MI complications

[nurmd01]

Why is LV failure one of the most common complications of MI? Why isnt RV failure also commonly seen?

Thanks

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[pathologyDO]

MI almost always occurs at the left ventricle and spares the RV. Occlusion of the LAD causes an anterior wall infarct of LV, occlusion of RCA causes a posterior wall infarct of LV, and occlusion of the LCX causes a lateral wall infarct of the LV.
Remember that the RCA gives off the right circumflex, which courses to the posterior portion of the LV

 

[nurmd01]

MI almost always occurs at the left ventricle and spares the RV. Occlusion of the LAD causes an anterior wall infarct of LV, occlusion of RCA causes a posterior wall infarct of LV, and occlusion of the LCX causes a lateral wall infarct of the LV.
Remember that the RCA gives off the right circumflex, which courses to the posterior portion of the LV

Now it makes sense, thank you

 

[aspiringmd1015]

also, which isnt written in FA i believe, but LV has a greater 02 requirement

 

[RnaPolymerase2]

LV does most of the Cardiac output delivering blood to tissues therefore has a high oxygen demand and if there is low oxygen supply (low ATP) via occlusion it will first be affected than most heart chambers.