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Non-invasive positive pressure ventilation to treat respiratory failure resulting from exacerbations of chronic obstructive pulmonary disease: Cochrane systematic review and meta-analysis.

ABSTRACT: OBJECTIVES:To determine the effectiveness of non-invasive positive pressure ventilation (NPPV) in the management of respiratory failure secondary to acute exacerbation of chronic obstructive pulmonary disease. DESIGN:Systematic review of randomised controlled trials that compared NPPV and usual medical care with usual medical care alone in patients admitted to hospital with respiratory failure resulting from an exacerbation of chronic obstructive pulmonary disease and with PaCO2 >6 kPa. RESULTS:The eight studies included in the review showed that, compared with usual care alone, NPPV as an adjunct to usual care was associated with a lower mortality (relative risk 0.41 (95% confidence interval 0.26 to 0.64)), a lower need for intubation (relative risk 0.42 (0.31 to 0.59)), lower likelihood of treatment failure (relative risk 0.51 (0.38 to 0.67)), and greater improvements at 1 hour in pH (weighted mean difference 0.03 (0.02 to 0.04)), PaCO2 (weighted mean difference -0.40 kPa (-0.78 to -0.03)), and respiratory rate (weighted mean difference -3.08 breaths per minute (-4.26 to -1.89)). NPPV resulted in fewer complications associated with treatment (relative risk 0.32 (0.18 to 0.56)) and shorter duration of stay in hospital (weighted mean difference -3.24 days (-4.42 to -2.06)). CONCLUSIONS:NPPV should be the first line intervention in addition to usual medical care to manage respiratory failure secondary to an acute exacerbation of chronic obstructive pulmonary disease in all suitable patients. NPPV should be tried early in the course of respiratory failure and before severe acidosis, to reduce mortality, avoid endotracheal intubation, and decrease treatment failure.

SUBMITTER: Lightowler JV

PROVIDER: S-EPMC140272 | biostudies-literature | 2003 Jan

REPOSITORIES: biostudies-literature

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Non-invasive positive pressure ventilation to treat respiratory failure resulting from exacerbations of chronic obstructive pulmonary disease: Cochrane systematic review and meta-analysis.

Lightowler Josephine V JV Wedzicha Jadwiga A JA Elliott Mark W MW Ram Felix S F FS

BMJ (Clinical research ed.) 20030101 7382

<h4>Objectives</h4>To determine the effectiveness of non-invasive positive pressure ventilation (NPPV) in the management of respiratory failure secondary to acute exacerbation of chronic obstructive pulmonary disease.<h4>Design</h4>Systematic review of randomised controlled trials that compared NPPV and usual medical care with usual medical care alone in patients admitted to hospital with respiratory failure resulting from an exacerbation of chronic obstructive pulmonary disease and with PaCO2 > ...[more]

PMID: 12543832

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Project description:IMPORTANCE:Small clinical trials have shown that noninvasive ventilation (NIV) is efficacious in reducing the need for intubation and improving short-term survival among patients with severe exacerbations of chronic obstructive pulmonary disease (COPD). Little is known, however, about the effectiveness of NIV in routine clinical practice. OBJECTIVE:To compare the outcomes of patients with COPD treated with NIV to those treated with invasive mechanical ventilation (IMV). DESIGN, SETTING, AND PARTICIPANTS:This was a retrospective cohort study of 25?628 patients hospitalized for exacerbation of COPD who received mechanical ventilation on the first or second hospital day at 420 US hospitals participating in the Premier Inpatient Database. EXPOSURES:Initial ventilation strategy. MAIN OUTCOMES AND MEASURES:In-hospital mortality, hospital-acquired pneumonia, hospital length of stay and cost, and 30-day readmission. RESULTS:In the study population, a total of 17?978 (70%) were initially treated with NIV on hospital day 1 or 2. When compared with those initially treated with IMV, NIV-treated patients were older, had less comorbidity, and were less likely to have concomitant pneumonia present on admission. In a propensity-adjusted analysis, NIV was associated with lower risk of mortality than IMV (odds ratio [OR] 0.54; [95% CI, 0.48-0.61]). Treatment with NIV was associated with lower risk of hospital-acquired pneumonia (OR, 0.53 [95% CI, 0.44-0.64]), lower costs (ratio, 0.68 [95% CI, 0.67-0.69]), and a shorter length of stay (ratio, 0.81 [95% CI, 0.79-0.82]), but no difference in 30-day all-cause readmission (OR, 1.04 [95% CI, 0.94-1.15]) or COPD-specific readmission (OR, 1.05 [95% CI, 0.91-1.22]). Propensity matching attenuated these associations. The benefits of NIV were similar in a sample restricted to patients younger than 85 years and were attenuated among patients with higher levels of comorbidity and concomitant pneumonia. Using the hospital as an instrumental variable, the strength of association between NIV and mortality was modestly attenuated (OR, 0.66 [95% CI, 0.47-0.91]). In sensitivity analyses, the benefit of NIV was robust in the face of a strong hypothetical unmeasured confounder. CONCLUSIONS AND RELEVANCE:In a large retrospective cohort study, patients with COPD treated with NIV at the time of hospitalization had lower inpatient mortality, shorter length of stay, and lower costs compared with those treated with IMV.

Project description:Telenursing for patients with chronic respiratory failure receiving noninvasive positive pressure ventilation (NPPV) is an important aid in reducing exacerbations; however, there is insufficient evidence. This randomized controlled trial investigated the effectiveness of a telenursing intervention program in reducing exacerbations in patients with chronic respiratory failure receiving NPPV at home. We included patients receiving NPPV at home who could handle a tablet device. The intervention group (n = 15) underwent an information and communications technology-based telenursing intervention program in addition to usual care; the control group (n = 16) received the usual care only. The telenursing intervention program comprised telemonitoring and health counseling sessions via videophone. The intervention was evaluated once at enrollment and after 3 months. The primary endpoints were the number of unscheduled outpatient visits, hospitalizations, and hospital days. The secondary endpoints included the St. George's Respiratory Questionnaire (SGRQ) score, Euro QOL 5 Dimension score, Self-Care Agency Questionnaire (SCAQ) score, pulmonary function tests, and 6-min walking distance. We used the Mann-Whitney U test for our analysis. We found no significant differences between the intervention and control groups at enrollment. Then, the differences between the endpoints at baseline and 3 months after enrollment were calculated and used to compare both groups. At follow-up, the number of routine outpatient visits for acute exacerbations (p = .045), the number of hospitalizations (p = .037), the number of hospital days (p = .031), SGRQ (p = .039) score, and SCAQ (p = .034) score were significantly different. The increase in the number of unscheduled outpatient visits in the intervention group during follow-up was attributed to acute exacerbations and a significant decrease in the number of hospitalizations and hospital days. Hence, the telenursing intervention program may be effective in reducing exacerbations in patients with chronic respiratory failure receiving NPPV at home. Trial registration: UMIN Clinical Trials Registry (UMIN-CTR) UMIN000027657.

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Non-invasive positive pressure ventilation to treat respiratory failure resulting from exacerbations of chronic obstructive pulmonary disease: Cochrane systematic review and meta-analysis.

Publications

Non-invasive positive pressure ventilation to treat respiratory failure resulting from exacerbations of chronic obstructive pulmonary disease: Cochrane systematic review and meta-analysis.

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