Computers in medicine and health care

As with the chapter on learning, we begin our discussion of health applications by examining influential early visions of the possible role of computers in improving health care and medicine. We then look at the great variety of roles played by current digital technologies in this field. We first consider the online availability of health information. There are two possible sources: one from respected centres of expertise, the other from consumers of medical care, that is, patients, who in working together form what may be viewed as communities of care. There is strong evidence that people are using these online medical resources to become more intelligent guardians of their own health and to support themselves when seeking help from physicians. Next, we examine the care improvements promised by personal health and electronic medical records. Progress here has been disappointingly slow; we shall discuss the mix of technical, cultural, administrative, interpersonal, and financial reasons for the sluggishness in development and deployment. Two particularly interesting cases of medical information are data dealing with adverse drug reactions and interactions, commonly known as adverse drug events (ADEs), and the use of big data and social media in epidemic surveillance and control, by which we are becoming better equipped to indicate, predict, and track outbreaks of disease. Computers have made a huge impact on medical education through the development of human body simulators. There also continue to be more and more advanced uses of technology embedded within the human body, either to augment the functioning of organs or to replace body parts that no longer work, which could possibly result in bionic people or androids in the future. We shall present some examples indicating the pace at which these technologies are developing. Recent advances in understanding the human genome have enabled a new form of medicine called precision medicine. The goal is to use genetic screening of patients to enable more specific treatments than were hitherto possible. Precision medicine also enables what some call designer babies. We shall introduce policy and ethical issues raised by this concept.