Hydrogen Saline Improves Survival After Cardiac Arrest in Rats
Hydrogen-rich saline improves survival and neurological outcome after cardiac arrest and cardiopulmonary resuscitation in rats
Research hubs: Cardiovascular System · Brain & Nervous System
This research was done in animals. Results in animals often don't carry over to people.
- Evidence type
- Animal study (rat)
- Authors
- Ting-ting Huo, Yi Zeng, Xiao-nan Liu, Li Sun, Huan-zhi Han, Hong-guang Chen, Zhi-hong Lu, Yi Huang, Huang Nie, Hai-long Dong, Ke-liang Xie, Li-ze Xiong
- Journal
- Anesthesia & Analgesia
- Year
- 2014
- PMID
- 24937348
- Study Type
- Rat
- Delivery
- Saline (Dissolved)
- Dose
- IV injection at 1 minute before cardiopulmonary resuscitation, followed by injections at 6 and 12 hours after restoration of spontaneous circulation
- Outcome
- Positive
- Peer Reviewed
- Yes
- Cited by
- 45 (OpenAlex, as of November 2026)
- Country
- China
TL;DR
Treating rats with hydrogen-rich saline after a heart stoppage significantly increased their chances of survival and recovery of brain function by reducing damage from stress, inflammation, and cell death.
Key Finding
Hydrogen-rich saline treatment improved survival and neurological function after cardiac arrest in rats, with benefits increasing at higher doses and appearing to work by reducing oxidative stress, inflammation, and brain cell death.
Summary
Researchers gave rats hydrogen-rich saline (a salt solution containing dissolved hydrogen gas) after inducing cardiac arrest to see if it could improve survival and brain function. The treatment, given at multiple time points after resuscitation, improved survival rates and neurological outcomes in a dose-dependent manner (higher doses worked better). The benefits appeared to work by reducing harmful molecules called oxidative stress, decreasing inflammation, and preventing brain cell death.
Practical Takeaway
This rat study suggests hydrogen-rich saline may have protective effects on the brain after cardiac arrest, but it is important to note this is animal research only and has not been tested in humans. Much more research, including human clinical trials, would be needed before any conclusions could be drawn about its potential use in cardiac arrest patients.
Abstract (excerpt)
Background: Sudden cardiac arrest is a leading cause of death worldwide. Three-fourths of cardiac arrest patients die before hospital discharge or experience significant neurological damage. Hydrogen-rich saline, a portable, easily administered, and safe means of delivering hydrogen gas, can exert…