Tele health Nursing Models in Virtual Hospitals: Effects on Patient Outcomes, Safety, and Service Efficiency in Outpatient, Critical Care, Medical Consultation, and Mental Health Services; A Systematic Review

Background: Telehealth enabled virtual hospitals are increasingly used to extend nursing care in outpatient follow-up, critical care, medical consultation, and mental health services. Studies found benefits for outcomes, safety, and efficiency, but effects differ by model and setting. Objective: To systematically review telehealth nursing models in virtual hospitals and evaluate the effects on patient outcomes, safety indicators, and service efficiency in major service lines. Methods: We conducted a systematic review of original studies according to PRISMA guidelines to evaluate nurse-involved telehealth models. Eligible designs included randomized trials and observational studies reporting at least one domain outcome (clinical outcomes, safety, or efficiency). Two reviewers independently screened records, extracted data, and assessed risk of bias using RoB 2 or ROBINS-I. Results were synthesized by service line and outcome domain. Results: Included studies covered nurse-led outpatient telemonitoring, transitional care, tele-ICU support, and telemental health care management. Telehealth nursing models were associated with reductions in readmissions and emergency visits in transitional care, improvements in symptom control and quality of life in chronic disease programs, and lower mortality or shorter ICU length of stay in tele-ICU contexts. Patient satisfaction and acceptability were positive. Conclusion: Telehealth nursing models in virtual hospitals improve outcomes and efficiency while supporting safe, continuous care. We need standardized reporting of safety indicators and implementation fidelity.