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Hydrogen Gas Therapy for Brain Hemorrhage Patients Study Protocol

Early Hydrogen-Oxygen Gas Mixture Inhalation in Patients with Aneurysmal Subarachnoid Hemorrhage (HOMA): study protocol for a randomized controlled trial

Research hubs: Brain & Nervous System · Cardiovascular System

Scientific visualization of hydrogen therapy research for Early Hydrogen-Oxygen Gas Mixture Inhalation in Patients with Aneurysmal Subarachnoid Hemorrhage (HOMA): study protocol for a randomized controlled trial
Evidence type
Randomized controlled trial · Human study
Authors
Fa Lin, Runting Li, Yu Chen, Jun Yang, Ke Wang, Yitong Jia, Heze Han, Qiang Hao, Guangzhi Shi, Shuo Wang, Yuanli Zhao, Xiaolin Chen
Journal
Trials
Year
2024
Study Type
Human
Participants
206
Delivery
inhalation
Dose
8 hours per day, 3 L/min, for 7 days in ICU ward, initiated within 72 hours after aSAH
H₂ concentration
67% hydrogen, 33% oxygen
Duration
1 weeks
Funding
Beijing Tiantan Hospital lateral scientific research program (Grant No. HX-A-2021016)
Conflicts of interest
None declared
Peer Reviewed
Yes
Cited by
3 (OpenAlex, as of November 2026)
Country
China

TL;DR

Doctors are testing whether breathing in a special mixture of hydrogen and oxygen gas can help people who have had a serious type of brain bleed recover better by preventing dangerous complications that happen days after the injury.

Summary

This is a study protocol (a plan for a future study) describing a clinical trial that will test whether breathing a mixture of hydrogen and oxygen gas can help patients who have suffered a ruptured brain aneurysm (a burst blood vessel in the brain). The study will compare patients who receive the hydrogen-oxygen mixture to those who receive oxygen alone, measuring whether the treatment prevents complications like reduced blood flow to the brain that commonly occur after this type of injury.

Practical Takeaway

This is a study protocol describing a planned trial, not a completed study with results, so there are no findings yet to apply. The HOMA trial aims to be the first large-scale test of hydrogen therapy in aneurysm patients, but consumers should wait for actual results before drawing any conclusions about whether this treatment works.

Abstract (excerpt)

Abstract Background Aneurysmal subarachnoid hemorrhage (aSAH) is a life-threatening neurosurgical emergency with a high mortality rate. Delayed cerebral ischemia (DCI) and cerebral vasospasm (CVS) are delayed products of early brain injury (EBI), which may constitute the principal determinant…

Read the full abstract on PubMed