scholarly journals Nocturnal non-invasive ventilation in COPD patients with prolonged hypercapnia after ventilatory support for acute respiratory failure: a randomised, controlled, parallel-group study

Thorax ◽  
2014 ◽  
Vol 69 (9) ◽  
pp. 826-834 ◽  
Author(s):  
F M Struik ◽  
R T M Sprooten ◽  
H A M Kerstjens ◽  
G Bladder ◽  
M Zijnen ◽  
...  
2021 ◽  
Vol 4 (1) ◽  
pp. 21-26
Author(s):  
Anusmriti Pal ◽  
Manoj Kumar Yadav ◽  
Chiranjeevi Pant

Introduction: Non-invasive ventilation (NIV) is a method of ventilator support or delivery of positive pressure into the lungs usually through a face mask, mostly initiated before severe acidosis occurs. NIV failure requiring invasive mechanical ventilation in decompensated chronic obstructive pulmonary disease (COPD) patients is low, but, in critical patients, it is as high as 60%. Acute respiratory failure (ARF) is the common reason for admission to the intensive care unit. This study assesses the outcome of NIV among patients with acute respiratory failure, the duration of use, stay in ICU, and failure rate of NIV. Such type of study result is scarce in our country. Methods:  Arterial blood gases were assessed prior, after, and at discontinuation of NIV. NIV was delivered by ventilator via face mask. All patients above age 15 years who presented to the hospital, diagnosed to have ARF by ABG were included and admitted to Medical Intensive Care Unit (MICU). . Appropriate statistical tests (Chi-square) were performed and the statistical significance of the results was assessed. Results: 35 patients with the median age of 73 years (range: 39- 89 years), of 60.0 % females among which 74.3 % were current smokers. Arterial blood pH prior to admission ranged from 7.11-7.39 and 7.06-7.41 among NIV success and failure, respectively. Similarly, PCo2 ranged from 54.0-127.5 and 29.5-105.9 among them, respectively. Two hours after ventilation pH ranged from 7.12-7.43 and 7.05-7.30 respectively in the success and failure group. The most common disease condition requiring NIV was 77.1% COPD.  Out of NIV failure group (n=19) ,57.8 % were intubated and 42.1% patients left the intervention.  Conclusions: Usage of NIV among ARF patients was associated with lower intubation and ICU mortality rate. COPD patients showed the most benefit with NIV, whereas patients suffering from interstitial lung disease, lung cancer had less benefit.


BMJ Open ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. e045659
Author(s):  
René Robert ◽  
Denis Frasca ◽  
Julie Badin ◽  
C Girault ◽  
Christophe Guitton ◽  
...  

IntroductionA palliative approach to intensive care unit (ICU) patients with acute respiratory failure and a do-not-intubate order corresponds to a poorly evaluated target for non-invasive oxygenation treatments. Survival alone should not be the only target; it also matters to avoid discomfort and to restore the patient’s quality of life. We aim to conduct a prospective multicentre observational study to analyse clinical practices and their impact on outcomes of palliative high-flow nasal oxygen therapy (HFOT) and non-invasive ventilation (NIV) in ICU patients with do-not-intubate orders.Methods and analysisThis is an investigator-initiated, multicentre prospective observational cohort study comparing the three following strategies of oxygenation: HFOT alone, NIV alternating with HFOT and NIV alternating with standard oxygen in patients admitted in the ICU for acute respiratory failure with a do-not-intubate order. The primary outcome is the hospital survival within 14 days after ICU admission in patients weaned from NIV and HFOT. The sample size was estimated at a minimum of 330 patients divided into three groups according to the oxygenation strategy applied. The analysis takes into account confounding factors by modelling a propensity score.Ethics and disseminationThe study has been approved by the ethics committee and patients will be included after informed consent. The results will be submitted for publication in peer-reviewed journals.Trial registration numberNCT03673631


2021 ◽  
Vol 82 (6) ◽  
pp. 1-9
Author(s):  
M Gabrielli ◽  
F Valletta ◽  
F Franceschi ◽  

Ventilatory support is vital for the management of severe forms of COVID-19. Non-invasive ventilation is often used in patients who do not meet criteria for intubation or when invasive ventilation is not available, especially in a pandemic when resources are limited. Despite non-invasive ventilation providing effective respiratory support for some forms of acute respiratory failure, data about its effectiveness in patients with viral-related pneumonia are inconclusive. Acute respiratory distress syndrome caused by severe acute respiratory syndrome-coronavirus 2 infection causes life-threatening respiratory failure, weakening the lung parenchyma and increasing the risk of barotrauma. Pulmonary barotrauma results from positive pressure ventilation leading to elevated transalveolar pressure, and in turn to alveolar rupture and leakage of air into the extra-alveolar tissue. This article reviews the literature regarding the use of non-invasive ventilation in patients with acute respiratory failure associated with COVID-19 and other epidemic or pandemic viral infections and the related risk of barotrauma.


2018 ◽  
Vol 12 (1) ◽  
pp. 5
Author(s):  
Maurizio Alessandro Cavalleri ◽  
Elena Barbagelata ◽  
Marco Scudeletti ◽  
Antonello Nicolini

Non-invasive ventilation (NIV) has been used successfully for the management of acute respiratory failure (ARF) more often in the last two decades compared to prior decades; nevertheless, NIV can have failure rates ranging from 5% to 50%. However, there are particular groups of patients that are more likely to benefit from NIV. One of these groups is patients with hypoventilation syndrome (OHS). The aim of this review is to seek evaluation of the effectiveness of NIV in acute setting. Only a few studies have investigated NIV success or failure in OHS patients. More than 30% of them were diagnosed when hospitalized for ARF. NIV rarely failed in reversing ARF. OHS patients who exhibited early NIV failure had a high severity score and a low HCO3 level at admission; more than half of hypercapnic patients with decompensated OHS exhibited a delayed but successful response to NIV. Patients with decompensation of OHS have a better prognosis and response to NIV than other hypercapnic patients. They require more aggressive NIV settings, a longer time to reduce PaCO2 levels, and more frequently a delayed but successful response to NIV.


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