Telemedicine as a Modality of Health Care Delivery and its Implications

Abstract
This chapter provides both formal and operational definitions of telemedicine as well as the related concepts of telehealth, e-health, and m-health, and reviews the origin and historical evolution of the nomenclature and content of telemedicine over the last century. The rationale for telemedicine is discussed in terms of potential effects on improving access to care, especially for underserved, remote and isolated populations, redressing inequities in quality and cost containment in terms of greater efficiency and risk avoidance, not only singly but also symbiotically. The current status of telemedicine and the reasons for its limited diffusion to date are discussed. Finally, the empirical evidence is briefly reviewed, selecting one application as an example. The chapter concludes with an optimistic expectation of continued proliferation of the field to serve the common good.