Influence of Preoperative Nutritional Status on Perioperative Period in Cardiac Surgery in Patients With Frailty

Exclusion Criteria

• •Patiens younger than 65 years.
• •No written consent of a person to participate in a biomedical research has been obtained;
• •Patients with a history of mental illness or central nervous system disorders that interfere with the perception and proper assessment of their health and the meaning and content of the questionnaire / tasks.
• •Patients with amputated lower extremities.
• •Patients with hepatic insufficiency, one or more of viral hepatitis.
• •It is not possible to perform a qualitative physical examination for other reasons (hearing, vision, etc.)
• •Allergy to B vitamins.