There is an important need to maintain clinical skills, provide quality training and expertise, and provide an environment that stimulates ideas for clinical research.

This study permits inpatient evaluation and management of patients with heart disease who do not qualify to participate in studies currently being conducted by the Cardiology Branch of the National Heart, Lung, and Blood Institute.

There is an important need to maintain clinical skills, to ensure adequate training and expertise, and provide an environment that stimulates ideas for clinical research. This protocol permits inpatient evaluation and management of patients with heart disease who do not fulfill criteria for participation in existing Cardiology Branch research protocols.

Patients with signs or symptoms of heart disease.

Patients selected because of either medical or research interest to the Principal Investigator.

Patients must not have unstable angina pectoris, unstable course following recent (within one month) myocardial infarction.

Must not be in New York Heart Association functional class IV heart failure.

A positive pregnancy test will obviate any cardiovascular testing requiring ionizing radiation.