Case Report J Neuroophthalmol 2019 Canadian

Multifocal Stroke From Ozone Gas Emboli

Freund P, Alshafai L, Margolin E — J Neuroophthalmol, 2019

View Original on PubMed PMID 30741783

Tier 2, Indexed

Automatically imported from PubMed based on relevance criteria.

Summary

What Researchers Did

Canadian researchers reported a case of a 34-year-old man with chronic neck pain who suffered multifocal strokes after cervical ozone injections, with arterial gas visible on CT angiography in the right vertebral artery.

What They Found

The patient developed ataxia, aphasia, hemiparesis, and eye movement problems after his last ozone injection. CT angiography confirmed intra-arterial gas. Multiple posterior circulation infarcts were seen on MRI. HBOT was part of the emergency management.

Canadian Relevance

This is a Canadian case report from a Canadian center, illustrating HBOT use for arterial gas embolism -- an OHIP-covered indication in Ontario.

Study Limitations

A single case report cannot quantify the risk of gas embolism from ozone injections overall; larger surveillance data would be needed to estimate true complication rates.

This plain-language summary is generated with AI assistance and checked against the source abstract before publication. See our editorial policy.

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Study Details

Study Type	Case Report
Category	Neurological
Source	Pubmed
PubMed ID	30741783
Year Published	2019
Journal	J Neuroophthalmol
MeSH Terms	Adult; Chronic Disease; Embolism, Air; Exercise Therapy; Humans; Hyperbaric Oxygenation; Injections, Intra-Arterial; Magnetic Resonance Imaging; Male; Neck Pain; Oxidants, Photochemical; Ozone; Stroke; Vertebral Artery

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Last reviewed: March 19, 2026 | Reviewed by: Canada Hyperbarics Editorial Team | Editorial process | Research sources | Counts & methodology