A brief history of medical cross-consultations

Physicians have long needed and sought out the support and advice of experienced colleagues. This practice, endorse by Hippocrates and Galen, remaining unchanged until the Enlightenment. During that age, cross-consultations boomed. Monographic works were written, the characteristics and qualities that consulting physician had to possess were studied the problems that it could cause were examined, and rules and guidelines to follow during a cross-consultation were established. It remained unchanged until the end of the 19th century, when the emergence of various medical specialties offered the possibility of seeking specialized assistance. This specialization gave rise to a fragmentation of medical care which favored the emergence of the internist as a "universal consultant." In the last quarter of the 20th century, in light of the importance of and problems arising from cross-consultation, it began to be studied on its own, specialized services were created to attend to them, and, finally, comanagement appeared.