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Seastroke: a new entity?

P K Meyer1

  • 1Emergency Department, Cape Fear Memorial Hospital, Wilmington, NC 28403.

Southern Medical Journal
|July 1, 1993
PubMed
Summary
This summary is machine-generated.

Three young men experienced brain stem strokes after swimming in North Carolina waters. Researchers propose a new condition, "seastroke," possibly caused by toxic marine animal encounters, despite no visible envenomation.

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Area of Science:

  • Neurology
  • Marine Biology
  • Toxicology

Background:

  • Brain stem infarction, or stroke, is a serious neurological event.
  • Swimming in coastal waters carries potential risks, including unknown biological encounters.
  • Previous literature has not identified a specific syndrome linking aquatic exposure to brain stem strokes.

Purpose of the Study:

  • To describe a novel potential syndrome of brain stem infarction following aquatic exposure.
  • To investigate a possible link between swimming in shallow coastal waters and neurological injury.
  • To propose a new clinical entity, termed "seastroke," and explore its potential etiology.

Main Methods:

  • Case series review of three previously healthy young male patients.
  • Detailed patient history including aquatic activities and unusual water encounters.

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  • Clinical and diagnostic evaluation for stroke and potential toxic exposures.

    • Main Results:

    • Three patients developed brain stem infarction after swimming/wading in shallow southeastern North Carolina waters.
    • Each patient reported an unusual encounter with an unknown element in the water.
    • No evidence of local envenomation or other clear cause for stroke was identified.

    Conclusions:

    • The described cases may represent a previously unrecognized neurological syndrome, "seastroke."
    • A toxic marine animal encounter is speculated as a potential cause for these brain stem infarctions.
    • Further research is warranted to identify the causative agent and confirm the "seastroke" entity.