Asthma spacer

Asthma Spacer

An asthma spacer is a medical device used by individuals with asthma to improve the delivery of medication from a metered-dose inhaler (MDI) to the lungs. Spacers are designed to make it easier for patients to inhale the medication correctly, ensuring that a higher proportion of the drug reaches the lungs rather than being deposited in the mouth or throat.

Design and Function

Asthma spacers are typically made of plastic and consist of a hollow tube with a mouthpiece on one end and a fitting for the inhaler on the other. When the inhaler is activated, the medication is released into the spacer, where it is temporarily held in suspension. This allows the patient to inhale the medication more slowly and deeply, which can be particularly beneficial for children or individuals who have difficulty coordinating the timing of inhalation with the activation of the inhaler.

Types of Spacers

There are several types of spacers available, including:

• Valved holding chambers: These spacers have a one-way valve that prevents the medication from escaping until the patient inhales. This type of spacer is particularly useful for young children or those who have difficulty using a standard spacer.

• Non-valved spacers: These are simpler devices without a valve, and they require the patient to inhale immediately after the inhaler is activated.

• Anti-static spacers: These are designed to reduce the static charge that can cause medication particles to stick to the walls of the spacer, ensuring more medication is delivered to the lungs.

Benefits of Using a Spacer

Using a spacer with an MDI can provide several benefits, including:

• Improved delivery of medication to the lungs, leading to better asthma control.
• Reduced risk of side effects, such as oral thrush, by minimizing medication deposition in the mouth and throat.
• Easier use for patients who have difficulty with the coordination required for using an inhaler alone.

How to Use an Asthma Spacer

To use an asthma spacer effectively, follow these steps:

1. Shake the inhaler well and remove the cap. 2. Attach the inhaler to the spacer. 3. Breathe out fully to empty the lungs. 4. Place the mouthpiece of the spacer in your mouth and seal your lips around it. 5. Press the inhaler to release a dose of medication into the spacer. 6. Breathe in slowly and deeply through the mouthpiece. 7. Hold your breath for about 10 seconds to allow the medication to settle in the lungs. 8. If a second dose is required, wait about 30 seconds before repeating the steps.

Maintenance and Care

Regular cleaning of the spacer is important to ensure its effectiveness. Most spacers can be washed with warm soapy water and left to air dry. It is recommended to clean the spacer at least once a week or as per the manufacturer's instructions.

Also see

• Asthma
• Metered-dose inhaler
• Inhaler technique
• Chronic obstructive pulmonary disease