Other Clinical Trial - Noninvasive Positive Pressure Ventilation for Early

Status Withdrawn

Clinical Trial Summary

Acute hypoxaemic respiratory failure (AHRF) refers to pathological states in which arterial blood oxygenation is severely impaired，and which need invasive positive pressure ventilation (IPPV) as respiratory support technique in most cases.However，IPPV carries well-known risks of complications such as ventilator induced lung injury (VILI) or ventilator associated pneumonia (VAP)，and the incidence of which is increased as the prolongation of IPPV so as to lead to higher mortality rate. Consequently，early extubation is extraordinarily necessary.

More recently, NPPV has shown to shorten the duration of IPPV，reduce the mortality and morbidity rates in patients with chronic obstructive pulmonary disease (COPD). Despite this evidence, the efficacy of NPPV in patients with AHRF has not been evidenced. However，NPPV has been shown to provide adequate ventilation and oxygenation，and reduce inspiratory muscle effort，neuromuscular drive，and dyspnea scores. Moreover，to some patints，NPPV is similar with IPPV in providing oxygenation.

The duration of weaning is from the first day a patient met standard criteria for weaning readiness to the time of successful extubation (lasting at least 48 h)，which represents 40-50% of the total duration of IPPV.As a result，duration of IPPV would be shortened if that of weaning was shortened.

The investigators hypothesized that in mechanical ventilated patients with AHRF who met standard criteria for weaning readiness and suffer failure of spontaneous breathing trial, use of NPPV for early extubation, providing adequate ventilation and oxygenation, would shorten the duration of IPPV as the primary end-point variable, thereby reduce the incidence of complication and mortality rates. Accordingly, the investigators conducted a prospective，randomized clinical trial to assess the efficacy of this strategy compared with the conventional-weaning approach.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Acute Hypoxemic Respiratory Failure
Respiratory Insufficiency

Clinical Trial Details

NCT number	NCT01151501
Study type	Interventional
Source	Beijing Chao Yang Hospital
Contact
Status	Withdrawn
Phase	N/A
Start date	July 2010
Completion date	June 2012

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Noninvasive Positive Pressure Ventilation for Early Extubation of Acute Hypoxemic Respiratory Failure — NPPV

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms