RT Book, Section A1 Carson, Shannon S. A2 Hall, Jesse B. A2 Schmidt, Gregory A. A2 Wood, Lawrence D.H. SR Print(0) ID 2283878 T1 Chapter 18. Chronic Critical Illness T2 Principles of Critical Care, 3e YR 2005 FD 2005 PB The McGraw-Hill Companies PP New York, NY SN 9780071416405 LK accessanesthesiology.mhmedical.com/content.aspx?aid=2283878 RD 2023/03/23 AB Chronically critically ill patients account for 5% to 10% of patients admitted to an adult ICU. They account for as many as 88,000 hospital discharges per year in the United States. Most chronically critically ill patients are over age 65. The burden of chronic critical illness is anticipated to increase dramatically in the next decade.Chronically critically ill patients have distinct physiology compared with more acutely ill patients, including suppressed levels of anterior pituitary hormones and severe depletion of protein stores with muscle wasting.Important principles of patient management include prevention of infection, protein repletion, aggressive physical therapy, and careful attention to treating symptoms.Liberation from mechanical ventilation usually is achieved with work-rest cycles that are guided by frequent assessments of readiness for weaning and careful monitoring to avoid fatigue.One-year survival for chronically critically ill patients is between 23% and 38% in most cohorts, but younger patients with few comorbidities have distinctly better chances of survival. Quality of life for survivors is similar to that of patients with shorter periods of critical illness.Costs of care for chronically critically ill patients are extreme during hospitalization and after discharge. Cost savings can be achieved by managing patients in dedicated wards or facilities outside of the acute ICU setting.