the control group ( P = 0.21). Blood CO levels did not significantly change after CPAP therapy. Exhaled CO was positively related to hypoxia during sleep in OSA patients, but blood CO was not. Exhaled CO might better correlate with oxidative stress associated with OSA than blood CO. NEW & NOTEWORTHY Endogenous carbon monoxide (CO) levels are recognized to be a surrogate marker of oxidative stress. No study has evaluated both exhaled and blood CO at the same time in obstructive sleep apnea (OSA) patients. Here we provide evidence that exhaled CO levels positively correlated with hypoxia during sleep in OSA patients, but blood CO levels did not, and that continuous positive airway pressure therapy significantly decreased exhaled CO levels in the OSA group, but did not significantly affect blood CO.

scholarly journals Penggunaan Ventilasi Mekanik non Invansif Untuk Mengatasi Kegagalan Pernafasan pada Pasien dengan Edema Pulmo Akut Kardiogenik

2020 ◽  
Vol 1 (2) ◽  
pp. 91-100
Author(s):  
Eva Marti
Keyword(s):  
Mechanical Ventilation ◽  
Pulmonary Edema ◽  
Airway Pressure ◽  
Oxygen Therapy ◽  
Positive Airway Pressure ◽  
Invasive Mechanical Ventilation ◽  
Noninvasive Mechanical Ventilation ◽  
Non Invasive ◽  
Bilevel Positive Airway Pressure ◽  
First Choice

Background: Cardiogenic Pulmo edema can cause a heterogeneous syndrome with a mortality rate of up to 9.5% (Aliberti et all., 2018).Objective: The purpose of this paper was to explain how effective the use of non-invasive mechanical ventilation in patients with acute pulmonary edema with respiratory failure. Methods: The literature review was compiled by synthesizing and comparing various relevant scientific articles from the literature search results using the online database of Proquest and Clinicalkey Elsevier that have significance related to the management of acute cardiogenic pulmo edema. Result: Compared with conservative therapy,  noninvasive mechanical ventilation has been shown more effective in improving oxygenation in patients with acute cardiogenic pulmo edema Non-invasive ventilation can reduce dyspnea, acidosis and hypercapnea faster than standard oxygen therapy. Studies show that compared to endotracheal intubation, non-invasive mechanical ventilation is associated with a lower risk of nosocomial infection, lower antibiotic use, shorter length of stay in intensive care units and lower mortality. Study found that there were no differences betwen the two setting of non-invasive mechanical ventilation used, Bilevel positive Airway Pressure (BiPAP) and Continues positive Airway Pressure (CPAP) in  patients outcomes. However, there are absolute and relative contraindications that must be considered, including the effectiveness of the therapy being insignificant when given too late Conclusion: Noninvasive mechanical ventilation can be considered as the first choice in the management of acute cardiogenic pulmonary edema because of its high clinical effectiveness representing a rescue action for patients not improving with conventional oxygen therapy.

scholarly journals Perioperative Auto-titrated Continuous Positive Airway Pressure Treatment in Surgical Patients with Obstructive Sleep Apnea

2013 ◽  
Vol 119 (4) ◽  
pp. 837-847 ◽  
Author(s):  
Pu Liao ◽  
Quanwei Luo ◽  
Hisham Elsaid ◽  
Weimin Kang ◽  
Colin M. Shapiro ◽  
...  
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Continuous Positive Airway Pressure ◽  
Airway Pressure ◽  
Positive Airway Pressure ◽  
Compliance Rate ◽  
Control Group ◽  
Apnea Hypopnea Index ◽  
Obstructive Sleep ◽  
And Control

Abstract Background: Obstructive sleep apnea (OSA) may worsen postoperatively. The objective of this randomized open-label trial is to determine whether perioperative auto-titrated continuous positive airway pressure (APAP) treatment decreases postoperative apnea hypopnea index (AHI) and improves oxygenation in patients with moderate and severe OSA. Methods: The consented patients with AHI of more than 15 events/h on preoperative polysomnography were randomized into the APAP or control group (receiving routine care). The APAP patients received APAP for 2 or 3 preoperative, and 5 postoperative nights. All patients were monitored with oximetry for 7 to 8 nights (N) and underwent polysomnography on postoperative N3. The primary outcome was AHI on the postoperative N3. Results: One hundred seventy-seven OSA patients undergoing orthopedic and other surgeries were enrolled (APAP: 87 and control: 90). There was no difference between the two groups in baseline data. One hundred six patients (APAP: 40 and control: 66) did polysomnography on postoperative N3, and 100 patients (APAP: 39 and control: 61) completed the study. The compliance rate of APAP was 45%. The APAP usage was 2.4–4.6 h/night. In the APAP group, AHI decreased from preoperative baseline: 30.1 (22.1, 42.5) events/h (median [25th, 75th percentile]) to 3.0 (1.0, 12.5) events/h on postoperative N3 (P &lt; 0.001), whereas, in the control group, AHI increased from 30.4 (23.2, 41.9) events/h to 31.9 (13.5, 50.2) events/h, P = 0.302. No significant change occurred in the central apnea index. Conclusions: The trial showed the feasibility of perioperative APAP for OSA patients. Perioperative APAP treatment significantly reduced postoperative AHI and improved oxygen saturation in the patients with moderate and severe OSA.

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