Brief Answer:
One or two of medications could be responsible

Detailed Answer:
Hello,

Thanks for posting on XXXXXXX

There are all drugs will potential side effects and especially when used in some severe life threatening respiratory depression (for example with morphine even in normal doses can be fatal) while propofol when used in severe cardiac dysfunction is contraindicated.
In your situation, we can not tell exactly which drug could have accidentally caused sudden death in your mother, in as much as none would have caused. The only way is for your mom to undergo an autopsy by a certified pathologist, then we could for sure tell the culprit of her sudden death.
Besides chances of survival when a patient is undergoing femoral artery repair are 50/50 as it is a delicate surgery and could lead to severe breathing hence death.
It is best to discuss with the attending physician who did the operation to find out what might have given her death.
All the above drugs do not really interact fatally with each other and could be used safely in combination but individually could be XXXXXXX

Hope this helps and wish you the best
Dr. Nsah

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Brief Answer:
Embolism is the most likely culprit

Detailed Answer:
Hello XXXXXX

With this kind of surgeries, pulmonary embolism or myocardial infarction are the most likely culprits given that clot from femoral artery can circulate and find itself in an unwanted area which can cause respiratory and cardiac arrest hence death. Medication can not immediately be accused but could precipitate if given the wrong time and in the wrong sequence.
There are no known adverse drug interactions between the medication given but I feel that if her doctor was dealing with a large clot, then probably including anticoagulants during or after surgery should have been indicated and perhaps prevent any further complications.
The truth is, no one can tell precisely what may have happened just with the information you may provide online and will only formulate some close-to-the-truth theories just as I am trying to do now. This is so because in such situations many things could have gone wrong including use of anesthesic agent such as propofol.
Trying to figure out what happened about 2 years after will be pretty much difficult to determine, unless you have the necessary resources to start a case where an autopsy. Personally I will ask you to not pursue that course as that will mean unburying your mother before going through with it. It is best to let her rest in peace and pursue your life (even though I know it is difficult given that you will definitely be eager to know what happened).
In case you want to pursue this, know that it will require a great deal of resources and time but I do wish you the best in your endeavors.

Hope this helps and wish you the best.
Dr. Nsah

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Brief Answer:
Your welcome

Detailed Answer:
I glad I was able to help and please feel free to write back through our service as we would be pleased to assist you anytime with your health concerns.
Dr. Nsah

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