Posted on 12/15/2021 12:14:04 PM PST by ConservativeMind
After being anesthetized and undergoing major surgery, up to one in five patients have increased levels of the protein troponin in their blood. This can be a sign of heart damage. Researchers have analyzed data from before and after the operations of 1,300 patients.
The study was focused on leakage of the protein troponin to the blood. This is a biomarker found in blood samples from patients with cardiac muscle damage. This kind of damage is, in turn, associated with cardiovascular disease or heart attacks—Major Adverse Cardiovascular and Cerebrovascular Events (MACCE). An increase in troponin is also common in patients who have had major surgery, something which an international VISION study with 22,000 patients has already shown.
"It can happen that patients leave hospital without experiencing any symptoms. The signs of cardiac muscle damage are only discovered later when measuring cardiac troponin in the blood. We took samples before, during and after the operation. Even small increases in troponin can indicate a heightened risk for serious cardiovascular complication or death," says Michelle Chew, anaesthesiologist.
The researchers were able to confirm the growth of troponin levels post-operation in some patients. They were also able to confirm the existence of a risk group—patients who had higher levels of troponin prior to the operations. An important secondary finding of the research is that many at-risk patients were anemic—that is to say, they had insufficient blood levels—prior to the operations.
There are, however, still many questions to be answered—questions which the researchers are already looking at. For example, it's not currently clear what actually causes the increase of troponin in the blood when undergoing major surgery. But the study will still be able to help identify at-risk patients.
(Excerpt) Read more at medicalxpress.com ...
Interesting - I wonder what they mean by “major surgery”. Obviously anything in the torso but does that include laparoscopic type surgeries or just ones where they have to “go in”?
Mainly I’m just curious if it’s a physiological cause or just the sheer trauma of the surgery that does it.
Low blood pressure during the operation can damage the heart, as can many other “normal” things that happen during surgery.
Yeah - but usually anesthesiologists are good about monitoring that sort of thing.
High levels can be brought on by the jab. Mother’s was.
I had open heart surgery with at triple bypass & aortic valve replacement 12 years ago and am fine ever since.
However I do have very occasional and short afib, usually not longer than a minute or two. A year ago I had a 20+ afib event that was only stopped with an IV with Cardizem.
They would have let me go but my troponin levels were up and the next day they did a full heart workup on me - stress test, EKG, and much more.
Everything checked our A+++++ like I’d never had heart disease.
Troponin levels can be a false flag.
the 20+ afib events would have caused the troponin level increase.
Typo - 20 min afib. Troponin levels low when I went in. Didn’t start rising until event was over, kept rising for several hours.
No damage whatsoever, heart is strong, my normal BP is 117/78.
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