[Telehealth as state response strategy: systematic reviewLa telesalud como estrategia de respuesta del Estado: revisión sistemática].

objectiveTo identify telehealth initiatives described in the literature as a strategy for national health policies.

methodA systematic review was performed to identify articles focusing on the use of telehealth as a state response strategy to health problems or needs. The Virtual Health Library, PubMed, and Google Scholar were searched using the following keywords: "telessaude politicas", "implantacao telessaude", "telehealth policy", "telehealth America", "telehealth Asia", "telehealth Antartida", "telehealth Europe", "telehealth Africa", "telehealth Oceania". Data collection was performed from March 2016 to February 2017.

resultsTwenty-one articles describing telehealth initiatives in various countries, published in Portuguese, Spanish, and English, were analyzed. Concentration of studies on specific areas or regions was not detected. Most articles were published from 2014 to 2017. Telehealth initiatives have been used mainly to decrease health costs, for continued education of health care professionals, consultations between health care professionals, to strengthen primary health care, and to improve the access to health care in remote areas.

conclusionsTelehealth is used as state policy across the five continents, with variations in the degree of implementation. The main differences in telehealth among countries refer to infrastructure, financing, engagement of patients and caretakers, and position of the state regarding the role of telehealth.