Patients with systemic rheumatic diseases admitted to the intensive care unit: what the rheumatologist needs to know.

Patients with systemic rheumatic diseases (SRDs) may require admission to the intensive care unit (ICU) throughout the course of their disease. Therefore, the rheumatologist needs an understanding of the factors which may influence the course of patients with SRDs who are admitted to ICU. These include the causes for admission, patient characteristics including comorbidities and drug therapies, outcome (in-ICU mortality and causes of death), and prognostic factors.