Why Use Retrograde Cardioplegia?

Retrograde coronary sinus

coronary sinus
The coronary sinus is a collection of veins joined together to form a large vessel that collects blood from the heart muscle (myocardium). It delivers less-oxygenated blood to the right atrium, as do the superior and inferior venae cavae. It is present in all mammals, including humans.
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cardioplegia is being used for myocardial protection with ever-increasing frequency during complex cardiac operations. New methods for introducing cardioplegia into the coronary sinus have been facilitated by improved balloon-tipped catheters.

Why does retrograde cardioplegia not protect the right heart?

Retrograde cardioplegia provides poor right ventricular myocardial perfusion as assessed by contrast echocardiography and coronary ostial drainage. (2) This poor perfusion is inadequate to meet myocardial demands as demonstrated by the high right ventricular oxygen extraction after a prolonged retrograde infusion.

What is retrograde cannulation?

Andocor retrograde cardioplegia cannulae are intended to be connected to the cardioplegia line in order to infuse cardioplegic solution and blood into the patient's coronary sinus during open heart procedure.

Chloe Bennett

Chloe Bennett

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