Related Experiment Video
Updated: May 1, 2026
Author Spotlight: Recent Advancements in Reoperative Foregut Surgery
Published on: September 22, 2023
Readmission to an intensive care unit after cardiac surgery: reasons and outcomes
Radosław Jarząbek1, Paweł Bugajski, Krzysztof Greberski
1Oddział Kardiochirurgii, Wielospecjalistyczny Szpital Miejski im. Józefa Strusia, Poznań. radoslawj@hotmail.com.
Insights
Intensive care unit (ICU) readmission after cardiac surgery is linked to higher mortality and complications. Advanced age, non-elective surgery, and longer initial ICU stays predict readmission risk.
Area of Science:
- Cardiology
- Critical Care Medicine
- Health Services Research
Background:
- Intensive care unit (ICU) readmission post-cardiac surgery is associated with increased mortality and resource utilization.
- Understanding readmission drivers is crucial for improving patient outcomes and managing healthcare costs.
Purpose of the Study:
- To identify the primary reasons for ICU readmission after cardiac surgery.
- To evaluate patient outcomes, including mortality and complications, for those readmitted to the ICU.
- To determine factors that predispose patients to ICU readmission.
Main Methods:
- Retrospective analysis of 2076 adult patients undergoing cardiac surgery between January 2008 and December 2010.
- Utilized dominance-based rough set approach (DRSA) to identify risk factors for ICU readmission.
- Developed "if... then..." decision rules to categorize patients by readmission risk.
Main Results:
- A readmission rate of 2.7% (56 patients) was observed.
- Key causes for readmission included hemodynamic instability (28.6%), respiratory failure (23.2%), and cardiac tamponade/bleeding (23.2%).
- Readmitted patients experienced significantly higher postoperative complications (48.2% vs. 10.2%) and in-hospital mortality (26.8% vs. 1.1%).
- Advanced age, non-elective surgery, and longer initial ICU length of stay were identified as significant predictors of readmission.
Conclusions:
- Hemodynamic instability is the leading cause of ICU readmission following cardiac surgery.
- ICU readmission significantly increases the risk of postoperative complications and in-hospital mortality.
- Proactive identification of high-risk patients (older age, non-elective surgery, prolonged initial ICU stay) is essential for readmission prevention strategies.
Background:
Intensive care unit (ICU) readmission after cardiac surgery is believed to be associated with higher in-hospital mortality and may predict poor outcomes. ICU readmissions use resources and increase treatment costs.
Aim:
To determine reasons for readmission to ICU, evaluate outcomes in these patients, and identify factors predisposing to the need for readmission to ICU.
Methods:
We retrospectively investigated a total of 2076 consecutive adult patients who underwent either isolated coronary artery bypass grafting or a valve procedure or combination of both and were discharged from our ICU between January 2008 and December 2010. To identify the factors that increase the risk of readmission to ICU, we used the dominance-based rough set approach (DRSA) which is a methodology of knowledge discovery from data. The knowledge has the form of "if... then..." decision rules relating patient characteristics to the risk of readmission to ICU.
Results:
Of 2076 patients discharged from ICU, 56 (2.7%) required a second stay in the ICU (study group) while 2020 patients needed no readmission to ICU (control group). The main causes of readmission were haemodynamic instability (28.6%, n = 16), respiratory failure (23.2%, n = 13), and cardiac tamponade or bleeding (23.2%, n = 13). The mean length of stay (LOS) in the general cardiac ward after primary discharge from ICU until readmission was 3.5 ± 4.2 days. The mean LOS in ICU after readmission was 12.5 ± 21.2 days. Postoperative complications occurred more frequently in readmitted patients (10.2% vs. 48.2%, p < 0.0001). In-hospital mortality was significantly higher in the study group (15 [26.8%] vs. 23 [1.1%] patients, p < 0.0001). As a result of applying the DRSA methodology, the algorithm generated decision rules categorizing patients into high and low ICU readmission risk. Advanced age, non-elective surgery and the length of initial ICU stay after the surgery were the factors of greatest importance for the correct categorisation of patients in the study group.
Conclusions:
The most common cause of readmission to ICU is haemodynamic instability. Postoperative complication and in-hospital mortality rates are significantly higher in patients readmitted to ICU. Factors most commonly predisposing to readmission to ICU after cardiac surgery included advanced patient age, non-elective surgery, and longer initial stay in ICU after the surgery.
More Related Videos
09:12Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery
Published on: March 27, 2018
10:38Observational Study Protocol for Repeated Clinical Examination and Critical Care Ultrasonography Within the Simple Intensive Care Studies
Published on: January 16, 2019
Related Concept Videos
01:28Cardiomyopathy VII: Pre and Post Operative Nursing Management
01:28Acute Coronary Syndrome IV: Interprofessional Care
01:28Cardiac Catheterization I: Pre-Procedure Overview
01:26Cardiac Catheterization IV: Nursing Management
01:21Cardiac Catheterization II: Right Heart Catheterization
01:26Acute Coronary Syndrome V: Nursing Management