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Published on: June 18, 2021
Perimesencephalic subarachnoid hemorrhage triggered by hypoxic training during swimming
Jill Blandford1, Julio A Chalela
1Neurosciences Department, Medical University of South Carolina, Charleston, SC 29425, USA.
Introduction:
Perimesencephalic subarachnoid hemorrhage is a rare neurologic condition of unclear etiology. Multiple mechanisms have been postulated as potential triggers, but none are universally accepted.
Methods:
Single observational case report and review of the literature.
Results:
We describe a patient who developed perimesencephalic subarachnoid hemorrhage in the setting of "hypoxic training" (breath-holding while swimming). We describe the plausible pathophysiologic events that caused the hemorrhage.
Conclusion:
The occurrence of perimesencephalic subarachnoid hemorrhage during hypoxic training suggests that acute venous congestion may be a triggering factor. The increasing popularity of hypoxic training demands vigilance from health care providers.
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