The extensive subject of cardiology is not amenable to detailed presentation in a short paper. Because of the relatively extensive experimental and clinical activity in this field, a summary of the current state of selected aspects of cardiology might be of interest.
The most important single therapeutic development in the field of cardiology has been the advent of antibiotics. These drugs have not only made it possible to convert almost all fatal diseases, such as bacterial endocarditis and endarteritis, to almost nonfatal ones but have played an important role in control of infections in all cardiovascular disease states. Until the introduction of these drugs, the physician was often able to manage satisfactorily the cardiac disturbances, such as congestive failure, only to have the patient die of bronchopneumonia or urinary tract infection. The fear of secondary infection as a threat to life was constantly present, and the more chronic or