Near drowning pulmonary edema
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- updated 13 Jan 2023:
Nothing to disclose
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Near drowning pulmonary oedema is considered an aetiological subtype of non cardiogenic pulmonary oedema. It can occur with both salt water and fresh water near-drowning.
Pathology
It is thought to result from the inhalation of either fresh water or sea water resulting in lung damage and a ventilation-perfusion mismatch.
Near drowning can be divided into three stages:
- stage 1: acute laryngospasm that occurs after inhalation of a small amount of water
- stage 2: the victim still usually presents with laryngospasm but may begin to swallow water into the stomach
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stage 3
- 10-15% of patients still present with dry drowning caused by persistence of the associated laryngospasm
- in the remaining 85-90% of patients, the laryngospasm relaxes secondary to hypoxia and large amounts of water are aspirated
Radiographic features
Radiography
Features in stages 2 and 3 on chest radiographs are usually identical to pulmonary oedema from other non-cardiac causes 3.
-<p><strong>Near drowning pulmonary oedema</strong> is considered an aetiological subtype of <a href="/articles/non-cardiogenic-pulmonary-oedema">non</a><a href="/articles/non-cardiogenic-pulmonary-oedema"> cardiogenic pulmonary oedema</a><a href="/articles/non-cardiogenic-pulmonary-oedema">.</a> It can occur with both salt water and fresh water near-drowning.</p><h4>Pathology</h4><p>It is thought to result from the inhalation of either fresh water or sea water resulting in lung damage and a ventilation-perfusion mismatch.</p><p>Near drowning can be divided into three stages:</p><ul>-<li>-<strong>stage 1:</strong> acute laryngospasm that occurs after inhalation of a small amount of water</li>-<li>-<strong>stage 2:</strong> the victim still usually presents with laryngospasm but may begin to swallow water into the stomach</li>-<li>-<strong>stage 3</strong><ul>-<li>10-15% of patients still present with dry drowning caused by persistence of the associated laryngospasm</li>-<li>in the remaining 85-90% of patients, the laryngospasm relaxes secondary to hypoxia and large amounts of water are aspirated</li>-</ul>-</li>- +<p><strong>Near drowning pulmonary oedema</strong> is considered an aetiological subtype of <a href="/articles/non-cardiogenic-pulmonary-oedema-2">non</a><a href="/articles/non-cardiogenic-pulmonary-oedema"> cardiogenic pulmonary oedema</a><a href="/articles/non-cardiogenic-pulmonary-oedema">.</a> It can occur with both salt water and fresh water near-drowning.</p><h4>Pathology</h4><p>It is thought to result from the inhalation of either fresh water or sea water resulting in lung damage and a ventilation-perfusion mismatch.</p><p>Near drowning can be divided into three stages:</p><ul>
- +<li>
- +<strong>stage 1:</strong> acute laryngospasm that occurs after inhalation of a small amount of water</li>
- +<li>
- +<strong>stage 2:</strong> the victim still usually presents with laryngospasm but may begin to swallow water into the stomach</li>
- +<li>
- +<strong>stage 3</strong><ul>
- +<li>10-15% of patients still present with dry drowning caused by persistence of the associated laryngospasm</li>
- +<li>in the remaining 85-90% of patients, the laryngospasm relaxes secondary to hypoxia and large amounts of water are aspirated</li>
- +</ul>
- +</li>
Images Changes:
Image 4 CT (lung window) ( create )
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Case 4
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4.
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