My mom, aged 78, underwent angioplasty/stent for MI around 5 years back. However, after the heart attack she was perfectly fine, and active, other than getting frequent lung congestion.
At the time of of MI, her EFR was 40%. However, 5 months back her LVEF/Ejection fraction increased to 46%, and all the other reports appeared perfectly normal. Can 46% EFR cause lung congestion?
Recently she went to another city, where she developed severe wheezing, phlegm, and COPD (Chronic Obstructive Pulmonary Disease). At the time of admission to hospital again, her CPK was 700, but Troponin was normal. The CO2 in blood was 80%, and the doctors were telling she was not getting enough oxygen from lungs. In critical care, the CO2 level was brought down to 40%, and one day after we shifted her to a normal room from critical, unfortunately my mom passed away due to another MI.
I'm bit confused, trying to understand - whether not enough oxygen from lung had damaged the heart, or other way where the heart was not pumping enough blood to lungs? I thought 46% EFR is okay for old aged people. What could be the reason for this second massive MI?
Can any expert/experience member(s) in this forum can comment on this?