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Category:Cardiovascular System - Developmental Pathology (view source)

Revision as of 15:51, 11 June 2010

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==Great Vessels==

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===Vascular Ring Anomaly~~===~~

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===[[Vascular Ring Anomaly]]===

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~~Most commonly found in dogs and cats. Acyanotic; clinical signs due to constriction of the [[Oesophagus - Anatomy & Physiology|oesophagus]]:~~

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*Regurgiation of food, usually noticed at weaning.

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*Aspiration pneumonia.

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~~====Persistent Right Aortic Arch====~~

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~~Most common vascular ring anomaly, increased incidence in GSDs, and Irish setters. vascular ring forms between the ductus arteriosus/ligamentum arteriosum and the persistent right aorta.~~

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~~[[Megaoesophagus~~]] ~~is seen cranial to the constriction.~~

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~~Other causes include:~~

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~~[[Image:dextra-aorta.jpg|right|thumb|200px|<small><center>'''Dextra-aorta'''. Courtesy of A. Jefferies</center></small>]]~~

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~~====Double aortic arch====~~

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~~====Anomalous subclavian arteries=~~===

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~~Arise form the aortic arch rather than the brachiocephalic artery.~~

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~~''Diagnosis:''~~

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*Ventral deviation of the trachea and dilation of the oesophagus on radiology.

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*Barium swallow definitive.

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~~''Treatment:''~~

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*Surgical resection possible.

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*Dietary management usually sufficient to control regurgitation.

===Tetralogy of Fallot===

Bara

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