c l i n i c a l f o l i o s : n a r r a t i v e





A D V E R T I S E M E N T

 

Aortic Valve Replacement: 25

A D V E R T I S E M E N T

   
 

The position of the coronary cardioplegia cannula is shown.       

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Aortic Valve Replacement: 26

A D V E R T I S E M E N T

   
 

The coronary arteries are the intrinsic arterial supply of the heart (see coronary circulation ). The right and left coronary arteries usually (see coronary variation ) originate in the coronary sinuses (of Valsalva) above the right and left cusps (the posterior cusp has no coronary ostium) of the aortic valve.      

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Aortic Valve Replacement: 27

A D V E R T I S E M E N T

   
 

The cannulated heart (arterial, venous, antegrade and retrograde) is seen. A metal L-shaped vent in the foreground will be inserted into the left atrium via a purse-string in the right superior pulmonary vein. This vent serves to 1) evacuate blood from the left heart providing a bloodless field; 2) keep the left ventricle from distending; and 3) evacuate trapped air as the patient is being weaned from cardiopulmonary bypass.      

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This page was last modified on 5/17/2000.