There are a variety of ways of evaluating a studentâs progress and achievement in the internship. These include an evaluation of work by the on-site supervisor, a studentâs self-evaluation, a visit to the work site by the faculty sponsor, and specific academic requirements fulfilled by the student.
Regurgitation/Insufficiency (leaky valve) - the valve does not close properly and allows blood to flow backward as well as forward in the heart. The valves in your heart may be damaged due to infection, rheumatic heart disease, wear and tear, tissue weakening or deterioration, or birth (congenital) defects.egurgitation/Insufficiency (leaky valve) - the valve does not close properly and allows blood to flow backward as well as forward in the heart. The valves in your heart may be damaged due to infection, rheumatic heart disease, wear and tear, tissue weakening or deterioration, or birth (congenital) defects.
1 Trauma (which can damage the structure of the mitral valve) 2  Rheumatic heart disease (which is now uncommon in developed countries)  Heart attack or myocardial infarction (which can cause damage to the papillary muscles, the heart muscles that support the mitral valve)