Exploring Recidivism in Cardiac Surgical ICU: Can this Understanding Translate to Enhanced Patient Outcomes?

Area of Science:

• Cardiology
• Critical Care Medicine
• Health Services Research

Background:

• Intensive care unit (ICU) readmission, or recidivism, after cardiac surgery is linked to adverse outcomes including increased morbidity, mortality, resource utilization, and costs.
• Recidivism is considered a key indicator of ICU care quality.
• Limited data exists from India on the incidence, outcomes, and risk factors of cardiac surgical ICU readmissions.

Purpose of the Study:

• To investigate the incidence, causes, outcomes, and predictive risk factors of ICU readmission in post-cardiac surgery patients in a tertiary care setting in India.

Main Methods:

• A nested case-control study was conducted involving 1,711 adult patients undergoing cardiac surgery over two years.
• Patients were categorized into readmitted (recidival) and non-readmitted (control) groups.
• Analysis included reasons for readmission, patient outcomes, and identification of predictive risk factors for readmission.

Main Results:

• The ICU readmission rate was 3.1% (54 out of 1,711 patients).
• Common causes for readmission included cardiac arrhythmias (41%), pericardial effusion (15.2%), and infection (13.5%).
• Readmissions were more frequent after valvular interventions compared to coronary artery bypass grafting. Independent risk factors identified were high EuroSCORE 2, older age, surgical reexploration, postoperative pulmonary complications, and infections. Mortality was significantly higher in readmitted patients (7.4% vs. 1.4%), and their mean hospital stay was substantially longer (17.6 days vs. 7.6 days).

Conclusions:

• ICU recidivism in cardiac surgery patients is associated with prolonged hospital stays, poorer outcomes, and increased mortality.
• Postoperative cardiac dysrhythmia emerged as the most frequent reason for readmission in this cohort.
• Early identification of high-risk patients and prompt management of cardiopulmonary complications are crucial for improving outcomes.