[Management of patients with risk factors].

This review deals with concomitant diseases and risk factors in patients treated for otorhinolaryngologic disease in outpatient and hospital services. Besides heart disease, lung disease, liver disease and kidney disease this article also covers disorders of coagulation (including the therapy with new anticoagulant drugs) of electrolyte hemostasis. Special attention is paid to prophylaxis, diagnosis and treatment of delirium. Also information is provided to optimize preparation of surgical procedures and pharmacotherapy.