Status:

RECRUITING

Asymmetrical Versus Conventional High-flow Nasal Cannula in Acute Respiratory Failure

Lead Sponsor:

Siriraj Hospital

Conditions:

Acute Hypoxemic Respiratory Failure

Acute Hypercapnic Respiratory Failure

Eligibility:

All Genders

18-90 years

Phase:

NA

Brief Summary

The goal of this randomized crossover physiological study is to evaluate the physiologic effects of asymmetrical nasal cannula and conventional nasal cannula in patients with acute respiratory failure...

Detailed Description

High-flow nasal cannula (HFNC) is increasingly used in patients with acute respiratory failure. The physiologic benefits of HFNC can be explained via several mechanisms. These mechanisms lead to impro...

Eligibility Criteria

Inclusion

  • Patients with acute hypoxemia respiratory failure
  • Age \> 18 years old
  • Acute respiratory failure within 7 days of hospital admission?
  • Hypoxemia defined by arterial partial pressure of oxygen (PaO2)/FiO2 \< 300 mmHg or SpO2/FiO2 \< 315
  • Already supported with HFNC device

Exclusion

  • Respiratory acidosis: pH \< 7.30 and PaCO2 \> 45 mmHg
  • Hemodynamic instability requiring vasopressor initiation
  • Diminished level of consciousness or uncooperative
  • Active hemoptysis or pneumothorax requiring a chest tube
  • Chronic severe neuromuscular disease
  • Pregnancy
  • Patients with acute hypercapnic COPD Inclusion criteria
  • Age \> 40 years old
  • Diagnosed COPD according to the Global Initiative for Chronic Obstructive Lung Disease (GOLD) guideline (postbronchodilator forced expiratory volume at 1 second (FEV1)/forced vital capacity (FVC) \< 70%)
  • Exacerbation requiring hospitalization; at least 2 of the following criteria
  • Respiratory rate \> 24/min
  • Use of respiratory accessory muscles or paradoxical motion of the abdomen
  • Acute respiratory acidosis with arterial or venous pH \< 7.35 and/or PaCO2 \> 45 mmHg
  • Exclusion criteria
  • pH \< 7.25
  • Hemodynamic instability requiring vasopressor initiation
  • Persistent hypoxemia despite supplemental oxygen therapy
  • Diminished level of consciousness or uncooperative
  • Active hemoptysis or pneumothorax requiring a chest tube
  • Associated severe chronic neuromuscular disease
  • Pregnancy

Key Trial Info

Start Date :

January 20 2024

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

May 15 2025

Estimated Enrollment :

40 Patients enrolled

Trial Details

Trial ID

NCT06204276

Start Date

January 20 2024

End Date

May 15 2025

Last Update

January 25 2024

Active Locations (1)

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1

Faculty of Medicine Siriraj Hospital

Bangkok Noi, Bangkok, Thailand, 10700