Highlights a rare case of acquired collateral flow between coronary and pulmonary circulations due to mediastinal fibrosis, potentially causing coronary steal.
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Alerts clinicians to coronary steal risk in mediastinal fibrosis; hypothesis-generating for prevalence and management studies.
The development of collateral circulation is a general vascular response which is well characterised in the heart. The most common precipitant of this is ischaemia and the most common manifestation is intra coronary collateralisation. Collateral flow between the heart and other thoracic structures is also documented albeit rarely and can be congenital or acquired. In this case report we define a unique case of collateral flow between the coronary and pulmonary circulations in a complex case of mediastinal fibrosis.
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MacFadyen et al. (2003) studied this question.
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