Heart failure due to lung congestion? Bit Confused.

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?

Thanks.

my deepest of condolences. i think along the same lines as susie.

certainly are. kidneys as well. as i found out with acute renal failure post double by pass caused by a inotropic heart failure!! keep strong.

This is what I see in the in-patient death summary.
Patient was admitted in the ER with a history of shortness of breath for couple of weeks which worsened in the last few days, cough with expectoration and mild fever. Blood and urine cultures are normal and sterile.
Arterial Blood Gas at the time of admission showed type II respiratory failure (with CO2 -80%), and X-Rays suggested COPD. Echo showed septum, LV dysfunction, LV EF 30%, type II LV diastolic dysfunction. When she was shifted to a private room, she appeared very normal. However, on the very next day morning she was found unresponsive with cardiac arrest. CPR given, with vasopressors/ventilator support she survived for a day, and then finally her blood pressure completely crashed and she passed away.

Post Edited (CAlbert) : 9/26/2017 6:30:21 AM (GMT-6)