What Is HBOT?
What Is Its Evidence-Based Role After Stroke?
Understand how it works, established uses, potential risks, and why stroke treatment should not be overstated.
HBOT
Breathes near-100% oxygen
inside a pressurized chamber
More dissolved O₂
in plasma and
body tissues
Adjunct, not a replacement
Does not replace
standard stroke rehabilitation
Medical screening required
Indications, risks, and
device safety must be reviewed
HBOT (Hyperbaric Oxygen Therapy)HBOT (Hyperbaric Oxygen Therapy) involves breathing near-100% oxygen inside a chamber pressurized above normal atmospheric pressure. This can substantially increase the amount of oxygen dissolved in plasma and delivered to tissues. HBOT has established indications for selected conditions, butstroke is not an established routine indicationfor HBOT. In acute ischemic stroke, major guidelines do not recommend HBOT except in the special situation of cerebral air embolism. For chronic post-stroke deficits, evidence remains insufficient, so it should not be presented as standard rehabilitation or as a proven way to improve neurological recovery.An adjunct under investigationshould never replace evidence-based stroke care, rehabilitation, medication, or risk-factor management. Any proposed use requires physician assessment, informed discussion of uncertain benefit, and treatment in a properly operated medical facility.
and how it works 2. What the evidence says
about stroke 3. Who may be considered
and who needs caution 4. Number of sessions,
what it feels like, and safety
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What Is HBOT and How Does It Work?
Brief answer:HBOT is delivered in a monoplace or multiplace pressure chamber while the patient breathes oxygen at a pressure above normal atmospheric pressure. The treatment pressure, oxygen exposure, and session duration vary by indication and protocol. A session often lasts roughly 60–120 minutes, but this is not a universal rule.
Under pressure, more oxygen dissolves directly into theplasmaand other body fluids. This can support oxygen delivery in selected medical conditions for which HBOT has an accepted indication, such as decompression illness, carbon monoxide poisoning, certain radiation injuries, and some difficult-to-heal wounds. That physiological effect does not by itself prove benefit for stroke recovery.
What Does the Evidence Say About HBOT After Stroke?
Brief answer:HBOT isnot a standard treatment for stroke recovery.For acute ischemic stroke, current major guidelines do not recommend routine HBOT except when the stroke is caused by cerebral air embolism. For chronic stroke, studies have produced mixed and generally low-certainty findings, and recent controlled evidence has not established a clear clinical benefit.
Claims that HBOT reactivates “sleeping” brain cells, boosts neuroplasticity, or makes the brain more responsive to therapy remain hypotheses that have not been confirmed enough for routine clinical use. Rehabilitation after stroke should focus on repetitive, task-specific practice and other evidence-based interventions throughout recovery, not only during theGolden Periodso-called Golden Period. HBOT should not be marketed as a way to guarantee walking, hand recovery, speech recovery, or faster progress.
Who Might Be Considered — and Who Needs Caution?
Brief answer:Stroke alone is not a standard indication for HBOT. A person may still receive HBOT for a separate accepted indication, or in a properly reviewed research setting. Every patient requires medical screening for pressure-related risks, oxygen toxicity, ear and sinus problems, lung disease, medications, blood-glucose issues, implanted devices, and ability to tolerate the chamber.
People who may be considered
Patients who have a separate accepted indication for HBOT, such as selected non-healing wounds, radiation tissue injury, carbon monoxide poisoning, or decompression illness · participants in an approved clinical study · all after individualized medical assessment
Contraindications and precautions
Untreated pneumothorax is the key absolute contraindication · additional precautions may include certain lung conditions, difficulty equalizing ear or sinus pressure, acute fever or infection, seizure risk, some medications, poorly controlled blood glucose, severe claustrophobia, pregnancy, and incompatible implanted devices. Pregnancy is not automatically an absolute contraindication; risk–benefit assessment is required.
At KIN, any discussion of HBOT should be separated from standard stroke rehabilitation and based on a physician’s assessment. Other services such asTMSandhydrotherapyalso require their own indications and evidence review. Physical therapy, occupational therapy, speech and swallowing rehabilitation, medication, and secondary prevention remain the main components of post-stroke care. SeeKIN HBOT service information
How Many Sessions Are Needed, What Does It Feel Like, and How Safe Is It?
Brief answer:There is no evidence-based number of HBOT sessions that reliably improves stroke recovery. The number, pressure, and frequency should be determined by the accepted medical indication or a research protocol—not by a generic stroke package. During pressurization, some people feel ear pressure similar to takeoff or landing.
Common adverse effects includeear or sinus barotraumaand temporary vision changes. Less common but important risks include oxygen-toxicity seizures, lung barotrauma, low blood glucose in people with diabetes, anxiety or claustrophobia, and fire. Ear-clearing techniques do not prevent all injuries, and treatment should stop if pain, breathing difficulty, neurological symptoms, or other concerning symptoms occur.
“Families should view HBOT realistically. It is a legitimate medical treatment for specific accepted conditions, but stroke recovery is not currently one of its routine evidence-based indications. The decision should start with the strength of evidence, the patient’s goals, risks, alternatives, and total burden—not with promises of a fixed number of sessions.”
Anecha Horasat, PT — Licence No. 9685
Physical Therapist · More than 10 years of stroke-rehabilitation experience, according to the source
KIN describes itself as an integrated stroke rehabilitation center
KIN states that it offers HBOT at selected locations. Before treatment, confirm the facility’s current licence, chamber type, medical director, emergency procedures, fire-safety controls, patient screening, accepted indication, expected benefit, price, and alternatives.KIN reports that more than 6,000 families have used its services since 2018 — View the Stroke Rehabilitation ProgrammeorView HBOT Service Details
Written by
Anecha Horasat
Licensed Physical Therapist · Licence No. 9685 · MSc in Physical Therapy, Mahidol University
More than 10 years of stroke-rehabilitation experience, according to the source ·Mahidol University alumni profile (NSTDA, 2022) · KIN Rehabilitation & Homecare
Contact Us | Free Initial Assessment
Ask whether HBOT is being proposed for an accepted medical indication, a research protocol, or an off-label use, and request the expected outcome, risks, alternatives, and full cost in writing.
Lat Phrao 71 Branch
Bearing Branch (Sukhumvit 107)
Pattaya Branch
Ratchaphruek Branch
Frequently Asked Questions — Answered by the KIN Medical Team
Can HBOT cure stroke?
No. HBOT is not a cure for stroke and is not established as routine post-stroke rehabilitation. In acute ischemic stroke it is not recommended except for cerebral air embolism, and evidence for chronic stroke remains insufficient.
How many HBOT sessions are needed to see a result?
There is no validated number of sessions that reliably improves stroke recovery. Session count should follow an accepted indication or a research protocol. If HBOT is offered off-label, agree in advance on measurable goals and stopping criteria.
Is HBOT painful, and what does it feel like?
The procedure itself is usually not painful, but pressure changes can cause ear or sinus discomfort. Other risks include temporary vision changes, oxygen-toxicity seizures, lung barotrauma, low blood glucose, anxiety, and rare but serious fire-related events.
Who should not undergo HBOT?
Untreated pneumothorax is the principal absolute contraindication. Other conditions require individualized assessment, including certain lung disease, ear or sinus problems, fever or acute illness, seizure risk, medications, diabetes, pregnancy, claustrophobia, and implanted devices.
Which KIN branches provide HBOT?
KIN states that HBOT is available at selected branches. Confirm the current location, facility licence, chamber type, supervising physician, accepted indication, emergency and fire-safety procedures, price, and appointment availability by calling 02-096-4996.
Contact Us | Free Initial Assessment