Epidemiology and Outcomes of Patients Readmitted to the Intensive Care Unit After Cardiac Intensive Care Unit Admission
Section snippets
Methods
This study was approved by the Institutional Review Board of Mayo Clinic (IRB # 16-000722) as posing minimal risk to patients and was performed under a waiver of informed consent according to the Declaration of Helsinki. We retrospectively analyzed data from the index CICU admission of consecutive unique adult patients aged ≥18 years admitted to the CICU at Mayo Clinic Hospital St. Mary's Campus between January 1, 2007, and December 31, 2015, who survived the index CICU admission; patients who
Results
Of 10,004 unique CICU admissions, 570 (5.7%) died during the index CICU admission and were excluded (Figure 1). The remaining 9,434 CICU survivors had a mean age of 67.1 ± 15.2 years, and 3,520 (37.3%) were female. Admission diagnoses included heart failure in 45.6%, acute coronary syndrome in 43.0%, respiratory failure in 18.6%, shock in 11.1%, cardiac arrest in 9.4%, and sepsis in 5.5%. Code status was available in 6,336 (67.2%) and was full code in 88.3% of these patients on CICU admission;
Discussion
In this large single-center cohort of tertiary-care center CICU survivors, we observed a low ICU readmission rate with most readmissions for noncardiovascular causes such as respiratory failure. Patients who were readmitted to the ICU had longer hospital LOS and were at higher risk of in-hospital mortality, as expected based on their higher risk profile. The risk of ICU readmission was higher in patients with critical care admission diagnoses, and the 3 strongest risk factors for ICU
Disclosures
The authors have no conflicts of interest to declare.
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