Influence of Information and Communication Technologies on Referral and Counter-Referral Between the First Level of Health Care and Tertiary Care

Information and Communication Technologies have become increasingly central to improving coordination and continuity of care within health systems, particularly in processes that require structured communication between different levels of care. This narrative literature review examines the influence of Information and Communication Technologies on referral and counter-referral processes between the First Level of Health Care and Tertiary Care, emphasizing their potential contributions, limitations, and implications for the organization of Health Care Networks. A comprehensive search was conducted in databases, focusing on studies published in the last five years that addressed the use of Information and Communication Technologies to support communication, care integration, and information exchange across levels of care. The findings were organized into three analytical categories: Information and Communication Technologies as tools to enhance interprofessional communication; challenges and barriers to Information and Communication Technologies implementation; and impacts of Information and Communication Technologies on continuity of care and network organization. The results indicate that Information and Communication Technologies facilitate more timely and accurate information sharing, support collaborative decision-making, and reduce fragmentation in patient trajectories. However, persistent challenges, such as limited interoperability, infrastructure constraints, insufficient training, and inconsistent governance, continue to hinder their full integration into routine practices. Despite these barriers, Information and Communication Technologies show significant potential to strengthen the structure and performance of Health Care Networks by improving transparency, reducing delays, and expanding access to specialized services. The review highlights the need for investments in digital infrastructure, workforce development, and policy alignment to enhance the effectiveness of Information and Communication Technologies in supporting coordinated and patient-centered care.