RESUMO
AIM: To evaluate the use of health care resources and the associated costs of complex perianal Crohn's disease (CD) from the National Health System perspective. METHODS: We conducted a multicenter, retrospective, observational study in which gastroenterologists from 11 hospitals in the Community of Madrid took part. Data was collected on the direct healthcare resources (pharmacological treatments, surgical procedures, laboratory/diagnostic tests, visits to specialists and emergency departments, and hospitalizations) consumed by 97 adult patients with complex perianal CD which was active at some point between January 1, 2005, and case history review. RESULTS: We recorded 527 treatments: 73.1% pharmacological (32.3% antibiotic, 20.5% immunomodulator, 20.3% biological) and 26.9% surgical. Mean annual global cost was 8,289/patient, 75.3% (6,242) of which was accounted for by pharmacological treatments (13.44 antibiotics; 1,136 immunomodulators; 5,093 biological agents), 12.4% (1,027) by hospitalizations and surgery, 7.7% (640) by medical visits, 4.2% (350) by laboratory/diagnostic tests, and 0.4% (30) by emergency department visits. CONCLUSIONS: Pharmacological therapies, and in particular biological agents, are the main cost driver in complex perianal CD; costs due to surgery and hospitalizations are much lower.