Title: Carbon monoxide poisoning increases the risk of PE/DVT<br/>Author: Hong Kim<br/><a href='http://umem.org/profiles/faculty/526/'>[Click to email author]</a><hr/><p>
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Carbon monoxide is an odorless gas that can cause neurologic and cardiovascular toxicity. It is produce by combustion of organic materials/fuel such as natural gas (furnace, gas stove, water heater, space heater) or gasoline. DVT/PE has been reported among victims of CO poisoning. </p>
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A recently published article investigated the risk of DVT/PE after CO poisoning. </p>
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Study design: cohort-cross over study (cross over at 1 year after CO poisoning)</li>
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Setting: South Korea</li>
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Data source: National Health Insurance Service database</li>
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<strong>Results</strong></p>
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22,699 patients with CO poisoning were identified between 2004 and 2015</p>
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30 days after CO poisoning</p>
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Risk of PE: OR of 22.0; 95% CI: 5.33 to 90.75</li>
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Risk of DVT: OR of 10.33; 95% CI: 3.16 to 33.80</li>
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90 days after CO poisoning</p>
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Risk of PE/DVT: OR of 3.96; 95% CI: 2.5 to 6.25</li>
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No significant increase in risk > 90 days.</p>
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<strong>Conclusion</strong></p>
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Patients are at highest risk of developing PE/DVT during first 30 days after CO poisoning.</li>
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Increased risk of PE/DVT persisted up to 90 days after CO poisoning.</li>
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<fieldset><legend>References</legend>
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Cho Y et al. Risk of venous thromboembolism after carbon monoxide poisoning: a nationwide population-based study. Ann of Emerg Med. 2020;75:587-596.</p>
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