Possible/unlikely: Dyspnea can be the only symptom of coronary insufficiency which is what you're asking. Angina is, by definition, an uncomfortable sensation - if it's not present, there's no angina. Dyspnea, if due to myocardial ischemia, doesn't imply stability. It can be present in stable or unstable coronary syndromes.
Answered 6/23/2018
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A doctor has provided 1 answer
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