Perioperative Risk Factors for Intensive Care Unit Readmissions and Mortality After Cardiac Surgery

Nursing care complexity as a predictor of adverse events in patients transferred from ICU to hospital ward after general surgery

OBJECTIVES

Predicting the likelihood of adverse events following discharge from the intensive care unit (ICU) can contribute to improving the quality of surgical care. This study aimed to evaluate the impact of nursing care complexity as a predictor of adverse event development in general surgery patients transferred from the ICU to the hospital ward.

METHODS

A prospective observational study was conducted with 100 patients in the ICU and general surgical inpatient unit of a training and research hospital in Istanbul, Turkey. The Nursing Care Complexity tool was used by ICU and hospital ward nurses to measure nursing complexity.

RESULTS

A total of 65 adverse events developed in 51 patients during hospital ward hospitalization after discharge from the ICU. Nursing care complexity evaluations by the ICU nurses predicted overall and some specific adverse events, while hospital ward nurses' evaluations predicted ICU readmission and some follow-up abnormalities such as patients' blood pressure, pulse rate, and laboratory results.

CONCLUSION

The results of the current study validate that nursing care complexity can serve as a valuable tool for predicting the risk of adverse events and ICU readmission following discharge from the ICU.

IMPLICATIONS FOR CLINICAL PRACTICE

The use of the Nursing Care complexity tool by the ICU and even hospital ward nurses after ICU discharge may have a significant impact on patient outcomes and contribute to the recognition of nursing efforts.

Trends in Cardiovascular Surgery in South Korea: A Nationwide Cohort Study from 2010 to 2019

OBJECTIVES

We aimed to investigate mortality and its associated factors in cardiovascular surgery-associated intensive care unit (ICU) admissions in South Korea from 2010 to 2019.

DESIGN

Population-based cohort study.

SETTING

Data from the National Health Insurance Service database in South Korea were used in this study.

PARTICIPANTS

All adult patients admitted to the ICU associated with cardiovascular surgery in South Korea between January 1, 2010 and December 31, 2019 were analyzed.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

A total of 62,794 ICU admissions associated with cardiovascular surgery were included in the analysis (median value of age: 65 years; 58.0% men). This included patients who underwent coronary artery bypass grafting (CABG) only (n = 10,704), valve-only surgery (n = 35,812), CABG + valve surgery (n = 3,230), aortic procedures (n = 7,968), and others (n = 5,080). The number of cardiovascular surgeries associated with ICU admissions was 4,409 in 2010, which gradually increased to 10,366 in 2019. The aortic procedure group had the highest 1-year mortality rate after cardiovascular surgery (15.7%), followed by the CABG + valve (13.2%), others (11.5%), CABG-only (9.5%), and valve-only (8.7%) groups. Invasive life support procedures during the ICU stay and hospital admission through the emergency room were potential risk factors for 1-year mortality after cardiovascular surgery.

CONCLUSIONS

Cardiovascular surgery-associated intensive care admissions gradually increased from 2010 to 2019 in South Korea. Among these patients, the highest 1-year mortality rate was observed in the aortic procedures group, followed by the CABG + valve, others, CABG-only, and valve-only groups.

Status and Risk Factors in Patients Requiring Unplanned Intensive Care Unit Readmission Within 48 Hours: A Retrospective Propensity-Matched Study in China

Aim

This study investigated the current status and related risk factors of 48-hour unplanned return to the intensive care unit (ICU) to reduce the return rate and improve the quality of critical care management.

Methods

Data were collected from 2365 patients discharged from the comprehensive ICU. Multivariate and 1:1 propensity score matching analyses were performed.

Results

Forty patients (1.69%) had unplanned readmission to the ICU within 48 hours after transfer. The primary reason for return was respiratory failure (16 patients, 40%). Furthermore, respiratory failure (odds ratio [OR] = 5.994, p = 0.02) and the number of organ failures (OR = 5.679, p = 0.006) were independent risk factors for unplanned ICU readmission. Receiver operating characteristic curves were drawn for the predictive value of the number of organ injuries during a patient's unplanned transfer to the ICU (area under the curve [AUC] = 0.744, sensitivity = 60%, specificity = 77.5%).

Conclusion

The reason for patient transfer and the number of organ injuries during the process were independent risk factors for patients who were critically ill. The number of organs damaged had a predictive value on whether the patient would return to the ICU within 48 hours.

ICU Readmission in Cardiac Surgical Subset: A Problem Worth Pondering

Over the past decades, there have been noteworthy advancements in the cardiac surgical practice that have assisted fast-tracking and enhanced recovery after cardiac surgery (ERACS). With that said, intensive care unit (ICU) readmission in this high-risk patient cohort entails a significant morbidity–mortality burden. As an extension of the same, there has been a heightened emphasis on a comprehensive evaluation of the predisposition to readmission following a primary ICU discharge. However, the variability of the institutional perioperative practices and the research complexities compound our understanding of this heterogeneous outcome of readmission, which is intricately linked to both patient and organizational factors. Moreover, a discussion on ICU readmission in the recent times can only be rendered comprehensive when staged in close conjunction to the fast-tracking practices in cardiac surgery. From a more positive probing of the matter, a preventative outlook can likely mitigate a part of the larger problem of ICU readmission. Herein, focused cardiac prehabilitation programs can play a potential role given the emerging literature on the positive impact of the former on the most relevant readmission causes. Therefore, the index review article aims to address the subject of cardiac surgical ICU readmission, highlighting the magnitude and burden, the causes and risk-factors, and the research complexities alongside deliberating the topic in the present-day context of ERACS and cardiac prehabilitation.