In recent decades, advances in information technology have given new impetus to telemedicine research. These advances in telemedicine range from the individual to the population and global level, allowing to deal with health problems, prevention in primary care and education of doctors through distance learning.
We found that research activity has increased dramatically in the past decade. The most important works were carried out by institutions located in high-income countries. It evolved in areas such as telestroke, teledermatology, telepsychiatry, primary care and global health.
The most important innovations (in decreasing order) were: environmental public health, psychiatry, pediatrics, health policies and services, nursing, rehabilitation, radiology, pharmacology, etc. Still, there are some gaps in the literature, namely on the use of telemedicine in low and middle income countries, where we operate and on which we publish.