The viral infection of the heart can not only cause viral myocarditis and explosive myocarditis but also infective endocarditis.
Li Jingsheng has now ruled out the possibility of myocarditis, as many symptoms don't align; thus, the last remaining possibility is that the patient has infective endocarditis.
Firstly, myocarditis occurs in the myocardium, while endocarditis occurs in the endocardium, with the valves being the most commonly affected areas.
During the patient's auscultation, the coarse, loud heart murmur, supported by the Master Level skill in Cardiovascular Medicine diagnosis, assures him that if it's just a slight valve insufficiency, it couldn't cause such a loud noise.
This indicates that the valve is not only insufficiently closed but is likely also damaged by viral invasion.
