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Withdrawal of Non-invasive Ventilation in Chronic Obstructive Pulmonary Disease (COPD) Patients With Acute Hypercapnic Respiratory Failure

Chronic Obstructive Pulmonary Disease Clinical Trial

Official title:
A Pilot Randomised Controlled Trial of Withdrawal of Non-invasive Ventilation in COPD Patients With Acute Hypercapnic Respiratory Failure

Clinical Trial Summary

The investigators design a pilot randomised, single-centred, controlled trial to compare different withdrawal methods of Non-invasive ventilation. Our study aims at comparing stepwise withdrawal of Non-invasive ventilation versus immediate withdrawal of Non-invasive ventilation. The primary endpoint is to compare the rate of success between two withdrawal methods. The investigators define success as no recurrence of acute hypercapnic respiratory failure or restitution of Non-invasive ventilation within 48 hours after NIV is stopped. The secondary endpoints include time to recurrence of acute hypercapnic respiratory failure measured from the time of randomisation, the total days of Non-invasive ventilation use and the days of hospitalisation. Results from this trial will inform design of future randomised trial in this area.

Clinical Trial Description

All patients would receive standard medical treatment with inhaled bronchodilator, systemic steroid, antibiotics according to our local bacteriology. Acute NIV was initiated by trained respiratory nurses according to standardised protocols. The nurses would be at the bedside during the initial acclimatization. BIPAP vision was used to provide bi-level pressure support ventilation. Interfacing with different types of nasal or full-mask would be individualised. NIV was used for as many as possible in the first day, at least 20 hrs. Throughout the NIV treatment, the following parameters will be monitored when NIV is started: arterial blood gases, respiratory rate, heart rate and blood pressure, mental state, pulse oximetry. If a patient failed to respond to NIV, he or she would be intubated if appropriate. Criteria for failure include lack of clinical improvement with increasing dyspnea and deterioration of blood gases, hemodynamic instability, uncontrolled ventricular arrythmia, development of hypercapnic coma and cardiopulmonary arrest.

A patient would be considered suitable to withdraw from the ventilator if he or she fulfil the criteria at rest. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01523470
Study type Interventional
Source United Christian Hospital
Contact
Status Completed
Phase Phase 3
Start date November 2010
Completion date October 2011
View Details
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