One appropriate answer would be that, except in cases of real emergency, it is always a judgement call. There will always be a professional who says the patient should have gone sooner, and another who says s/he could wait a few more months or years.
I have read numerous different approaches to defining when someone is ready to have valve surgery. As with any cut-and-dried formulations intended to apply to the general run of humanity, they all have shortcomings.
- The existence of patient symptoms, such as angina, shortness of breath, palpitations, sleep apneas and disturbances, and even anxiety. Yes, anxiety can be a symptom of heart disease - in some people, the body apparently senses the problem by lack of oxygenation or similar and sends out panic chemicals. Some people do not have, fail to recognize, or refuse to acknowledge symptoms.
- When the aortic valve's anulus (valve opening) is less than 1 cm², or .8 cm², or .6 cm², depending on the physician and the size and activity level of the patient. What's sauce for the goose isn't necessarily sauce for the gander. Some bike racers have been brought in, symptomless, for emergency surgery at .6 cm² or less, but I was more than ready at .89 cm².
- When the ascending aorta is larger than 4.5 cm, or 4.8 cm, or 5 cm, or (gasp!) even higher, depending on the physician. There are a number of VR members who dissected at smaller sizes, and were extremely fortunate to even live through the experience, often with long-term consequences. I believe they would hold unanimously that waiting six months with a 5.0 cm aorta and risking dissection borders on criminal malpractice.
- When one or more of the atriums or ventricles gets too large, or the heart walls thicken excessively. Unbelievably, this is not monitored based on the patient's original heart size. Because of this, one can, like the Grinch, have his heart "grow three sizes" and still not show up on the chart as having an enlarged heart. Obviously, that is a poor way to tailor information to a particular person. When you get your echoes, save them to be able to compare valuable information like that.
The numbers are important when there are no reported symptoms. The symptoms are important when the numbers don't seem to be enough.
All anaerobic exercises and even many aerobic exercises are
not advised for people with moderate to severe aortic stenosis. Walking is one of the exceptions, but not speed-walking, so leave the timer home. Exercise will
not keep a valve from calcifying. That has been proven over and over again. Nor is there evidence that diet will prevent it, although proper weight and good nutrition will always help the body in a general sense.
I believe that in Oona's case, the diagnosis was poorly done or badly explained, and would not likely have held up over time regardless, which is one reason you so often hear the refrain for a second opinion on VR. A statement that someone will require valve surgery in five years is simply a guess, as everyone's rate of stenosis is different, and can even stall for periods of time in individuals.
The Big Generalizations: Cardiologists tend to wait, as they see surgery as a big risk jump for their patients, and potentially a reason to blame them for "giving up" on someone, and sending them to scary open-heart surgery when there might have been "something else that could have been tried." Surgeons tend to go earlier, because they have much better and faster post-surgical results in patients whose hearts have not already been permanently damaged. In the worst case, they are also less likely to have a casualty on their table. Cardiologists point out that once you have had the surgery, your heart is changed forever. Surgeons say, "Yes, and it's for the better."
These generalizations hold up pretty well, in my opinion, even though it
was my cardiologist who originally told me to go find a surgeon. The average run will fall within the generalizations, though, based on general observation of VR postings. It comes down to a high-stakes game of chicken: how long can you avoid surgery without cusing the the heart to develop permanent damage from the valve disease.
Surgeons' opinions aren't always to go to surgery, as a number of eager Waiting Room posters have found out over time. They are aware of their reputation as scalpel-toting monomaniacs, and are concerned about claims of unnecessary surgery from both inside and outside of the medical profession.
My own gut response is to lean somewhat toward surgery. If there is doubt, why would you risk a permanent infirmity to push back surgery that you will eventually have to have anyway? Is six months' delay worth permanent atrial or ventricular fibrillation, or on-and-off congestive heart failure symptoms for the rest of your life? We do live with small tradeoffs in life. However, it is also undeniably sweet to avoid
big compromises.
The point, when you appear to be getting close, of having the opinions of both is that you really can't know your cardiologist's personal philosophy about surgery, or whether he may have been lulled into inaction by the slow path of the disease. The opinions of the second cardiologist and the surgeon are a reality check for both you and your cardiologist. In the end, the patient often makes the decision for him or herself when s/he feels ready (assuming, of course, that there is also at least a surgeon who agrees that it is time), or goes with the opinion of the professional s/he feels most competent.
Best wishes,