What is it about?

Hypoxaemia in patients prior to general anaesthetic always requires very careful assessment. We report a very unusual case of right-to-left cardiac shunting which was caused and treated by alterations in thoracic anatomy

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Why is it important?

Our case highlights the importance of considering a right to left cardiac shunt in the differential of those with hypoxaemia. It also illustrates the importance of ordering appropriate investigations, such as a bubble study, in the work up of those with hypoxaemia. Furthermore the case exhibits the potential influence of thoracic anatomy on oxygenation.

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This page is a summary of: Unusual case of preoperative hypoxaemia, Thorax, January 2020, BMJ,
DOI: 10.1136/thoraxjnl-2019-213473.
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