Anatomy - RCx occlusion

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An occlusion in the RCx is shown in the coronary cineangiogram above.

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The RCX in most hearts is non-dominant and therefore does not supply the inferior wall. In many cases RCx occlusion is accompanied by posterolateral infarction and the ischemia vector in the frontal plane predominantly points to the direction of the positive pole of lead II. Consequently, the ST segment in lead I is either elevated or isoelectric.

 

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