The first experience of hyperbaric oxygen therapy may naturally raise several questions: what the chamber is like, what the patient feels, how long the session lasts and what they need to know before treatment begins.
Hyperbaric oxygen therapy is a medical treatment in which the patient breathes oxygen inside a specially designed chamber where the pressure is higher than normal atmospheric pressure. The aim is to increase the amount of oxygen delivered to the body’s tissues.
To understand the basic principles of the method, you can first read about what hyperbaric oxygen is.
Before the Session
Before treatment begins, the patient undergoes a medical assessment. The doctor reviews their medical history, the condition being treated, current medication and any factors that could affect the safety of the therapy.
At this stage, the patient is informed about the procedure, its duration, the sensation of pressure and the main preparation instructions. This assessment is important because treatment must be tailored to the individual and based on a clear medical indication.
For further details, read about how hyperbaric oxygen therapy is administered.
Entering the Chamber
The patient enters the specially designed chamber and settles into a comfortable position. Depending on the type of chamber, they may be treated alone or alongside other patients, while oxygen is administered according to the prescribed treatment protocol.
Hyperbaric chambers may be monoplace or multiplace, with patients monitored continuously by trained staff.
The environment is designed to make the session as calm and comfortable as possible. The patient can relax, remain at ease and follow the instructions given by the medical team.
Gradual Increase in Pressure
The pressure inside the chamber is increased gradually. During this phase, the patient may feel pressure or a blocked sensation in the ears, similar to what is experienced during air travel.
The staff provide simple instructions, such as swallowing or performing gentle pressure-equalising manoeuvres, to help the ears adjust smoothly. This sensation is common and usually temporary.
The Main Treatment Stage
Once the required pressure has been reached, the main stage of the session begins. The patient breathes oxygen for a specified period according to their individual treatment plan.
Most patients remain relaxed throughout the session. The procedure is not painful and is carried out under continuous supervision. Its duration depends on the medical indication and the protocol determined by the doctor.
Gradual Decompression and Completion
At the end of treatment, the pressure is reduced gradually until it returns to normal atmospheric levels. Decompression is carefully controlled so that the body can adjust without sudden pressure changes.
After leaving the chamber, the patient may feel mildly tired or relaxed. In most cases, they can return to their normal daily activities unless the doctor has provided different instructions.
Is the Session Safe?
Hyperbaric oxygen therapy is generally considered safe when it is carried out in a properly equipped centre by trained staff and under continuous supervision. The FDA emphasises the importance of following operating instructions, maintaining fire-safety precautions, ensuring appropriate staff training and monitoring the patient throughout treatment.
Each patient’s suitability is always assessed individually. Read more about who hyperbaric oxygen therapy is suitable for and the main contraindications to hyperbaric oxygen therapy.
Frequently Asked Questions
Is a Hyperbaric Oxygen Therapy Session Painful?
No, the procedure is not painful. The patient may only experience mild pressure in the ears while the chamber pressure is changing.
How Long Does a Session Last?
The duration depends on the treatment protocol and the medical indication. It is determined individually by the doctor.
What Does the Patient Feel Inside the Chamber?
The patient will usually feel pressure in the ears at the beginning and end of the session. During the main treatment stage, most patients remain comfortable and relaxed.
Is Any Preparation Required Before the Session?
Yes. The medical team provides specific instructions before treatment according to the patient’s medical history and individual treatment plan.