Can momentary stress cause angina pectoris?

Hello to you all.
I have read and researched about angina pectoris before coming here to ask questions. But I need some further clarifications and I believe some professionals visit the discussions - I am looking in your directions.

Say we have a 69 year old female with cardiac problems since a kid and diagnosed with hypertension/high blood pressure, than it is pretty common to "evolve" into angina pectoris. High blood pressure seems to be among the major causes/high risk factors along with prolonged psychological stress, high levels of cholesterol.
Our subject - the 69 year old female had all this - high blood pressure, long term stress, high levels of cholesterol. My question here is a bit odd, but please be kind - I need to know if a single stressful occasion could cause angina pectoris to such person who was already predispositioned to the above-mentioned conditions. A few years ago, during an argument my mother splashed my aunt with hot coffee. The coffee was hot like very warm, but not burning hot. What my mother told me was that after being splashed with the coffee, my aunt leaned back and sat on the couch - did not faint or anything like this, but seemed shocked and not feeling good for a short time. But after half a minute or something stood up and started cleaning the coffee up, then went in the garden to do her her choirs, but was probably very angry and still very stressed. She later shared she wanted to do something in order to relieve the stress, anger and offence her heart was full of. Then she came back and went to bed where she staid for the rest of the day. She was feeling sick and staid in bed the whole second day as well. After weeks or a month aunt went for her regular appointment at her cardiologist and was diagnosed with angina pectoris. She has been relatively well since then , though I little older hence with some additional health problems, but moving, walking, going out, doing her house work. Her documents say angina pectoris - unclassified - the doctors have not bothered to determine whether it is stable or unstable, it is not her major issue with health and she has even achieved some good things like lowering her blood pressure, etc.
The thing is my mother became obsessed whether she is guilty and to what extend about her angina pectoris. It is possible that back then aunt was not going each month for her regular medical appointment, so the angina might have occurred before their fight, but could be afterwards too. And if it as afterwards, do you think such single occasion could be the direct cause of the angina pectoris? Just like if you assault someone they could immediately have a heart attack, let's say? My mother feels guilty because she sees the coffee splashing equal to a physical harm and different then their frequent and severe verbal fights they had at that time. I know she did not to a good thing, but her guilty conscious is recently soaking all her life powers and it hurts me so bad! I am researching this with the hope to give her some facts so she finds some peace. Aunt does not care about this,but my mother is depressed now, though she was not tkinging about it these eyars until a few months ago.
So do you think this occasion could be equal to physical assault and harm to someone, or it is more like the stress cause by verbal fights? And do you think this could've been the last bit that led to angina pectoris?

Now, I was already advised in another forum on the very same question that the cause of angina is the plaques that are built for years, etc. - you guys know way better than me the explanation. I had read about those plaques of course, but by that time I didn't know if they could be the only cause. So this explanation left me relieved. Bun then I dug in a little more and the physician that was replying on my post compared heart attack with angina - he said that the mechanism of triggering both is the same and now this didn't sound very good to me. The physician meant that even in cases of heart attacks (strokes too) the conditions are already set and it is not the physical/psychological stress that causes them, stress is only a trigger and that the same goes for angina. However, if it is the same for angina, this sounds to me like even though my aunt had the plaques angina could have been avoided. And he said that some people have all the conditions for angina and heart attacks, but are just very lucky and get away without one. He inssisted it's not my mum's fault - if it wasn't the coffee, it would've been something else.

And in another forum they just told me - no way, man, angina is a condition caused by a gradual deterioration in the blood vessels which supply the heart. These changes do not suddenly occur but take years to develop.

So what's your take on my query?

straydog said...
Hello & welcome to the forum. Please understood that none of us are drs here & if any were we would not be able to give medical advice as that is against the forum rules located at the top.

I agree with the physician I do not for a moment think your aunt's angina was caused by what your mother did. I have been on medication for years to help with angina. I am curious if the dr has put your aunt on any medication to help with the angina.

I can understand why your mother feels responsible, however, given the some of the aunt's cardiac history your mother needs to forgive herself & move on.

Take care.

Thanks a lot. Can you please elaborate why you think so?

I think she takes a number of medications as a person with long history of cardiac problems.