Related Experiment Videos
Multiple cerebral infarction in Japanese breath-hold divers: two case reports
1Department of Neurosurgery, University of Occupational and Environmental Health, Kitakyushu, Japan.
The Mount Sinai Journal of Medicine, New York
|October 3, 1998
Summary
Japanese breath-hold divers (ama) may experience neurological disturbances and cerebral infarcts from prolonged, consecutive dives. Prompt recompression is crucial for divers showing neurological symptoms after extended breath-hold diving.
Area of Science:
- Neurology
- Diving Medicine
- Physiology
Background:
- Breath-hold diving, particularly by Japanese ama, is a traditional practice.
- Extended diving sessions pose potential physiological risks.
- Understanding the neurological consequences of prolonged breath-hold diving is essential.
Observation:
- Two Japanese ama divers presented with neurological disturbances.
- These symptoms occurred after more than 3 hours of consecutive dives.
- Dives reached depths of 15-25 meters of seawater.
Findings:
- Brain magnetic resonance imaging (MRI) revealed multiple cerebral infarcts in both divers.
- The observed cerebral lesions correlated with the divers' neurological symptoms.
- Repetitive breath-hold dives over extended durations are implicated as the cause.
Implications:
- Prolonged, consecutive breath-hold diving can lead to significant neurological injury.
- Cerebral infarcts are a serious risk associated with extreme diving durations.
- Immediate recompression therapy is indicated for divers experiencing neurological symptoms post-dive.