Related Experiment Video
Updated: Jul 2, 2026
04:20
Integration of Brain Tissue Saturation Monitoring in Cardiopulmonary Exercise Testing in Patients with Heart Failure
Published on: October 1, 2019
Acute oxygen therapy does not improve cognitive and driving performance in hypoxaemic COPD
Jeffrey J Pretto1, Christine F McDonald
1Department of Respiratory and Sleep Medicine, Institute for Breathing and Sleep, Austin Hospital, Heidelberg, Victoria, Australia.
Respirology (Carlton, Vic.)
|September 4, 2008
Summary
Supplemental oxygen therapy does not improve simulated driving performance or cognitive function in patients with hypoxaemic chronic obstructive pulmonary disease (COPD). These findings do not support oxygen use while driving for this population.
Area of Science:
- Respiratory Medicine
- Neurology
- Transportation Safety
Background:
- Hypoxaemia in Chronic Obstructive Pulmonary Disease (COPD) can impair cognitive and neuropsychological function.
- Previous studies have demonstrated adverse effects of low blood oxygen levels on cognitive function in hypoxaemic COPD patients.
Purpose of the Study:
- To assess the justification of supplemental oxygen therapy for driving in hypoxaemic COPD patients.
- To investigate if acute intranasal oxygen therapy improves cognitive and driving performance using computer-based simulation.
Main Methods:
- A randomized, double-blind, cross-over study involving 30 hypoxaemic COPD patients with driving licenses.
- Participants completed a 20-minute driving simulation and a 10-minute psychomotor vigilance task (PVT) under two conditions: breathing supplemental intranasal oxygen versus room air.
- Data were collected at baseline and during the randomized conditions.
Main Results:
- No statistically significant differences were observed in driving performance measures between oxygen and air conditions.
- Reaction times in the psychomotor vigilance task (PVT) showed no significant improvement with oxygen therapy.
- Mean age of participants was 72 years, with a mean driving experience of 50 years.
Conclusions:
- Acute oxygen therapy does not enhance simulated driving performance or neurocognitive function (assessed by PVT) in hypoxaemic COPD patients.
- Current data do not support recommending oxygen use for driving in this patient group.
- Further research may be needed to explore other interventions for driving safety in hypoxaemic COPD.
Related Concept Videos
01:16Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure
Oxygen therapy has emerged as a significant tool in enhancing the quality of life for patients suffering from pulmonary arterial hypertension (PAH). While this therapy has principally been studied on patients with significant hypoxemia, this therapeutic approach helps prevent potential organ damage and can be administered in the comfort of one's home.
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue, improving...
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue, improving...
01:27Oxygen Transport in the Blood
Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...
01:26COPD: Management Using Bronchodilators and Corticosteroids
Chronic obstructive pulmonary isease (COPD) involves a group of progressive lung disorders characterized by persistent airflow limitation and chronic respiratory symptoms. Asthma-COPD Overlap Syndrome (ACOS), encompassing features of both asthma and Chronic obstructive pulmonary disease (COPD), is a group of progressive lung disorders that includes chronic bronchitis, emphysema, and refractory (non-reversible) asthma. ACOS leads to complex clinical presentations that combine the inflammatory...
01:19Respiratory Assessment: Purpose and Indications
Respiratory assessment is a cornerstone of nursing assessments, crucial for the early detection of patient deterioration. This evaluation transcends routine procedures, representing a critical skill nurses must master to ensure optimal patient care.
Objectives and Importance:
The primary goal of respiratory assessment is to evaluate patients at early risk of clinical deterioration. Since respiratory distress often precedes other signs of declining health, breathing patterns and sounds become a...
Objectives and Importance:
The primary goal of respiratory assessment is to evaluate patients at early risk of clinical deterioration. Since respiratory distress often precedes other signs of declining health, breathing patterns and sounds become a...
01:23Hypoxia
Hypoxia is a medical condition characterized by an inadequate oxygen supply to body tissues. It typically manifests as a bluish discoloration of the skin and mucosae, especially in fair-skinned individuals, when hemoglobin (Hb) saturation drops below 75%.
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
01:23Physiological Control of Respiration
Introduction
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...
Breathing, a seemingly passive process, is regulated by the respiratory center in the brainstem. This center coordinates the involuntary control of respirations, which means it occurs without conscious effort, ensuring a smooth and uninterrupted pattern.
Regulation of Ventilation
The body maintains ventilation by monitoring levels of carbon dioxide (CO2), oxygen (O2), and hydrogen ion concentration (pH) in the arterial blood. Among these factors, the level of CO2 plays a crucial...