ARNAS G. Brotzu is a national-level, highly specialized public healthcare organization based in Cagliari, Sardinia, under the Autonomous Region of Sardinia. It brings together three hospitals: San Michele, a second-level emergency and admissions department; Armando Businco Oncology Hospital; and Antonio Cao Pediatric Microcythemia Hospital.

The organization provides hospital care and specialist services across areas including neurology and stroke care, hematology and bone marrow transplantation, nephrology, dialysis and transplantation, and metabolic and obesity surgery. Its services also include adult and pediatric emergency departments, outpatient appointments, admissions, laboratory testing, blood transfusion, and clinical record requests. Patients can access booking and information through services such as the CUP, online reports, the regional electronic health record, and digital service portals.

ARNAS G. Brotzu also supports blood, plasma, cord blood, and organ donation, and offers patient guidance through its public relations office and reception services. With 835 beds, it serves a broad community while promoting care pathways, clinical quality, research, and innovation through specialist programs and professional events